./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem01_label17_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_3fb38d4d-acaf-4367-9f70-f49fe0c785e0/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_3fb38d4d-acaf-4367-9f70-f49fe0c785e0/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_3fb38d4d-acaf-4367-9f70-f49fe0c785e0/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_3fb38d4d-acaf-4367-9f70-f49fe0c785e0/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem01_label17_true-unreach-call_false-termination.c -s /tmp/vcloud-vcloud-master/worker/working_dir_3fb38d4d-acaf-4367-9f70-f49fe0c785e0/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_3fb38d4d-acaf-4367-9f70-f49fe0c785e0/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 aac67f6dc6529e5dab098a5e1960c3e19b78df96 .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 01:14:12,912 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-09 01:14:12,913 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-09 01:14:12,919 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-09 01:14:12,919 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-09 01:14:12,919 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-09 01:14:12,920 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-09 01:14:12,921 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-09 01:14:12,921 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-09 01:14:12,922 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-09 01:14:12,922 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-09 01:14:12,922 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-09 01:14:12,923 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-09 01:14:12,923 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-09 01:14:12,923 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-09 01:14:12,924 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-09 01:14:12,924 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-09 01:14:12,925 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-09 01:14:12,926 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-09 01:14:12,927 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-09 01:14:12,927 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-09 01:14:12,928 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-09 01:14:12,929 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-09 01:14:12,929 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-09 01:14:12,929 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-09 01:14:12,929 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-09 01:14:12,930 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-09 01:14:12,930 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-09 01:14:12,930 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-09 01:14:12,931 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-09 01:14:12,931 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-09 01:14:12,931 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-09 01:14:12,931 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-09 01:14:12,932 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-09 01:14:12,932 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-09 01:14:12,932 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-09 01:14:12,932 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_3fb38d4d-acaf-4367-9f70-f49fe0c785e0/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-12-09 01:14:12,939 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-09 01:14:12,939 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-09 01:14:12,940 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-09 01:14:12,940 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-09 01:14:12,940 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-09 01:14:12,940 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-09 01:14:12,940 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-09 01:14:12,940 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-09 01:14:12,941 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-09 01:14:12,941 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-09 01:14:12,941 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-09 01:14:12,941 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-09 01:14:12,941 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-09 01:14:12,941 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-09 01:14:12,941 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-09 01:14:12,941 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-09 01:14:12,941 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-09 01:14:12,942 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-09 01:14:12,942 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-09 01:14:12,942 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-09 01:14:12,942 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-09 01:14:12,942 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-09 01:14:12,942 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-09 01:14:12,942 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-09 01:14:12,942 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-09 01:14:12,942 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-09 01:14:12,942 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-09 01:14:12,942 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-09 01:14:12,943 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 01:14:12,943 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-09 01:14:12,943 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-09 01:14:12,943 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-09 01:14:12,943 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-09 01:14:12,943 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-09 01:14:12,943 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-09 01:14:12,943 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-09 01:14:12,943 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_3fb38d4d-acaf-4367-9f70-f49fe0c785e0/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 -> aac67f6dc6529e5dab098a5e1960c3e19b78df96 [2018-12-09 01:14:12,960 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-09 01:14:12,968 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-09 01:14:12,970 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-09 01:14:12,970 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-09 01:14:12,971 INFO L276 PluginConnector]: CDTParser initialized [2018-12-09 01:14:12,971 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_3fb38d4d-acaf-4367-9f70-f49fe0c785e0/bin-2019/utaipan/../../sv-benchmarks/c/eca-rers2012/Problem01_label17_true-unreach-call_false-termination.c [2018-12-09 01:14:13,007 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_3fb38d4d-acaf-4367-9f70-f49fe0c785e0/bin-2019/utaipan/data/089ad506d/348786bb8dea4c50aa13700b3001ec38/FLAG843df1405 [2018-12-09 01:14:13,368 INFO L307 CDTParser]: Found 1 translation units. [2018-12-09 01:14:13,368 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_3fb38d4d-acaf-4367-9f70-f49fe0c785e0/sv-benchmarks/c/eca-rers2012/Problem01_label17_true-unreach-call_false-termination.c [2018-12-09 01:14:13,375 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_3fb38d4d-acaf-4367-9f70-f49fe0c785e0/bin-2019/utaipan/data/089ad506d/348786bb8dea4c50aa13700b3001ec38/FLAG843df1405 [2018-12-09 01:14:13,383 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_3fb38d4d-acaf-4367-9f70-f49fe0c785e0/bin-2019/utaipan/data/089ad506d/348786bb8dea4c50aa13700b3001ec38 [2018-12-09 01:14:13,385 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-09 01:14:13,386 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-09 01:14:13,386 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-09 01:14:13,387 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-09 01:14:13,389 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-09 01:14:13,389 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 01:14:13" (1/1) ... [2018-12-09 01:14:13,391 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a1782ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:14:13, skipping insertion in model container [2018-12-09 01:14:13,391 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 01:14:13" (1/1) ... [2018-12-09 01:14:13,395 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-09 01:14:13,420 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-09 01:14:13,603 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 01:14:13,606 INFO L191 MainTranslator]: Completed pre-run [2018-12-09 01:14:13,700 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 01:14:13,710 INFO L195 MainTranslator]: Completed translation [2018-12-09 01:14:13,710 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:14:13 WrapperNode [2018-12-09 01:14:13,710 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-09 01:14:13,710 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-09 01:14:13,711 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-09 01:14:13,711 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-09 01:14:13,716 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:14:13" (1/1) ... [2018-12-09 01:14:13,724 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:14:13" (1/1) ... [2018-12-09 01:14:13,728 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-09 01:14:13,728 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-09 01:14:13,728 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-09 01:14:13,728 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-09 01:14:13,734 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:14:13" (1/1) ... [2018-12-09 01:14:13,734 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:14:13" (1/1) ... [2018-12-09 01:14:13,736 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:14:13" (1/1) ... [2018-12-09 01:14:13,736 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:14:13" (1/1) ... [2018-12-09 01:14:13,751 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:14:13" (1/1) ... [2018-12-09 01:14:13,757 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:14:13" (1/1) ... [2018-12-09 01:14:13,760 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:14:13" (1/1) ... [2018-12-09 01:14:13,762 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-09 01:14:13,763 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-09 01:14:13,763 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-09 01:14:13,763 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-09 01:14:13,763 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:14:13" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3fb38d4d-acaf-4367-9f70-f49fe0c785e0/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 01:14:13,793 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-09 01:14:13,793 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-09 01:14:13,793 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-12-09 01:14:13,793 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-12-09 01:14:13,793 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-09 01:14:13,793 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-09 01:14:13,793 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-09 01:14:13,793 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-09 01:14:14,327 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-09 01:14:14,327 INFO L280 CfgBuilder]: Removed 1 assue(true) statements. [2018-12-09 01:14:14,327 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 01:14:14 BoogieIcfgContainer [2018-12-09 01:14:14,328 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-09 01:14:14,328 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-09 01:14:14,328 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-09 01:14:14,331 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-09 01:14:14,331 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 01:14:13" (1/3) ... [2018-12-09 01:14:14,331 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e32af30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 01:14:14, skipping insertion in model container [2018-12-09 01:14:14,332 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:14:13" (2/3) ... [2018-12-09 01:14:14,332 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e32af30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 01:14:14, skipping insertion in model container [2018-12-09 01:14:14,332 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 01:14:14" (3/3) ... [2018-12-09 01:14:14,333 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem01_label17_true-unreach-call_false-termination.c [2018-12-09 01:14:14,341 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-09 01:14:14,347 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-09 01:14:14,360 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-09 01:14:14,386 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-09 01:14:14,387 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-09 01:14:14,387 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-09 01:14:14,387 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-09 01:14:14,387 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-09 01:14:14,387 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-09 01:14:14,387 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-09 01:14:14,387 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-09 01:14:14,404 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states. [2018-12-09 01:14:14,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2018-12-09 01:14:14,413 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 01:14:14,413 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 01:14:14,415 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 01:14:14,419 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 01:14:14,419 INFO L82 PathProgramCache]: Analyzing trace with hash -1778503114, now seen corresponding path program 1 times [2018-12-09 01:14:14,420 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 01:14:14,450 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 01:14:14,450 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 01:14:14,450 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 01:14:14,450 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 01:14:14,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 01:14:14,665 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 01:14:14,666 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 01:14:14,666 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-09 01:14:14,667 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 01:14:14,670 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-09 01:14:14,678 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-09 01:14:14,678 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-09 01:14:14,680 INFO L87 Difference]: Start difference. First operand 207 states. Second operand 3 states. [2018-12-09 01:14:15,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 01:14:15,095 INFO L93 Difference]: Finished difference Result 547 states and 938 transitions. [2018-12-09 01:14:15,095 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-09 01:14:15,096 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 122 [2018-12-09 01:14:15,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 01:14:15,104 INFO L225 Difference]: With dead ends: 547 [2018-12-09 01:14:15,105 INFO L226 Difference]: Without dead ends: 278 [2018-12-09 01:14:15,107 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-09 01:14:15,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2018-12-09 01:14:15,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 278. [2018-12-09 01:14:15,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 278 states. [2018-12-09 01:14:15,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 412 transitions. [2018-12-09 01:14:15,142 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 412 transitions. Word has length 122 [2018-12-09 01:14:15,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 01:14:15,143 INFO L480 AbstractCegarLoop]: Abstraction has 278 states and 412 transitions. [2018-12-09 01:14:15,143 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-09 01:14:15,143 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 412 transitions. [2018-12-09 01:14:15,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2018-12-09 01:14:15,145 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 01:14:15,146 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 01:14:15,146 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 01:14:15,146 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 01:14:15,146 INFO L82 PathProgramCache]: Analyzing trace with hash -850587645, now seen corresponding path program 1 times [2018-12-09 01:14:15,146 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 01:14:15,147 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 01:14:15,147 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 01:14:15,147 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 01:14:15,147 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 01:14:15,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 01:14:15,234 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 01:14:15,234 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 01:14:15,235 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-09 01:14:15,235 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 01:14:15,236 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-09 01:14:15,236 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-09 01:14:15,236 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-09 01:14:15,236 INFO L87 Difference]: Start difference. First operand 278 states and 412 transitions. Second operand 3 states. [2018-12-09 01:14:15,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 01:14:15,498 INFO L93 Difference]: Finished difference Result 820 states and 1233 transitions. [2018-12-09 01:14:15,498 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-09 01:14:15,498 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 139 [2018-12-09 01:14:15,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 01:14:15,501 INFO L225 Difference]: With dead ends: 820 [2018-12-09 01:14:15,501 INFO L226 Difference]: Without dead ends: 548 [2018-12-09 01:14:15,503 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-09 01:14:15,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 548 states. [2018-12-09 01:14:15,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 548 to 413. [2018-12-09 01:14:15,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 413 states. [2018-12-09 01:14:15,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 413 states to 413 states and 593 transitions. [2018-12-09 01:14:15,521 INFO L78 Accepts]: Start accepts. Automaton has 413 states and 593 transitions. Word has length 139 [2018-12-09 01:14:15,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 01:14:15,522 INFO L480 AbstractCegarLoop]: Abstraction has 413 states and 593 transitions. [2018-12-09 01:14:15,522 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-09 01:14:15,522 INFO L276 IsEmpty]: Start isEmpty. Operand 413 states and 593 transitions. [2018-12-09 01:14:15,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2018-12-09 01:14:15,525 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 01:14:15,525 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-12-09 01:14:15,525 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 01:14:15,526 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 01:14:15,526 INFO L82 PathProgramCache]: Analyzing trace with hash 252066703, now seen corresponding path program 1 times [2018-12-09 01:14:15,526 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 01:14:15,527 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 01:14:15,527 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 01:14:15,527 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 01:14:15,527 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 01:14:15,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 01:14:15,601 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 01:14:15,601 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 01:14:15,601 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-09 01:14:15,601 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 01:14:15,602 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-09 01:14:15,602 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-09 01:14:15,602 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-12-09 01:14:15,602 INFO L87 Difference]: Start difference. First operand 413 states and 593 transitions. Second operand 6 states. [2018-12-09 01:14:15,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 01:14:15,966 INFO L93 Difference]: Finished difference Result 1116 states and 1631 transitions. [2018-12-09 01:14:15,966 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-09 01:14:15,966 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 165 [2018-12-09 01:14:15,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 01:14:15,969 INFO L225 Difference]: With dead ends: 1116 [2018-12-09 01:14:15,969 INFO L226 Difference]: Without dead ends: 709 [2018-12-09 01:14:15,970 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 01:14:15,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 709 states. [2018-12-09 01:14:15,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 709 to 699. [2018-12-09 01:14:15,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 699 states. [2018-12-09 01:14:15,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 699 states to 699 states and 950 transitions. [2018-12-09 01:14:15,987 INFO L78 Accepts]: Start accepts. Automaton has 699 states and 950 transitions. Word has length 165 [2018-12-09 01:14:15,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 01:14:15,987 INFO L480 AbstractCegarLoop]: Abstraction has 699 states and 950 transitions. [2018-12-09 01:14:15,987 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-09 01:14:15,987 INFO L276 IsEmpty]: Start isEmpty. Operand 699 states and 950 transitions. [2018-12-09 01:14:15,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2018-12-09 01:14:15,989 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 01:14:15,989 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-12-09 01:14:15,990 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 01:14:15,990 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 01:14:15,990 INFO L82 PathProgramCache]: Analyzing trace with hash -159860650, now seen corresponding path program 1 times [2018-12-09 01:14:15,990 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 01:14:15,990 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 01:14:15,991 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 01:14:15,991 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 01:14:15,991 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 01:14:16,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 01:14:16,060 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 57 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 01:14:16,060 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 01:14:16,060 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-09 01:14:16,061 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 177 with the following transitions: [2018-12-09 01:14:16,062 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], [145], [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], [481], [489], [497], [505], [513], [521], [529], [537], [545], [553], [561], [569], [577], [585], [593], [601], [609], [617], [621], [623], [757], [761], [770], [774], [776], [781], [782], [783], [785], [786] [2018-12-09 01:14:16,088 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-09 01:14:16,088 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-09 01:14:16,440 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-12-09 01:14:16,440 INFO L272 AbstractInterpreter]: Visited 126 different actions 245 times. Merged at 3 different actions 3 times. Never widened. Performed 3380 root evaluator evaluations with a maximum evaluation depth of 3. Performed 3380 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 01:14:16,450 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 01:14:16,451 INFO L401 sIntCurrentIteration]: Generating AbsInt predicates [2018-12-09 01:14:16,736 INFO L227 lantSequenceWeakener]: Weakened 173 states. On average, predicates are now at 81.92% of their original sizes. [2018-12-09 01:14:16,737 INFO L416 sIntCurrentIteration]: Unifying AI predicates [2018-12-09 01:14:16,787 INFO L418 sIntCurrentIteration]: We unified 175 AI predicates to 175 [2018-12-09 01:14:16,787 INFO L427 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-12-09 01:14:16,787 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-12-09 01:14:16,788 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [6] total 14 [2018-12-09 01:14:16,788 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 01:14:16,788 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-12-09 01:14:16,788 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-12-09 01:14:16,788 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2018-12-09 01:14:16,789 INFO L87 Difference]: Start difference. First operand 699 states and 950 transitions. Second operand 10 states. [2018-12-09 01:14:20,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 01:14:20,409 INFO L93 Difference]: Finished difference Result 2044 states and 2779 transitions. [2018-12-09 01:14:20,409 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-12-09 01:14:20,409 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 176 [2018-12-09 01:14:20,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 01:14:20,412 INFO L225 Difference]: With dead ends: 2044 [2018-12-09 01:14:20,412 INFO L226 Difference]: Without dead ends: 1351 [2018-12-09 01:14:20,413 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 185 GetRequests, 167 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=99, Invalid=281, Unknown=0, NotChecked=0, Total=380 [2018-12-09 01:14:20,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1351 states. [2018-12-09 01:14:20,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1351 to 836. [2018-12-09 01:14:20,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 836 states. [2018-12-09 01:14:20,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 836 states to 836 states and 1099 transitions. [2018-12-09 01:14:20,430 INFO L78 Accepts]: Start accepts. Automaton has 836 states and 1099 transitions. Word has length 176 [2018-12-09 01:14:20,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 01:14:20,430 INFO L480 AbstractCegarLoop]: Abstraction has 836 states and 1099 transitions. [2018-12-09 01:14:20,430 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-12-09 01:14:20,430 INFO L276 IsEmpty]: Start isEmpty. Operand 836 states and 1099 transitions. [2018-12-09 01:14:20,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2018-12-09 01:14:20,432 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 01:14:20,432 INFO L402 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-12-09 01:14:20,432 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 01:14:20,432 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 01:14:20,432 INFO L82 PathProgramCache]: Analyzing trace with hash 1550832441, now seen corresponding path program 1 times [2018-12-09 01:14:20,432 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 01:14:20,433 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 01:14:20,433 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 01:14:20,433 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 01:14:20,433 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 01:14:20,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 01:14:20,531 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 67 proven. 15 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-12-09 01:14:20,531 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 01:14:20,531 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-09 01:14:20,531 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 189 with the following transitions: [2018-12-09 01:14:20,532 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [5], [6], [10], [14], [18], [22], [26], [30], [33], [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], [145], [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], [481], [489], [497], [505], [513], [521], [529], [537], [545], [553], [561], [569], [577], [585], [593], [601], [609], [617], [621], [623], [757], [761], [770], [774], [776], [781], [782], [783], [785], [786] [2018-12-09 01:14:20,534 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-09 01:14:20,535 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-09 01:14:20,681 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-12-09 01:14:20,681 INFO L272 AbstractInterpreter]: Visited 127 different actions 248 times. Merged at 4 different actions 4 times. Never widened. Performed 3260 root evaluator evaluations with a maximum evaluation depth of 3. Performed 3260 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 01:14:20,683 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 01:14:20,683 INFO L401 sIntCurrentIteration]: Generating AbsInt predicates [2018-12-09 01:14:20,814 INFO L227 lantSequenceWeakener]: Weakened 185 states. On average, predicates are now at 81.88% of their original sizes. [2018-12-09 01:14:20,814 INFO L416 sIntCurrentIteration]: Unifying AI predicates [2018-12-09 01:14:20,848 INFO L418 sIntCurrentIteration]: We unified 187 AI predicates to 187 [2018-12-09 01:14:20,849 INFO L427 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-12-09 01:14:20,849 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-12-09 01:14:20,849 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [6] total 14 [2018-12-09 01:14:20,849 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 01:14:20,849 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-12-09 01:14:20,849 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-12-09 01:14:20,849 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2018-12-09 01:14:20,849 INFO L87 Difference]: Start difference. First operand 836 states and 1099 transitions. Second operand 10 states. [2018-12-09 01:14:23,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 01:14:23,373 INFO L93 Difference]: Finished difference Result 1940 states and 2532 transitions. [2018-12-09 01:14:23,373 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-12-09 01:14:23,373 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 188 [2018-12-09 01:14:23,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 01:14:23,377 INFO L225 Difference]: With dead ends: 1940 [2018-12-09 01:14:23,377 INFO L226 Difference]: Without dead ends: 1110 [2018-12-09 01:14:23,378 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 195 GetRequests, 179 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=84, Invalid=222, Unknown=0, NotChecked=0, Total=306 [2018-12-09 01:14:23,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1110 states. [2018-12-09 01:14:23,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1110 to 1108. [2018-12-09 01:14:23,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1108 states. [2018-12-09 01:14:23,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1108 states to 1108 states and 1395 transitions. [2018-12-09 01:14:23,403 INFO L78 Accepts]: Start accepts. Automaton has 1108 states and 1395 transitions. Word has length 188 [2018-12-09 01:14:23,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 01:14:23,403 INFO L480 AbstractCegarLoop]: Abstraction has 1108 states and 1395 transitions. [2018-12-09 01:14:23,403 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-12-09 01:14:23,403 INFO L276 IsEmpty]: Start isEmpty. Operand 1108 states and 1395 transitions. [2018-12-09 01:14:23,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2018-12-09 01:14:23,405 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 01:14:23,405 INFO L402 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-12-09 01:14:23,405 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 01:14:23,405 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 01:14:23,405 INFO L82 PathProgramCache]: Analyzing trace with hash -618142062, now seen corresponding path program 1 times [2018-12-09 01:14:23,405 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 01:14:23,406 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 01:14:23,406 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 01:14:23,406 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 01:14:23,406 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 01:14:23,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 01:14:23,451 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 79 proven. 14 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2018-12-09 01:14:23,451 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 01:14:23,451 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-09 01:14:23,452 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 200 with the following transitions: [2018-12-09 01:14:23,452 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [5], [6], [10], [14], [17], [18], [22], [26], [30], [33], [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], [145], [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], [481], [489], [497], [505], [513], [521], [529], [537], [545], [553], [561], [569], [577], [585], [593], [601], [609], [617], [621], [623], [757], [761], [770], [774], [776], [781], [782], [783], [785], [786] [2018-12-09 01:14:23,455 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-09 01:14:23,455 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-09 01:14:23,622 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-09 01:14:23,622 INFO L272 AbstractInterpreter]: Visited 129 different actions 380 times. Merged at 6 different actions 15 times. Never widened. Performed 5164 root evaluator evaluations with a maximum evaluation depth of 3. Performed 5164 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 4 fixpoints after 2 different actions. Largest state had 42 variables. [2018-12-09 01:14:23,623 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 01:14:23,624 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-09 01:14:23,624 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 01:14:23,624 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3fb38d4d-acaf-4367-9f70-f49fe0c785e0/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 01:14:23,630 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 01:14:23,630 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-09 01:14:23,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 01:14:23,694 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 01:14:23,748 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 55 proven. 2 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2018-12-09 01:14:23,748 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-09 01:14:23,816 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 79 proven. 14 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2018-12-09 01:14:23,832 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-09 01:14:23,832 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2018-12-09 01:14:23,832 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-09 01:14:23,833 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-12-09 01:14:23,833 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-12-09 01:14:23,833 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2018-12-09 01:14:23,833 INFO L87 Difference]: Start difference. First operand 1108 states and 1395 transitions. Second operand 8 states. [2018-12-09 01:14:25,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 01:14:25,278 INFO L93 Difference]: Finished difference Result 3628 states and 4871 transitions. [2018-12-09 01:14:25,279 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2018-12-09 01:14:25,279 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 199 [2018-12-09 01:14:25,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 01:14:25,286 INFO L225 Difference]: With dead ends: 3628 [2018-12-09 01:14:25,287 INFO L226 Difference]: Without dead ends: 2375 [2018-12-09 01:14:25,290 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 437 GetRequests, 410 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 150 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=181, Invalid=631, Unknown=0, NotChecked=0, Total=812 [2018-12-09 01:14:25,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2375 states. [2018-12-09 01:14:25,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2375 to 1805. [2018-12-09 01:14:25,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1805 states. [2018-12-09 01:14:25,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1805 states to 1805 states and 2060 transitions. [2018-12-09 01:14:25,338 INFO L78 Accepts]: Start accepts. Automaton has 1805 states and 2060 transitions. Word has length 199 [2018-12-09 01:14:25,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 01:14:25,338 INFO L480 AbstractCegarLoop]: Abstraction has 1805 states and 2060 transitions. [2018-12-09 01:14:25,339 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-12-09 01:14:25,339 INFO L276 IsEmpty]: Start isEmpty. Operand 1805 states and 2060 transitions. [2018-12-09 01:14:25,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2018-12-09 01:14:25,343 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 01:14:25,344 INFO L402 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-12-09 01:14:25,344 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 01:14:25,344 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 01:14:25,344 INFO L82 PathProgramCache]: Analyzing trace with hash 589887547, now seen corresponding path program 1 times [2018-12-09 01:14:25,344 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 01:14:25,345 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 01:14:25,345 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 01:14:25,345 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 01:14:25,345 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 01:14:25,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 01:14:25,429 INFO L134 CoverageAnalysis]: Checked inductivity of 161 backedges. 107 proven. 15 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2018-12-09 01:14:25,429 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 01:14:25,429 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-09 01:14:25,430 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 222 with the following transitions: [2018-12-09 01:14:25,430 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [6], [10], [14], [18], [22], [26], [30], [33], [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], [137], [138], [142], [145], [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], [481], [489], [497], [505], [513], [521], [529], [537], [545], [553], [561], [569], [577], [585], [593], [601], [609], [617], [621], [623], [757], [761], [770], [774], [776], [781], [782], [783], [785], [786] [2018-12-09 01:14:25,432 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-09 01:14:25,432 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-09 01:14:25,534 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-12-09 01:14:25,534 INFO L272 AbstractInterpreter]: Visited 127 different actions 248 times. Merged at 4 different actions 4 times. Never widened. Performed 3322 root evaluator evaluations with a maximum evaluation depth of 3. Performed 3322 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 01:14:25,543 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 01:14:25,543 INFO L401 sIntCurrentIteration]: Generating AbsInt predicates [2018-12-09 01:14:25,691 INFO L227 lantSequenceWeakener]: Weakened 218 states. On average, predicates are now at 81.84% of their original sizes. [2018-12-09 01:14:25,691 INFO L416 sIntCurrentIteration]: Unifying AI predicates [2018-12-09 01:14:25,732 INFO L418 sIntCurrentIteration]: We unified 220 AI predicates to 220 [2018-12-09 01:14:25,732 INFO L427 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-12-09 01:14:25,732 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-12-09 01:14:25,733 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [6] total 14 [2018-12-09 01:14:25,733 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 01:14:25,733 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-12-09 01:14:25,733 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-12-09 01:14:25,733 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2018-12-09 01:14:25,733 INFO L87 Difference]: Start difference. First operand 1805 states and 2060 transitions. Second operand 10 states. [2018-12-09 01:14:27,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 01:14:27,154 INFO L93 Difference]: Finished difference Result 3606 states and 4143 transitions. [2018-12-09 01:14:27,154 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-12-09 01:14:27,154 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 221 [2018-12-09 01:14:27,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 01:14:27,159 INFO L225 Difference]: With dead ends: 3606 [2018-12-09 01:14:27,160 INFO L226 Difference]: Without dead ends: 2079 [2018-12-09 01:14:27,162 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 229 GetRequests, 212 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=92, Invalid=250, Unknown=0, NotChecked=0, Total=342 [2018-12-09 01:14:27,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2079 states. [2018-12-09 01:14:27,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2079 to 2077. [2018-12-09 01:14:27,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2077 states. [2018-12-09 01:14:27,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2077 states to 2077 states and 2353 transitions. [2018-12-09 01:14:27,188 INFO L78 Accepts]: Start accepts. Automaton has 2077 states and 2353 transitions. Word has length 221 [2018-12-09 01:14:27,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 01:14:27,188 INFO L480 AbstractCegarLoop]: Abstraction has 2077 states and 2353 transitions. [2018-12-09 01:14:27,188 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-12-09 01:14:27,188 INFO L276 IsEmpty]: Start isEmpty. Operand 2077 states and 2353 transitions. [2018-12-09 01:14:27,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2018-12-09 01:14:27,191 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 01:14:27,191 INFO L402 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-12-09 01:14:27,191 INFO L423 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 01:14:27,191 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 01:14:27,191 INFO L82 PathProgramCache]: Analyzing trace with hash -1294651584, now seen corresponding path program 1 times [2018-12-09 01:14:27,191 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 01:14:27,192 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 01:14:27,192 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 01:14:27,192 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 01:14:27,192 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 01:14:27,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 01:14:27,280 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 104 proven. 61 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2018-12-09 01:14:27,280 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 01:14:27,280 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-09 01:14:27,280 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 230 with the following transitions: [2018-12-09 01:14:27,281 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [5], [6], [10], [14], [18], [22], [26], [30], [33], [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], [137], [138], [142], [145], [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], [481], [489], [497], [505], [513], [521], [529], [537], [545], [553], [561], [569], [577], [585], [593], [601], [609], [617], [621], [623], [757], [761], [770], [774], [776], [781], [782], [783], [785], [786] [2018-12-09 01:14:27,283 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-09 01:14:27,283 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-09 01:14:27,562 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-09 01:14:27,562 INFO L272 AbstractInterpreter]: Visited 129 different actions 515 times. Merged at 8 different actions 32 times. Never widened. Performed 7233 root evaluator evaluations with a maximum evaluation depth of 3. Performed 7233 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 8 fixpoints after 3 different actions. Largest state had 42 variables. [2018-12-09 01:14:27,567 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 01:14:27,567 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-09 01:14:27,567 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 01:14:27,567 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3fb38d4d-acaf-4367-9f70-f49fe0c785e0/bin-2019/utaipan/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-09 01:14:27,573 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 01:14:27,573 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-09 01:14:27,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 01:14:27,626 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 01:14:27,656 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 119 proven. 2 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2018-12-09 01:14:27,656 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-09 01:14:27,715 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 109 proven. 54 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2018-12-09 01:14:27,730 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-09 01:14:27,731 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 5, 5] total 13 [2018-12-09 01:14:27,731 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-09 01:14:27,731 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-12-09 01:14:27,731 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-12-09 01:14:27,732 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2018-12-09 01:14:27,732 INFO L87 Difference]: Start difference. First operand 2077 states and 2353 transitions. Second operand 11 states. [2018-12-09 01:14:28,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 01:14:28,541 INFO L93 Difference]: Finished difference Result 4768 states and 5436 transitions. [2018-12-09 01:14:28,541 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-12-09 01:14:28,542 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 229 [2018-12-09 01:14:28,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 01:14:28,549 INFO L225 Difference]: With dead ends: 4768 [2018-12-09 01:14:28,549 INFO L226 Difference]: Without dead ends: 3104 [2018-12-09 01:14:28,552 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 477 GetRequests, 459 SyntacticMatches, 2 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=91, Invalid=215, Unknown=0, NotChecked=0, Total=306 [2018-12-09 01:14:28,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3104 states. [2018-12-09 01:14:28,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3104 to 3098. [2018-12-09 01:14:28,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3098 states. [2018-12-09 01:14:28,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3098 states to 3098 states and 3471 transitions. [2018-12-09 01:14:28,594 INFO L78 Accepts]: Start accepts. Automaton has 3098 states and 3471 transitions. Word has length 229 [2018-12-09 01:14:28,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 01:14:28,595 INFO L480 AbstractCegarLoop]: Abstraction has 3098 states and 3471 transitions. [2018-12-09 01:14:28,595 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-12-09 01:14:28,595 INFO L276 IsEmpty]: Start isEmpty. Operand 3098 states and 3471 transitions. [2018-12-09 01:14:28,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2018-12-09 01:14:28,599 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 01:14:28,599 INFO L402 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-12-09 01:14:28,599 INFO L423 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 01:14:28,599 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 01:14:28,599 INFO L82 PathProgramCache]: Analyzing trace with hash -114600298, now seen corresponding path program 2 times [2018-12-09 01:14:28,599 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 01:14:28,600 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 01:14:28,600 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 01:14:28,600 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 01:14:28,600 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 01:14:28,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 01:14:28,676 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 104 proven. 63 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2018-12-09 01:14:28,676 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 01:14:28,676 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-09 01:14:28,676 INFO L187 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2018-12-09 01:14:28,676 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-12-09 01:14:28,676 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 01:14:28,676 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3fb38d4d-acaf-4367-9f70-f49fe0c785e0/bin-2019/utaipan/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-09 01:14:28,683 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-12-09 01:14:28,683 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST2 (IT: FPandBP) [2018-12-09 01:14:28,726 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2018-12-09 01:14:28,726 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-12-09 01:14:28,731 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 01:14:28,774 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 104 proven. 0 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2018-12-09 01:14:28,775 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-09 01:14:28,859 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 104 proven. 0 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2018-12-09 01:14:28,874 INFO L312 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-12-09 01:14:28,874 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [9] total 10 [2018-12-09 01:14:28,874 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 01:14:28,874 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-09 01:14:28,874 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-09 01:14:28,875 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2018-12-09 01:14:28,875 INFO L87 Difference]: Start difference. First operand 3098 states and 3471 transitions. Second operand 3 states. [2018-12-09 01:14:29,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 01:14:29,089 INFO L93 Difference]: Finished difference Result 7151 states and 8197 transitions. [2018-12-09 01:14:29,089 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-09 01:14:29,089 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 229 [2018-12-09 01:14:29,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 01:14:29,090 INFO L225 Difference]: With dead ends: 7151 [2018-12-09 01:14:29,090 INFO L226 Difference]: Without dead ends: 0 [2018-12-09 01:14:29,095 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 467 GetRequests, 457 SyntacticMatches, 2 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2018-12-09 01:14:29,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-09 01:14:29,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-09 01:14:29,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-09 01:14:29,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-09 01:14:29,096 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 229 [2018-12-09 01:14:29,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 01:14:29,096 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-09 01:14:29,096 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-09 01:14:29,096 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-09 01:14:29,096 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-09 01:14:29,099 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-12-09 01:14:29,166 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 01:14:29,172 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 01:14:29,178 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 01:14:29,179 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 01:14:29,181 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 01:14:29,184 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 01:14:29,187 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 01:14:29,188 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 01:14:29,188 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 01:14:29,189 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 01:14:29,191 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 01:14:29,191 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 01:14:29,194 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 01:14:29,195 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 01:14:29,199 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 01:14:29,211 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 01:14:29,215 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 01:14:29,217 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 01:14:29,217 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 01:14:29,222 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 01:14:29,223 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 01:14:29,224 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 01:14:29,225 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 01:14:29,226 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 01:14:29,229 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 01:14:29,231 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 01:14:29,237 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 01:14:29,238 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 01:14:29,983 WARN L180 SmtUtils]: Spent 675.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 95 [2018-12-09 01:14:30,109 WARN L180 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 44 [2018-12-09 01:14:30,241 WARN L180 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 44 [2018-12-09 01:14:30,242 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-12-09 01:14:30,243 INFO L444 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~a7~0 |old(~a7~0)|) (= |old(~a8~0)| ~a8~0) (= |old(~a20~0)| ~a20~0)) [2018-12-09 01:14:30,243 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-12-09 01:14:30,243 INFO L448 ceAbstractionStarter]: For program point L333(lines 333 390) no Hoare annotation was computed. [2018-12-09 01:14:30,243 INFO L448 ceAbstractionStarter]: For program point L102(lines 102 390) no Hoare annotation was computed. [2018-12-09 01:14:30,243 INFO L448 ceAbstractionStarter]: For program point L565-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 01:14:30,243 INFO L448 ceAbstractionStarter]: For program point L532-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 01:14:30,243 INFO L448 ceAbstractionStarter]: For program point L499-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 01:14:30,243 INFO L448 ceAbstractionStarter]: For program point L466-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 01:14:30,243 INFO L448 ceAbstractionStarter]: For program point L433-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 01:14:30,243 INFO L448 ceAbstractionStarter]: For program point L400-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 01:14:30,243 INFO L448 ceAbstractionStarter]: For program point L268(lines 268 390) no Hoare annotation was computed. [2018-12-09 01:14:30,243 INFO L448 ceAbstractionStarter]: For program point L136(lines 136 390) no Hoare annotation was computed. [2018-12-09 01:14:30,243 INFO L448 ceAbstractionStarter]: For program point L566(line 566) no Hoare annotation was computed. [2018-12-09 01:14:30,243 INFO L448 ceAbstractionStarter]: For program point L533(line 533) no Hoare annotation was computed. [2018-12-09 01:14:30,243 INFO L448 ceAbstractionStarter]: For program point L500(line 500) no Hoare annotation was computed. [2018-12-09 01:14:30,243 INFO L448 ceAbstractionStarter]: For program point L467(line 467) no Hoare annotation was computed. [2018-12-09 01:14:30,243 INFO L448 ceAbstractionStarter]: For program point L434(line 434) no Hoare annotation was computed. [2018-12-09 01:14:30,243 INFO L448 ceAbstractionStarter]: For program point L401(line 401) no Hoare annotation was computed. [2018-12-09 01:14:30,243 INFO L448 ceAbstractionStarter]: For program point L203(lines 203 390) no Hoare annotation was computed. [2018-12-09 01:14:30,243 INFO L448 ceAbstractionStarter]: For program point L72(lines 72 390) no Hoare annotation was computed. [2018-12-09 01:14:30,244 INFO L448 ceAbstractionStarter]: For program point L568-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 01:14:30,244 INFO L448 ceAbstractionStarter]: For program point L535-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 01:14:30,244 INFO L448 ceAbstractionStarter]: For program point L502-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 01:14:30,244 INFO L448 ceAbstractionStarter]: For program point L469-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 01:14:30,244 INFO L448 ceAbstractionStarter]: For program point L436-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 01:14:30,244 INFO L448 ceAbstractionStarter]: For program point L403-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 01:14:30,244 INFO L448 ceAbstractionStarter]: For program point L337(lines 337 390) no Hoare annotation was computed. [2018-12-09 01:14:30,244 INFO L448 ceAbstractionStarter]: For program point L238(lines 238 390) no Hoare annotation was computed. [2018-12-09 01:14:30,244 INFO L448 ceAbstractionStarter]: For program point L569(line 569) no Hoare annotation was computed. [2018-12-09 01:14:30,244 INFO L448 ceAbstractionStarter]: For program point L536(line 536) no Hoare annotation was computed. [2018-12-09 01:14:30,244 INFO L448 ceAbstractionStarter]: For program point L503(line 503) no Hoare annotation was computed. [2018-12-09 01:14:30,244 INFO L448 ceAbstractionStarter]: For program point L470(line 470) no Hoare annotation was computed. [2018-12-09 01:14:30,244 INFO L448 ceAbstractionStarter]: For program point L437(line 437) no Hoare annotation was computed. [2018-12-09 01:14:30,244 INFO L448 ceAbstractionStarter]: For program point L404(line 404) no Hoare annotation was computed. [2018-12-09 01:14:30,244 INFO L448 ceAbstractionStarter]: For program point L173(lines 173 390) no Hoare annotation was computed. [2018-12-09 01:14:30,244 INFO L448 ceAbstractionStarter]: For program point L140(lines 140 390) no Hoare annotation was computed. [2018-12-09 01:14:30,244 INFO L448 ceAbstractionStarter]: For program point L372(lines 372 390) no Hoare annotation was computed. [2018-12-09 01:14:30,244 INFO L448 ceAbstractionStarter]: For program point L306(lines 306 390) no Hoare annotation was computed. [2018-12-09 01:14:30,244 INFO L448 ceAbstractionStarter]: For program point L273(lines 273 390) no Hoare annotation was computed. [2018-12-09 01:14:30,244 INFO L448 ceAbstractionStarter]: For program point L108(lines 108 390) no Hoare annotation was computed. [2018-12-09 01:14:30,244 INFO L448 ceAbstractionStarter]: For program point L571-1(lines 571 573) no Hoare annotation was computed. [2018-12-09 01:14:30,244 INFO L448 ceAbstractionStarter]: For program point L538-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 01:14:30,244 INFO L448 ceAbstractionStarter]: For program point L505-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 01:14:30,244 INFO L448 ceAbstractionStarter]: For program point L472-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 01:14:30,245 INFO L448 ceAbstractionStarter]: For program point L439-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 01:14:30,245 INFO L448 ceAbstractionStarter]: For program point L406-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 01:14:30,245 INFO L448 ceAbstractionStarter]: For program point L208(lines 208 390) no Hoare annotation was computed. [2018-12-09 01:14:30,245 INFO L448 ceAbstractionStarter]: For program point L43(lines 43 390) no Hoare annotation was computed. [2018-12-09 01:14:30,245 INFO L448 ceAbstractionStarter]: For program point L572(line 572) no Hoare annotation was computed. [2018-12-09 01:14:30,245 INFO L448 ceAbstractionStarter]: For program point L539(line 539) no Hoare annotation was computed. [2018-12-09 01:14:30,245 INFO L448 ceAbstractionStarter]: For program point L506(line 506) no Hoare annotation was computed. [2018-12-09 01:14:30,245 INFO L448 ceAbstractionStarter]: For program point L473(line 473) no Hoare annotation was computed. [2018-12-09 01:14:30,245 INFO L448 ceAbstractionStarter]: For program point L440(line 440) no Hoare annotation was computed. [2018-12-09 01:14:30,245 INFO L448 ceAbstractionStarter]: For program point L407(line 407) no Hoare annotation was computed. [2018-12-09 01:14:30,245 INFO L448 ceAbstractionStarter]: For program point L144(lines 144 390) no Hoare annotation was computed. [2018-12-09 01:14:30,245 INFO L448 ceAbstractionStarter]: For program point L541-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 01:14:30,245 INFO L448 ceAbstractionStarter]: For program point L508-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 01:14:30,245 INFO L448 ceAbstractionStarter]: For program point L475-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 01:14:30,245 INFO L448 ceAbstractionStarter]: For program point L442-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 01:14:30,245 INFO L448 ceAbstractionStarter]: For program point L409-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 01:14:30,245 INFO L448 ceAbstractionStarter]: For program point L178(lines 178 390) no Hoare annotation was computed. [2018-12-09 01:14:30,245 INFO L448 ceAbstractionStarter]: For program point L542(line 542) no Hoare annotation was computed. [2018-12-09 01:14:30,245 INFO L448 ceAbstractionStarter]: For program point L509(line 509) no Hoare annotation was computed. [2018-12-09 01:14:30,245 INFO L448 ceAbstractionStarter]: For program point L476(line 476) no Hoare annotation was computed. [2018-12-09 01:14:30,245 INFO L448 ceAbstractionStarter]: For program point L443(line 443) no Hoare annotation was computed. [2018-12-09 01:14:30,245 INFO L448 ceAbstractionStarter]: For program point L410(line 410) no Hoare annotation was computed. [2018-12-09 01:14:30,245 INFO L448 ceAbstractionStarter]: For program point L377(lines 377 390) no Hoare annotation was computed. [2018-12-09 01:14:30,245 INFO L448 ceAbstractionStarter]: For program point L278(lines 278 390) no Hoare annotation was computed. [2018-12-09 01:14:30,246 INFO L448 ceAbstractionStarter]: For program point L245(lines 245 390) no Hoare annotation was computed. [2018-12-09 01:14:30,246 INFO L448 ceAbstractionStarter]: For program point L80(lines 80 390) no Hoare annotation was computed. [2018-12-09 01:14:30,246 INFO L448 ceAbstractionStarter]: For program point L345(lines 345 390) no Hoare annotation was computed. [2018-12-09 01:14:30,246 INFO L448 ceAbstractionStarter]: For program point L312(lines 312 390) no Hoare annotation was computed. [2018-12-09 01:14:30,246 INFO L448 ceAbstractionStarter]: For program point L114(lines 114 390) no Hoare annotation was computed. [2018-12-09 01:14:30,246 INFO L448 ceAbstractionStarter]: For program point L544-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 01:14:30,246 INFO L448 ceAbstractionStarter]: For program point L511-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 01:14:30,246 INFO L448 ceAbstractionStarter]: For program point L478-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 01:14:30,246 INFO L448 ceAbstractionStarter]: For program point L445-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 01:14:30,246 INFO L448 ceAbstractionStarter]: For program point L412-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 01:14:30,246 INFO L448 ceAbstractionStarter]: For program point L214(lines 214 390) no Hoare annotation was computed. [2018-12-09 01:14:30,246 INFO L448 ceAbstractionStarter]: For program point L148(lines 148 390) no Hoare annotation was computed. [2018-12-09 01:14:30,246 INFO L448 ceAbstractionStarter]: For program point L49(lines 49 390) no Hoare annotation was computed. [2018-12-09 01:14:30,246 INFO L448 ceAbstractionStarter]: For program point L545(line 545) no Hoare annotation was computed. [2018-12-09 01:14:30,246 INFO L448 ceAbstractionStarter]: For program point L512(line 512) no Hoare annotation was computed. [2018-12-09 01:14:30,246 INFO L448 ceAbstractionStarter]: For program point L479(line 479) no Hoare annotation was computed. [2018-12-09 01:14:30,246 INFO L448 ceAbstractionStarter]: For program point L446(line 446) no Hoare annotation was computed. [2018-12-09 01:14:30,246 INFO L448 ceAbstractionStarter]: For program point L413(line 413) no Hoare annotation was computed. [2018-12-09 01:14:30,246 INFO L448 ceAbstractionStarter]: For program point L84(lines 84 390) no Hoare annotation was computed. [2018-12-09 01:14:30,246 INFO L448 ceAbstractionStarter]: For program point calculate_outputFINAL(lines 30 575) no Hoare annotation was computed. [2018-12-09 01:14:30,246 INFO L448 ceAbstractionStarter]: For program point calculate_outputEXIT(lines 30 575) no Hoare annotation was computed. [2018-12-09 01:14:30,246 INFO L448 ceAbstractionStarter]: For program point L547-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 01:14:30,246 INFO L448 ceAbstractionStarter]: For program point L514-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 01:14:30,246 INFO L448 ceAbstractionStarter]: For program point L481-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 01:14:30,247 INFO L448 ceAbstractionStarter]: For program point L448-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 01:14:30,247 INFO L448 ceAbstractionStarter]: For program point L382(lines 382 390) no Hoare annotation was computed. [2018-12-09 01:14:30,247 INFO L448 ceAbstractionStarter]: For program point L415-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 01:14:30,247 INFO L448 ceAbstractionStarter]: For program point L316(lines 316 390) no Hoare annotation was computed. [2018-12-09 01:14:30,247 INFO L448 ceAbstractionStarter]: For program point L250(lines 250 390) no Hoare annotation was computed. [2018-12-09 01:14:30,247 INFO L448 ceAbstractionStarter]: For program point L548(line 548) no Hoare annotation was computed. [2018-12-09 01:14:30,247 INFO L448 ceAbstractionStarter]: For program point L515(line 515) no Hoare annotation was computed. [2018-12-09 01:14:30,247 INFO L448 ceAbstractionStarter]: For program point L482(line 482) no Hoare annotation was computed. [2018-12-09 01:14:30,247 INFO L448 ceAbstractionStarter]: For program point L449(line 449) no Hoare annotation was computed. [2018-12-09 01:14:30,247 INFO L448 ceAbstractionStarter]: For program point L416(line 416) no Hoare annotation was computed. [2018-12-09 01:14:30,247 INFO L448 ceAbstractionStarter]: For program point L218(lines 218 390) no Hoare annotation was computed. [2018-12-09 01:14:30,247 INFO L448 ceAbstractionStarter]: For program point L152(lines 152 390) no Hoare annotation was computed. [2018-12-09 01:14:30,247 INFO L448 ceAbstractionStarter]: For program point L119(lines 119 390) no Hoare annotation was computed. [2018-12-09 01:14:30,247 INFO L448 ceAbstractionStarter]: For program point L318(lines 318 390) no Hoare annotation was computed. [2018-12-09 01:14:30,247 INFO L448 ceAbstractionStarter]: For program point L186(lines 186 390) no Hoare annotation was computed. [2018-12-09 01:14:30,247 INFO L448 ceAbstractionStarter]: For program point L54(lines 54 390) no Hoare annotation was computed. [2018-12-09 01:14:30,247 INFO L448 ceAbstractionStarter]: For program point L550-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 01:14:30,247 INFO L448 ceAbstractionStarter]: For program point L517-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 01:14:30,247 INFO L448 ceAbstractionStarter]: For program point L484-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 01:14:30,247 INFO L448 ceAbstractionStarter]: For program point L451-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 01:14:30,247 INFO L448 ceAbstractionStarter]: For program point L418-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 01:14:30,247 INFO L448 ceAbstractionStarter]: For program point L286(lines 286 390) no Hoare annotation was computed. [2018-12-09 01:14:30,247 INFO L448 ceAbstractionStarter]: For program point L551(line 551) no Hoare annotation was computed. [2018-12-09 01:14:30,247 INFO L448 ceAbstractionStarter]: For program point L518(line 518) no Hoare annotation was computed. [2018-12-09 01:14:30,247 INFO L448 ceAbstractionStarter]: For program point L485(line 485) no Hoare annotation was computed. [2018-12-09 01:14:30,247 INFO L448 ceAbstractionStarter]: For program point L452(line 452) no Hoare annotation was computed. [2018-12-09 01:14:30,248 INFO L448 ceAbstractionStarter]: For program point L419(line 419) no Hoare annotation was computed. [2018-12-09 01:14:30,248 INFO L448 ceAbstractionStarter]: For program point L353(lines 353 390) no Hoare annotation was computed. [2018-12-09 01:14:30,248 INFO L448 ceAbstractionStarter]: For program point L189(lines 189 390) no Hoare annotation was computed. [2018-12-09 01:14:30,248 INFO L448 ceAbstractionStarter]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 524) no Hoare annotation was computed. [2018-12-09 01:14:30,248 INFO L448 ceAbstractionStarter]: For program point L553-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 01:14:30,248 INFO L448 ceAbstractionStarter]: For program point L520-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 01:14:30,248 INFO L448 ceAbstractionStarter]: For program point L487-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 01:14:30,248 INFO L448 ceAbstractionStarter]: For program point L454-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 01:14:30,248 INFO L448 ceAbstractionStarter]: For program point L421-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 01:14:30,248 INFO L448 ceAbstractionStarter]: For program point L355(lines 355 390) no Hoare annotation was computed. [2018-12-09 01:14:30,248 INFO L448 ceAbstractionStarter]: For program point L256(lines 256 390) no Hoare annotation was computed. [2018-12-09 01:14:30,248 INFO L448 ceAbstractionStarter]: For program point L223(lines 223 390) no Hoare annotation was computed. [2018-12-09 01:14:30,248 INFO L448 ceAbstractionStarter]: For program point L124(lines 124 390) no Hoare annotation was computed. [2018-12-09 01:14:30,248 INFO L448 ceAbstractionStarter]: For program point L554(line 554) no Hoare annotation was computed. [2018-12-09 01:14:30,248 INFO L448 ceAbstractionStarter]: For program point L521(line 521) no Hoare annotation was computed. [2018-12-09 01:14:30,248 INFO L448 ceAbstractionStarter]: For program point L488(line 488) no Hoare annotation was computed. [2018-12-09 01:14:30,248 INFO L448 ceAbstractionStarter]: For program point L455(line 455) no Hoare annotation was computed. [2018-12-09 01:14:30,248 INFO L448 ceAbstractionStarter]: For program point L422(line 422) no Hoare annotation was computed. [2018-12-09 01:14:30,248 INFO L448 ceAbstractionStarter]: For program point L92(lines 92 390) no Hoare annotation was computed. [2018-12-09 01:14:30,249 INFO L444 ceAbstractionStarter]: At program point calculate_outputENTRY(lines 30 575) the Hoare annotation is: (let ((.cse16 (= ~a7~0 |old(~a7~0)|)) (.cse17 (= |old(~a8~0)| ~a8~0)) (.cse18 (= |old(~a20~0)| ~a20~0)) (.cse8 (not (= 1 |old(~a21~0)|))) (.cse13 (not (= 1 |old(~a20~0)|))) (.cse14 (= 0 |old(~a16~0)|)) (.cse9 (not (= 8 ~a12~0))) (.cse7 (= |calculate_output_#in~input| 0)) (.cse10 (not (= 1 |old(~a17~0)|)))) (let ((.cse4 (= ~a16~0 5)) (.cse3 (not (= 5 |old(~a16~0)|))) (.cse11 (not (= ~a16~0 0))) (.cse5 (= ~a17~0 1)) (.cse6 (= ~a21~0 1)) (.cse2 (or .cse8 .cse13 .cse14 .cse9 .cse7 (= 0 |old(~a8~0)|) .cse10)) (.cse0 (not (= 0 |old(~a7~0)|))) (.cse1 (not (= 15 |old(~a8~0)|))) (.cse19 (<= ~a17~0 0)) (.cse12 (< 0 |old(~a17~0)|)) (.cse15 (and .cse16 .cse17 .cse18)) (.cse20 (< 0 |old(~a20~0)|)) (.cse21 (< 13 |old(~a8~0)|))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or (and .cse5 .cse6 .cse4) .cse7 (or .cse0 .cse8 .cse1 (not (= 0 |old(~a20~0)|)) .cse3 .cse9 .cse10)) (or .cse0 .cse8 (and .cse11 .cse6) .cse9 .cse12 .cse7 .cse13 .cse1 .cse14) (or .cse15 .cse13) (or (and .cse16 .cse17 .cse18 .cse19) .cse12 .cse20) (or (and .cse11 .cse5 .cse6) .cse2) (or .cse13 .cse12 .cse19) (or (and (= ~a17~0 0) (= ~a16~0 6)) .cse7 (or (not (= 6 |old(~a16~0)|)) .cse0 .cse8 .cse13 .cse1 (not (= 0 |old(~a17~0)|)) .cse9)) (or .cse21 .cse19 .cse12) (or (and (and (= 1 ~a7~0) .cse17) .cse18 .cse19) (or (= 14 |old(~a8~0)|) (not (= 1 |old(~a7~0)|))) .cse12) (or .cse15 (< |old(~a8~0)| 15) .cse20) (or .cse21 (and .cse18 (and .cse16 .cse17)))))) [2018-12-09 01:14:30,249 INFO L448 ceAbstractionStarter]: For program point L324(lines 324 390) no Hoare annotation was computed. [2018-12-09 01:14:30,249 INFO L448 ceAbstractionStarter]: For program point L556-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 01:14:30,249 INFO L448 ceAbstractionStarter]: For program point L523-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 01:14:30,249 INFO L448 ceAbstractionStarter]: For program point L490-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 01:14:30,249 INFO L448 ceAbstractionStarter]: For program point L457-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 01:14:30,249 INFO L448 ceAbstractionStarter]: For program point L391(lines 391 393) no Hoare annotation was computed. [2018-12-09 01:14:30,249 INFO L448 ceAbstractionStarter]: For program point L424-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 01:14:30,249 INFO L448 ceAbstractionStarter]: For program point L391-2(lines 30 575) no Hoare annotation was computed. [2018-12-09 01:14:30,249 INFO L448 ceAbstractionStarter]: For program point L292(lines 292 390) no Hoare annotation was computed. [2018-12-09 01:14:30,249 INFO L448 ceAbstractionStarter]: For program point L160(lines 160 390) no Hoare annotation was computed. [2018-12-09 01:14:30,249 INFO L448 ceAbstractionStarter]: For program point L557(line 557) no Hoare annotation was computed. [2018-12-09 01:14:30,249 INFO L448 ceAbstractionStarter]: For program point L524(line 524) no Hoare annotation was computed. [2018-12-09 01:14:30,249 INFO L448 ceAbstractionStarter]: For program point L491(line 491) no Hoare annotation was computed. [2018-12-09 01:14:30,249 INFO L448 ceAbstractionStarter]: For program point L458(line 458) no Hoare annotation was computed. [2018-12-09 01:14:30,249 INFO L448 ceAbstractionStarter]: For program point L425(line 425) no Hoare annotation was computed. [2018-12-09 01:14:30,249 INFO L448 ceAbstractionStarter]: For program point L392(line 392) no Hoare annotation was computed. [2018-12-09 01:14:30,249 INFO L448 ceAbstractionStarter]: For program point L194(lines 194 390) no Hoare annotation was computed. [2018-12-09 01:14:30,249 INFO L448 ceAbstractionStarter]: For program point L62(lines 62 390) no Hoare annotation was computed. [2018-12-09 01:14:30,249 INFO L448 ceAbstractionStarter]: For program point L261(lines 261 390) no Hoare annotation was computed. [2018-12-09 01:14:30,249 INFO L448 ceAbstractionStarter]: For program point L129(lines 129 390) no Hoare annotation was computed. [2018-12-09 01:14:30,249 INFO L448 ceAbstractionStarter]: For program point L559-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 01:14:30,249 INFO L448 ceAbstractionStarter]: For program point L526-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 01:14:30,249 INFO L448 ceAbstractionStarter]: For program point L493-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 01:14:30,249 INFO L448 ceAbstractionStarter]: For program point L460-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 01:14:30,250 INFO L448 ceAbstractionStarter]: For program point L427-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 01:14:30,250 INFO L448 ceAbstractionStarter]: For program point L361(lines 361 390) no Hoare annotation was computed. [2018-12-09 01:14:30,250 INFO L448 ceAbstractionStarter]: For program point L394-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 01:14:30,250 INFO L448 ceAbstractionStarter]: For program point L97(lines 97 390) no Hoare annotation was computed. [2018-12-09 01:14:30,250 INFO L448 ceAbstractionStarter]: For program point L31(lines 31 390) no Hoare annotation was computed. [2018-12-09 01:14:30,250 INFO L448 ceAbstractionStarter]: For program point L560(line 560) no Hoare annotation was computed. [2018-12-09 01:14:30,250 INFO L448 ceAbstractionStarter]: For program point L527(line 527) no Hoare annotation was computed. [2018-12-09 01:14:30,250 INFO L448 ceAbstractionStarter]: For program point L494(line 494) no Hoare annotation was computed. [2018-12-09 01:14:30,250 INFO L448 ceAbstractionStarter]: For program point L461(line 461) no Hoare annotation was computed. [2018-12-09 01:14:30,250 INFO L448 ceAbstractionStarter]: For program point L428(line 428) no Hoare annotation was computed. [2018-12-09 01:14:30,250 INFO L448 ceAbstractionStarter]: For program point L395(line 395) no Hoare annotation was computed. [2018-12-09 01:14:30,250 INFO L448 ceAbstractionStarter]: For program point L329(lines 329 390) no Hoare annotation was computed. [2018-12-09 01:14:30,250 INFO L448 ceAbstractionStarter]: For program point L197(lines 197 390) no Hoare annotation was computed. [2018-12-09 01:14:30,250 INFO L448 ceAbstractionStarter]: For program point L65(lines 65 390) no Hoare annotation was computed. [2018-12-09 01:14:30,250 INFO L448 ceAbstractionStarter]: For program point L363(lines 363 390) no Hoare annotation was computed. [2018-12-09 01:14:30,250 INFO L448 ceAbstractionStarter]: For program point L231(lines 231 390) no Hoare annotation was computed. [2018-12-09 01:14:30,250 INFO L448 ceAbstractionStarter]: For program point L165(lines 165 390) no Hoare annotation was computed. [2018-12-09 01:14:30,250 INFO L448 ceAbstractionStarter]: For program point L562-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 01:14:30,250 INFO L448 ceAbstractionStarter]: For program point L529-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 01:14:30,250 INFO L448 ceAbstractionStarter]: For program point L496-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 01:14:30,250 INFO L448 ceAbstractionStarter]: For program point L463-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 01:14:30,251 INFO L448 ceAbstractionStarter]: For program point L430-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 01:14:30,251 INFO L448 ceAbstractionStarter]: For program point L397-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 01:14:30,251 INFO L448 ceAbstractionStarter]: For program point L265(lines 265 390) no Hoare annotation was computed. [2018-12-09 01:14:30,251 INFO L448 ceAbstractionStarter]: For program point L563(line 563) no Hoare annotation was computed. [2018-12-09 01:14:30,251 INFO L448 ceAbstractionStarter]: For program point L530(line 530) no Hoare annotation was computed. [2018-12-09 01:14:30,251 INFO L448 ceAbstractionStarter]: For program point L497(line 497) no Hoare annotation was computed. [2018-12-09 01:14:30,251 INFO L448 ceAbstractionStarter]: For program point L464(line 464) no Hoare annotation was computed. [2018-12-09 01:14:30,251 INFO L448 ceAbstractionStarter]: For program point L431(line 431) no Hoare annotation was computed. [2018-12-09 01:14:30,251 INFO L448 ceAbstractionStarter]: For program point L398(line 398) no Hoare annotation was computed. [2018-12-09 01:14:30,251 INFO L448 ceAbstractionStarter]: For program point L365(lines 365 390) no Hoare annotation was computed. [2018-12-09 01:14:30,251 INFO L448 ceAbstractionStarter]: For program point L299(lines 299 390) no Hoare annotation was computed. [2018-12-09 01:14:30,251 INFO L448 ceAbstractionStarter]: For program point L35(lines 35 390) no Hoare annotation was computed. [2018-12-09 01:14:30,251 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-12-09 01:14:30,251 INFO L444 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (and (= ~a7~0 0) (= ~a8~0 15) (= ~a17~0 1) (= ~a12~0 8) (= ~a21~0 1) (= ~a20~0 1) (= ~a16~0 5)) [2018-12-09 01:14:30,252 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-12-09 01:14:30,252 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-12-09 01:14:30,252 INFO L444 ceAbstractionStarter]: At program point mainENTRY(lines 577 594) the Hoare annotation is: (or (not (= 0 |old(~a7~0)|)) (not (= 1 |old(~a21~0)|)) (not (= 1 |old(~a20~0)|)) (not (= 15 |old(~a8~0)|)) (not (= 5 |old(~a16~0)|)) (not (= 8 ~a12~0)) (and (= ~a17~0 1) (= ~a21~0 1) (= ~a7~0 |old(~a7~0)|) (= |old(~a8~0)| ~a8~0) (= ~a20~0 1) (= ~a16~0 5)) (not (= 1 |old(~a17~0)|))) [2018-12-09 01:14:30,252 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 577 594) no Hoare annotation was computed. [2018-12-09 01:14:30,252 INFO L444 ceAbstractionStarter]: At program point L591(line 591) the Hoare annotation is: (let ((.cse0 (<= ~a17~0 0)) (.cse2 (not (= ~a8~0 14))) (.cse1 (<= ~a20~0 0))) (or (not (= 1 |old(~a21~0)|)) (and .cse0 .cse1) (not (= 8 ~a12~0)) (and (and (= 1 ~a7~0) .cse2) .cse0) (not (= 1 |old(~a20~0)|)) (and .cse2 .cse1) (not (= 5 |old(~a16~0)|)) (not (= 0 |old(~a7~0)|)) (<= ~a8~0 13) (not (= 1 |old(~a17~0)|)) (not (= 15 |old(~a8~0)|)) (= 1 ~a20~0))) [2018-12-09 01:14:30,252 INFO L448 ceAbstractionStarter]: For program point L591-1(line 591) no Hoare annotation was computed. [2018-12-09 01:14:30,252 INFO L448 ceAbstractionStarter]: For program point L588(line 588) no Hoare annotation was computed. [2018-12-09 01:14:30,252 INFO L444 ceAbstractionStarter]: At program point L583-2(lines 583 593) the Hoare annotation is: (let ((.cse0 (<= ~a17~0 0)) (.cse2 (not (= ~a8~0 14))) (.cse1 (<= ~a20~0 0))) (or (not (= 1 |old(~a21~0)|)) (and .cse0 .cse1) (not (= 8 ~a12~0)) (and (and (= 1 ~a7~0) .cse2) .cse0) (not (= 1 |old(~a20~0)|)) (and .cse2 .cse1) (not (= 5 |old(~a16~0)|)) (not (= 0 |old(~a7~0)|)) (<= ~a8~0 13) (not (= 1 |old(~a17~0)|)) (not (= 15 |old(~a8~0)|)) (= 1 ~a20~0))) [2018-12-09 01:14:30,252 INFO L448 ceAbstractionStarter]: For program point L583-3(lines 577 594) no Hoare annotation was computed. [2018-12-09 01:14:30,261 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 01:14:30 BoogieIcfgContainer [2018-12-09 01:14:30,261 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-09 01:14:30,261 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-09 01:14:30,261 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-09 01:14:30,261 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-09 01:14:30,262 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 01:14:14" (3/4) ... [2018-12-09 01:14:30,264 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-09 01:14:30,267 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-12-09 01:14:30,267 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure calculate_output [2018-12-09 01:14:30,268 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-12-09 01:14:30,276 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2018-12-09 01:14:30,276 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-12-09 01:14:30,294 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((((!(1 == \old(a21)) || (a17 <= 0 && a20 <= 0)) || !(8 == a12)) || ((1 == a7 && !(a8 == 14)) && a17 <= 0)) || !(1 == \old(a20))) || (!(a8 == 14) && a20 <= 0)) || !(5 == \old(a16))) || !(0 == \old(a7))) || a8 <= 13) || !(1 == \old(a17))) || !(15 == \old(a8))) || 1 == a20 [2018-12-09 01:14:30,347 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_3fb38d4d-acaf-4367-9f70-f49fe0c785e0/bin-2019/utaipan/witness.graphml [2018-12-09 01:14:30,347 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-09 01:14:30,348 INFO L168 Benchmark]: Toolchain (without parser) took 16962.49 ms. Allocated memory was 1.0 GB in the beginning and 1.9 GB in the end (delta: 889.2 MB). Free memory was 941.6 MB in the beginning and 1.3 GB in the end (delta: -324.1 MB). Peak memory consumption was 565.1 MB. Max. memory is 11.5 GB. [2018-12-09 01:14:30,348 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 973.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 01:14:30,348 INFO L168 Benchmark]: CACSL2BoogieTranslator took 323.74 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 122.2 MB). Free memory was 941.6 MB in the beginning and 1.1 GB in the end (delta: -168.7 MB). Peak memory consumption was 32.9 MB. Max. memory is 11.5 GB. [2018-12-09 01:14:30,349 INFO L168 Benchmark]: Boogie Procedure Inliner took 17.73 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-12-09 01:14:30,349 INFO L168 Benchmark]: Boogie Preprocessor took 34.19 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-12-09 01:14:30,349 INFO L168 Benchmark]: RCFGBuilder took 564.95 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: 98.5 MB). Peak memory consumption was 98.5 MB. Max. memory is 11.5 GB. [2018-12-09 01:14:30,349 INFO L168 Benchmark]: TraceAbstraction took 15932.86 ms. Allocated memory was 1.2 GB in the beginning and 1.9 GB in the end (delta: 767.0 MB). Free memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: -284.0 MB). Peak memory consumption was 483.0 MB. Max. memory is 11.5 GB. [2018-12-09 01:14:30,349 INFO L168 Benchmark]: Witness Printer took 86.08 ms. Allocated memory is still 1.9 GB. Free memory was 1.3 GB in the beginning and 1.3 GB in the end (delta: 19.4 MB). Peak memory consumption was 19.4 MB. Max. memory is 11.5 GB. [2018-12-09 01:14:30,350 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 973.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 323.74 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 122.2 MB). Free memory was 941.6 MB in the beginning and 1.1 GB in the end (delta: -168.7 MB). Peak memory consumption was 32.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 17.73 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 34.19 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 564.95 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: 98.5 MB). Peak memory consumption was 98.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 15932.86 ms. Allocated memory was 1.2 GB in the beginning and 1.9 GB in the end (delta: 767.0 MB). Free memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: -284.0 MB). Peak memory consumption was 483.0 MB. Max. memory is 11.5 GB. * Witness Printer took 86.08 ms. Allocated memory is still 1.9 GB. Free memory was 1.3 GB in the beginning and 1.3 GB in the end (delta: 19.4 MB). Peak memory consumption was 19.4 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 524]: 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: ((((((((((!(1 == \old(a21)) || (a17 <= 0 && a20 <= 0)) || !(8 == a12)) || ((1 == a7 && !(a8 == 14)) && a17 <= 0)) || !(1 == \old(a20))) || (!(a8 == 14) && a20 <= 0)) || !(5 == \old(a16))) || !(0 == \old(a7))) || a8 <= 13) || !(1 == \old(a17))) || !(15 == \old(a8))) || 1 == a20 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 207 locations, 1 error locations. SAFE Result, 15.8s OverallTime, 9 OverallIterations, 5 TraceHistogramMax, 11.1s AutomataDifference, 0.0s DeadEndRemovalTime, 1.1s HoareAnnotationTime, HoareTripleCheckerStatistics: 566 SDtfs, 5854 SDslu, 503 SDs, 0 SdLazy, 8169 SolverSat, 1320 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5.5s Time, PredicateUnifierStatistics: 6 DeclaredPredicates, 2009 GetRequests, 1891 SyntacticMatches, 7 SemanticMatches, 111 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 348 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3098occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 1.1s AbstIntTime, 5 AbstIntIterations, 3 AbstIntStrong, 0.9973557659539897 AbsIntWeakeningRatio, 0.20103092783505155 AbsIntAvgWeakeningVarsNumRemoved, 29.50171821305842 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 9 MinimizatonAttempts, 1240 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 114 PreInvPairs, 190 NumberOfFragments, 531 HoareAnnotationTreeSize, 114 FomulaSimplifications, 12283 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 7 FomulaSimplificationsInter, 5031 FormulaSimplificationTreeSizeReductionInter, 0.9s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 2325 NumberOfCodeBlocks, 2261 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 2967 ConstructedInterpolants, 0 QuantifiedInterpolants, 1159139 SizeOfPredicates, 4 NumberOfNonLiveVariables, 1631 ConjunctsInSsa, 12 ConjunctsInUnsatCore, 15 InterpolantComputations, 5 PerfectInterpolantSequences, 1638/1880 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...