./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem02_label40_true-unreach-call_false-termination.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aa418289 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_b7eeaadf-b7d3-4b8e-bd6c-f8a1e5fedcd7/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_b7eeaadf-b7d3-4b8e-bd6c-f8a1e5fedcd7/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_b7eeaadf-b7d3-4b8e-bd6c-f8a1e5fedcd7/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_b7eeaadf-b7d3-4b8e-bd6c-f8a1e5fedcd7/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem02_label40_true-unreach-call_false-termination.c -s /tmp/vcloud-vcloud-master/worker/working_dir_b7eeaadf-b7d3-4b8e-bd6c-f8a1e5fedcd7/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_b7eeaadf-b7d3-4b8e-bd6c-f8a1e5fedcd7/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 cf5fe32b34f3bdb04ccea0560b6f352942ab84d1 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-aa41828 [2018-11-23 05:19:38,999 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 05:19:39,000 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 05:19:39,007 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 05:19:39,007 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 05:19:39,007 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 05:19:39,008 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 05:19:39,009 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 05:19:39,010 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 05:19:39,011 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 05:19:39,011 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 05:19:39,012 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 05:19:39,012 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 05:19:39,013 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 05:19:39,014 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 05:19:39,014 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 05:19:39,015 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 05:19:39,016 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 05:19:39,017 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 05:19:39,018 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 05:19:39,019 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 05:19:39,020 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 05:19:39,021 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 05:19:39,021 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 05:19:39,022 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 05:19:39,022 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 05:19:39,023 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 05:19:39,023 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 05:19:39,024 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 05:19:39,025 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 05:19:39,025 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 05:19:39,025 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 05:19:39,026 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 05:19:39,026 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 05:19:39,026 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 05:19:39,027 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 05:19:39,027 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_b7eeaadf-b7d3-4b8e-bd6c-f8a1e5fedcd7/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-23 05:19:39,037 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 05:19:39,037 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 05:19:39,038 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-23 05:19:39,038 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-23 05:19:39,038 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-23 05:19:39,038 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-23 05:19:39,038 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-23 05:19:39,038 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-23 05:19:39,039 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-23 05:19:39,039 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-23 05:19:39,039 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-23 05:19:39,039 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-23 05:19:39,039 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-23 05:19:39,039 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 05:19:39,039 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-23 05:19:39,040 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-23 05:19:39,040 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-23 05:19:39,040 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 05:19:39,040 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-23 05:19:39,040 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-23 05:19:39,040 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-23 05:19:39,040 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-23 05:19:39,040 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 05:19:39,041 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 05:19:39,041 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-23 05:19:39,041 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 05:19:39,041 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-23 05:19:39,041 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-23 05:19:39,041 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-23 05:19:39,041 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 05:19:39,041 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 05:19:39,041 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-23 05:19:39,042 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-23 05:19:39,042 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-23 05:19:39,042 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-23 05:19:39,042 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-23 05:19:39,042 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-23 05:19:39,042 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_b7eeaadf-b7d3-4b8e-bd6c-f8a1e5fedcd7/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 -> cf5fe32b34f3bdb04ccea0560b6f352942ab84d1 [2018-11-23 05:19:39,063 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 05:19:39,071 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 05:19:39,073 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 05:19:39,074 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 05:19:39,075 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 05:19:39,075 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_b7eeaadf-b7d3-4b8e-bd6c-f8a1e5fedcd7/bin-2019/utaipan/../../sv-benchmarks/c/eca-rers2012/Problem02_label40_true-unreach-call_false-termination.c [2018-11-23 05:19:39,110 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_b7eeaadf-b7d3-4b8e-bd6c-f8a1e5fedcd7/bin-2019/utaipan/data/760a8160b/01b7f9c394424c74975209b4290e38bc/FLAG844cdea85 [2018-11-23 05:19:39,575 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 05:19:39,576 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_b7eeaadf-b7d3-4b8e-bd6c-f8a1e5fedcd7/sv-benchmarks/c/eca-rers2012/Problem02_label40_true-unreach-call_false-termination.c [2018-11-23 05:19:39,584 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_b7eeaadf-b7d3-4b8e-bd6c-f8a1e5fedcd7/bin-2019/utaipan/data/760a8160b/01b7f9c394424c74975209b4290e38bc/FLAG844cdea85 [2018-11-23 05:19:40,091 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_b7eeaadf-b7d3-4b8e-bd6c-f8a1e5fedcd7/bin-2019/utaipan/data/760a8160b/01b7f9c394424c74975209b4290e38bc [2018-11-23 05:19:40,093 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 05:19:40,094 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 05:19:40,094 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 05:19:40,095 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 05:19:40,097 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 05:19:40,098 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:19:40" (1/1) ... [2018-11-23 05:19:40,100 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56c8d80d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:19:40, skipping insertion in model container [2018-11-23 05:19:40,100 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:19:40" (1/1) ... [2018-11-23 05:19:40,108 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 05:19:40,144 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 05:19:40,375 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 05:19:40,379 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 05:19:40,449 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 05:19:40,462 INFO L195 MainTranslator]: Completed translation [2018-11-23 05:19:40,462 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:19:40 WrapperNode [2018-11-23 05:19:40,463 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 05:19:40,463 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 05:19:40,463 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 05:19:40,463 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 05:19:40,515 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:19:40" (1/1) ... [2018-11-23 05:19:40,527 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:19:40" (1/1) ... [2018-11-23 05:19:40,534 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 05:19:40,534 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 05:19:40,535 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 05:19:40,535 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 05:19:40,544 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:19:40" (1/1) ... [2018-11-23 05:19:40,544 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:19:40" (1/1) ... [2018-11-23 05:19:40,547 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:19:40" (1/1) ... [2018-11-23 05:19:40,547 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:19:40" (1/1) ... [2018-11-23 05:19:40,570 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:19:40" (1/1) ... [2018-11-23 05:19:40,579 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:19:40" (1/1) ... [2018-11-23 05:19:40,583 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:19:40" (1/1) ... [2018-11-23 05:19:40,588 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 05:19:40,589 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 05:19:40,589 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 05:19:40,589 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 05:19:40,590 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:19:40" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b7eeaadf-b7d3-4b8e-bd6c-f8a1e5fedcd7/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 05:19:40,638 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-23 05:19:40,638 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-23 05:19:40,638 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-23 05:19:40,638 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-11-23 05:19:40,638 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-11-23 05:19:40,639 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 05:19:40,639 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 05:19:40,639 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-23 05:19:40,639 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-23 05:19:41,399 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 05:19:41,399 INFO L280 CfgBuilder]: Removed 1 assue(true) statements. [2018-11-23 05:19:41,399 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 05:19:41 BoogieIcfgContainer [2018-11-23 05:19:41,399 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 05:19:41,400 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-23 05:19:41,400 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-23 05:19:41,403 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-23 05:19:41,403 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 05:19:40" (1/3) ... [2018-11-23 05:19:41,403 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11ca0935 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 05:19:41, skipping insertion in model container [2018-11-23 05:19:41,404 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:19:40" (2/3) ... [2018-11-23 05:19:41,404 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11ca0935 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 05:19:41, skipping insertion in model container [2018-11-23 05:19:41,404 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 05:19:41" (3/3) ... [2018-11-23 05:19:41,406 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem02_label40_true-unreach-call_false-termination.c [2018-11-23 05:19:41,412 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-23 05:19:41,417 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-23 05:19:41,429 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-23 05:19:41,450 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-23 05:19:41,450 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-23 05:19:41,450 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-23 05:19:41,450 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-23 05:19:41,450 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-23 05:19:41,450 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-23 05:19:41,451 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-23 05:19:41,451 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-23 05:19:41,467 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states. [2018-11-23 05:19:41,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2018-11-23 05:19:41,474 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 05:19:41,475 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] [2018-11-23 05:19:41,476 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 05:19:41,480 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 05:19:41,480 INFO L82 PathProgramCache]: Analyzing trace with hash -1033095319, now seen corresponding path program 1 times [2018-11-23 05:19:41,482 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 05:19:41,510 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 05:19:41,511 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 05:19:41,511 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 05:19:41,511 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 05:19:41,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 05:19:41,778 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 05:19:41,780 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 05:19:41,780 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-23 05:19:41,780 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 05:19:41,784 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-23 05:19:41,792 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-23 05:19:41,793 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-23 05:19:41,794 INFO L87 Difference]: Start difference. First operand 236 states. Second operand 4 states. [2018-11-23 05:19:42,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 05:19:42,618 INFO L93 Difference]: Finished difference Result 784 states and 1369 transitions. [2018-11-23 05:19:42,618 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-23 05:19:42,620 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 95 [2018-11-23 05:19:42,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 05:19:42,630 INFO L225 Difference]: With dead ends: 784 [2018-11-23 05:19:42,631 INFO L226 Difference]: Without dead ends: 542 [2018-11-23 05:19:42,635 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-23 05:19:42,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 542 states. [2018-11-23 05:19:42,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 542 to 381. [2018-11-23 05:19:42,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 381 states. [2018-11-23 05:19:42,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 381 states to 381 states and 629 transitions. [2018-11-23 05:19:42,682 INFO L78 Accepts]: Start accepts. Automaton has 381 states and 629 transitions. Word has length 95 [2018-11-23 05:19:42,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 05:19:42,682 INFO L480 AbstractCegarLoop]: Abstraction has 381 states and 629 transitions. [2018-11-23 05:19:42,682 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-23 05:19:42,683 INFO L276 IsEmpty]: Start isEmpty. Operand 381 states and 629 transitions. [2018-11-23 05:19:42,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2018-11-23 05:19:42,686 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 05:19:42,686 INFO L402 BasicCegarLoop]: trace histogram [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] [2018-11-23 05:19:42,687 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 05:19:42,687 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 05:19:42,687 INFO L82 PathProgramCache]: Analyzing trace with hash -377311506, now seen corresponding path program 1 times [2018-11-23 05:19:42,687 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 05:19:42,688 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 05:19:42,688 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 05:19:42,688 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 05:19:42,689 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 05:19:42,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 05:19:42,791 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 05:19:42,791 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 05:19:42,791 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-23 05:19:42,792 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 05:19:42,793 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-23 05:19:42,793 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-23 05:19:42,793 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-23 05:19:42,793 INFO L87 Difference]: Start difference. First operand 381 states and 629 transitions. Second operand 4 states. [2018-11-23 05:19:43,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 05:19:43,435 INFO L93 Difference]: Finished difference Result 1338 states and 2350 transitions. [2018-11-23 05:19:43,435 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-23 05:19:43,435 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 103 [2018-11-23 05:19:43,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 05:19:43,441 INFO L225 Difference]: With dead ends: 1338 [2018-11-23 05:19:43,441 INFO L226 Difference]: Without dead ends: 963 [2018-11-23 05:19:43,444 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-23 05:19:43,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 963 states. [2018-11-23 05:19:43,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 963 to 959. [2018-11-23 05:19:43,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 959 states. [2018-11-23 05:19:43,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 959 states to 959 states and 1505 transitions. [2018-11-23 05:19:43,480 INFO L78 Accepts]: Start accepts. Automaton has 959 states and 1505 transitions. Word has length 103 [2018-11-23 05:19:43,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 05:19:43,480 INFO L480 AbstractCegarLoop]: Abstraction has 959 states and 1505 transitions. [2018-11-23 05:19:43,480 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-23 05:19:43,480 INFO L276 IsEmpty]: Start isEmpty. Operand 959 states and 1505 transitions. [2018-11-23 05:19:43,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2018-11-23 05:19:43,485 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 05:19:43,485 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2018-11-23 05:19:43,485 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 05:19:43,485 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 05:19:43,485 INFO L82 PathProgramCache]: Analyzing trace with hash 549151607, now seen corresponding path program 1 times [2018-11-23 05:19:43,486 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 05:19:43,486 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 05:19:43,486 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 05:19:43,487 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 05:19:43,487 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 05:19:43,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 05:19:43,544 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 13 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-11-23 05:19:43,545 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 05:19:43,545 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 05:19:43,545 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 114 with the following transitions: [2018-11-23 05:19:43,547 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [5], [6], [10], [13], [14], [18], [22], [26], [30], [34], [38], [42], [53], [64], [68], [72], [76], [80], [84], [88], [92], [96], [100], [104], [108], [112], [116], [120], [124], [128], [132], [136], [140], [144], [148], [152], [156], [160], [171], [175], [179], [183], [187], [191], [195], [199], [210], [214], [218], [222], [233], [237], [241], [245], [249], [253], [257], [268], [272], [283], [287], [298], [309], [313], [317], [321], [325], [329], [333], [344], [348], [352], [356], [360], [364], [368], [372], [379], [387], [395], [403], [411], [419], [427], [435], [439], [441], [863], [867], [876], [880], [882], [887], [888], [889], [891], [892] [2018-11-23 05:19:43,585 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-23 05:19:43,585 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-23 05:19:43,904 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-23 05:19:43,905 INFO L272 AbstractInterpreter]: Visited 96 different actions 96 times. Never merged. Never widened. Performed 1130 root evaluator evaluations with a maximum evaluation depth of 3. Performed 1130 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Never found a fixpoint. Largest state had 38 variables. [2018-11-23 05:19:43,929 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 05:19:43,929 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-23 05:19:44,194 INFO L227 lantSequenceWeakener]: Weakened 104 states. On average, predicates are now at 80.5% of their original sizes. [2018-11-23 05:19:44,194 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-23 05:19:44,294 INFO L415 sIntCurrentIteration]: We unified 112 AI predicates to 112 [2018-11-23 05:19:44,295 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-23 05:19:44,296 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-23 05:19:44,297 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [5] total 10 [2018-11-23 05:19:44,297 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 05:19:44,297 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-23 05:19:44,297 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-23 05:19:44,297 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2018-11-23 05:19:44,298 INFO L87 Difference]: Start difference. First operand 959 states and 1505 transitions. Second operand 7 states. [2018-11-23 05:19:47,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 05:19:47,532 INFO L93 Difference]: Finished difference Result 2060 states and 3263 transitions. [2018-11-23 05:19:47,532 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-23 05:19:47,532 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 113 [2018-11-23 05:19:47,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 05:19:47,537 INFO L225 Difference]: With dead ends: 2060 [2018-11-23 05:19:47,537 INFO L226 Difference]: Without dead ends: 1107 [2018-11-23 05:19:47,539 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 113 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2018-11-23 05:19:47,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1107 states. [2018-11-23 05:19:47,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1107 to 1105. [2018-11-23 05:19:47,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1105 states. [2018-11-23 05:19:47,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1105 states to 1105 states and 1660 transitions. [2018-11-23 05:19:47,565 INFO L78 Accepts]: Start accepts. Automaton has 1105 states and 1660 transitions. Word has length 113 [2018-11-23 05:19:47,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 05:19:47,565 INFO L480 AbstractCegarLoop]: Abstraction has 1105 states and 1660 transitions. [2018-11-23 05:19:47,565 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-23 05:19:47,565 INFO L276 IsEmpty]: Start isEmpty. Operand 1105 states and 1660 transitions. [2018-11-23 05:19:47,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2018-11-23 05:19:47,568 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 05:19:47,568 INFO L402 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 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] [2018-11-23 05:19:47,568 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 05:19:47,569 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 05:19:47,569 INFO L82 PathProgramCache]: Analyzing trace with hash -1342405978, now seen corresponding path program 1 times [2018-11-23 05:19:47,569 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 05:19:47,570 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 05:19:47,570 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 05:19:47,570 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 05:19:47,570 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 05:19:47,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 05:19:47,679 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 23 proven. 16 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-11-23 05:19:47,679 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 05:19:47,679 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 05:19:47,680 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 123 with the following transitions: [2018-11-23 05:19:47,680 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [5], [6], [9], [10], [13], [14], [18], [22], [26], [30], [34], [38], [42], [53], [64], [68], [72], [76], [80], [84], [88], [92], [96], [100], [104], [108], [112], [116], [120], [124], [128], [132], [136], [140], [144], [148], [152], [156], [160], [171], [175], [179], [183], [187], [191], [195], [199], [210], [214], [218], [222], [233], [237], [241], [245], [249], [253], [257], [268], [272], [283], [287], [298], [309], [313], [317], [321], [325], [329], [333], [344], [348], [352], [356], [360], [364], [368], [372], [379], [387], [395], [403], [411], [419], [427], [435], [439], [441], [863], [867], [876], [880], [882], [887], [888], [889], [891], [892] [2018-11-23 05:19:47,683 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-23 05:19:47,684 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-23 05:19:48,009 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-23 05:19:48,009 INFO L272 AbstractInterpreter]: Visited 101 different actions 296 times. Merged at 6 different actions 15 times. Never widened. Performed 3530 root evaluator evaluations with a maximum evaluation depth of 3. Performed 3530 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 3 fixpoints after 3 different actions. Largest state had 38 variables. [2018-11-23 05:19:48,013 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 05:19:48,014 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-23 05:19:48,014 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 05:19:48,014 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b7eeaadf-b7d3-4b8e-bd6c-f8a1e5fedcd7/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 [2018-11-23 05:19:48,028 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 05:19:48,029 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-23 05:19:48,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 05:19:48,090 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 05:19:48,141 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 36 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-11-23 05:19:48,142 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-23 05:19:48,300 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 36 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-11-23 05:19:48,325 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-23 05:19:48,326 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 5, 5] total 13 [2018-11-23 05:19:48,326 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-23 05:19:48,326 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-11-23 05:19:48,326 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-11-23 05:19:48,327 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2018-11-23 05:19:48,327 INFO L87 Difference]: Start difference. First operand 1105 states and 1660 transitions. Second operand 11 states. [2018-11-23 05:19:50,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 05:19:50,547 INFO L93 Difference]: Finished difference Result 3864 states and 6825 transitions. [2018-11-23 05:19:50,548 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2018-11-23 05:19:50,548 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 122 [2018-11-23 05:19:50,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 05:19:50,567 INFO L225 Difference]: With dead ends: 3864 [2018-11-23 05:19:50,567 INFO L226 Difference]: Without dead ends: 2765 [2018-11-23 05:19:50,578 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 287 GetRequests, 256 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 197 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=277, Invalid=715, Unknown=0, NotChecked=0, Total=992 [2018-11-23 05:19:50,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2765 states. [2018-11-23 05:19:50,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2765 to 2644. [2018-11-23 05:19:50,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2644 states. [2018-11-23 05:19:50,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2644 states to 2644 states and 3716 transitions. [2018-11-23 05:19:50,661 INFO L78 Accepts]: Start accepts. Automaton has 2644 states and 3716 transitions. Word has length 122 [2018-11-23 05:19:50,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 05:19:50,661 INFO L480 AbstractCegarLoop]: Abstraction has 2644 states and 3716 transitions. [2018-11-23 05:19:50,661 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-11-23 05:19:50,661 INFO L276 IsEmpty]: Start isEmpty. Operand 2644 states and 3716 transitions. [2018-11-23 05:19:50,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2018-11-23 05:19:50,665 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 05:19:50,666 INFO L402 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 05:19:50,666 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 05:19:50,666 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 05:19:50,666 INFO L82 PathProgramCache]: Analyzing trace with hash -507428720, now seen corresponding path program 1 times [2018-11-23 05:19:50,666 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 05:19:50,667 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 05:19:50,667 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 05:19:50,667 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 05:19:50,667 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 05:19:50,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 05:19:50,736 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 44 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 05:19:50,736 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 05:19:50,736 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 05:19:50,737 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 135 with the following transitions: [2018-11-23 05:19:50,737 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [6], [10], [14], [18], [22], [25], [26], [30], [34], [38], [42], [53], [64], [68], [72], [76], [80], [84], [88], [91], [92], [96], [100], [104], [108], [112], [116], [120], [124], [128], [132], [136], [140], [144], [148], [152], [156], [160], [171], [175], [179], [183], [187], [191], [195], [199], [210], [214], [218], [222], [233], [237], [241], [245], [249], [253], [257], [268], [272], [283], [287], [298], [309], [313], [317], [321], [325], [329], [333], [344], [348], [352], [356], [360], [364], [368], [372], [379], [387], [395], [403], [411], [419], [427], [435], [439], [441], [863], [867], [876], [880], [882], [887], [888], [889], [891], [892] [2018-11-23 05:19:50,740 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-23 05:19:50,740 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-23 05:19:50,885 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-23 05:19:50,886 INFO L272 AbstractInterpreter]: Visited 99 different actions 192 times. Merged at 4 different actions 4 times. Never widened. Performed 2280 root evaluator evaluations with a maximum evaluation depth of 3. Performed 2280 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 1 fixpoints after 1 different actions. Largest state had 38 variables. [2018-11-23 05:19:50,901 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 05:19:50,901 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-23 05:19:51,057 INFO L227 lantSequenceWeakener]: Weakened 131 states. On average, predicates are now at 82.11% of their original sizes. [2018-11-23 05:19:51,057 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-23 05:19:51,110 INFO L415 sIntCurrentIteration]: We unified 133 AI predicates to 133 [2018-11-23 05:19:51,111 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-23 05:19:51,111 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-23 05:19:51,111 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [6] total 14 [2018-11-23 05:19:51,111 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 05:19:51,111 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-23 05:19:51,112 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-23 05:19:51,112 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2018-11-23 05:19:51,112 INFO L87 Difference]: Start difference. First operand 2644 states and 3716 transitions. Second operand 10 states. [2018-11-23 05:19:54,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 05:19:54,160 INFO L93 Difference]: Finished difference Result 6094 states and 8730 transitions. [2018-11-23 05:19:54,160 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-11-23 05:19:54,160 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 134 [2018-11-23 05:19:54,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 05:19:54,173 INFO L225 Difference]: With dead ends: 6094 [2018-11-23 05:19:54,173 INFO L226 Difference]: Without dead ends: 3600 [2018-11-23 05:19:54,181 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 142 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=92, Invalid=250, Unknown=0, NotChecked=0, Total=342 [2018-11-23 05:19:54,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3600 states. [2018-11-23 05:19:54,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3600 to 3537. [2018-11-23 05:19:54,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3537 states. [2018-11-23 05:19:54,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3537 states to 3537 states and 4753 transitions. [2018-11-23 05:19:54,260 INFO L78 Accepts]: Start accepts. Automaton has 3537 states and 4753 transitions. Word has length 134 [2018-11-23 05:19:54,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 05:19:54,261 INFO L480 AbstractCegarLoop]: Abstraction has 3537 states and 4753 transitions. [2018-11-23 05:19:54,261 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-23 05:19:54,261 INFO L276 IsEmpty]: Start isEmpty. Operand 3537 states and 4753 transitions. [2018-11-23 05:19:54,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2018-11-23 05:19:54,265 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 05:19:54,266 INFO L402 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 05:19:54,266 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 05:19:54,266 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 05:19:54,266 INFO L82 PathProgramCache]: Analyzing trace with hash -1260896796, now seen corresponding path program 1 times [2018-11-23 05:19:54,266 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 05:19:54,267 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 05:19:54,267 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 05:19:54,267 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 05:19:54,267 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 05:19:54,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 05:19:54,375 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 45 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 05:19:54,375 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 05:19:54,375 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 05:19:54,375 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 140 with the following transitions: [2018-11-23 05:19:54,376 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [6], [9], [10], [14], [18], [22], [26], [30], [34], [38], [42], [53], [64], [68], [72], [76], [80], [84], [88], [92], [96], [100], [104], [108], [112], [116], [120], [124], [127], [128], [132], [136], [140], [144], [148], [152], [156], [160], [171], [175], [179], [183], [187], [191], [195], [199], [210], [214], [218], [222], [233], [237], [241], [245], [249], [253], [257], [268], [272], [283], [287], [298], [309], [313], [317], [321], [325], [329], [333], [344], [348], [352], [356], [360], [364], [368], [372], [379], [387], [395], [403], [411], [419], [427], [435], [439], [441], [863], [867], [876], [880], [882], [887], [888], [889], [891], [892] [2018-11-23 05:19:54,379 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-23 05:19:54,379 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-23 05:19:54,508 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-23 05:19:54,508 INFO L272 AbstractInterpreter]: Visited 100 different actions 291 times. Merged at 6 different actions 13 times. Never widened. Performed 3528 root evaluator evaluations with a maximum evaluation depth of 3. Performed 3528 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 3 fixpoints after 2 different actions. Largest state had 38 variables. [2018-11-23 05:19:54,512 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 05:19:54,513 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-23 05:19:54,513 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 05:19:54,513 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b7eeaadf-b7d3-4b8e-bd6c-f8a1e5fedcd7/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 [2018-11-23 05:19:54,520 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 05:19:54,520 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-23 05:19:54,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 05:19:54,561 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 05:19:54,587 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 45 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 05:19:54,587 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-23 05:19:54,638 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 45 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 05:19:54,654 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-23 05:19:54,654 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 10 [2018-11-23 05:19:54,654 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-23 05:19:54,654 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-23 05:19:54,654 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-23 05:19:54,655 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2018-11-23 05:19:54,655 INFO L87 Difference]: Start difference. First operand 3537 states and 4753 transitions. Second operand 9 states. [2018-11-23 05:19:55,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 05:19:55,195 INFO L93 Difference]: Finished difference Result 7358 states and 10115 transitions. [2018-11-23 05:19:55,195 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-23 05:19:55,195 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 139 [2018-11-23 05:19:55,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 05:19:55,208 INFO L225 Difference]: With dead ends: 7358 [2018-11-23 05:19:55,208 INFO L226 Difference]: Without dead ends: 3971 [2018-11-23 05:19:55,216 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 288 GetRequests, 274 SyntacticMatches, 2 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2018-11-23 05:19:55,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3971 states. [2018-11-23 05:19:55,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3971 to 3956. [2018-11-23 05:19:55,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3956 states. [2018-11-23 05:19:55,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3956 states to 3956 states and 5181 transitions. [2018-11-23 05:19:55,300 INFO L78 Accepts]: Start accepts. Automaton has 3956 states and 5181 transitions. Word has length 139 [2018-11-23 05:19:55,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 05:19:55,301 INFO L480 AbstractCegarLoop]: Abstraction has 3956 states and 5181 transitions. [2018-11-23 05:19:55,301 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-23 05:19:55,301 INFO L276 IsEmpty]: Start isEmpty. Operand 3956 states and 5181 transitions. [2018-11-23 05:19:55,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2018-11-23 05:19:55,306 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 05:19:55,306 INFO L402 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-11-23 05:19:55,306 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 05:19:55,307 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 05:19:55,307 INFO L82 PathProgramCache]: Analyzing trace with hash -312439496, now seen corresponding path program 1 times [2018-11-23 05:19:55,307 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 05:19:55,307 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 05:19:55,308 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 05:19:55,308 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 05:19:55,308 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 05:19:55,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 05:19:55,391 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 88 proven. 2 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2018-11-23 05:19:55,392 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 05:19:55,392 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 05:19:55,392 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 157 with the following transitions: [2018-11-23 05:19:55,393 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [6], [10], [14], [18], [22], [25], [26], [30], [34], [38], [42], [53], [64], [68], [72], [75], [76], [80], [84], [88], [91], [92], [96], [100], [104], [108], [112], [116], [120], [124], [128], [132], [136], [140], [144], [148], [152], [156], [160], [171], [175], [179], [183], [187], [191], [195], [199], [210], [214], [218], [222], [233], [237], [241], [245], [249], [253], [257], [268], [272], [283], [287], [298], [309], [313], [317], [321], [325], [329], [333], [344], [348], [352], [356], [360], [364], [368], [372], [379], [387], [395], [403], [411], [419], [427], [435], [439], [441], [863], [867], [876], [880], [882], [887], [888], [889], [891], [892] [2018-11-23 05:19:55,395 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-23 05:19:55,395 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-23 05:19:55,615 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-23 05:19:55,615 INFO L272 AbstractInterpreter]: Visited 101 different actions 301 times. Merged at 7 different actions 20 times. Never widened. Performed 3795 root evaluator evaluations with a maximum evaluation depth of 3. Performed 3795 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 4 fixpoints after 3 different actions. Largest state had 38 variables. [2018-11-23 05:19:55,616 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 05:19:55,616 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-23 05:19:55,616 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 05:19:55,616 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b7eeaadf-b7d3-4b8e-bd6c-f8a1e5fedcd7/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 [2018-11-23 05:19:55,623 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 05:19:55,623 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-23 05:19:55,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 05:19:55,671 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 05:19:55,758 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 88 proven. 2 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2018-11-23 05:19:55,759 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-23 05:19:55,804 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 88 proven. 2 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2018-11-23 05:19:55,820 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-23 05:19:55,820 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 10 [2018-11-23 05:19:55,820 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-23 05:19:55,821 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-23 05:19:55,821 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-23 05:19:55,821 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2018-11-23 05:19:55,821 INFO L87 Difference]: Start difference. First operand 3956 states and 5181 transitions. Second operand 9 states. [2018-11-23 05:19:57,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 05:19:57,308 INFO L93 Difference]: Finished difference Result 11248 states and 15706 transitions. [2018-11-23 05:19:57,309 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-11-23 05:19:57,309 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 156 [2018-11-23 05:19:57,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 05:19:57,316 INFO L225 Difference]: With dead ends: 11248 [2018-11-23 05:19:57,317 INFO L226 Difference]: Without dead ends: 2508 [2018-11-23 05:19:57,336 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 339 GetRequests, 318 SyntacticMatches, 2 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=128, Invalid=292, Unknown=0, NotChecked=0, Total=420 [2018-11-23 05:19:57,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2508 states. [2018-11-23 05:19:57,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2508 to 2261. [2018-11-23 05:19:57,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2261 states. [2018-11-23 05:19:57,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2261 states to 2261 states and 2563 transitions. [2018-11-23 05:19:57,381 INFO L78 Accepts]: Start accepts. Automaton has 2261 states and 2563 transitions. Word has length 156 [2018-11-23 05:19:57,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 05:19:57,381 INFO L480 AbstractCegarLoop]: Abstraction has 2261 states and 2563 transitions. [2018-11-23 05:19:57,381 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-23 05:19:57,381 INFO L276 IsEmpty]: Start isEmpty. Operand 2261 states and 2563 transitions. [2018-11-23 05:19:57,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2018-11-23 05:19:57,386 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 05:19:57,386 INFO L402 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 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] [2018-11-23 05:19:57,387 INFO L423 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 05:19:57,387 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 05:19:57,387 INFO L82 PathProgramCache]: Analyzing trace with hash 1092685123, now seen corresponding path program 1 times [2018-11-23 05:19:57,387 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 05:19:57,388 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 05:19:57,388 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 05:19:57,388 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 05:19:57,388 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 05:19:57,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 05:19:57,694 INFO L134 CoverageAnalysis]: Checked inductivity of 266 backedges. 145 proven. 114 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-11-23 05:19:57,695 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 05:19:57,695 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 05:19:57,695 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 236 with the following transitions: [2018-11-23 05:19:57,695 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [6], [9], [10], [14], [18], [22], [26], [30], [34], [38], [42], [53], [64], [68], [72], [76], [80], [84], [88], [92], [96], [100], [104], [108], [112], [116], [120], [124], [128], [131], [132], [136], [140], [144], [148], [151], [152], [156], [160], [171], [175], [179], [183], [187], [191], [195], [199], [202], [205], [209], [210], [214], [218], [222], [233], [237], [241], [245], [249], [253], [257], [268], [272], [283], [287], [298], [309], [313], [317], [321], [325], [329], [333], [344], [348], [352], [356], [360], [364], [368], [372], [379], [387], [395], [403], [411], [419], [427], [435], [439], [441], [863], [867], [876], [880], [882], [887], [888], [889], [891], [892] [2018-11-23 05:19:57,697 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-23 05:19:57,697 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-23 05:19:57,995 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-23 05:19:57,995 INFO L272 AbstractInterpreter]: Visited 104 different actions 509 times. Merged at 8 different actions 39 times. Widened at 1 different actions 1 times. Performed 6147 root evaluator evaluations with a maximum evaluation depth of 3. Performed 6147 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 10 fixpoints after 3 different actions. Largest state had 38 variables. [2018-11-23 05:19:58,000 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 05:19:58,001 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-23 05:19:58,001 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 05:19:58,001 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b7eeaadf-b7d3-4b8e-bd6c-f8a1e5fedcd7/bin-2019/utaipan/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-23 05:19:58,007 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 05:19:58,007 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-23 05:19:58,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 05:19:58,057 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 05:19:58,198 INFO L134 CoverageAnalysis]: Checked inductivity of 266 backedges. 208 proven. 2 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2018-11-23 05:19:58,198 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-23 05:19:58,265 INFO L134 CoverageAnalysis]: Checked inductivity of 266 backedges. 180 proven. 36 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2018-11-23 05:19:58,280 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-23 05:19:58,280 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 5, 5] total 18 [2018-11-23 05:19:58,280 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-23 05:19:58,281 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-11-23 05:19:58,281 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-11-23 05:19:58,281 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=245, Unknown=0, NotChecked=0, Total=306 [2018-11-23 05:19:58,281 INFO L87 Difference]: Start difference. First operand 2261 states and 2563 transitions. Second operand 16 states. [2018-11-23 05:19:59,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 05:19:59,866 INFO L93 Difference]: Finished difference Result 4941 states and 5700 transitions. [2018-11-23 05:19:59,867 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2018-11-23 05:19:59,867 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 235 [2018-11-23 05:19:59,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 05:19:59,873 INFO L225 Difference]: With dead ends: 4941 [2018-11-23 05:19:59,873 INFO L226 Difference]: Without dead ends: 2386 [2018-11-23 05:19:59,877 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 542 GetRequests, 491 SyntacticMatches, 1 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 687 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=671, Invalid=1981, Unknown=0, NotChecked=0, Total=2652 [2018-11-23 05:19:59,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2386 states. [2018-11-23 05:19:59,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2386 to 2261. [2018-11-23 05:19:59,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2261 states. [2018-11-23 05:19:59,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2261 states to 2261 states and 2528 transitions. [2018-11-23 05:19:59,920 INFO L78 Accepts]: Start accepts. Automaton has 2261 states and 2528 transitions. Word has length 235 [2018-11-23 05:19:59,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 05:19:59,921 INFO L480 AbstractCegarLoop]: Abstraction has 2261 states and 2528 transitions. [2018-11-23 05:19:59,921 INFO L481 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-11-23 05:19:59,921 INFO L276 IsEmpty]: Start isEmpty. Operand 2261 states and 2528 transitions. [2018-11-23 05:19:59,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2018-11-23 05:19:59,927 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 05:19:59,927 INFO L402 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2018-11-23 05:19:59,927 INFO L423 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 05:19:59,928 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 05:19:59,928 INFO L82 PathProgramCache]: Analyzing trace with hash 220350546, now seen corresponding path program 1 times [2018-11-23 05:19:59,928 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 05:19:59,928 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 05:19:59,928 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 05:19:59,929 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 05:19:59,929 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 05:19:59,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 05:20:00,044 INFO L134 CoverageAnalysis]: Checked inductivity of 260 backedges. 142 proven. 0 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2018-11-23 05:20:00,044 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 05:20:00,044 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-23 05:20:00,044 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 05:20:00,045 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-23 05:20:00,045 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-23 05:20:00,045 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 05:20:00,045 INFO L87 Difference]: Start difference. First operand 2261 states and 2528 transitions. Second operand 3 states. [2018-11-23 05:20:00,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 05:20:00,278 INFO L93 Difference]: Finished difference Result 4069 states and 4629 transitions. [2018-11-23 05:20:00,278 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-23 05:20:00,279 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 242 [2018-11-23 05:20:00,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 05:20:00,279 INFO L225 Difference]: With dead ends: 4069 [2018-11-23 05:20:00,279 INFO L226 Difference]: Without dead ends: 0 [2018-11-23 05:20:00,284 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 [2018-11-23 05:20:00,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-23 05:20:00,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-23 05:20:00,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-23 05:20:00,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-23 05:20:00,285 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 242 [2018-11-23 05:20:00,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 05:20:00,285 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-23 05:20:00,285 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-23 05:20:00,285 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-23 05:20:00,285 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 05:20:00,289 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-23 05:20:00,486 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 05:20:00,594 WARN L180 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 158 [2018-11-23 05:20:00,659 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 05:20:00,755 WARN L180 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 186 DAG size of output: 156 [2018-11-23 05:20:01,375 WARN L180 SmtUtils]: Spent 534.00 ms on a formula simplification. DAG size of input: 202 DAG size of output: 53 [2018-11-23 05:20:01,743 WARN L180 SmtUtils]: Spent 356.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 50 [2018-11-23 05:20:02,070 WARN L180 SmtUtils]: Spent 326.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 50 [2018-11-23 05:20:02,072 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-23 05:20:02,072 INFO L444 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~a11~0 |old(~a11~0)|) (= |old(~a17~0)| ~a17~0) (= |old(~a25~0)| ~a25~0) (= ~a19~0 |old(~a19~0)|) (= ~a28~0 |old(~a28~0)|)) [2018-11-23 05:20:02,072 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-23 05:20:02,072 INFO L448 ceAbstractionStarter]: For program point L564-1(lines 29 598) no Hoare annotation was computed. [2018-11-23 05:20:02,072 INFO L448 ceAbstractionStarter]: For program point L531-1(lines 29 598) no Hoare annotation was computed. [2018-11-23 05:20:02,072 INFO L448 ceAbstractionStarter]: For program point L498-1(lines 29 598) no Hoare annotation was computed. [2018-11-23 05:20:02,072 INFO L448 ceAbstractionStarter]: For program point L465-1(lines 29 598) no Hoare annotation was computed. [2018-11-23 05:20:02,072 INFO L448 ceAbstractionStarter]: For program point L432-1(lines 29 598) no Hoare annotation was computed. [2018-11-23 05:20:02,072 INFO L448 ceAbstractionStarter]: For program point L234(lines 234 413) no Hoare annotation was computed. [2018-11-23 05:20:02,072 INFO L448 ceAbstractionStarter]: For program point L69(lines 69 413) no Hoare annotation was computed. [2018-11-23 05:20:02,072 INFO L448 ceAbstractionStarter]: For program point L565(line 565) no Hoare annotation was computed. [2018-11-23 05:20:02,072 INFO L448 ceAbstractionStarter]: For program point L532(line 532) no Hoare annotation was computed. [2018-11-23 05:20:02,072 INFO L448 ceAbstractionStarter]: For program point L499(line 499) no Hoare annotation was computed. [2018-11-23 05:20:02,072 INFO L448 ceAbstractionStarter]: For program point L466(line 466) no Hoare annotation was computed. [2018-11-23 05:20:02,072 INFO L448 ceAbstractionStarter]: For program point L433(line 433) no Hoare annotation was computed. [2018-11-23 05:20:02,072 INFO L448 ceAbstractionStarter]: For program point L202(lines 202 413) no Hoare annotation was computed. [2018-11-23 05:20:02,072 INFO L448 ceAbstractionStarter]: For program point L169(lines 169 413) no Hoare annotation was computed. [2018-11-23 05:20:02,072 INFO L448 ceAbstractionStarter]: For program point L368(lines 368 413) no Hoare annotation was computed. [2018-11-23 05:20:02,072 INFO L448 ceAbstractionStarter]: For program point L203(lines 203 210) no Hoare annotation was computed. [2018-11-23 05:20:02,072 INFO L448 ceAbstractionStarter]: For program point L203-2(lines 203 210) no Hoare annotation was computed. [2018-11-23 05:20:02,073 INFO L448 ceAbstractionStarter]: For program point L38(lines 38 413) no Hoare annotation was computed. [2018-11-23 05:20:02,073 INFO L448 ceAbstractionStarter]: For program point L567-1(lines 29 598) no Hoare annotation was computed. [2018-11-23 05:20:02,073 INFO L448 ceAbstractionStarter]: For program point L534-1(lines 29 598) no Hoare annotation was computed. [2018-11-23 05:20:02,073 INFO L448 ceAbstractionStarter]: For program point L501-1(lines 29 598) no Hoare annotation was computed. [2018-11-23 05:20:02,073 INFO L448 ceAbstractionStarter]: For program point L468-1(lines 29 598) no Hoare annotation was computed. [2018-11-23 05:20:02,073 INFO L448 ceAbstractionStarter]: For program point L402(lines 402 413) no Hoare annotation was computed. [2018-11-23 05:20:02,073 INFO L448 ceAbstractionStarter]: For program point L435-1(lines 29 598) no Hoare annotation was computed. [2018-11-23 05:20:02,073 INFO L448 ceAbstractionStarter]: For program point L237(lines 237 413) no Hoare annotation was computed. [2018-11-23 05:20:02,073 INFO L448 ceAbstractionStarter]: For program point L568(line 568) no Hoare annotation was computed. [2018-11-23 05:20:02,073 INFO L448 ceAbstractionStarter]: For program point L535(line 535) no Hoare annotation was computed. [2018-11-23 05:20:02,073 INFO L448 ceAbstractionStarter]: For program point L502(line 502) no Hoare annotation was computed. [2018-11-23 05:20:02,073 INFO L448 ceAbstractionStarter]: For program point L469(line 469) no Hoare annotation was computed. [2018-11-23 05:20:02,073 INFO L448 ceAbstractionStarter]: For program point L436(line 436) no Hoare annotation was computed. [2018-11-23 05:20:02,073 INFO L448 ceAbstractionStarter]: For program point L337(lines 337 413) no Hoare annotation was computed. [2018-11-23 05:20:02,073 INFO L448 ceAbstractionStarter]: For program point L238(lines 238 246) no Hoare annotation was computed. [2018-11-23 05:20:02,073 INFO L448 ceAbstractionStarter]: For program point L238-2(lines 238 246) no Hoare annotation was computed. [2018-11-23 05:20:02,073 INFO L448 ceAbstractionStarter]: For program point L139(lines 139 413) no Hoare annotation was computed. [2018-11-23 05:20:02,073 INFO L448 ceAbstractionStarter]: For program point L106(lines 106 413) no Hoare annotation was computed. [2018-11-23 05:20:02,073 INFO L448 ceAbstractionStarter]: For program point L404(lines 404 413) no Hoare annotation was computed. [2018-11-23 05:20:02,073 INFO L448 ceAbstractionStarter]: For program point L338(lines 338 347) no Hoare annotation was computed. [2018-11-23 05:20:02,073 INFO L448 ceAbstractionStarter]: For program point L338-2(lines 338 347) no Hoare annotation was computed. [2018-11-23 05:20:02,073 INFO L448 ceAbstractionStarter]: For program point L74(lines 74 413) no Hoare annotation was computed. [2018-11-23 05:20:02,073 INFO L448 ceAbstractionStarter]: For program point L570-1(lines 29 598) no Hoare annotation was computed. [2018-11-23 05:20:02,074 INFO L448 ceAbstractionStarter]: For program point L537-1(lines 29 598) no Hoare annotation was computed. [2018-11-23 05:20:02,074 INFO L448 ceAbstractionStarter]: For program point L504-1(lines 29 598) no Hoare annotation was computed. [2018-11-23 05:20:02,074 INFO L448 ceAbstractionStarter]: For program point L471-1(lines 29 598) no Hoare annotation was computed. [2018-11-23 05:20:02,074 INFO L448 ceAbstractionStarter]: For program point L438-1(lines 29 598) no Hoare annotation was computed. [2018-11-23 05:20:02,074 INFO L448 ceAbstractionStarter]: For program point L75(lines 75 80) no Hoare annotation was computed. [2018-11-23 05:20:02,074 INFO L448 ceAbstractionStarter]: For program point L42(lines 42 413) no Hoare annotation was computed. [2018-11-23 05:20:02,074 INFO L448 ceAbstractionStarter]: For program point L75-2(lines 75 80) no Hoare annotation was computed. [2018-11-23 05:20:02,074 INFO L448 ceAbstractionStarter]: For program point L571(line 571) no Hoare annotation was computed. [2018-11-23 05:20:02,074 INFO L448 ceAbstractionStarter]: For program point L538(line 538) no Hoare annotation was computed. [2018-11-23 05:20:02,074 INFO L448 ceAbstractionStarter]: For program point L505(line 505) no Hoare annotation was computed. [2018-11-23 05:20:02,074 INFO L448 ceAbstractionStarter]: For program point L472(line 472) no Hoare annotation was computed. [2018-11-23 05:20:02,074 INFO L448 ceAbstractionStarter]: For program point L439(line 439) no Hoare annotation was computed. [2018-11-23 05:20:02,074 INFO L448 ceAbstractionStarter]: For program point L175(lines 175 413) no Hoare annotation was computed. [2018-11-23 05:20:02,074 INFO L448 ceAbstractionStarter]: For program point L407(lines 407 413) no Hoare annotation was computed. [2018-11-23 05:20:02,074 INFO L448 ceAbstractionStarter]: For program point L143(lines 143 413) no Hoare annotation was computed. [2018-11-23 05:20:02,075 INFO L448 ceAbstractionStarter]: For program point L573-1(lines 29 598) no Hoare annotation was computed. [2018-11-23 05:20:02,075 INFO L448 ceAbstractionStarter]: For program point L540-1(lines 29 598) no Hoare annotation was computed. [2018-11-23 05:20:02,075 INFO L448 ceAbstractionStarter]: For program point L507-1(lines 29 598) no Hoare annotation was computed. [2018-11-23 05:20:02,075 INFO L448 ceAbstractionStarter]: For program point L474-1(lines 29 598) no Hoare annotation was computed. [2018-11-23 05:20:02,075 INFO L448 ceAbstractionStarter]: For program point L441-1(lines 29 598) no Hoare annotation was computed. [2018-11-23 05:20:02,075 INFO L448 ceAbstractionStarter]: For program point L375(lines 375 413) no Hoare annotation was computed. [2018-11-23 05:20:02,075 INFO L448 ceAbstractionStarter]: For program point L309(lines 309 413) no Hoare annotation was computed. [2018-11-23 05:20:02,075 INFO L448 ceAbstractionStarter]: For program point L276(lines 276 413) no Hoare annotation was computed. [2018-11-23 05:20:02,075 INFO L448 ceAbstractionStarter]: For program point L574(line 574) no Hoare annotation was computed. [2018-11-23 05:20:02,075 INFO L448 ceAbstractionStarter]: For program point L541(line 541) no Hoare annotation was computed. [2018-11-23 05:20:02,075 INFO L448 ceAbstractionStarter]: For program point L508(line 508) no Hoare annotation was computed. [2018-11-23 05:20:02,075 INFO L448 ceAbstractionStarter]: For program point L475(line 475) no Hoare annotation was computed. [2018-11-23 05:20:02,075 INFO L448 ceAbstractionStarter]: For program point L442(line 442) no Hoare annotation was computed. [2018-11-23 05:20:02,075 INFO L448 ceAbstractionStarter]: For program point L409(lines 409 413) no Hoare annotation was computed. [2018-11-23 05:20:02,076 INFO L448 ceAbstractionStarter]: For program point L212(lines 212 413) no Hoare annotation was computed. [2018-11-23 05:20:02,076 INFO L448 ceAbstractionStarter]: For program point L179(lines 179 413) no Hoare annotation was computed. [2018-11-23 05:20:02,076 INFO L448 ceAbstractionStarter]: For program point L113(lines 113 413) no Hoare annotation was computed. [2018-11-23 05:20:02,076 INFO L448 ceAbstractionStarter]: For program point L47(lines 47 413) no Hoare annotation was computed. [2018-11-23 05:20:02,076 INFO L448 ceAbstractionStarter]: For program point L576-1(lines 29 598) no Hoare annotation was computed. [2018-11-23 05:20:02,076 INFO L448 ceAbstractionStarter]: For program point L543-1(lines 29 598) no Hoare annotation was computed. [2018-11-23 05:20:02,076 INFO L448 ceAbstractionStarter]: For program point L510-1(lines 29 598) no Hoare annotation was computed. [2018-11-23 05:20:02,076 INFO L448 ceAbstractionStarter]: For program point L477-1(lines 29 598) no Hoare annotation was computed. [2018-11-23 05:20:02,076 INFO L448 ceAbstractionStarter]: For program point L444-1(lines 29 598) no Hoare annotation was computed. [2018-11-23 05:20:02,076 INFO L448 ceAbstractionStarter]: For program point L378(lines 378 413) no Hoare annotation was computed. [2018-11-23 05:20:02,076 INFO L448 ceAbstractionStarter]: For program point L577(line 577) no Hoare annotation was computed. [2018-11-23 05:20:02,076 INFO L448 ceAbstractionStarter]: For program point L544(line 544) no Hoare annotation was computed. [2018-11-23 05:20:02,076 INFO L448 ceAbstractionStarter]: For program point L511(line 511) no Hoare annotation was computed. [2018-11-23 05:20:02,076 INFO L448 ceAbstractionStarter]: For program point L478(line 478) no Hoare annotation was computed. [2018-11-23 05:20:02,076 INFO L448 ceAbstractionStarter]: For program point L445(line 445) no Hoare annotation was computed. [2018-11-23 05:20:02,076 INFO L448 ceAbstractionStarter]: For program point L280(lines 280 413) no Hoare annotation was computed. [2018-11-23 05:20:02,077 INFO L448 ceAbstractionStarter]: For program point L148(lines 148 413) no Hoare annotation was computed. [2018-11-23 05:20:02,077 INFO L448 ceAbstractionStarter]: For program point L82(lines 82 413) no Hoare annotation was computed. [2018-11-23 05:20:02,077 INFO L448 ceAbstractionStarter]: For program point L380(lines 380 413) no Hoare annotation was computed. [2018-11-23 05:20:02,077 INFO L448 ceAbstractionStarter]: For program point L314(lines 314 413) no Hoare annotation was computed. [2018-11-23 05:20:02,077 INFO L448 ceAbstractionStarter]: For program point L248(lines 248 413) no Hoare annotation was computed. [2018-11-23 05:20:02,077 INFO L448 ceAbstractionStarter]: For program point L215(lines 215 413) no Hoare annotation was computed. [2018-11-23 05:20:02,077 INFO L448 ceAbstractionStarter]: For program point L83(lines 83 89) no Hoare annotation was computed. [2018-11-23 05:20:02,077 INFO L448 ceAbstractionStarter]: For program point L50(lines 50 413) no Hoare annotation was computed. [2018-11-23 05:20:02,077 INFO L448 ceAbstractionStarter]: For program point L83-2(lines 83 89) no Hoare annotation was computed. [2018-11-23 05:20:02,077 INFO L448 ceAbstractionStarter]: For program point L579-1(lines 29 598) no Hoare annotation was computed. [2018-11-23 05:20:02,077 INFO L448 ceAbstractionStarter]: For program point L546-1(lines 29 598) no Hoare annotation was computed. [2018-11-23 05:20:02,077 INFO L448 ceAbstractionStarter]: For program point L513-1(lines 29 598) no Hoare annotation was computed. [2018-11-23 05:20:02,077 INFO L448 ceAbstractionStarter]: For program point L480-1(lines 29 598) no Hoare annotation was computed. [2018-11-23 05:20:02,077 INFO L448 ceAbstractionStarter]: For program point L414(lines 414 416) no Hoare annotation was computed. [2018-11-23 05:20:02,077 INFO L448 ceAbstractionStarter]: For program point L447-1(lines 29 598) no Hoare annotation was computed. [2018-11-23 05:20:02,077 INFO L448 ceAbstractionStarter]: For program point L381(lines 381 387) no Hoare annotation was computed. [2018-11-23 05:20:02,077 INFO L448 ceAbstractionStarter]: For program point L414-2(lines 29 598) no Hoare annotation was computed. [2018-11-23 05:20:02,077 INFO L448 ceAbstractionStarter]: For program point L315(lines 315 326) no Hoare annotation was computed. [2018-11-23 05:20:02,077 INFO L448 ceAbstractionStarter]: For program point L381-2(lines 381 387) no Hoare annotation was computed. [2018-11-23 05:20:02,077 INFO L448 ceAbstractionStarter]: For program point L315-2(lines 315 326) no Hoare annotation was computed. [2018-11-23 05:20:02,077 INFO L448 ceAbstractionStarter]: For program point calculate_outputFINAL(lines 29 598) no Hoare annotation was computed. [2018-11-23 05:20:02,077 INFO L448 ceAbstractionStarter]: For program point calculate_outputEXIT(lines 29 598) no Hoare annotation was computed. [2018-11-23 05:20:02,077 INFO L448 ceAbstractionStarter]: For program point L580(line 580) no Hoare annotation was computed. [2018-11-23 05:20:02,077 INFO L448 ceAbstractionStarter]: For program point L547(line 547) no Hoare annotation was computed. [2018-11-23 05:20:02,077 INFO L448 ceAbstractionStarter]: For program point L514(line 514) no Hoare annotation was computed. [2018-11-23 05:20:02,078 INFO L448 ceAbstractionStarter]: For program point L481(line 481) no Hoare annotation was computed. [2018-11-23 05:20:02,078 INFO L448 ceAbstractionStarter]: For program point L448(line 448) no Hoare annotation was computed. [2018-11-23 05:20:02,078 INFO L448 ceAbstractionStarter]: For program point L415(line 415) no Hoare annotation was computed. [2018-11-23 05:20:02,078 INFO L448 ceAbstractionStarter]: For program point L349(lines 349 413) no Hoare annotation was computed. [2018-11-23 05:20:02,078 INFO L448 ceAbstractionStarter]: For program point L283(lines 283 413) no Hoare annotation was computed. [2018-11-23 05:20:02,078 INFO L448 ceAbstractionStarter]: For program point L218(lines 218 413) no Hoare annotation was computed. [2018-11-23 05:20:02,078 INFO L448 ceAbstractionStarter]: For program point L185(lines 185 413) no Hoare annotation was computed. [2018-11-23 05:20:02,078 INFO L448 ceAbstractionStarter]: For program point L119(lines 119 413) no Hoare annotation was computed. [2018-11-23 05:20:02,078 INFO L448 ceAbstractionStarter]: For program point L582-1(lines 29 598) no Hoare annotation was computed. [2018-11-23 05:20:02,078 INFO L448 ceAbstractionStarter]: For program point L549-1(lines 29 598) no Hoare annotation was computed. [2018-11-23 05:20:02,078 INFO L448 ceAbstractionStarter]: For program point L516-1(lines 29 598) no Hoare annotation was computed. [2018-11-23 05:20:02,078 INFO L448 ceAbstractionStarter]: For program point L483-1(lines 29 598) no Hoare annotation was computed. [2018-11-23 05:20:02,078 INFO L448 ceAbstractionStarter]: For program point L450-1(lines 29 598) no Hoare annotation was computed. [2018-11-23 05:20:02,078 INFO L448 ceAbstractionStarter]: For program point L417-1(lines 29 598) no Hoare annotation was computed. [2018-11-23 05:20:02,078 INFO L448 ceAbstractionStarter]: For program point L54(lines 54 413) no Hoare annotation was computed. [2018-11-23 05:20:02,078 INFO L448 ceAbstractionStarter]: For program point L583(line 583) no Hoare annotation was computed. [2018-11-23 05:20:02,078 INFO L448 ceAbstractionStarter]: For program point L550(line 550) no Hoare annotation was computed. [2018-11-23 05:20:02,078 INFO L448 ceAbstractionStarter]: For program point L517(line 517) no Hoare annotation was computed. [2018-11-23 05:20:02,078 INFO L448 ceAbstractionStarter]: For program point L484(line 484) no Hoare annotation was computed. [2018-11-23 05:20:02,078 INFO L448 ceAbstractionStarter]: For program point L451(line 451) no Hoare annotation was computed. [2018-11-23 05:20:02,078 INFO L448 ceAbstractionStarter]: For program point L418(line 418) no Hoare annotation was computed. [2018-11-23 05:20:02,078 INFO L448 ceAbstractionStarter]: For program point L286(lines 286 413) no Hoare annotation was computed. [2018-11-23 05:20:02,079 INFO L448 ceAbstractionStarter]: For program point L253(lines 253 413) no Hoare annotation was computed. [2018-11-23 05:20:02,079 INFO L448 ceAbstractionStarter]: For program point L187(lines 187 413) no Hoare annotation was computed. [2018-11-23 05:20:02,079 INFO L448 ceAbstractionStarter]: For program point L154(lines 154 413) no Hoare annotation was computed. [2018-11-23 05:20:02,079 INFO L448 ceAbstractionStarter]: For program point L585-1(lines 29 598) no Hoare annotation was computed. [2018-11-23 05:20:02,079 INFO L448 ceAbstractionStarter]: For program point L552-1(lines 29 598) no Hoare annotation was computed. [2018-11-23 05:20:02,079 INFO L448 ceAbstractionStarter]: For program point L519-1(lines 29 598) no Hoare annotation was computed. [2018-11-23 05:20:02,079 INFO L448 ceAbstractionStarter]: For program point L486-1(lines 29 598) no Hoare annotation was computed. [2018-11-23 05:20:02,079 INFO L448 ceAbstractionStarter]: For program point L453-1(lines 29 598) no Hoare annotation was computed. [2018-11-23 05:20:02,079 INFO L448 ceAbstractionStarter]: For program point L420-1(lines 29 598) no Hoare annotation was computed. [2018-11-23 05:20:02,079 INFO L448 ceAbstractionStarter]: For program point L354(lines 354 413) no Hoare annotation was computed. [2018-11-23 05:20:02,079 INFO L448 ceAbstractionStarter]: For program point L189(lines 189 413) no Hoare annotation was computed. [2018-11-23 05:20:02,079 INFO L448 ceAbstractionStarter]: For program point L123(lines 123 413) no Hoare annotation was computed. [2018-11-23 05:20:02,079 INFO L448 ceAbstractionStarter]: For program point L586(line 586) no Hoare annotation was computed. [2018-11-23 05:20:02,079 INFO L448 ceAbstractionStarter]: For program point L553(line 553) no Hoare annotation was computed. [2018-11-23 05:20:02,079 INFO L448 ceAbstractionStarter]: For program point L520(line 520) no Hoare annotation was computed. [2018-11-23 05:20:02,079 INFO L448 ceAbstractionStarter]: For program point L487(line 487) no Hoare annotation was computed. [2018-11-23 05:20:02,079 INFO L448 ceAbstractionStarter]: For program point L454(line 454) no Hoare annotation was computed. [2018-11-23 05:20:02,079 INFO L448 ceAbstractionStarter]: For program point L421(line 421) no Hoare annotation was computed. [2018-11-23 05:20:02,079 INFO L448 ceAbstractionStarter]: For program point L223(lines 223 413) no Hoare annotation was computed. [2018-11-23 05:20:02,079 INFO L448 ceAbstractionStarter]: For program point L91(lines 91 413) no Hoare annotation was computed. [2018-11-23 05:20:02,080 INFO L448 ceAbstractionStarter]: For program point L389(lines 389 413) no Hoare annotation was computed. [2018-11-23 05:20:02,080 INFO L448 ceAbstractionStarter]: For program point L191(lines 191 413) no Hoare annotation was computed. [2018-11-23 05:20:02,080 INFO L448 ceAbstractionStarter]: For program point L59(lines 59 413) no Hoare annotation was computed. [2018-11-23 05:20:02,080 INFO L448 ceAbstractionStarter]: For program point L588-1(lines 29 598) no Hoare annotation was computed. [2018-11-23 05:20:02,080 INFO L448 ceAbstractionStarter]: For program point L555-1(lines 29 598) no Hoare annotation was computed. [2018-11-23 05:20:02,080 INFO L448 ceAbstractionStarter]: For program point L522-1(lines 29 598) no Hoare annotation was computed. [2018-11-23 05:20:02,080 INFO L444 ceAbstractionStarter]: At program point calculate_outputENTRY(lines 29 598) the Hoare annotation is: (let ((.cse0 (= 1 |old(~a11~0)|)) (.cse13 (= ~a17~0 |old(~a17~0)|)) (.cse14 (= ~a19~0 |old(~a19~0)|)) (.cse8 (= |old(~a17~0)| ~a17~0)) (.cse9 (= |old(~a25~0)| ~a25~0)) (.cse10 (= ~a28~0 |old(~a28~0)|))) (let ((.cse1 (and (= ~a11~0 |old(~a11~0)|) .cse8 .cse9 .cse10)) (.cse2 (< 7 |old(~a17~0)|)) (.cse5 (and .cse9 (= |old(~a11~0)| ~a11~0) .cse13 .cse14 .cse10)) (.cse3 (< 10 |old(~a28~0)|)) (.cse4 (not (= 1 ~a21~0))) (.cse12 (not (= 1 |old(~a25~0)|))) (.cse7 (= 1 ~a11~0)) (.cse6 (< 8 |old(~a17~0)|)) (.cse11 (not .cse0))) (and (or .cse0 .cse1 .cse2) (or .cse3 .cse4 .cse0 .cse5 .cse6) (or .cse3 (= |old(~a11~0)| |old(~a19~0)|) (and .cse7 .cse8 .cse9 .cse10 (not (= 1 ~a19~0))) .cse6 .cse11) (or .cse3 .cse1 .cse2) (or .cse3 (= 7 |old(~a28~0)|) .cse6 .cse11 (and .cse7 .cse8 .cse9 .cse10)) (or .cse4 .cse0 .cse12 .cse5 .cse6) (or .cse3 .cse4 .cse12 (= 8 |old(~a28~0)|) (and .cse9 .cse13 .cse7 .cse14 .cse10) .cse6 .cse11)))) [2018-11-23 05:20:02,080 INFO L448 ceAbstractionStarter]: For program point L489-1(lines 29 598) no Hoare annotation was computed. [2018-11-23 05:20:02,080 INFO L448 ceAbstractionStarter]: For program point L456-1(lines 29 598) no Hoare annotation was computed. [2018-11-23 05:20:02,080 INFO L448 ceAbstractionStarter]: For program point L423-1(lines 29 598) no Hoare annotation was computed. [2018-11-23 05:20:02,080 INFO L448 ceAbstractionStarter]: For program point L291(lines 291 413) no Hoare annotation was computed. [2018-11-23 05:20:02,080 INFO L448 ceAbstractionStarter]: For program point L225(lines 225 413) no Hoare annotation was computed. [2018-11-23 05:20:02,080 INFO L448 ceAbstractionStarter]: For program point L159(lines 159 413) no Hoare annotation was computed. [2018-11-23 05:20:02,080 INFO L448 ceAbstractionStarter]: For program point L589(line 589) no Hoare annotation was computed. [2018-11-23 05:20:02,080 INFO L448 ceAbstractionStarter]: For program point L556(line 556) no Hoare annotation was computed. [2018-11-23 05:20:02,080 INFO L448 ceAbstractionStarter]: For program point L523(line 523) no Hoare annotation was computed. [2018-11-23 05:20:02,080 INFO L448 ceAbstractionStarter]: For program point L490(line 490) no Hoare annotation was computed. [2018-11-23 05:20:02,080 INFO L448 ceAbstractionStarter]: For program point L457(line 457) no Hoare annotation was computed. [2018-11-23 05:20:02,080 INFO L448 ceAbstractionStarter]: For program point L424(line 424) no Hoare annotation was computed. [2018-11-23 05:20:02,080 INFO L448 ceAbstractionStarter]: For program point L259(lines 259 413) no Hoare annotation was computed. [2018-11-23 05:20:02,080 INFO L448 ceAbstractionStarter]: For program point L293(lines 293 413) no Hoare annotation was computed. [2018-11-23 05:20:02,080 INFO L448 ceAbstractionStarter]: For program point L194(lines 194 413) no Hoare annotation was computed. [2018-11-23 05:20:02,080 INFO L448 ceAbstractionStarter]: For program point L95(lines 95 413) no Hoare annotation was computed. [2018-11-23 05:20:02,081 INFO L448 ceAbstractionStarter]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 439) no Hoare annotation was computed. [2018-11-23 05:20:02,081 INFO L448 ceAbstractionStarter]: For program point L591-1(lines 29 598) no Hoare annotation was computed. [2018-11-23 05:20:02,081 INFO L448 ceAbstractionStarter]: For program point L558-1(lines 29 598) no Hoare annotation was computed. [2018-11-23 05:20:02,081 INFO L448 ceAbstractionStarter]: For program point L525-1(lines 29 598) no Hoare annotation was computed. [2018-11-23 05:20:02,081 INFO L448 ceAbstractionStarter]: For program point L492-1(lines 29 598) no Hoare annotation was computed. [2018-11-23 05:20:02,081 INFO L448 ceAbstractionStarter]: For program point L459-1(lines 29 598) no Hoare annotation was computed. [2018-11-23 05:20:02,081 INFO L448 ceAbstractionStarter]: For program point L426-1(lines 29 598) no Hoare annotation was computed. [2018-11-23 05:20:02,081 INFO L448 ceAbstractionStarter]: For program point L261(lines 261 413) no Hoare annotation was computed. [2018-11-23 05:20:02,081 INFO L448 ceAbstractionStarter]: For program point L30(lines 30 413) no Hoare annotation was computed. [2018-11-23 05:20:02,081 INFO L448 ceAbstractionStarter]: For program point L592(line 592) no Hoare annotation was computed. [2018-11-23 05:20:02,081 INFO L448 ceAbstractionStarter]: For program point L559(line 559) no Hoare annotation was computed. [2018-11-23 05:20:02,081 INFO L448 ceAbstractionStarter]: For program point L526(line 526) no Hoare annotation was computed. [2018-11-23 05:20:02,081 INFO L448 ceAbstractionStarter]: For program point L493(line 493) no Hoare annotation was computed. [2018-11-23 05:20:02,081 INFO L448 ceAbstractionStarter]: For program point L460(line 460) no Hoare annotation was computed. [2018-11-23 05:20:02,081 INFO L448 ceAbstractionStarter]: For program point L427(line 427) no Hoare annotation was computed. [2018-11-23 05:20:02,081 INFO L448 ceAbstractionStarter]: For program point L394(lines 394 413) no Hoare annotation was computed. [2018-11-23 05:20:02,081 INFO L448 ceAbstractionStarter]: For program point L361(lines 361 413) no Hoare annotation was computed. [2018-11-23 05:20:02,081 INFO L448 ceAbstractionStarter]: For program point L328(lines 328 413) no Hoare annotation was computed. [2018-11-23 05:20:02,081 INFO L448 ceAbstractionStarter]: For program point L262(lines 262 274) no Hoare annotation was computed. [2018-11-23 05:20:02,081 INFO L448 ceAbstractionStarter]: For program point L262-2(lines 262 274) no Hoare annotation was computed. [2018-11-23 05:20:02,081 INFO L448 ceAbstractionStarter]: For program point L130(lines 130 413) no Hoare annotation was computed. [2018-11-23 05:20:02,081 INFO L448 ceAbstractionStarter]: For program point L65(lines 65 413) no Hoare annotation was computed. [2018-11-23 05:20:02,081 INFO L448 ceAbstractionStarter]: For program point L594-1(lines 594 596) no Hoare annotation was computed. [2018-11-23 05:20:02,081 INFO L448 ceAbstractionStarter]: For program point L561-1(lines 29 598) no Hoare annotation was computed. [2018-11-23 05:20:02,082 INFO L448 ceAbstractionStarter]: For program point L528-1(lines 29 598) no Hoare annotation was computed. [2018-11-23 05:20:02,082 INFO L448 ceAbstractionStarter]: For program point L495-1(lines 29 598) no Hoare annotation was computed. [2018-11-23 05:20:02,082 INFO L448 ceAbstractionStarter]: For program point L462-1(lines 29 598) no Hoare annotation was computed. [2018-11-23 05:20:02,082 INFO L448 ceAbstractionStarter]: For program point L429-1(lines 29 598) no Hoare annotation was computed. [2018-11-23 05:20:02,082 INFO L448 ceAbstractionStarter]: For program point L297(lines 297 413) no Hoare annotation was computed. [2018-11-23 05:20:02,082 INFO L448 ceAbstractionStarter]: For program point L198(lines 198 413) no Hoare annotation was computed. [2018-11-23 05:20:02,082 INFO L448 ceAbstractionStarter]: For program point L165(lines 165 413) no Hoare annotation was computed. [2018-11-23 05:20:02,082 INFO L448 ceAbstractionStarter]: For program point L99(lines 99 413) no Hoare annotation was computed. [2018-11-23 05:20:02,082 INFO L448 ceAbstractionStarter]: For program point L595(line 595) no Hoare annotation was computed. [2018-11-23 05:20:02,082 INFO L448 ceAbstractionStarter]: For program point L562(line 562) no Hoare annotation was computed. [2018-11-23 05:20:02,082 INFO L448 ceAbstractionStarter]: For program point L529(line 529) no Hoare annotation was computed. [2018-11-23 05:20:02,082 INFO L448 ceAbstractionStarter]: For program point L496(line 496) no Hoare annotation was computed. [2018-11-23 05:20:02,082 INFO L448 ceAbstractionStarter]: For program point L463(line 463) no Hoare annotation was computed. [2018-11-23 05:20:02,082 INFO L448 ceAbstractionStarter]: For program point L430(line 430) no Hoare annotation was computed. [2018-11-23 05:20:02,082 INFO L448 ceAbstractionStarter]: For program point L331(lines 331 413) no Hoare annotation was computed. [2018-11-23 05:20:02,082 INFO L448 ceAbstractionStarter]: For program point L298(lines 298 307) no Hoare annotation was computed. [2018-11-23 05:20:02,083 INFO L448 ceAbstractionStarter]: For program point L232(lines 232 413) no Hoare annotation was computed. [2018-11-23 05:20:02,083 INFO L448 ceAbstractionStarter]: For program point L298-2(lines 298 307) no Hoare annotation was computed. [2018-11-23 05:20:02,083 INFO L448 ceAbstractionStarter]: For program point L398(lines 398 413) no Hoare annotation was computed. [2018-11-23 05:20:02,083 INFO L448 ceAbstractionStarter]: For program point L332(lines 332 335) no Hoare annotation was computed. [2018-11-23 05:20:02,083 INFO L448 ceAbstractionStarter]: For program point L332-2(lines 332 335) no Hoare annotation was computed. [2018-11-23 05:20:02,083 INFO L448 ceAbstractionStarter]: For program point L134(lines 134 413) no Hoare annotation was computed. [2018-11-23 05:20:02,083 INFO L448 ceAbstractionStarter]: For program point L35(lines 35 413) no Hoare annotation was computed. [2018-11-23 05:20:02,083 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-23 05:20:02,083 INFO L444 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (and (= ~a11~0 0) (= ~a25~0 0) (= ~a17~0 8) (= ~a19~0 1) (= ~a28~0 7) (= ~a21~0 1)) [2018-11-23 05:20:02,083 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-23 05:20:02,083 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-23 05:20:02,083 INFO L444 ceAbstractionStarter]: At program point mainENTRY(lines 600 617) the Hoare annotation is: (or (not (= 1 ~a21~0)) (not (= 7 |old(~a28~0)|)) (and (= ~a11~0 0) (= ~a25~0 0) (= ~a17~0 8) (= ~a19~0 |old(~a19~0)|) (= ~a28~0 |old(~a28~0)|)) (not (= 0 |old(~a11~0)|)) (not (= 1 |old(~a19~0)|)) (not (= 8 |old(~a17~0)|)) (not (= 0 |old(~a25~0)|))) [2018-11-23 05:20:02,084 INFO L444 ceAbstractionStarter]: At program point L606-2(lines 606 616) the Hoare annotation is: (let ((.cse3 (<= ~a17~0 8))) (let ((.cse5 (= 1 ~a25~0)) (.cse1 (= 1 ~a11~0)) (.cse0 (and .cse3 (or (not (= ~a19~0 ~a11~0)) (not (= 1 ~a19~0))))) (.cse2 (<= ~a28~0 10)) (.cse6 (<= ~a17~0 7)) (.cse4 (= ~a11~0 |old(~a11~0)|))) (or (not (= 1 ~a21~0)) (and .cse0 .cse1 .cse2) (and .cse1 (not (= 7 ~a28~0)) .cse2 .cse3) (not (= 0 |old(~a11~0)|)) (and .cse4 .cse5 .cse3) (and .cse1 .cse5 .cse2 .cse3) (and .cse6 .cse1 .cse2) (not (= 1 |old(~a19~0)|)) (not (= 8 |old(~a17~0)|)) (not (= 7 |old(~a28~0)|)) (and .cse0 .cse4 .cse2) (not (= 0 |old(~a25~0)|)) (and .cse6 .cse4)))) [2018-11-23 05:20:02,084 INFO L448 ceAbstractionStarter]: For program point L606-3(lines 600 617) no Hoare annotation was computed. [2018-11-23 05:20:02,084 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 600 617) no Hoare annotation was computed. [2018-11-23 05:20:02,084 INFO L444 ceAbstractionStarter]: At program point L614(line 614) the Hoare annotation is: (let ((.cse3 (<= ~a17~0 8))) (let ((.cse5 (= 1 ~a25~0)) (.cse1 (= 1 ~a11~0)) (.cse0 (and .cse3 (or (not (= ~a19~0 ~a11~0)) (not (= 1 ~a19~0))))) (.cse2 (<= ~a28~0 10)) (.cse6 (<= ~a17~0 7)) (.cse4 (= ~a11~0 |old(~a11~0)|))) (or (not (= 1 ~a21~0)) (and .cse0 .cse1 .cse2) (and .cse1 (not (= 7 ~a28~0)) .cse2 .cse3) (not (= 0 |old(~a11~0)|)) (and .cse4 .cse5 .cse3) (and .cse1 .cse5 .cse2 .cse3) (and .cse6 .cse1 .cse2) (not (= 1 |old(~a19~0)|)) (not (= 8 |old(~a17~0)|)) (not (= 7 |old(~a28~0)|)) (and .cse0 .cse4 .cse2) (not (= 0 |old(~a25~0)|)) (and .cse6 .cse4)))) [2018-11-23 05:20:02,084 INFO L448 ceAbstractionStarter]: For program point L614-1(line 614) no Hoare annotation was computed. [2018-11-23 05:20:02,084 INFO L448 ceAbstractionStarter]: For program point L611(line 611) no Hoare annotation was computed. [2018-11-23 05:20:02,100 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 05:20:02 BoogieIcfgContainer [2018-11-23 05:20:02,100 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-23 05:20:02,100 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-23 05:20:02,100 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-23 05:20:02,100 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-23 05:20:02,101 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 05:19:41" (3/4) ... [2018-11-23 05:20:02,103 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-23 05:20:02,111 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-23 05:20:02,111 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure calculate_output [2018-11-23 05:20:02,111 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-23 05:20:02,121 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2018-11-23 05:20:02,122 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-23 05:20:02,140 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((((!(1 == a21) || (((a17 <= 8 && (!(a19 == a11) || !(1 == a19))) && 1 == a11) && a28 <= 10)) || (((1 == a11 && !(7 == a28)) && a28 <= 10) && a17 <= 8)) || !(0 == \old(a11))) || ((a11 == \old(a11) && 1 == a25) && a17 <= 8)) || (((1 == a11 && 1 == a25) && a28 <= 10) && a17 <= 8)) || ((a17 <= 7 && 1 == a11) && a28 <= 10)) || !(1 == \old(a19))) || !(8 == \old(a17))) || !(7 == \old(a28))) || (((a17 <= 8 && (!(a19 == a11) || !(1 == a19))) && a11 == \old(a11)) && a28 <= 10)) || !(0 == \old(a25))) || (a17 <= 7 && a11 == \old(a11)) [2018-11-23 05:20:02,201 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_b7eeaadf-b7d3-4b8e-bd6c-f8a1e5fedcd7/bin-2019/utaipan/witness.graphml [2018-11-23 05:20:02,201 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-23 05:20:02,202 INFO L168 Benchmark]: Toolchain (without parser) took 22108.08 ms. Allocated memory was 1.0 GB in the beginning and 2.3 GB in the end (delta: 1.3 GB). Free memory was 954.4 MB in the beginning and 1.7 GB in the end (delta: -785.9 MB). Peak memory consumption was 490.2 MB. Max. memory is 11.5 GB. [2018-11-23 05:20:02,202 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 05:20:02,202 INFO L168 Benchmark]: CACSL2BoogieTranslator took 368.39 ms. Allocated memory is still 1.0 GB. Free memory was 954.4 MB in the beginning and 922.2 MB in the end (delta: 32.2 MB). Peak memory consumption was 32.2 MB. Max. memory is 11.5 GB. [2018-11-23 05:20:02,203 INFO L168 Benchmark]: Boogie Procedure Inliner took 71.01 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 162.0 MB). Free memory was 922.2 MB in the beginning and 1.2 GB in the end (delta: -233.4 MB). Peak memory consumption was 17.9 MB. Max. memory is 11.5 GB. [2018-11-23 05:20:02,203 INFO L168 Benchmark]: Boogie Preprocessor took 54.01 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 3.2 MB). Peak memory consumption was 3.2 MB. Max. memory is 11.5 GB. [2018-11-23 05:20:02,203 INFO L168 Benchmark]: RCFGBuilder took 810.77 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 101.2 MB). Peak memory consumption was 101.2 MB. Max. memory is 11.5 GB. [2018-11-23 05:20:02,203 INFO L168 Benchmark]: TraceAbstraction took 20699.73 ms. Allocated memory was 1.2 GB in the beginning and 2.3 GB in the end (delta: 1.1 GB). Free memory was 1.1 GB in the beginning and 1.7 GB in the end (delta: -689.4 MB). Peak memory consumption was 1.1 GB. Max. memory is 11.5 GB. [2018-11-23 05:20:02,204 INFO L168 Benchmark]: Witness Printer took 100.94 ms. Allocated memory is still 2.3 GB. Free memory was 1.7 GB in the beginning and 1.7 GB in the end (delta: 284.9 kB). Peak memory consumption was 284.9 kB. Max. memory is 11.5 GB. [2018-11-23 05:20:02,208 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 368.39 ms. Allocated memory is still 1.0 GB. Free memory was 954.4 MB in the beginning and 922.2 MB in the end (delta: 32.2 MB). Peak memory consumption was 32.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 71.01 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 162.0 MB). Free memory was 922.2 MB in the beginning and 1.2 GB in the end (delta: -233.4 MB). Peak memory consumption was 17.9 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 54.01 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 3.2 MB). Peak memory consumption was 3.2 MB. Max. memory is 11.5 GB. * RCFGBuilder took 810.77 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 101.2 MB). Peak memory consumption was 101.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 20699.73 ms. Allocated memory was 1.2 GB in the beginning and 2.3 GB in the end (delta: 1.1 GB). Free memory was 1.1 GB in the beginning and 1.7 GB in the end (delta: -689.4 MB). Peak memory consumption was 1.1 GB. Max. memory is 11.5 GB. * Witness Printer took 100.94 ms. Allocated memory is still 2.3 GB. Free memory was 1.7 GB in the beginning and 1.7 GB in the end (delta: 284.9 kB). Peak memory consumption was 284.9 kB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 439]: 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: 606]: Loop Invariant Derived loop invariant: (((((((((((!(1 == a21) || (((a17 <= 8 && (!(a19 == a11) || !(1 == a19))) && 1 == a11) && a28 <= 10)) || (((1 == a11 && !(7 == a28)) && a28 <= 10) && a17 <= 8)) || !(0 == \old(a11))) || ((a11 == \old(a11) && 1 == a25) && a17 <= 8)) || (((1 == a11 && 1 == a25) && a28 <= 10) && a17 <= 8)) || ((a17 <= 7 && 1 == a11) && a28 <= 10)) || !(1 == \old(a19))) || !(8 == \old(a17))) || !(7 == \old(a28))) || (((a17 <= 8 && (!(a19 == a11) || !(1 == a19))) && a11 == \old(a11)) && a28 <= 10)) || !(0 == \old(a25))) || (a17 <= 7 && a11 == \old(a11)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 236 locations, 1 error locations. SAFE Result, 20.6s OverallTime, 9 OverallIterations, 5 TraceHistogramMax, 13.9s AutomataDifference, 0.0s DeadEndRemovalTime, 1.7s HoareAnnotationTime, HoareTripleCheckerStatistics: 1523 SDtfs, 11282 SDslu, 1903 SDs, 0 SdLazy, 12390 SolverSat, 2952 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 7.5s Time, PredicateUnifierStatistics: 4 DeclaredPredicates, 1726 GetRequests, 1579 SyntacticMatches, 8 SemanticMatches, 139 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1008 ImplicationChecksByTransitivity, 1.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3956occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 1.5s AbstIntTime, 6 AbstIntIterations, 2 AbstIntStrong, 0.9966313934021018 AbsIntWeakeningRatio, 0.27346938775510204 AbsIntAvgWeakeningVarsNumRemoved, 26.261224489795918 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 9 MinimizatonAttempts, 738 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 148 PreInvPairs, 246 NumberOfFragments, 525 HoareAnnotationTreeSize, 148 FomulaSimplifications, 4336 FormulaSimplificationTreeSizeReduction, 0.4s HoareSimplificationTime, 7 FomulaSimplificationsInter, 13593 FormulaSimplificationTreeSizeReductionInter, 1.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 1991 NumberOfCodeBlocks, 1991 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 2626 ConstructedInterpolants, 0 QuantifiedInterpolants, 1383121 SizeOfPredicates, 2 NumberOfNonLiveVariables, 1847 ConjunctsInSsa, 16 ConjunctsInUnsatCore, 17 InterpolantComputations, 3 PerfectInterpolantSequences, 1511/1699 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...