./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem01_label17_true-unreach-call_false-termination.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5842f4b8 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_ab2beeff-4428-419b-81ae-53e19317c3c5/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_ab2beeff-4428-419b-81ae-53e19317c3c5/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_ab2beeff-4428-419b-81ae-53e19317c3c5/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_ab2beeff-4428-419b-81ae-53e19317c3c5/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem01_label17_true-unreach-call_false-termination.c -s /tmp/vcloud-vcloud-master/worker/working_dir_ab2beeff-4428-419b-81ae-53e19317c3c5/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_ab2beeff-4428-419b-81ae-53e19317c3c5/bin-2019/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash aac67f6dc6529e5dab098a5e1960c3e19b78df96 ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-5842f4b [2018-11-18 09:12:42,906 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 09:12:42,908 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 09:12:42,916 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 09:12:42,916 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 09:12:42,916 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 09:12:42,917 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 09:12:42,918 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 09:12:42,919 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 09:12:42,920 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 09:12:42,920 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 09:12:42,920 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 09:12:42,921 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 09:12:42,922 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 09:12:42,922 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 09:12:42,923 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 09:12:42,923 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 09:12:42,924 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 09:12:42,926 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 09:12:42,926 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 09:12:42,927 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 09:12:42,928 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 09:12:42,929 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 09:12:42,929 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 09:12:42,930 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 09:12:42,930 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 09:12:42,931 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 09:12:42,931 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 09:12:42,932 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 09:12:42,932 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 09:12:42,933 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 09:12:42,933 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 09:12:42,933 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 09:12:42,933 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 09:12:42,934 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 09:12:42,934 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 09:12:42,934 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_ab2beeff-4428-419b-81ae-53e19317c3c5/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-18 09:12:42,943 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 09:12:42,944 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 09:12:42,944 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 09:12:42,944 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-18 09:12:42,944 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-18 09:12:42,945 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-18 09:12:42,945 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-18 09:12:42,945 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-18 09:12:42,945 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-18 09:12:42,945 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-18 09:12:42,945 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-18 09:12:42,945 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-18 09:12:42,945 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-18 09:12:42,946 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 09:12:42,946 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 09:12:42,946 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 09:12:42,946 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 09:12:42,946 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 09:12:42,947 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 09:12:42,947 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 09:12:42,947 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 09:12:42,947 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 09:12:42,947 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 09:12:42,947 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 09:12:42,947 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 09:12:42,947 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 09:12:42,948 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 09:12:42,948 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 09:12:42,948 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 09:12:42,948 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 09:12:42,948 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 09:12:42,948 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 09:12:42,948 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 09:12:42,948 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-18 09:12:42,949 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 09:12:42,949 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-18 09:12:42,949 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-18 09:12:42,949 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_ab2beeff-4428-419b-81ae-53e19317c3c5/bin-2019/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> aac67f6dc6529e5dab098a5e1960c3e19b78df96 [2018-11-18 09:12:42,975 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 09:12:42,984 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 09:12:42,986 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 09:12:42,987 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 09:12:42,987 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 09:12:42,988 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_ab2beeff-4428-419b-81ae-53e19317c3c5/bin-2019/utaipan/../../sv-benchmarks/c/eca-rers2012/Problem01_label17_true-unreach-call_false-termination.c [2018-11-18 09:12:43,021 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_ab2beeff-4428-419b-81ae-53e19317c3c5/bin-2019/utaipan/data/3122eaa4a/cfc0b6db03f24a0b8c7e55b9669a8863/FLAGacfdd36ec [2018-11-18 09:12:43,475 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 09:12:43,476 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_ab2beeff-4428-419b-81ae-53e19317c3c5/sv-benchmarks/c/eca-rers2012/Problem01_label17_true-unreach-call_false-termination.c [2018-11-18 09:12:43,485 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_ab2beeff-4428-419b-81ae-53e19317c3c5/bin-2019/utaipan/data/3122eaa4a/cfc0b6db03f24a0b8c7e55b9669a8863/FLAGacfdd36ec [2018-11-18 09:12:43,496 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_ab2beeff-4428-419b-81ae-53e19317c3c5/bin-2019/utaipan/data/3122eaa4a/cfc0b6db03f24a0b8c7e55b9669a8863 [2018-11-18 09:12:43,499 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 09:12:43,500 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 09:12:43,501 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 09:12:43,501 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 09:12:43,504 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 09:12:43,504 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 09:12:43" (1/1) ... [2018-11-18 09:12:43,506 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@74d8243c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:12:43, skipping insertion in model container [2018-11-18 09:12:43,506 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 09:12:43" (1/1) ... [2018-11-18 09:12:43,514 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 09:12:43,548 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 09:12:43,781 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 09:12:43,785 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 09:12:43,854 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 09:12:43,866 INFO L195 MainTranslator]: Completed translation [2018-11-18 09:12:43,866 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:12:43 WrapperNode [2018-11-18 09:12:43,867 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 09:12:43,867 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 09:12:43,867 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 09:12:43,867 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 09:12:43,936 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:12:43" (1/1) ... [2018-11-18 09:12:43,948 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:12:43" (1/1) ... [2018-11-18 09:12:43,954 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 09:12:43,954 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 09:12:43,955 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 09:12:43,955 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 09:12:43,961 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:12:43" (1/1) ... [2018-11-18 09:12:43,961 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:12:43" (1/1) ... [2018-11-18 09:12:43,964 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:12:43" (1/1) ... [2018-11-18 09:12:43,964 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:12:43" (1/1) ... [2018-11-18 09:12:43,986 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:12:43" (1/1) ... [2018-11-18 09:12:43,994 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:12:43" (1/1) ... [2018-11-18 09:12:43,998 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:12:43" (1/1) ... [2018-11-18 09:12:44,003 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 09:12:44,003 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 09:12:44,004 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 09:12:44,004 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 09:12:44,004 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:12:43" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ab2beeff-4428-419b-81ae-53e19317c3c5/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 09:12:44,039 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-18 09:12:44,039 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 09:12:44,039 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 09:12:44,039 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-11-18 09:12:44,040 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-11-18 09:12:44,040 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 09:12:44,040 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 09:12:44,040 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 09:12:44,040 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 09:12:44,717 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 09:12:44,717 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 09:12:44 BoogieIcfgContainer [2018-11-18 09:12:44,718 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 09:12:44,718 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 09:12:44,718 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 09:12:44,720 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 09:12:44,720 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 09:12:43" (1/3) ... [2018-11-18 09:12:44,721 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b320823 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 09:12:44, skipping insertion in model container [2018-11-18 09:12:44,721 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:12:43" (2/3) ... [2018-11-18 09:12:44,721 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b320823 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 09:12:44, skipping insertion in model container [2018-11-18 09:12:44,721 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 09:12:44" (3/3) ... [2018-11-18 09:12:44,722 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem01_label17_true-unreach-call_false-termination.c [2018-11-18 09:12:44,728 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 09:12:44,733 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 09:12:44,742 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 09:12:44,764 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 09:12:44,764 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 09:12:44,764 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 09:12:44,764 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 09:12:44,764 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 09:12:44,764 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 09:12:44,764 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 09:12:44,765 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 09:12:44,782 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states. [2018-11-18 09:12:44,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2018-11-18 09:12:44,789 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 09:12:44,790 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 09:12:44,792 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 09:12:44,795 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:12:44,796 INFO L82 PathProgramCache]: Analyzing trace with hash -1707442147, now seen corresponding path program 1 times [2018-11-18 09:12:44,797 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 09:12:44,825 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:12:44,825 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:12:44,825 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:12:44,826 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 09:12:44,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:12:45,086 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 09:12:45,088 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 09:12:45,088 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 09:12:45,088 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 09:12:45,092 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 09:12:45,103 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 09:12:45,103 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 09:12:45,105 INFO L87 Difference]: Start difference. First operand 208 states. Second operand 3 states. [2018-11-18 09:12:45,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 09:12:45,652 INFO L93 Difference]: Finished difference Result 550 states and 941 transitions. [2018-11-18 09:12:45,652 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 09:12:45,653 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 123 [2018-11-18 09:12:45,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 09:12:45,665 INFO L225 Difference]: With dead ends: 550 [2018-11-18 09:12:45,665 INFO L226 Difference]: Without dead ends: 340 [2018-11-18 09:12:45,669 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 09:12:45,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states. [2018-11-18 09:12:45,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 340. [2018-11-18 09:12:45,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 340 states. [2018-11-18 09:12:45,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 340 states to 340 states and 571 transitions. [2018-11-18 09:12:45,706 INFO L78 Accepts]: Start accepts. Automaton has 340 states and 571 transitions. Word has length 123 [2018-11-18 09:12:45,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 09:12:45,707 INFO L480 AbstractCegarLoop]: Abstraction has 340 states and 571 transitions. [2018-11-18 09:12:45,707 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 09:12:45,707 INFO L276 IsEmpty]: Start isEmpty. Operand 340 states and 571 transitions. [2018-11-18 09:12:45,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2018-11-18 09:12:45,710 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 09:12:45,710 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 09:12:45,711 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 09:12:45,711 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:12:45,711 INFO L82 PathProgramCache]: Analyzing trace with hash -568294122, now seen corresponding path program 1 times [2018-11-18 09:12:45,711 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 09:12:45,712 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:12:45,712 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:12:45,713 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:12:45,713 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 09:12:45,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:12:45,835 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 09:12:45,835 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 09:12:45,836 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 09:12:45,836 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 09:12:45,837 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 09:12:45,838 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 09:12:45,838 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 09:12:45,838 INFO L87 Difference]: Start difference. First operand 340 states and 571 transitions. Second operand 3 states. [2018-11-18 09:12:46,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 09:12:46,178 INFO L93 Difference]: Finished difference Result 946 states and 1654 transitions. [2018-11-18 09:12:46,178 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 09:12:46,178 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 141 [2018-11-18 09:12:46,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 09:12:46,181 INFO L225 Difference]: With dead ends: 946 [2018-11-18 09:12:46,181 INFO L226 Difference]: Without dead ends: 612 [2018-11-18 09:12:46,183 INFO L604 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 [2018-11-18 09:12:46,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 612 states. [2018-11-18 09:12:46,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 612 to 612. [2018-11-18 09:12:46,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 612 states. [2018-11-18 09:12:46,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 612 states to 612 states and 987 transitions. [2018-11-18 09:12:46,202 INFO L78 Accepts]: Start accepts. Automaton has 612 states and 987 transitions. Word has length 141 [2018-11-18 09:12:46,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 09:12:46,203 INFO L480 AbstractCegarLoop]: Abstraction has 612 states and 987 transitions. [2018-11-18 09:12:46,203 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 09:12:46,203 INFO L276 IsEmpty]: Start isEmpty. Operand 612 states and 987 transitions. [2018-11-18 09:12:46,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2018-11-18 09:12:46,206 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 09:12:46,206 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 09:12:46,206 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 09:12:46,207 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:12:46,207 INFO L82 PathProgramCache]: Analyzing trace with hash -1913137078, now seen corresponding path program 1 times [2018-11-18 09:12:46,207 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 09:12:46,207 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:12:46,208 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:12:46,208 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:12:46,208 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 09:12:46,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:12:46,319 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 41 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 09:12:46,319 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 09:12:46,320 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-18 09:12:46,320 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 09:12:46,320 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-18 09:12:46,320 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-18 09:12:46,321 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-18 09:12:46,321 INFO L87 Difference]: Start difference. First operand 612 states and 987 transitions. Second operand 6 states. [2018-11-18 09:12:46,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 09:12:46,900 INFO L93 Difference]: Finished difference Result 1625 states and 2647 transitions. [2018-11-18 09:12:46,900 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-18 09:12:46,900 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 167 [2018-11-18 09:12:46,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 09:12:46,905 INFO L225 Difference]: With dead ends: 1625 [2018-11-18 09:12:46,905 INFO L226 Difference]: Without dead ends: 1019 [2018-11-18 09:12:46,907 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-11-18 09:12:46,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1019 states. [2018-11-18 09:12:46,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1019 to 1009. [2018-11-18 09:12:46,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1009 states. [2018-11-18 09:12:46,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1009 states to 1009 states and 1456 transitions. [2018-11-18 09:12:46,935 INFO L78 Accepts]: Start accepts. Automaton has 1009 states and 1456 transitions. Word has length 167 [2018-11-18 09:12:46,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 09:12:46,935 INFO L480 AbstractCegarLoop]: Abstraction has 1009 states and 1456 transitions. [2018-11-18 09:12:46,936 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-18 09:12:46,936 INFO L276 IsEmpty]: Start isEmpty. Operand 1009 states and 1456 transitions. [2018-11-18 09:12:46,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2018-11-18 09:12:46,939 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 09:12:46,939 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 09:12:46,939 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 09:12:46,939 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:12:46,939 INFO L82 PathProgramCache]: Analyzing trace with hash 1620857015, now seen corresponding path program 1 times [2018-11-18 09:12:46,939 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 09:12:46,940 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:12:46,940 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:12:46,940 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:12:46,941 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 09:12:46,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:12:47,074 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 60 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 09:12:47,075 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 09:12:47,075 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 09:12:47,076 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 180 with the following transitions: [2018-11-18 09:12:47,077 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [6], [10], [14], [17], [18], [22], [26], [30], [34], [38], [42], [46], [50], [54], [58], [62], [66], [70], [74], [78], [82], [86], [90], [94], [98], [102], [106], [110], [114], [118], [122], [126], [130], [134], [138], [142], [145], [146], [150], [154], [158], [162], [166], [170], [174], [178], [182], [186], [190], [194], [198], [202], [206], [210], [214], [218], [222], [226], [230], [234], [238], [242], [246], [250], [254], [258], [262], [266], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [465], [473], [481], [489], [497], [505], [513], [521], [529], [537], [545], [553], [561], [569], [577], [585], [593], [601], [609], [617], [621], [623], [757], [761], [765], [771], [775], [777], [782], [783], [784], [786], [787] [2018-11-18 09:12:47,107 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 09:12:47,107 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 09:12:47,651 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-18 09:12:47,652 INFO L272 AbstractInterpreter]: Visited 127 different actions 247 times. Merged at 4 different actions 4 times. Never widened. Performed 3380 root evaluator evaluations with a maximum evaluation depth of 3. Performed 3380 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 1 fixpoints after 1 different actions. Largest state had 42 variables. [2018-11-18 09:12:47,660 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:12:47,660 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-18 09:12:48,033 INFO L227 lantSequenceWeakener]: Weakened 176 states. On average, predicates are now at 81.93% of their original sizes. [2018-11-18 09:12:48,033 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-18 09:12:48,115 INFO L415 sIntCurrentIteration]: We unified 178 AI predicates to 178 [2018-11-18 09:12:48,115 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-18 09:12:48,116 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-18 09:12:48,116 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [6] total 14 [2018-11-18 09:12:48,116 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 09:12:48,117 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-18 09:12:48,117 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-18 09:12:48,117 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2018-11-18 09:12:48,117 INFO L87 Difference]: Start difference. First operand 1009 states and 1456 transitions. Second operand 10 states. [2018-11-18 09:12:52,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 09:12:52,761 INFO L93 Difference]: Finished difference Result 3127 states and 4449 transitions. [2018-11-18 09:12:52,761 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-11-18 09:12:52,761 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 179 [2018-11-18 09:12:52,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 09:12:52,771 INFO L225 Difference]: With dead ends: 3127 [2018-11-18 09:12:52,772 INFO L226 Difference]: Without dead ends: 2124 [2018-11-18 09:12:52,775 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 188 GetRequests, 170 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=99, Invalid=281, Unknown=0, NotChecked=0, Total=380 [2018-11-18 09:12:52,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2124 states. [2018-11-18 09:12:52,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2124 to 2090. [2018-11-18 09:12:52,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2090 states. [2018-11-18 09:12:52,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2090 states to 2090 states and 2657 transitions. [2018-11-18 09:12:52,820 INFO L78 Accepts]: Start accepts. Automaton has 2090 states and 2657 transitions. Word has length 179 [2018-11-18 09:12:52,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 09:12:52,820 INFO L480 AbstractCegarLoop]: Abstraction has 2090 states and 2657 transitions. [2018-11-18 09:12:52,820 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-18 09:12:52,820 INFO L276 IsEmpty]: Start isEmpty. Operand 2090 states and 2657 transitions. [2018-11-18 09:12:52,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2018-11-18 09:12:52,826 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 09:12:52,826 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 09:12:52,827 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 09:12:52,827 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:12:52,827 INFO L82 PathProgramCache]: Analyzing trace with hash -754119044, now seen corresponding path program 1 times [2018-11-18 09:12:52,827 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 09:12:52,828 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:12:52,828 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:12:52,828 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:12:52,828 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 09:12:52,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:12:52,984 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 72 proven. 15 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-11-18 09:12:52,985 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 09:12:52,985 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 09:12:52,985 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 193 with the following transitions: [2018-11-18 09:12:52,985 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [5], [6], [10], [14], [18], [22], [26], [30], [33], [34], [38], [42], [46], [50], [54], [58], [62], [66], [70], [74], [78], [82], [86], [90], [94], [98], [102], [106], [110], [114], [118], [122], [126], [130], [134], [138], [142], [145], [146], [150], [154], [158], [162], [166], [170], [174], [178], [182], [186], [190], [194], [198], [202], [206], [210], [214], [218], [222], [226], [230], [234], [238], [242], [246], [250], [254], [258], [262], [266], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [465], [473], [481], [489], [497], [505], [513], [521], [529], [537], [545], [553], [561], [569], [577], [585], [593], [601], [609], [617], [621], [623], [757], [761], [765], [771], [775], [777], [782], [783], [784], [786], [787] [2018-11-18 09:12:52,989 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 09:12:52,989 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 09:12:53,106 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-18 09:12:53,106 INFO L272 AbstractInterpreter]: Visited 128 different actions 250 times. Merged at 5 different actions 5 times. Never widened. Performed 3260 root evaluator evaluations with a maximum evaluation depth of 3. Performed 3260 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 1 fixpoints after 1 different actions. Largest state had 42 variables. [2018-11-18 09:12:53,111 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:12:53,112 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-18 09:12:53,256 INFO L227 lantSequenceWeakener]: Weakened 189 states. On average, predicates are now at 81.89% of their original sizes. [2018-11-18 09:12:53,256 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-18 09:12:53,309 INFO L415 sIntCurrentIteration]: We unified 191 AI predicates to 191 [2018-11-18 09:12:53,309 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-18 09:12:53,309 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-18 09:12:53,309 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [6] total 14 [2018-11-18 09:12:53,309 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 09:12:53,310 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-18 09:12:53,310 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-18 09:12:53,310 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2018-11-18 09:12:53,310 INFO L87 Difference]: Start difference. First operand 2090 states and 2657 transitions. Second operand 10 states. [2018-11-18 09:12:55,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 09:12:55,189 INFO L93 Difference]: Finished difference Result 4179 states and 5377 transitions. [2018-11-18 09:12:55,190 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-11-18 09:12:55,190 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 192 [2018-11-18 09:12:55,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 09:12:55,195 INFO L225 Difference]: With dead ends: 4179 [2018-11-18 09:12:55,195 INFO L226 Difference]: Without dead ends: 2231 [2018-11-18 09:12:55,198 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 199 GetRequests, 183 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=84, Invalid=222, Unknown=0, NotChecked=0, Total=306 [2018-11-18 09:12:55,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2231 states. [2018-11-18 09:12:55,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2231 to 2228. [2018-11-18 09:12:55,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2228 states. [2018-11-18 09:12:55,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2228 states to 2228 states and 2810 transitions. [2018-11-18 09:12:55,226 INFO L78 Accepts]: Start accepts. Automaton has 2228 states and 2810 transitions. Word has length 192 [2018-11-18 09:12:55,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 09:12:55,226 INFO L480 AbstractCegarLoop]: Abstraction has 2228 states and 2810 transitions. [2018-11-18 09:12:55,226 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-18 09:12:55,226 INFO L276 IsEmpty]: Start isEmpty. Operand 2228 states and 2810 transitions. [2018-11-18 09:12:55,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2018-11-18 09:12:55,230 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 09:12:55,231 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 09:12:55,231 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 09:12:55,231 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:12:55,231 INFO L82 PathProgramCache]: Analyzing trace with hash 694680239, now seen corresponding path program 1 times [2018-11-18 09:12:55,231 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 09:12:55,232 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:12:55,232 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:12:55,232 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:12:55,232 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 09:12:55,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:12:55,301 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 86 proven. 14 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2018-11-18 09:12:55,301 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 09:12:55,301 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 09:12:55,301 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 205 with the following transitions: [2018-11-18 09:12:55,302 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [5], [6], [10], [14], [17], [18], [22], [26], [30], [33], [34], [38], [42], [46], [50], [54], [58], [62], [66], [70], [74], [78], [82], [86], [90], [94], [98], [102], [106], [110], [114], [118], [122], [126], [130], [134], [138], [142], [145], [146], [150], [154], [158], [162], [166], [170], [174], [178], [182], [186], [190], [194], [198], [202], [206], [210], [214], [218], [222], [226], [230], [234], [238], [242], [246], [250], [254], [258], [262], [266], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [465], [473], [481], [489], [497], [505], [513], [521], [529], [537], [545], [553], [561], [569], [577], [585], [593], [601], [609], [617], [621], [623], [757], [761], [765], [771], [775], [777], [782], [783], [784], [786], [787] [2018-11-18 09:12:55,305 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 09:12:55,305 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 09:12:55,477 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-18 09:12:55,477 INFO L272 AbstractInterpreter]: Visited 130 different actions 384 times. Merged at 7 different actions 18 times. Never widened. Performed 5176 root evaluator evaluations with a maximum evaluation depth of 3. Performed 5176 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 4 fixpoints after 2 different actions. Largest state had 42 variables. [2018-11-18 09:12:55,490 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:12:55,491 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-18 09:12:55,491 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 09:12:55,491 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ab2beeff-4428-419b-81ae-53e19317c3c5/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 [2018-11-18 09:12:55,500 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:12:55,500 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-18 09:12:55,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:12:55,578 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 09:12:55,666 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 62 proven. 2 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2018-11-18 09:12:55,666 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 09:12:55,863 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 86 proven. 14 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2018-11-18 09:12:55,892 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-18 09:12:55,892 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2018-11-18 09:12:55,893 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-18 09:12:55,893 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-18 09:12:55,893 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-18 09:12:55,893 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2018-11-18 09:12:55,894 INFO L87 Difference]: Start difference. First operand 2228 states and 2810 transitions. Second operand 8 states. [2018-11-18 09:12:57,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 09:12:57,530 INFO L93 Difference]: Finished difference Result 7526 states and 10182 transitions. [2018-11-18 09:12:57,530 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2018-11-18 09:12:57,530 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 204 [2018-11-18 09:12:57,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 09:12:57,542 INFO L225 Difference]: With dead ends: 7526 [2018-11-18 09:12:57,543 INFO L226 Difference]: Without dead ends: 3715 [2018-11-18 09:12:57,559 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 453 GetRequests, 423 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 200 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=215, Invalid=777, Unknown=0, NotChecked=0, Total=992 [2018-11-18 09:12:57,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3715 states. [2018-11-18 09:12:57,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3715 to 3623. [2018-11-18 09:12:57,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3623 states. [2018-11-18 09:12:57,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3623 states to 3623 states and 4283 transitions. [2018-11-18 09:12:57,633 INFO L78 Accepts]: Start accepts. Automaton has 3623 states and 4283 transitions. Word has length 204 [2018-11-18 09:12:57,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 09:12:57,634 INFO L480 AbstractCegarLoop]: Abstraction has 3623 states and 4283 transitions. [2018-11-18 09:12:57,634 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-18 09:12:57,634 INFO L276 IsEmpty]: Start isEmpty. Operand 3623 states and 4283 transitions. [2018-11-18 09:12:57,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2018-11-18 09:12:57,644 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 09:12:57,644 INFO L375 BasicCegarLoop]: trace histogram [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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 09:12:57,644 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 09:12:57,644 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:12:57,644 INFO L82 PathProgramCache]: Analyzing trace with hash 1037869160, now seen corresponding path program 1 times [2018-11-18 09:12:57,644 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 09:12:57,645 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:12:57,645 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:12:57,645 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:12:57,645 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 09:12:57,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:12:57,804 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 112 proven. 15 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2018-11-18 09:12:57,804 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 09:12:57,804 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 09:12:57,804 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 226 with the following transitions: [2018-11-18 09:12:57,805 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [6], [10], [14], [18], [22], [26], [30], [33], [34], [38], [42], [46], [50], [54], [58], [62], [66], [70], [74], [78], [82], [86], [90], [94], [98], [102], [106], [110], [114], [118], [122], [126], [130], [134], [137], [138], [142], [145], [146], [150], [154], [158], [162], [166], [170], [174], [178], [182], [186], [190], [194], [198], [202], [206], [210], [214], [218], [222], [226], [230], [234], [238], [242], [246], [250], [254], [258], [262], [266], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [465], [473], [481], [489], [497], [505], [513], [521], [529], [537], [545], [553], [561], [569], [577], [585], [593], [601], [609], [617], [621], [623], [757], [761], [765], [771], [775], [777], [782], [783], [784], [786], [787] [2018-11-18 09:12:57,808 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 09:12:57,808 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 09:12:57,976 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-18 09:12:57,977 INFO L272 AbstractInterpreter]: Visited 128 different actions 250 times. Merged at 5 different actions 5 times. Never widened. Performed 3322 root evaluator evaluations with a maximum evaluation depth of 3. Performed 3322 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 1 fixpoints after 1 different actions. Largest state had 42 variables. [2018-11-18 09:12:57,978 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:12:57,978 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-18 09:12:58,225 INFO L227 lantSequenceWeakener]: Weakened 222 states. On average, predicates are now at 81.85% of their original sizes. [2018-11-18 09:12:58,225 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-18 09:12:58,280 INFO L415 sIntCurrentIteration]: We unified 224 AI predicates to 224 [2018-11-18 09:12:58,280 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-18 09:12:58,281 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-18 09:12:58,281 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [6] total 14 [2018-11-18 09:12:58,281 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 09:12:58,281 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-18 09:12:58,281 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-18 09:12:58,281 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2018-11-18 09:12:58,282 INFO L87 Difference]: Start difference. First operand 3623 states and 4283 transitions. Second operand 10 states. [2018-11-18 09:13:01,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 09:13:01,108 INFO L93 Difference]: Finished difference Result 7427 states and 8786 transitions. [2018-11-18 09:13:01,108 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-11-18 09:13:01,108 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 225 [2018-11-18 09:13:01,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 09:13:01,119 INFO L225 Difference]: With dead ends: 7427 [2018-11-18 09:13:01,119 INFO L226 Difference]: Without dead ends: 4084 [2018-11-18 09:13:01,126 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 233 GetRequests, 216 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=92, Invalid=250, Unknown=0, NotChecked=0, Total=342 [2018-11-18 09:13:01,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4084 states. [2018-11-18 09:13:01,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4084 to 4081. [2018-11-18 09:13:01,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4081 states. [2018-11-18 09:13:01,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4081 states to 4081 states and 4770 transitions. [2018-11-18 09:13:01,189 INFO L78 Accepts]: Start accepts. Automaton has 4081 states and 4770 transitions. Word has length 225 [2018-11-18 09:13:01,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 09:13:01,189 INFO L480 AbstractCegarLoop]: Abstraction has 4081 states and 4770 transitions. [2018-11-18 09:13:01,189 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-18 09:13:01,190 INFO L276 IsEmpty]: Start isEmpty. Operand 4081 states and 4770 transitions. [2018-11-18 09:13:01,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2018-11-18 09:13:01,199 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 09:13:01,199 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 09:13:01,200 INFO L423 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 09:13:01,200 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:13:01,200 INFO L82 PathProgramCache]: Analyzing trace with hash -765075483, now seen corresponding path program 1 times [2018-11-18 09:13:01,200 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 09:13:01,201 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:13:01,201 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:13:01,201 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:13:01,201 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 09:13:01,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:13:01,307 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 110 proven. 62 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2018-11-18 09:13:01,307 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 09:13:01,307 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 09:13:01,307 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 235 with the following transitions: [2018-11-18 09:13:01,307 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [5], [6], [10], [14], [18], [22], [26], [30], [33], [34], [38], [42], [46], [50], [54], [58], [62], [66], [70], [74], [78], [82], [86], [90], [94], [98], [102], [106], [110], [114], [118], [122], [126], [130], [134], [137], [138], [142], [145], [146], [150], [154], [158], [162], [166], [170], [174], [178], [182], [186], [190], [194], [198], [202], [206], [210], [214], [218], [222], [226], [230], [234], [238], [242], [246], [250], [254], [258], [262], [266], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [465], [473], [481], [489], [497], [505], [513], [521], [529], [537], [545], [553], [561], [569], [577], [585], [593], [601], [609], [617], [621], [623], [757], [761], [765], [771], [775], [777], [782], [783], [784], [786], [787] [2018-11-18 09:13:01,310 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 09:13:01,310 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 09:13:01,632 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-18 09:13:01,632 INFO L272 AbstractInterpreter]: Visited 130 different actions 522 times. Merged at 9 different actions 38 times. Widened at 1 different actions 1 times. Performed 7244 root evaluator evaluations with a maximum evaluation depth of 3. Performed 7244 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 8 fixpoints after 3 different actions. Largest state had 42 variables. [2018-11-18 09:13:01,636 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:13:01,636 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-18 09:13:01,636 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 09:13:01,636 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ab2beeff-4428-419b-81ae-53e19317c3c5/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 [2018-11-18 09:13:01,727 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:13:01,727 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-18 09:13:01,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:13:01,797 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 09:13:01,833 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 126 proven. 2 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2018-11-18 09:13:01,833 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 09:13:01,904 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 116 proven. 54 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2018-11-18 09:13:01,919 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-18 09:13:01,920 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 5, 5] total 13 [2018-11-18 09:13:01,920 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-18 09:13:01,920 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-11-18 09:13:01,920 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-11-18 09:13:01,921 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2018-11-18 09:13:01,921 INFO L87 Difference]: Start difference. First operand 4081 states and 4770 transitions. Second operand 11 states. [2018-11-18 09:13:02,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 09:13:02,765 INFO L93 Difference]: Finished difference Result 8606 states and 10172 transitions. [2018-11-18 09:13:02,766 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-11-18 09:13:02,766 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 234 [2018-11-18 09:13:02,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 09:13:02,778 INFO L225 Difference]: With dead ends: 8606 [2018-11-18 09:13:02,779 INFO L226 Difference]: Without dead ends: 5125 [2018-11-18 09:13:02,786 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 487 GetRequests, 469 SyntacticMatches, 2 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=91, Invalid=215, Unknown=0, NotChecked=0, Total=306 [2018-11-18 09:13:02,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5125 states. [2018-11-18 09:13:02,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5125 to 5112. [2018-11-18 09:13:02,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5112 states. [2018-11-18 09:13:02,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5112 states to 5112 states and 5892 transitions. [2018-11-18 09:13:02,868 INFO L78 Accepts]: Start accepts. Automaton has 5112 states and 5892 transitions. Word has length 234 [2018-11-18 09:13:02,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 09:13:02,868 INFO L480 AbstractCegarLoop]: Abstraction has 5112 states and 5892 transitions. [2018-11-18 09:13:02,868 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-11-18 09:13:02,868 INFO L276 IsEmpty]: Start isEmpty. Operand 5112 states and 5892 transitions. [2018-11-18 09:13:02,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2018-11-18 09:13:02,879 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 09:13:02,880 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 09:13:02,880 INFO L423 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 09:13:02,880 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:13:02,880 INFO L82 PathProgramCache]: Analyzing trace with hash 2147192563, now seen corresponding path program 2 times [2018-11-18 09:13:02,880 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 09:13:02,881 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:13:02,881 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:13:02,881 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:13:02,881 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 09:13:02,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:13:03,012 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 110 proven. 64 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2018-11-18 09:13:03,012 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 09:13:03,012 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 09:13:03,013 INFO L184 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2018-11-18 09:13:03,013 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-11-18 09:13:03,013 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 09:13:03,013 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ab2beeff-4428-419b-81ae-53e19317c3c5/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 [2018-11-18 09:13:03,024 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-11-18 09:13:03,024 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST2 (IT: FPandBP) [2018-11-18 09:13:03,065 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2018-11-18 09:13:03,065 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-18 09:13:03,070 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 09:13:03,105 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 108 proven. 0 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2018-11-18 09:13:03,105 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 09:13:03,153 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 108 proven. 0 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2018-11-18 09:13:03,169 INFO L312 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-11-18 09:13:03,169 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [9] total 10 [2018-11-18 09:13:03,169 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 09:13:03,169 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 09:13:03,169 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 09:13:03,170 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2018-11-18 09:13:03,170 INFO L87 Difference]: Start difference. First operand 5112 states and 5892 transitions. Second operand 3 states. [2018-11-18 09:13:03,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 09:13:03,470 INFO L93 Difference]: Finished difference Result 11564 states and 13554 transitions. [2018-11-18 09:13:03,471 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 09:13:03,471 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 234 [2018-11-18 09:13:03,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 09:13:03,471 INFO L225 Difference]: With dead ends: 11564 [2018-11-18 09:13:03,471 INFO L226 Difference]: Without dead ends: 0 [2018-11-18 09:13:03,489 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 477 GetRequests, 467 SyntacticMatches, 2 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2018-11-18 09:13:03,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-18 09:13:03,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-18 09:13:03,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-18 09:13:03,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-18 09:13:03,490 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 234 [2018-11-18 09:13:03,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 09:13:03,490 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 09:13:03,490 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 09:13:03,490 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-18 09:13:03,490 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 09:13:03,496 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-18 09:13:03,617 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:13:03,628 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:13:03,641 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:13:03,642 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:13:03,643 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:13:03,646 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:13:03,647 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:13:03,649 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:13:03,655 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:13:03,656 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:13:03,656 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:13:03,657 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:13:03,658 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:13:03,659 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:13:03,660 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:13:03,664 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:13:03,672 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:13:03,675 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:13:03,676 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:13:03,682 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:13:03,685 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:13:03,707 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:13:03,709 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:13:03,709 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:13:03,711 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:13:03,712 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:13:03,714 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:13:03,716 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:13:03,719 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:13:03,720 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:13:03,723 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:13:03,723 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:13:03,724 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:13:03,726 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:13:03,727 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:13:03,730 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:13:03,731 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:13:03,737 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:13:03,739 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:13:03,744 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:13:04,837 WARN L180 SmtUtils]: Spent 1.01 s on a formula simplification. DAG size of input: 224 DAG size of output: 104 [2018-11-18 09:13:05,071 WARN L180 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 60 [2018-11-18 09:13:05,249 WARN L180 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 63 [2018-11-18 09:13:05,251 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-18 09:13:05,252 INFO L421 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~a7~0 |old(~a7~0)|) (= |old(~a8~0)| ~a8~0) (= |old(~a20~0)| ~a20~0)) [2018-11-18 09:13:05,252 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-18 09:13:05,252 INFO L425 ceAbstractionStarter]: For program point L333(lines 333 390) no Hoare annotation was computed. [2018-11-18 09:13:05,252 INFO L425 ceAbstractionStarter]: For program point L102(lines 102 390) no Hoare annotation was computed. [2018-11-18 09:13:05,252 INFO L425 ceAbstractionStarter]: For program point L565-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 09:13:05,252 INFO L425 ceAbstractionStarter]: For program point L532-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 09:13:05,252 INFO L425 ceAbstractionStarter]: For program point L499-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 09:13:05,252 INFO L425 ceAbstractionStarter]: For program point L466-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 09:13:05,252 INFO L425 ceAbstractionStarter]: For program point L433-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 09:13:05,252 INFO L425 ceAbstractionStarter]: For program point L400-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 09:13:05,252 INFO L425 ceAbstractionStarter]: For program point L268(lines 268 390) no Hoare annotation was computed. [2018-11-18 09:13:05,252 INFO L425 ceAbstractionStarter]: For program point L136(lines 136 390) no Hoare annotation was computed. [2018-11-18 09:13:05,252 INFO L425 ceAbstractionStarter]: For program point L566(line 566) no Hoare annotation was computed. [2018-11-18 09:13:05,253 INFO L425 ceAbstractionStarter]: For program point L533(line 533) no Hoare annotation was computed. [2018-11-18 09:13:05,253 INFO L425 ceAbstractionStarter]: For program point L500(line 500) no Hoare annotation was computed. [2018-11-18 09:13:05,253 INFO L425 ceAbstractionStarter]: For program point L467(line 467) no Hoare annotation was computed. [2018-11-18 09:13:05,253 INFO L425 ceAbstractionStarter]: For program point L434(line 434) no Hoare annotation was computed. [2018-11-18 09:13:05,253 INFO L425 ceAbstractionStarter]: For program point L401(line 401) no Hoare annotation was computed. [2018-11-18 09:13:05,253 INFO L425 ceAbstractionStarter]: For program point L203(lines 203 390) no Hoare annotation was computed. [2018-11-18 09:13:05,253 INFO L425 ceAbstractionStarter]: For program point L72(lines 72 390) no Hoare annotation was computed. [2018-11-18 09:13:05,253 INFO L425 ceAbstractionStarter]: For program point L568-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 09:13:05,253 INFO L425 ceAbstractionStarter]: For program point L535-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 09:13:05,253 INFO L425 ceAbstractionStarter]: For program point L502-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 09:13:05,253 INFO L425 ceAbstractionStarter]: For program point L469-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 09:13:05,253 INFO L425 ceAbstractionStarter]: For program point L436-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 09:13:05,253 INFO L425 ceAbstractionStarter]: For program point L403-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 09:13:05,253 INFO L425 ceAbstractionStarter]: For program point L337(lines 337 390) no Hoare annotation was computed. [2018-11-18 09:13:05,253 INFO L425 ceAbstractionStarter]: For program point L238(lines 238 390) no Hoare annotation was computed. [2018-11-18 09:13:05,253 INFO L425 ceAbstractionStarter]: For program point L569(line 569) no Hoare annotation was computed. [2018-11-18 09:13:05,253 INFO L425 ceAbstractionStarter]: For program point L536(line 536) no Hoare annotation was computed. [2018-11-18 09:13:05,254 INFO L425 ceAbstractionStarter]: For program point L503(line 503) no Hoare annotation was computed. [2018-11-18 09:13:05,254 INFO L425 ceAbstractionStarter]: For program point L470(line 470) no Hoare annotation was computed. [2018-11-18 09:13:05,254 INFO L425 ceAbstractionStarter]: For program point L437(line 437) no Hoare annotation was computed. [2018-11-18 09:13:05,254 INFO L425 ceAbstractionStarter]: For program point L404(line 404) no Hoare annotation was computed. [2018-11-18 09:13:05,254 INFO L425 ceAbstractionStarter]: For program point L173(lines 173 390) no Hoare annotation was computed. [2018-11-18 09:13:05,254 INFO L425 ceAbstractionStarter]: For program point L140(lines 140 390) no Hoare annotation was computed. [2018-11-18 09:13:05,254 INFO L425 ceAbstractionStarter]: For program point L372(lines 372 390) no Hoare annotation was computed. [2018-11-18 09:13:05,254 INFO L425 ceAbstractionStarter]: For program point L306(lines 306 390) no Hoare annotation was computed. [2018-11-18 09:13:05,254 INFO L425 ceAbstractionStarter]: For program point L273(lines 273 390) no Hoare annotation was computed. [2018-11-18 09:13:05,254 INFO L425 ceAbstractionStarter]: For program point L108(lines 108 390) no Hoare annotation was computed. [2018-11-18 09:13:05,254 INFO L425 ceAbstractionStarter]: For program point L571-1(lines 571 573) no Hoare annotation was computed. [2018-11-18 09:13:05,254 INFO L425 ceAbstractionStarter]: For program point L538-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 09:13:05,254 INFO L425 ceAbstractionStarter]: For program point L505-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 09:13:05,254 INFO L425 ceAbstractionStarter]: For program point L472-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 09:13:05,254 INFO L425 ceAbstractionStarter]: For program point L439-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 09:13:05,254 INFO L425 ceAbstractionStarter]: For program point L406-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 09:13:05,255 INFO L425 ceAbstractionStarter]: For program point L208(lines 208 390) no Hoare annotation was computed. [2018-11-18 09:13:05,255 INFO L425 ceAbstractionStarter]: For program point L43(lines 43 390) no Hoare annotation was computed. [2018-11-18 09:13:05,255 INFO L425 ceAbstractionStarter]: For program point L572(line 572) no Hoare annotation was computed. [2018-11-18 09:13:05,255 INFO L425 ceAbstractionStarter]: For program point L539(line 539) no Hoare annotation was computed. [2018-11-18 09:13:05,255 INFO L425 ceAbstractionStarter]: For program point L506(line 506) no Hoare annotation was computed. [2018-11-18 09:13:05,255 INFO L425 ceAbstractionStarter]: For program point L473(line 473) no Hoare annotation was computed. [2018-11-18 09:13:05,255 INFO L425 ceAbstractionStarter]: For program point L440(line 440) no Hoare annotation was computed. [2018-11-18 09:13:05,255 INFO L425 ceAbstractionStarter]: For program point L407(line 407) no Hoare annotation was computed. [2018-11-18 09:13:05,255 INFO L425 ceAbstractionStarter]: For program point L144(lines 144 390) no Hoare annotation was computed. [2018-11-18 09:13:05,255 INFO L425 ceAbstractionStarter]: For program point L541-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 09:13:05,255 INFO L425 ceAbstractionStarter]: For program point L508-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 09:13:05,255 INFO L425 ceAbstractionStarter]: For program point L475-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 09:13:05,255 INFO L425 ceAbstractionStarter]: For program point L442-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 09:13:05,255 INFO L425 ceAbstractionStarter]: For program point L409-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 09:13:05,255 INFO L425 ceAbstractionStarter]: For program point L178(lines 178 390) no Hoare annotation was computed. [2018-11-18 09:13:05,255 INFO L425 ceAbstractionStarter]: For program point L542(line 542) no Hoare annotation was computed. [2018-11-18 09:13:05,256 INFO L425 ceAbstractionStarter]: For program point L509(line 509) no Hoare annotation was computed. [2018-11-18 09:13:05,256 INFO L425 ceAbstractionStarter]: For program point L476(line 476) no Hoare annotation was computed. [2018-11-18 09:13:05,256 INFO L425 ceAbstractionStarter]: For program point L443(line 443) no Hoare annotation was computed. [2018-11-18 09:13:05,256 INFO L425 ceAbstractionStarter]: For program point L410(line 410) no Hoare annotation was computed. [2018-11-18 09:13:05,256 INFO L425 ceAbstractionStarter]: For program point L377(lines 377 390) no Hoare annotation was computed. [2018-11-18 09:13:05,256 INFO L425 ceAbstractionStarter]: For program point L278(lines 278 390) no Hoare annotation was computed. [2018-11-18 09:13:05,256 INFO L425 ceAbstractionStarter]: For program point L245(lines 245 390) no Hoare annotation was computed. [2018-11-18 09:13:05,256 INFO L425 ceAbstractionStarter]: For program point L80(lines 80 390) no Hoare annotation was computed. [2018-11-18 09:13:05,256 INFO L425 ceAbstractionStarter]: For program point L345(lines 345 390) no Hoare annotation was computed. [2018-11-18 09:13:05,256 INFO L425 ceAbstractionStarter]: For program point L312(lines 312 390) no Hoare annotation was computed. [2018-11-18 09:13:05,256 INFO L425 ceAbstractionStarter]: For program point L114(lines 114 390) no Hoare annotation was computed. [2018-11-18 09:13:05,256 INFO L425 ceAbstractionStarter]: For program point L544-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 09:13:05,256 INFO L425 ceAbstractionStarter]: For program point L511-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 09:13:05,256 INFO L425 ceAbstractionStarter]: For program point L478-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 09:13:05,256 INFO L425 ceAbstractionStarter]: For program point L445-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 09:13:05,256 INFO L425 ceAbstractionStarter]: For program point L412-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 09:13:05,256 INFO L425 ceAbstractionStarter]: For program point L214(lines 214 390) no Hoare annotation was computed. [2018-11-18 09:13:05,257 INFO L425 ceAbstractionStarter]: For program point L148(lines 148 390) no Hoare annotation was computed. [2018-11-18 09:13:05,257 INFO L425 ceAbstractionStarter]: For program point L49(lines 49 390) no Hoare annotation was computed. [2018-11-18 09:13:05,257 INFO L425 ceAbstractionStarter]: For program point L545(line 545) no Hoare annotation was computed. [2018-11-18 09:13:05,257 INFO L425 ceAbstractionStarter]: For program point L512(line 512) no Hoare annotation was computed. [2018-11-18 09:13:05,257 INFO L425 ceAbstractionStarter]: For program point L479(line 479) no Hoare annotation was computed. [2018-11-18 09:13:05,257 INFO L425 ceAbstractionStarter]: For program point L446(line 446) no Hoare annotation was computed. [2018-11-18 09:13:05,257 INFO L425 ceAbstractionStarter]: For program point L413(line 413) no Hoare annotation was computed. [2018-11-18 09:13:05,257 INFO L425 ceAbstractionStarter]: For program point L84(lines 84 390) no Hoare annotation was computed. [2018-11-18 09:13:05,257 INFO L425 ceAbstractionStarter]: For program point calculate_outputFINAL(lines 30 575) no Hoare annotation was computed. [2018-11-18 09:13:05,257 INFO L425 ceAbstractionStarter]: For program point calculate_outputEXIT(lines 30 575) no Hoare annotation was computed. [2018-11-18 09:13:05,257 INFO L425 ceAbstractionStarter]: For program point L547-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 09:13:05,257 INFO L425 ceAbstractionStarter]: For program point L514-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 09:13:05,257 INFO L425 ceAbstractionStarter]: For program point L481-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 09:13:05,257 INFO L425 ceAbstractionStarter]: For program point L448-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 09:13:05,257 INFO L425 ceAbstractionStarter]: For program point L382(lines 382 390) no Hoare annotation was computed. [2018-11-18 09:13:05,257 INFO L425 ceAbstractionStarter]: For program point L415-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 09:13:05,257 INFO L425 ceAbstractionStarter]: For program point L316(lines 316 390) no Hoare annotation was computed. [2018-11-18 09:13:05,258 INFO L425 ceAbstractionStarter]: For program point L250(lines 250 390) no Hoare annotation was computed. [2018-11-18 09:13:05,258 INFO L425 ceAbstractionStarter]: For program point L548(line 548) no Hoare annotation was computed. [2018-11-18 09:13:05,258 INFO L425 ceAbstractionStarter]: For program point L515(line 515) no Hoare annotation was computed. [2018-11-18 09:13:05,258 INFO L425 ceAbstractionStarter]: For program point L482(line 482) no Hoare annotation was computed. [2018-11-18 09:13:05,258 INFO L425 ceAbstractionStarter]: For program point L449(line 449) no Hoare annotation was computed. [2018-11-18 09:13:05,258 INFO L425 ceAbstractionStarter]: For program point L416(line 416) no Hoare annotation was computed. [2018-11-18 09:13:05,258 INFO L425 ceAbstractionStarter]: For program point L218(lines 218 390) no Hoare annotation was computed. [2018-11-18 09:13:05,258 INFO L425 ceAbstractionStarter]: For program point L152(lines 152 390) no Hoare annotation was computed. [2018-11-18 09:13:05,258 INFO L425 ceAbstractionStarter]: For program point L119(lines 119 390) no Hoare annotation was computed. [2018-11-18 09:13:05,258 INFO L425 ceAbstractionStarter]: For program point L318(lines 318 390) no Hoare annotation was computed. [2018-11-18 09:13:05,258 INFO L425 ceAbstractionStarter]: For program point L186(lines 186 390) no Hoare annotation was computed. [2018-11-18 09:13:05,258 INFO L425 ceAbstractionStarter]: For program point L54(lines 54 390) no Hoare annotation was computed. [2018-11-18 09:13:05,258 INFO L425 ceAbstractionStarter]: For program point L550-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 09:13:05,258 INFO L425 ceAbstractionStarter]: For program point L517-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 09:13:05,258 INFO L425 ceAbstractionStarter]: For program point L484-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 09:13:05,258 INFO L425 ceAbstractionStarter]: For program point L451-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 09:13:05,259 INFO L425 ceAbstractionStarter]: For program point L418-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 09:13:05,259 INFO L425 ceAbstractionStarter]: For program point L286(lines 286 390) no Hoare annotation was computed. [2018-11-18 09:13:05,259 INFO L425 ceAbstractionStarter]: For program point L551(line 551) no Hoare annotation was computed. [2018-11-18 09:13:05,259 INFO L425 ceAbstractionStarter]: For program point L518(line 518) no Hoare annotation was computed. [2018-11-18 09:13:05,259 INFO L425 ceAbstractionStarter]: For program point L485(line 485) no Hoare annotation was computed. [2018-11-18 09:13:05,259 INFO L425 ceAbstractionStarter]: For program point L452(line 452) no Hoare annotation was computed. [2018-11-18 09:13:05,259 INFO L425 ceAbstractionStarter]: For program point L419(line 419) no Hoare annotation was computed. [2018-11-18 09:13:05,259 INFO L425 ceAbstractionStarter]: For program point L353(lines 353 390) no Hoare annotation was computed. [2018-11-18 09:13:05,259 INFO L425 ceAbstractionStarter]: For program point L189(lines 189 390) no Hoare annotation was computed. [2018-11-18 09:13:05,259 INFO L425 ceAbstractionStarter]: For program point L553-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 09:13:05,259 INFO L425 ceAbstractionStarter]: For program point L520-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 09:13:05,259 INFO L425 ceAbstractionStarter]: For program point L487-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 09:13:05,259 INFO L425 ceAbstractionStarter]: For program point L454-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 09:13:05,259 INFO L425 ceAbstractionStarter]: For program point L421-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 09:13:05,259 INFO L425 ceAbstractionStarter]: For program point L355(lines 355 390) no Hoare annotation was computed. [2018-11-18 09:13:05,259 INFO L425 ceAbstractionStarter]: For program point L256(lines 256 390) no Hoare annotation was computed. [2018-11-18 09:13:05,260 INFO L425 ceAbstractionStarter]: For program point L223(lines 223 390) no Hoare annotation was computed. [2018-11-18 09:13:05,260 INFO L425 ceAbstractionStarter]: For program point L124(lines 124 390) no Hoare annotation was computed. [2018-11-18 09:13:05,260 INFO L425 ceAbstractionStarter]: For program point L554(line 554) no Hoare annotation was computed. [2018-11-18 09:13:05,260 INFO L425 ceAbstractionStarter]: For program point L521(line 521) no Hoare annotation was computed. [2018-11-18 09:13:05,260 INFO L425 ceAbstractionStarter]: For program point L488(line 488) no Hoare annotation was computed. [2018-11-18 09:13:05,260 INFO L425 ceAbstractionStarter]: For program point L455(line 455) no Hoare annotation was computed. [2018-11-18 09:13:05,260 INFO L425 ceAbstractionStarter]: For program point L422(line 422) no Hoare annotation was computed. [2018-11-18 09:13:05,260 INFO L425 ceAbstractionStarter]: For program point L92(lines 92 390) no Hoare annotation was computed. [2018-11-18 09:13:05,260 INFO L421 ceAbstractionStarter]: At program point calculate_outputENTRY(lines 30 575) the Hoare annotation is: (let ((.cse17 (= |old(~a20~0)| ~a20~0)) (.cse15 (= ~a7~0 |old(~a7~0)|)) (.cse16 (= |old(~a8~0)| ~a8~0))) (let ((.cse7 (not (= 5 |old(~a16~0)|))) (.cse2 (= ~a16~0 5)) (.cse13 (= 0 |old(~a16~0)|)) (.cse10 (not (= ~a16~0 0))) (.cse0 (= ~a17~0 1)) (.cse1 (= ~a21~0 1)) (.cse9 (not (= 1 |old(~a17~0)|))) (.cse21 (and .cse15 .cse16)) (.cse20 (and .cse15 .cse16 .cse17 (<= ~a17~0 0))) (.cse11 (< 0 |old(~a17~0)|)) (.cse3 (= |calculate_output_#in~input| 0)) (.cse4 (not (= 0 |old(~a7~0)|))) (.cse5 (not (= 1 |old(~a21~0)|))) (.cse12 (not (= 1 |old(~a20~0)|))) (.cse6 (not (= 15 |old(~a8~0)|))) (.cse8 (not (= 8 ~a12~0))) (.cse14 (not (= 1 |old(~a7~0)|))) (.cse23 (and (= 1 ~a7~0) .cse16)) (.cse18 (< |old(~a8~0)| 15)) (.cse22 (< 13 |old(~a8~0)|)) (.cse19 (< 0 |old(~a20~0)|))) (and (or (and .cse0 .cse1 .cse2) .cse3 (or .cse4 .cse5 .cse6 (not (= 0 |old(~a20~0)|)) .cse7 .cse8 .cse9)) (or .cse4 .cse5 (and .cse10 .cse1) .cse8 .cse11 .cse3 .cse12 .cse6 .cse13) (or .cse4 .cse5 .cse8 .cse3 .cse9 .cse12 .cse6 .cse7 .cse2) (or (or .cse5 .cse12 (not (= 4 |old(~a16~0)|)) (not (= 13 |old(~a8~0)|))) (= ~a16~0 4) .cse8 .cse14 .cse3 .cse9) (or (and .cse15 .cse16 .cse17) .cse18 .cse19) (or .cse12 .cse11 .cse20) (or .cse5 .cse12 .cse13 (and .cse10 .cse0 .cse1 .cse15 .cse16 (= ~a20~0 1)) .cse8 .cse3 (= 0 |old(~a8~0)|) .cse9) (or .cse12 .cse17 .cse18) (or .cse12 .cse21 .cse18) (or (= |old(~a7~0)| 1) .cse22 .cse21) (or .cse22 .cse12 (= 1 ~a20~0)) (or .cse22 .cse23 .cse14 .cse19) (or .cse20 .cse11 .cse19) (or .cse22 .cse12 .cse14 .cse23) (or (and (= ~a17~0 0) (= ~a16~0 6)) .cse3 (or (not (= 6 |old(~a16~0)|)) .cse4 .cse5 .cse12 .cse6 (not (= 0 |old(~a17~0)|)) .cse8)) (or .cse14 .cse23 .cse18) (or .cse22 .cse17 .cse19)))) [2018-11-18 09:13:05,260 INFO L425 ceAbstractionStarter]: For program point L324(lines 324 390) no Hoare annotation was computed. [2018-11-18 09:13:05,260 INFO L425 ceAbstractionStarter]: For program point L556-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 09:13:05,261 INFO L425 ceAbstractionStarter]: For program point L523-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 09:13:05,261 INFO L425 ceAbstractionStarter]: For program point L490-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 09:13:05,261 INFO L425 ceAbstractionStarter]: For program point L457-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 09:13:05,261 INFO L425 ceAbstractionStarter]: For program point L391(lines 391 393) no Hoare annotation was computed. [2018-11-18 09:13:05,261 INFO L425 ceAbstractionStarter]: For program point L424-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 09:13:05,261 INFO L425 ceAbstractionStarter]: For program point L391-2(lines 30 575) no Hoare annotation was computed. [2018-11-18 09:13:05,261 INFO L425 ceAbstractionStarter]: For program point L292(lines 292 390) no Hoare annotation was computed. [2018-11-18 09:13:05,261 INFO L425 ceAbstractionStarter]: For program point L160(lines 160 390) no Hoare annotation was computed. [2018-11-18 09:13:05,261 INFO L425 ceAbstractionStarter]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 524) no Hoare annotation was computed. [2018-11-18 09:13:05,261 INFO L425 ceAbstractionStarter]: For program point L557(line 557) no Hoare annotation was computed. [2018-11-18 09:13:05,261 INFO L425 ceAbstractionStarter]: For program point L524(line 524) no Hoare annotation was computed. [2018-11-18 09:13:05,261 INFO L425 ceAbstractionStarter]: For program point L491(line 491) no Hoare annotation was computed. [2018-11-18 09:13:05,261 INFO L425 ceAbstractionStarter]: For program point L458(line 458) no Hoare annotation was computed. [2018-11-18 09:13:05,261 INFO L425 ceAbstractionStarter]: For program point L425(line 425) no Hoare annotation was computed. [2018-11-18 09:13:05,262 INFO L425 ceAbstractionStarter]: For program point L392(line 392) no Hoare annotation was computed. [2018-11-18 09:13:05,262 INFO L425 ceAbstractionStarter]: For program point L194(lines 194 390) no Hoare annotation was computed. [2018-11-18 09:13:05,262 INFO L425 ceAbstractionStarter]: For program point L62(lines 62 390) no Hoare annotation was computed. [2018-11-18 09:13:05,262 INFO L425 ceAbstractionStarter]: For program point L261(lines 261 390) no Hoare annotation was computed. [2018-11-18 09:13:05,262 INFO L425 ceAbstractionStarter]: For program point L129(lines 129 390) no Hoare annotation was computed. [2018-11-18 09:13:05,262 INFO L425 ceAbstractionStarter]: For program point L559-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 09:13:05,262 INFO L425 ceAbstractionStarter]: For program point L526-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 09:13:05,262 INFO L425 ceAbstractionStarter]: For program point L493-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 09:13:05,262 INFO L425 ceAbstractionStarter]: For program point L460-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 09:13:05,262 INFO L425 ceAbstractionStarter]: For program point L427-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 09:13:05,262 INFO L425 ceAbstractionStarter]: For program point L361(lines 361 390) no Hoare annotation was computed. [2018-11-18 09:13:05,262 INFO L425 ceAbstractionStarter]: For program point L394-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 09:13:05,262 INFO L425 ceAbstractionStarter]: For program point L97(lines 97 390) no Hoare annotation was computed. [2018-11-18 09:13:05,262 INFO L425 ceAbstractionStarter]: For program point L31(lines 31 390) no Hoare annotation was computed. [2018-11-18 09:13:05,262 INFO L425 ceAbstractionStarter]: For program point L560(line 560) no Hoare annotation was computed. [2018-11-18 09:13:05,262 INFO L425 ceAbstractionStarter]: For program point L527(line 527) no Hoare annotation was computed. [2018-11-18 09:13:05,262 INFO L425 ceAbstractionStarter]: For program point L494(line 494) no Hoare annotation was computed. [2018-11-18 09:13:05,263 INFO L425 ceAbstractionStarter]: For program point L461(line 461) no Hoare annotation was computed. [2018-11-18 09:13:05,263 INFO L425 ceAbstractionStarter]: For program point L428(line 428) no Hoare annotation was computed. [2018-11-18 09:13:05,263 INFO L425 ceAbstractionStarter]: For program point L395(line 395) no Hoare annotation was computed. [2018-11-18 09:13:05,263 INFO L425 ceAbstractionStarter]: For program point L329(lines 329 390) no Hoare annotation was computed. [2018-11-18 09:13:05,263 INFO L425 ceAbstractionStarter]: For program point L197(lines 197 390) no Hoare annotation was computed. [2018-11-18 09:13:05,263 INFO L425 ceAbstractionStarter]: For program point L65(lines 65 390) no Hoare annotation was computed. [2018-11-18 09:13:05,263 INFO L425 ceAbstractionStarter]: For program point L363(lines 363 390) no Hoare annotation was computed. [2018-11-18 09:13:05,263 INFO L425 ceAbstractionStarter]: For program point L231(lines 231 390) no Hoare annotation was computed. [2018-11-18 09:13:05,263 INFO L425 ceAbstractionStarter]: For program point L165(lines 165 390) no Hoare annotation was computed. [2018-11-18 09:13:05,263 INFO L425 ceAbstractionStarter]: For program point L562-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 09:13:05,263 INFO L425 ceAbstractionStarter]: For program point L529-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 09:13:05,263 INFO L425 ceAbstractionStarter]: For program point L496-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 09:13:05,263 INFO L425 ceAbstractionStarter]: For program point L463-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 09:13:05,263 INFO L425 ceAbstractionStarter]: For program point L430-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 09:13:05,263 INFO L425 ceAbstractionStarter]: For program point L397-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 09:13:05,263 INFO L425 ceAbstractionStarter]: For program point L265(lines 265 390) no Hoare annotation was computed. [2018-11-18 09:13:05,263 INFO L425 ceAbstractionStarter]: For program point L563(line 563) no Hoare annotation was computed. [2018-11-18 09:13:05,264 INFO L425 ceAbstractionStarter]: For program point L530(line 530) no Hoare annotation was computed. [2018-11-18 09:13:05,264 INFO L425 ceAbstractionStarter]: For program point L497(line 497) no Hoare annotation was computed. [2018-11-18 09:13:05,264 INFO L425 ceAbstractionStarter]: For program point L464(line 464) no Hoare annotation was computed. [2018-11-18 09:13:05,264 INFO L425 ceAbstractionStarter]: For program point L431(line 431) no Hoare annotation was computed. [2018-11-18 09:13:05,264 INFO L425 ceAbstractionStarter]: For program point L398(line 398) no Hoare annotation was computed. [2018-11-18 09:13:05,264 INFO L425 ceAbstractionStarter]: For program point L365(lines 365 390) no Hoare annotation was computed. [2018-11-18 09:13:05,264 INFO L425 ceAbstractionStarter]: For program point L299(lines 299 390) no Hoare annotation was computed. [2018-11-18 09:13:05,264 INFO L425 ceAbstractionStarter]: For program point L35(lines 35 390) no Hoare annotation was computed. [2018-11-18 09:13:05,264 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-18 09:13:05,264 INFO L421 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (and (= ~a7~0 0) (= ~a8~0 15) (= ~a17~0 1) (= ~a12~0 8) (= ~a21~0 1) (= ~a20~0 1) (= ~a16~0 5)) [2018-11-18 09:13:05,264 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-18 09:13:05,264 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-18 09:13:05,264 INFO L421 ceAbstractionStarter]: At program point mainENTRY(lines 577 594) the Hoare annotation is: (or (not (= 0 |old(~a7~0)|)) (not (= 1 |old(~a21~0)|)) (not (= 1 |old(~a20~0)|)) (not (= 15 |old(~a8~0)|)) (not (= 5 |old(~a16~0)|)) (not (= 8 ~a12~0)) (and (= ~a17~0 1) (= ~a21~0 1) (= ~a7~0 |old(~a7~0)|) (= |old(~a8~0)| ~a8~0) (= ~a20~0 1) (= ~a16~0 5)) (not (= 1 |old(~a17~0)|))) [2018-11-18 09:13:05,264 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 577 594) no Hoare annotation was computed. [2018-11-18 09:13:05,265 INFO L421 ceAbstractionStarter]: At program point L591(line 591) the Hoare annotation is: (let ((.cse1 (<= ~a20~0 0)) (.cse0 (<= ~a17~0 0)) (.cse4 (= 1 ~a7~0)) (.cse3 (= 1 ~a20~0)) (.cse2 (not (= ~a8~0 14)))) (or (not (= 1 |old(~a21~0)|)) (and .cse0 .cse1) (not (= 8 ~a12~0)) (and (not (= ~a16~0 0)) (not (= main_~input~0 0)) (= ~a17~0 1) (= ~a21~0 1) (= ~a20~0 1)) (not (= 1 |old(~a20~0)|)) (and .cse2 .cse1) (not (= 5 |old(~a16~0)|)) (and .cse3 .cse0) (not (= 0 |old(~a7~0)|)) (and .cse4 .cse3 .cse2) (and (<= ~a8~0 13) (= ~a7~0 |old(~a7~0)|)) (not (= 1 |old(~a17~0)|)) (not (= 15 |old(~a8~0)|)) (and (<= ~a8~0 |old(~a8~0)|) .cse4 (<= 15 ~a8~0)) (and .cse3 .cse2 (not (= ~a8~0 13))))) [2018-11-18 09:13:05,265 INFO L425 ceAbstractionStarter]: For program point L591-1(line 591) no Hoare annotation was computed. [2018-11-18 09:13:05,265 INFO L425 ceAbstractionStarter]: For program point L588(line 588) no Hoare annotation was computed. [2018-11-18 09:13:05,265 INFO L425 ceAbstractionStarter]: For program point L583-1(lines 583 593) no Hoare annotation was computed. [2018-11-18 09:13:05,265 INFO L421 ceAbstractionStarter]: At program point L583-3(lines 583 593) the Hoare annotation is: (let ((.cse1 (<= ~a20~0 0)) (.cse0 (<= ~a17~0 0)) (.cse4 (= 1 ~a7~0)) (.cse3 (= 1 ~a20~0)) (.cse2 (not (= ~a8~0 14)))) (or (not (= 1 |old(~a21~0)|)) (and .cse0 .cse1) (not (= 8 ~a12~0)) (and (not (= ~a16~0 0)) (= ~a17~0 1) (= ~a21~0 1) (= ~a20~0 1)) (not (= 1 |old(~a20~0)|)) (and .cse2 .cse1) (not (= 5 |old(~a16~0)|)) (and .cse3 .cse0) (not (= 0 |old(~a7~0)|)) (and .cse4 .cse3 .cse2) (and (<= ~a8~0 13) (= ~a7~0 |old(~a7~0)|)) (not (= 1 |old(~a17~0)|)) (not (= 15 |old(~a8~0)|)) (and (<= ~a8~0 |old(~a8~0)|) .cse4 (<= 15 ~a8~0)) (and .cse3 .cse2 (not (= ~a8~0 13))))) [2018-11-18 09:13:05,265 INFO L425 ceAbstractionStarter]: For program point L583-4(lines 577 594) no Hoare annotation was computed. [2018-11-18 09:13:05,277 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 09:13:05 BoogieIcfgContainer [2018-11-18 09:13:05,277 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 09:13:05,277 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 09:13:05,277 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 09:13:05,277 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 09:13:05,278 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 09:12:44" (3/4) ... [2018-11-18 09:13:05,293 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-18 09:13:05,298 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-18 09:13:05,298 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure calculate_output [2018-11-18 09:13:05,298 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-18 09:13:05,307 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2018-11-18 09:13:05,308 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-18 09:13:05,330 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((((((!(1 == \old(a21)) || (a17 <= 0 && a20 <= 0)) || !(8 == a12)) || (((!(a16 == 0) && a17 == 1) && a21 == 1) && a20 == 1)) || !(1 == \old(a20))) || (!(a8 == 14) && a20 <= 0)) || !(5 == \old(a16))) || (1 == a20 && a17 <= 0)) || !(0 == \old(a7))) || ((1 == a7 && 1 == a20) && !(a8 == 14))) || (a8 <= 13 && a7 == \old(a7))) || !(1 == \old(a17))) || !(15 == \old(a8))) || ((a8 <= \old(a8) && 1 == a7) && 15 <= a8)) || ((1 == a20 && !(a8 == 14)) && !(a8 == 13)) [2018-11-18 09:13:05,386 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_ab2beeff-4428-419b-81ae-53e19317c3c5/bin-2019/utaipan/witness.graphml [2018-11-18 09:13:05,386 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 09:13:05,387 INFO L168 Benchmark]: Toolchain (without parser) took 21887.76 ms. Allocated memory was 1.0 GB in the beginning and 2.3 GB in the end (delta: 1.3 GB). Free memory was 956.4 MB in the beginning and 1.8 GB in the end (delta: -843.1 MB). Peak memory consumption was 463.4 MB. Max. memory is 11.5 GB. [2018-11-18 09:13:05,387 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 09:13:05,388 INFO L168 Benchmark]: CACSL2BoogieTranslator took 366.34 ms. Allocated memory is still 1.0 GB. Free memory was 956.4 MB in the beginning and 913.4 MB in the end (delta: 43.0 MB). Peak memory consumption was 43.0 MB. Max. memory is 11.5 GB. [2018-11-18 09:13:05,388 INFO L168 Benchmark]: Boogie Procedure Inliner took 87.13 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 147.8 MB). Free memory was 913.4 MB in the beginning and 1.1 GB in the end (delta: -227.2 MB). Peak memory consumption was 18.4 MB. Max. memory is 11.5 GB. [2018-11-18 09:13:05,388 INFO L168 Benchmark]: Boogie Preprocessor took 48.69 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 4.7 MB). Peak memory consumption was 4.7 MB. Max. memory is 11.5 GB. [2018-11-18 09:13:05,388 INFO L168 Benchmark]: RCFGBuilder took 714.18 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 109.3 MB). Peak memory consumption was 109.3 MB. Max. memory is 11.5 GB. [2018-11-18 09:13:05,388 INFO L168 Benchmark]: TraceAbstraction took 20558.86 ms. Allocated memory was 1.2 GB in the beginning and 2.3 GB in the end (delta: 1.2 GB). Free memory was 1.0 GB in the beginning and 1.8 GB in the end (delta: -800.8 MB). Peak memory consumption was 1.2 GB. Max. memory is 11.5 GB. [2018-11-18 09:13:05,389 INFO L168 Benchmark]: Witness Printer took 109.27 ms. Allocated memory is still 2.3 GB. Free memory was 1.8 GB in the beginning and 1.8 GB in the end (delta: 27.8 MB). Peak memory consumption was 27.8 MB. Max. memory is 11.5 GB. [2018-11-18 09:13:05,390 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 366.34 ms. Allocated memory is still 1.0 GB. Free memory was 956.4 MB in the beginning and 913.4 MB in the end (delta: 43.0 MB). Peak memory consumption was 43.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 87.13 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 147.8 MB). Free memory was 913.4 MB in the beginning and 1.1 GB in the end (delta: -227.2 MB). Peak memory consumption was 18.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 48.69 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 4.7 MB). Peak memory consumption was 4.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 714.18 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 109.3 MB). Peak memory consumption was 109.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 20558.86 ms. Allocated memory was 1.2 GB in the beginning and 2.3 GB in the end (delta: 1.2 GB). Free memory was 1.0 GB in the beginning and 1.8 GB in the end (delta: -800.8 MB). Peak memory consumption was 1.2 GB. Max. memory is 11.5 GB. * Witness Printer took 109.27 ms. Allocated memory is still 2.3 GB. Free memory was 1.8 GB in the beginning and 1.8 GB in the end (delta: 27.8 MB). Peak memory consumption was 27.8 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 524]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 583]: Loop Invariant Derived loop invariant: (((((((((((((!(1 == \old(a21)) || (a17 <= 0 && a20 <= 0)) || !(8 == a12)) || (((!(a16 == 0) && a17 == 1) && a21 == 1) && a20 == 1)) || !(1 == \old(a20))) || (!(a8 == 14) && a20 <= 0)) || !(5 == \old(a16))) || (1 == a20 && a17 <= 0)) || !(0 == \old(a7))) || ((1 == a7 && 1 == a20) && !(a8 == 14))) || (a8 <= 13 && a7 == \old(a7))) || !(1 == \old(a17))) || !(15 == \old(a8))) || ((a8 <= \old(a8) && 1 == a7) && 15 <= a8)) || ((1 == a20 && !(a8 == 14)) && !(a8 == 13)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 208 locations, 1 error locations. SAFE Result, 20.5s OverallTime, 9 OverallIterations, 5 TraceHistogramMax, 13.7s AutomataDifference, 0.0s DeadEndRemovalTime, 1.7s HoareAnnotationTime, HoareTripleCheckerStatistics: 1323 SDtfs, 7062 SDslu, 1930 SDs, 0 SdLazy, 10365 SolverSat, 1741 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.8s Time, PredicateUnifierStatistics: 6 DeclaredPredicates, 2056 GetRequests, 1935 SyntacticMatches, 7 SemanticMatches, 114 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 398 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=5112occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 1.4s AbstIntTime, 5 AbstIntIterations, 3 AbstIntStrong, 0.9974048158266813 AbsIntWeakeningRatio, 0.1973018549747049 AbsIntAvgWeakeningVarsNumRemoved, 28.954468802698145 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 9 MinimizatonAttempts, 155 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 191 PreInvPairs, 321 NumberOfFragments, 721 HoareAnnotationTreeSize, 191 FomulaSimplifications, 5377 FormulaSimplificationTreeSizeReduction, 0.2s HoareSimplificationTime, 7 FomulaSimplificationsInter, 4714 FormulaSimplificationTreeSizeReductionInter, 1.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 2371 NumberOfCodeBlocks, 2304 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 3028 ConstructedInterpolants, 0 QuantifiedInterpolants, 1205214 SizeOfPredicates, 4 NumberOfNonLiveVariables, 1643 ConjunctsInSsa, 12 ConjunctsInUnsatCore, 15 InterpolantComputations, 5 PerfectInterpolantSequences, 1743/1987 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...