./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem01_label46_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_8dc0e988-dfa7-4029-abef-5c7b6b074805/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_8dc0e988-dfa7-4029-abef-5c7b6b074805/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_8dc0e988-dfa7-4029-abef-5c7b6b074805/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_8dc0e988-dfa7-4029-abef-5c7b6b074805/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem01_label46_true-unreach-call_false-termination.c -s /tmp/vcloud-vcloud-master/worker/working_dir_8dc0e988-dfa7-4029-abef-5c7b6b074805/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_8dc0e988-dfa7-4029-abef-5c7b6b074805/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 7a28669cb9b241f33b1fd8e4286127a35464e045 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 15:51:45,877 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 15:51:45,879 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 15:51:45,888 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 15:51:45,888 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 15:51:45,888 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 15:51:45,889 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 15:51:45,890 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 15:51:45,891 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 15:51:45,892 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 15:51:45,893 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 15:51:45,893 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 15:51:45,894 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 15:51:45,894 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 15:51:45,895 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 15:51:45,896 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 15:51:45,896 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 15:51:45,898 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 15:51:45,899 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 15:51:45,901 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 15:51:45,901 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 15:51:45,903 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 15:51:45,904 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 15:51:45,905 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 15:51:45,905 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 15:51:45,906 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 15:51:45,907 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 15:51:45,907 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 15:51:45,908 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 15:51:45,909 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 15:51:45,909 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 15:51:45,909 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 15:51:45,909 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 15:51:45,910 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 15:51:45,911 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 15:51:45,911 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 15:51:45,911 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_8dc0e988-dfa7-4029-abef-5c7b6b074805/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-18 15:51:45,920 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 15:51:45,920 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 15:51:45,921 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 15:51:45,921 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-18 15:51:45,921 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-18 15:51:45,921 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-18 15:51:45,921 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-18 15:51:45,921 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-18 15:51:45,921 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-18 15:51:45,922 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-18 15:51:45,922 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-18 15:51:45,923 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-18 15:51:45,923 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-18 15:51:45,924 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 15:51:45,924 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 15:51:45,924 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 15:51:45,924 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 15:51:45,924 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 15:51:45,924 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 15:51:45,924 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 15:51:45,925 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 15:51:45,925 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 15:51:45,925 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 15:51:45,925 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 15:51:45,925 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 15:51:45,925 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 15:51:45,925 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 15:51:45,926 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 15:51:45,926 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 15:51:45,927 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 15:51:45,928 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 15:51:45,928 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 15:51:45,928 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 15:51:45,928 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-18 15:51:45,928 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 15:51:45,928 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-18 15:51:45,928 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-18 15:51:45,929 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_8dc0e988-dfa7-4029-abef-5c7b6b074805/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 -> 7a28669cb9b241f33b1fd8e4286127a35464e045 [2018-11-18 15:51:45,956 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 15:51:45,966 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 15:51:45,969 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 15:51:45,970 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 15:51:45,971 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 15:51:45,971 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_8dc0e988-dfa7-4029-abef-5c7b6b074805/bin-2019/utaipan/../../sv-benchmarks/c/eca-rers2012/Problem01_label46_true-unreach-call_false-termination.c [2018-11-18 15:51:46,027 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_8dc0e988-dfa7-4029-abef-5c7b6b074805/bin-2019/utaipan/data/3a84547dd/596aa373a38f4302b2125d86ff52755c/FLAGf41e3c5d2 [2018-11-18 15:51:46,486 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 15:51:46,486 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_8dc0e988-dfa7-4029-abef-5c7b6b074805/sv-benchmarks/c/eca-rers2012/Problem01_label46_true-unreach-call_false-termination.c [2018-11-18 15:51:46,513 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_8dc0e988-dfa7-4029-abef-5c7b6b074805/bin-2019/utaipan/data/3a84547dd/596aa373a38f4302b2125d86ff52755c/FLAGf41e3c5d2 [2018-11-18 15:51:46,994 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_8dc0e988-dfa7-4029-abef-5c7b6b074805/bin-2019/utaipan/data/3a84547dd/596aa373a38f4302b2125d86ff52755c [2018-11-18 15:51:46,998 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 15:51:46,999 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 15:51:47,000 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 15:51:47,000 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 15:51:47,003 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 15:51:47,004 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 03:51:46" (1/1) ... [2018-11-18 15:51:47,006 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3fabe2ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:51:47, skipping insertion in model container [2018-11-18 15:51:47,007 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 03:51:46" (1/1) ... [2018-11-18 15:51:47,016 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 15:51:47,072 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 15:51:47,351 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 15:51:47,355 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 15:51:47,420 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 15:51:47,433 INFO L195 MainTranslator]: Completed translation [2018-11-18 15:51:47,434 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:51:47 WrapperNode [2018-11-18 15:51:47,434 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 15:51:47,435 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 15:51:47,435 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 15:51:47,435 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 15:51:47,442 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:51:47" (1/1) ... [2018-11-18 15:51:47,500 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:51:47" (1/1) ... [2018-11-18 15:51:47,507 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 15:51:47,507 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 15:51:47,507 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 15:51:47,507 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 15:51:47,514 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:51:47" (1/1) ... [2018-11-18 15:51:47,514 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:51:47" (1/1) ... [2018-11-18 15:51:47,516 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:51:47" (1/1) ... [2018-11-18 15:51:47,517 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:51:47" (1/1) ... [2018-11-18 15:51:47,541 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:51:47" (1/1) ... [2018-11-18 15:51:47,552 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:51:47" (1/1) ... [2018-11-18 15:51:47,555 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:51:47" (1/1) ... [2018-11-18 15:51:47,563 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 15:51:47,564 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 15:51:47,564 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 15:51:47,564 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 15:51:47,565 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:51:47" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_8dc0e988-dfa7-4029-abef-5c7b6b074805/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 15:51:47,621 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-18 15:51:47,621 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 15:51:47,621 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 15:51:47,621 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-11-18 15:51:47,621 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-11-18 15:51:47,622 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 15:51:47,622 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 15:51:47,622 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 15:51:47,622 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 15:51:49,228 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 15:51:49,228 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 03:51:49 BoogieIcfgContainer [2018-11-18 15:51:49,229 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 15:51:49,229 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 15:51:49,229 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 15:51:49,232 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 15:51:49,232 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 03:51:46" (1/3) ... [2018-11-18 15:51:49,233 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62628f33 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 03:51:49, skipping insertion in model container [2018-11-18 15:51:49,233 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:51:47" (2/3) ... [2018-11-18 15:51:49,233 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62628f33 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 03:51:49, skipping insertion in model container [2018-11-18 15:51:49,233 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 03:51:49" (3/3) ... [2018-11-18 15:51:49,236 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem01_label46_true-unreach-call_false-termination.c [2018-11-18 15:51:49,245 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 15:51:49,255 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 15:51:49,268 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 15:51:49,299 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 15:51:49,300 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 15:51:49,300 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 15:51:49,300 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 15:51:49,300 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 15:51:49,302 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 15:51:49,303 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 15:51:49,303 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 15:51:49,324 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states. [2018-11-18 15:51:49,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2018-11-18 15:51:49,334 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 15:51:49,335 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] [2018-11-18 15:51:49,337 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 15:51:49,342 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:51:49,342 INFO L82 PathProgramCache]: Analyzing trace with hash -1130401459, now seen corresponding path program 1 times [2018-11-18 15:51:49,345 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 15:51:49,386 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:51:49,386 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:51:49,386 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:51:49,386 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 15:51:49,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:51:49,808 WARN L180 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-18 15:51:49,874 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 15:51:49,876 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 15:51:49,876 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 15:51:49,878 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 15:51:49,883 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 15:51:49,894 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 15:51:49,894 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 15:51:49,896 INFO L87 Difference]: Start difference. First operand 208 states. Second operand 3 states. [2018-11-18 15:51:50,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 15:51:50,621 INFO L93 Difference]: Finished difference Result 550 states and 941 transitions. [2018-11-18 15:51:50,622 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 15:51:50,627 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 119 [2018-11-18 15:51:50,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 15:51:50,639 INFO L225 Difference]: With dead ends: 550 [2018-11-18 15:51:50,640 INFO L226 Difference]: Without dead ends: 340 [2018-11-18 15:51:50,644 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 15:51:50,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states. [2018-11-18 15:51:50,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 340. [2018-11-18 15:51:50,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 340 states. [2018-11-18 15:51:50,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 340 states to 340 states and 569 transitions. [2018-11-18 15:51:50,697 INFO L78 Accepts]: Start accepts. Automaton has 340 states and 569 transitions. Word has length 119 [2018-11-18 15:51:50,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 15:51:50,698 INFO L480 AbstractCegarLoop]: Abstraction has 340 states and 569 transitions. [2018-11-18 15:51:50,698 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 15:51:50,698 INFO L276 IsEmpty]: Start isEmpty. Operand 340 states and 569 transitions. [2018-11-18 15:51:50,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2018-11-18 15:51:50,701 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 15:51:50,702 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 15:51:50,702 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 15:51:50,702 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:51:50,702 INFO L82 PathProgramCache]: Analyzing trace with hash -1960216906, now seen corresponding path program 1 times [2018-11-18 15:51:50,702 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 15:51:50,703 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:51:50,703 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:51:50,704 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:51:50,704 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 15:51:50,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:51:50,823 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 15:51:50,823 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 15:51:50,824 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-18 15:51:50,824 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 15:51:50,825 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-18 15:51:50,826 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-18 15:51:50,826 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-18 15:51:50,826 INFO L87 Difference]: Start difference. First operand 340 states and 569 transitions. Second operand 5 states. [2018-11-18 15:51:51,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 15:51:51,852 INFO L93 Difference]: Finished difference Result 1079 states and 1888 transitions. [2018-11-18 15:51:51,853 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-18 15:51:51,853 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 129 [2018-11-18 15:51:51,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 15:51:51,858 INFO L225 Difference]: With dead ends: 1079 [2018-11-18 15:51:51,858 INFO L226 Difference]: Without dead ends: 745 [2018-11-18 15:51:51,861 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-11-18 15:51:51,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 745 states. [2018-11-18 15:51:51,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 745 to 733. [2018-11-18 15:51:51,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 733 states. [2018-11-18 15:51:51,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 733 states to 733 states and 1163 transitions. [2018-11-18 15:51:51,895 INFO L78 Accepts]: Start accepts. Automaton has 733 states and 1163 transitions. Word has length 129 [2018-11-18 15:51:51,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 15:51:51,895 INFO L480 AbstractCegarLoop]: Abstraction has 733 states and 1163 transitions. [2018-11-18 15:51:51,895 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-18 15:51:51,895 INFO L276 IsEmpty]: Start isEmpty. Operand 733 states and 1163 transitions. [2018-11-18 15:51:51,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2018-11-18 15:51:51,899 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 15:51:51,899 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:51:51,900 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 15:51:51,900 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:51:51,900 INFO L82 PathProgramCache]: Analyzing trace with hash -405480129, now seen corresponding path program 1 times [2018-11-18 15:51:51,900 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 15:51:51,901 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:51:51,901 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:51:51,901 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:51:51,901 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 15:51:51,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:51:52,041 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 40 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 15:51:52,042 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 15:51:52,042 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 15:51:52,043 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 156 with the following transitions: [2018-11-18 15:51:52,045 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [6], [10], [14], [17], [18], [22], [26], [30], [34], [38], [42], [46], [50], [54], [58], [62], [65], [66], [70], [74], [78], [82], [86], [90], [94], [98], [102], [106], [110], [114], [118], [122], [126], [130], [134], [138], [142], [146], [150], [154], [158], [162], [166], [170], [174], [178], [182], [186], [190], [194], [198], [202], [206], [210], [214], [218], [222], [226], [230], [234], [238], [242], [246], [250], [254], [258], [262], [266], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [465], [473], [481], [489], [497], [505], [513], [521], [529], [537], [545], [553], [561], [569], [577], [585], [589], [591], [757], [761], [765], [771], [775], [777], [782], [783], [784], [786], [787] [2018-11-18 15:51:52,089 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 15:51:52,093 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 15:51:52,723 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-18 15:51:52,724 INFO L272 AbstractInterpreter]: Visited 123 different actions 239 times. Merged at 4 different actions 4 times. Never widened. Performed 3272 root evaluator evaluations with a maximum evaluation depth of 3. Performed 3272 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 15:51:52,806 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:51:52,806 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-18 15:51:53,295 INFO L227 lantSequenceWeakener]: Weakened 152 states. On average, predicates are now at 81.91% of their original sizes. [2018-11-18 15:51:53,296 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-18 15:51:53,676 INFO L415 sIntCurrentIteration]: We unified 154 AI predicates to 154 [2018-11-18 15:51:53,677 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-18 15:51:53,677 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-18 15:51:53,677 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [6] total 14 [2018-11-18 15:51:53,677 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 15:51:53,679 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-18 15:51:53,679 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-18 15:51:53,680 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2018-11-18 15:51:53,680 INFO L87 Difference]: Start difference. First operand 733 states and 1163 transitions. Second operand 10 states. [2018-11-18 15:51:57,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 15:51:57,888 INFO L93 Difference]: Finished difference Result 2801 states and 4501 transitions. [2018-11-18 15:51:57,888 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-11-18 15:51:57,888 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 155 [2018-11-18 15:51:57,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 15:51:57,895 INFO L225 Difference]: With dead ends: 2801 [2018-11-18 15:51:57,895 INFO L226 Difference]: Without dead ends: 2074 [2018-11-18 15:51:57,898 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 164 GetRequests, 146 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=99, Invalid=281, Unknown=0, NotChecked=0, Total=380 [2018-11-18 15:51:57,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2074 states. [2018-11-18 15:51:57,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2074 to 2043. [2018-11-18 15:51:57,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2043 states. [2018-11-18 15:51:57,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2043 states to 2043 states and 2623 transitions. [2018-11-18 15:51:57,942 INFO L78 Accepts]: Start accepts. Automaton has 2043 states and 2623 transitions. Word has length 155 [2018-11-18 15:51:57,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 15:51:57,942 INFO L480 AbstractCegarLoop]: Abstraction has 2043 states and 2623 transitions. [2018-11-18 15:51:57,942 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-18 15:51:57,943 INFO L276 IsEmpty]: Start isEmpty. Operand 2043 states and 2623 transitions. [2018-11-18 15:51:57,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2018-11-18 15:51:57,946 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 15:51:57,946 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:51:57,947 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 15:51:57,947 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:51:57,947 INFO L82 PathProgramCache]: Analyzing trace with hash 1456364036, now seen corresponding path program 1 times [2018-11-18 15:51:57,947 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 15:51:57,948 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:51:57,948 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:51:57,948 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:51:57,948 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 15:51:57,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:51:58,076 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 52 proven. 15 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-11-18 15:51:58,076 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 15:51:58,076 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 15:51:58,076 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 169 with the following transitions: [2018-11-18 15:51:58,077 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [5], [6], [10], [14], [18], [22], [26], [30], [33], [34], [38], [42], [46], [50], [54], [58], [62], [65], [66], [70], [74], [78], [82], [86], [90], [94], [98], [102], [106], [110], [114], [118], [122], [126], [130], [134], [138], [142], [146], [150], [154], [158], [162], [166], [170], [174], [178], [182], [186], [190], [194], [198], [202], [206], [210], [214], [218], [222], [226], [230], [234], [238], [242], [246], [250], [254], [258], [262], [266], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [465], [473], [481], [489], [497], [505], [513], [521], [529], [537], [545], [553], [561], [569], [577], [585], [589], [591], [757], [761], [765], [771], [775], [777], [782], [783], [784], [786], [787] [2018-11-18 15:51:58,080 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 15:51:58,080 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 15:51:58,250 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-18 15:51:58,250 INFO L272 AbstractInterpreter]: Visited 124 different actions 242 times. Merged at 5 different actions 5 times. Never widened. Performed 3160 root evaluator evaluations with a maximum evaluation depth of 3. Performed 3160 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 15:51:58,258 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:51:58,259 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-18 15:51:58,515 INFO L227 lantSequenceWeakener]: Weakened 165 states. On average, predicates are now at 81.88% of their original sizes. [2018-11-18 15:51:58,516 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-18 15:51:58,555 INFO L415 sIntCurrentIteration]: We unified 167 AI predicates to 167 [2018-11-18 15:51:58,555 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-18 15:51:58,555 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-18 15:51:58,555 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [6] total 14 [2018-11-18 15:51:58,556 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 15:51:58,556 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-18 15:51:58,556 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-18 15:51:58,556 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2018-11-18 15:51:58,556 INFO L87 Difference]: Start difference. First operand 2043 states and 2623 transitions. Second operand 10 states. [2018-11-18 15:52:01,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 15:52:01,196 INFO L93 Difference]: Finished difference Result 4085 states and 5313 transitions. [2018-11-18 15:52:01,196 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-11-18 15:52:01,196 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 168 [2018-11-18 15:52:01,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 15:52:01,204 INFO L225 Difference]: With dead ends: 4085 [2018-11-18 15:52:01,204 INFO L226 Difference]: Without dead ends: 2184 [2018-11-18 15:52:01,210 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 175 GetRequests, 159 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 15:52:01,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2184 states. [2018-11-18 15:52:01,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2184 to 2181. [2018-11-18 15:52:01,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2181 states. [2018-11-18 15:52:01,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2181 states to 2181 states and 2777 transitions. [2018-11-18 15:52:01,265 INFO L78 Accepts]: Start accepts. Automaton has 2181 states and 2777 transitions. Word has length 168 [2018-11-18 15:52:01,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 15:52:01,265 INFO L480 AbstractCegarLoop]: Abstraction has 2181 states and 2777 transitions. [2018-11-18 15:52:01,265 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-18 15:52:01,265 INFO L276 IsEmpty]: Start isEmpty. Operand 2181 states and 2777 transitions. [2018-11-18 15:52:01,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2018-11-18 15:52:01,271 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 15:52:01,271 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:52:01,272 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 15:52:01,272 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:52:01,272 INFO L82 PathProgramCache]: Analyzing trace with hash -658968777, now seen corresponding path program 1 times [2018-11-18 15:52:01,272 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 15:52:01,273 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:52:01,273 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:52:01,273 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:52:01,273 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 15:52:01,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:52:01,372 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 66 proven. 14 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2018-11-18 15:52:01,372 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 15:52:01,372 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 15:52:01,373 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 181 with the following transitions: [2018-11-18 15:52:01,373 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [5], [6], [10], [14], [17], [18], [22], [26], [30], [33], [34], [38], [42], [46], [50], [54], [58], [62], [65], [66], [70], [74], [78], [82], [86], [90], [94], [98], [102], [106], [110], [114], [118], [122], [126], [130], [134], [138], [142], [146], [150], [154], [158], [162], [166], [170], [174], [178], [182], [186], [190], [194], [198], [202], [206], [210], [214], [218], [222], [226], [230], [234], [238], [242], [246], [250], [254], [258], [262], [266], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [465], [473], [481], [489], [497], [505], [513], [521], [529], [537], [545], [553], [561], [569], [577], [585], [589], [591], [757], [761], [765], [771], [775], [777], [782], [783], [784], [786], [787] [2018-11-18 15:52:01,376 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 15:52:01,377 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 15:52:01,666 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-18 15:52:01,666 INFO L272 AbstractInterpreter]: Visited 125 different actions 371 times. Merged at 7 different actions 18 times. Never widened. Performed 5019 root evaluator evaluations with a maximum evaluation depth of 3. Performed 5019 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 15:52:01,669 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:52:01,669 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-18 15:52:01,803 INFO L227 lantSequenceWeakener]: Weakened 177 states. On average, predicates are now at 83.44% of their original sizes. [2018-11-18 15:52:01,803 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-18 15:52:01,848 INFO L415 sIntCurrentIteration]: We unified 179 AI predicates to 179 [2018-11-18 15:52:01,848 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-18 15:52:01,849 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-18 15:52:01,849 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [5] total 12 [2018-11-18 15:52:01,849 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 15:52:01,849 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-18 15:52:01,849 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-18 15:52:01,850 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2018-11-18 15:52:01,850 INFO L87 Difference]: Start difference. First operand 2181 states and 2777 transitions. Second operand 9 states. [2018-11-18 15:52:04,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 15:52:04,435 INFO L93 Difference]: Finished difference Result 5194 states and 6952 transitions. [2018-11-18 15:52:04,435 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-11-18 15:52:04,436 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 180 [2018-11-18 15:52:04,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 15:52:04,443 INFO L225 Difference]: With dead ends: 5194 [2018-11-18 15:52:04,443 INFO L226 Difference]: Without dead ends: 3293 [2018-11-18 15:52:04,448 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 186 GetRequests, 172 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=62, Invalid=178, Unknown=0, NotChecked=0, Total=240 [2018-11-18 15:52:04,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3293 states. [2018-11-18 15:52:04,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3293 to 3243. [2018-11-18 15:52:04,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3243 states. [2018-11-18 15:52:04,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3243 states to 3243 states and 4110 transitions. [2018-11-18 15:52:04,493 INFO L78 Accepts]: Start accepts. Automaton has 3243 states and 4110 transitions. Word has length 180 [2018-11-18 15:52:04,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 15:52:04,493 INFO L480 AbstractCegarLoop]: Abstraction has 3243 states and 4110 transitions. [2018-11-18 15:52:04,493 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-18 15:52:04,493 INFO L276 IsEmpty]: Start isEmpty. Operand 3243 states and 4110 transitions. [2018-11-18 15:52:04,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2018-11-18 15:52:04,497 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 15:52:04,498 INFO L375 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:52:04,498 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 15:52:04,498 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:52:04,498 INFO L82 PathProgramCache]: Analyzing trace with hash -1786830668, now seen corresponding path program 1 times [2018-11-18 15:52:04,498 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 15:52:04,499 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:52:04,499 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:52:04,499 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:52:04,499 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 15:52:04,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:52:04,560 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 88 proven. 20 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2018-11-18 15:52:04,560 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 15:52:04,560 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 15:52:04,560 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 201 with the following transitions: [2018-11-18 15:52:04,561 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [5], [6], [10], [14], [17], [18], [22], [26], [30], [33], [34], [38], [42], [46], [49], [50], [54], [58], [62], [65], [66], [70], [74], [78], [82], [86], [90], [94], [98], [102], [106], [110], [114], [118], [122], [126], [130], [134], [138], [142], [146], [150], [154], [158], [162], [166], [170], [174], [178], [182], [186], [190], [194], [198], [202], [206], [210], [214], [218], [222], [226], [230], [234], [238], [242], [246], [250], [254], [258], [262], [266], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [465], [473], [481], [489], [497], [505], [513], [521], [529], [537], [545], [553], [561], [569], [577], [585], [589], [591], [757], [761], [765], [771], [775], [777], [782], [783], [784], [786], [787] [2018-11-18 15:52:04,564 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 15:52:04,564 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 15:52:04,939 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-18 15:52:04,939 INFO L272 AbstractInterpreter]: Visited 127 different actions 633 times. Merged at 10 different actions 45 times. Never widened. Performed 9110 root evaluator evaluations with a maximum evaluation depth of 3. Performed 9110 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 12 fixpoints after 2 different actions. Largest state had 42 variables. [2018-11-18 15:52:04,941 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:52:04,941 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-18 15:52:04,941 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 15:52:04,942 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_8dc0e988-dfa7-4029-abef-5c7b6b074805/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 15:52:04,948 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:52:04,948 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-18 15:52:05,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:52:05,036 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 15:52:05,172 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 82 proven. 2 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2018-11-18 15:52:05,172 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 15:52:05,340 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 88 proven. 20 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2018-11-18 15:52:05,357 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-18 15:52:05,357 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2018-11-18 15:52:05,357 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-18 15:52:05,358 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-18 15:52:05,358 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-18 15:52:05,358 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2018-11-18 15:52:05,358 INFO L87 Difference]: Start difference. First operand 3243 states and 4110 transitions. Second operand 8 states. [2018-11-18 15:52:07,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 15:52:07,212 INFO L93 Difference]: Finished difference Result 11102 states and 15009 transitions. [2018-11-18 15:52:07,213 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2018-11-18 15:52:07,213 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 200 [2018-11-18 15:52:07,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 15:52:07,213 INFO L225 Difference]: With dead ends: 11102 [2018-11-18 15:52:07,214 INFO L226 Difference]: Without dead ends: 0 [2018-11-18 15:52:07,243 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 445 GetRequests, 415 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 15:52:07,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-18 15:52:07,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-18 15:52:07,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-18 15:52:07,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-18 15:52:07,244 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 200 [2018-11-18 15:52:07,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 15:52:07,244 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 15:52:07,244 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-18 15:52:07,244 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-18 15:52:07,244 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 15:52:07,248 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-18 15:52:07,367 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 15:52:07,369 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 15:52:07,375 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 15:52:07,383 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 15:52:07,386 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 15:52:07,423 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 15:52:08,212 WARN L180 SmtUtils]: Spent 656.00 ms on a formula simplification. DAG size of input: 181 DAG size of output: 82 [2018-11-18 15:52:08,322 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-18 15:52:08,322 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)) [2018-11-18 15:52:08,323 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-18 15:52:08,323 INFO L425 ceAbstractionStarter]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 512) no Hoare annotation was computed. [2018-11-18 15:52:08,323 INFO L425 ceAbstractionStarter]: For program point L333(lines 333 390) no Hoare annotation was computed. [2018-11-18 15:52:08,323 INFO L425 ceAbstractionStarter]: For program point L102(lines 102 390) no Hoare annotation was computed. [2018-11-18 15:52:08,323 INFO L425 ceAbstractionStarter]: For program point L565-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 15:52:08,323 INFO L425 ceAbstractionStarter]: For program point L532-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 15:52:08,323 INFO L425 ceAbstractionStarter]: For program point L499-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 15:52:08,323 INFO L425 ceAbstractionStarter]: For program point L466-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 15:52:08,323 INFO L425 ceAbstractionStarter]: For program point L433-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 15:52:08,323 INFO L425 ceAbstractionStarter]: For program point L400-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 15:52:08,323 INFO L425 ceAbstractionStarter]: For program point L268(lines 268 390) no Hoare annotation was computed. [2018-11-18 15:52:08,324 INFO L425 ceAbstractionStarter]: For program point L136(lines 136 390) no Hoare annotation was computed. [2018-11-18 15:52:08,324 INFO L425 ceAbstractionStarter]: For program point L566(line 566) no Hoare annotation was computed. [2018-11-18 15:52:08,324 INFO L425 ceAbstractionStarter]: For program point L533(line 533) no Hoare annotation was computed. [2018-11-18 15:52:08,324 INFO L425 ceAbstractionStarter]: For program point L500(line 500) no Hoare annotation was computed. [2018-11-18 15:52:08,324 INFO L425 ceAbstractionStarter]: For program point L467(line 467) no Hoare annotation was computed. [2018-11-18 15:52:08,324 INFO L425 ceAbstractionStarter]: For program point L434(line 434) no Hoare annotation was computed. [2018-11-18 15:52:08,324 INFO L425 ceAbstractionStarter]: For program point L401(line 401) no Hoare annotation was computed. [2018-11-18 15:52:08,324 INFO L425 ceAbstractionStarter]: For program point L203(lines 203 390) no Hoare annotation was computed. [2018-11-18 15:52:08,324 INFO L425 ceAbstractionStarter]: For program point L72(lines 72 390) no Hoare annotation was computed. [2018-11-18 15:52:08,324 INFO L425 ceAbstractionStarter]: For program point L568-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 15:52:08,324 INFO L425 ceAbstractionStarter]: For program point L535-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 15:52:08,324 INFO L425 ceAbstractionStarter]: For program point L502-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 15:52:08,324 INFO L425 ceAbstractionStarter]: For program point L469-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 15:52:08,324 INFO L425 ceAbstractionStarter]: For program point L436-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 15:52:08,324 INFO L425 ceAbstractionStarter]: For program point L403-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 15:52:08,325 INFO L425 ceAbstractionStarter]: For program point L337(lines 337 390) no Hoare annotation was computed. [2018-11-18 15:52:08,325 INFO L425 ceAbstractionStarter]: For program point L238(lines 238 390) no Hoare annotation was computed. [2018-11-18 15:52:08,325 INFO L425 ceAbstractionStarter]: For program point L569(line 569) no Hoare annotation was computed. [2018-11-18 15:52:08,325 INFO L425 ceAbstractionStarter]: For program point L536(line 536) no Hoare annotation was computed. [2018-11-18 15:52:08,325 INFO L425 ceAbstractionStarter]: For program point L503(line 503) no Hoare annotation was computed. [2018-11-18 15:52:08,325 INFO L425 ceAbstractionStarter]: For program point L470(line 470) no Hoare annotation was computed. [2018-11-18 15:52:08,325 INFO L425 ceAbstractionStarter]: For program point L437(line 437) no Hoare annotation was computed. [2018-11-18 15:52:08,325 INFO L425 ceAbstractionStarter]: For program point L404(line 404) no Hoare annotation was computed. [2018-11-18 15:52:08,325 INFO L425 ceAbstractionStarter]: For program point L173(lines 173 390) no Hoare annotation was computed. [2018-11-18 15:52:08,325 INFO L425 ceAbstractionStarter]: For program point L140(lines 140 390) no Hoare annotation was computed. [2018-11-18 15:52:08,325 INFO L425 ceAbstractionStarter]: For program point L372(lines 372 390) no Hoare annotation was computed. [2018-11-18 15:52:08,325 INFO L425 ceAbstractionStarter]: For program point L306(lines 306 390) no Hoare annotation was computed. [2018-11-18 15:52:08,325 INFO L425 ceAbstractionStarter]: For program point L273(lines 273 390) no Hoare annotation was computed. [2018-11-18 15:52:08,325 INFO L425 ceAbstractionStarter]: For program point L108(lines 108 390) no Hoare annotation was computed. [2018-11-18 15:52:08,325 INFO L425 ceAbstractionStarter]: For program point L571-1(lines 571 573) no Hoare annotation was computed. [2018-11-18 15:52:08,326 INFO L425 ceAbstractionStarter]: For program point L538-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 15:52:08,326 INFO L425 ceAbstractionStarter]: For program point L505-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 15:52:08,326 INFO L425 ceAbstractionStarter]: For program point L472-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 15:52:08,326 INFO L425 ceAbstractionStarter]: For program point L439-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 15:52:08,326 INFO L425 ceAbstractionStarter]: For program point L406-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 15:52:08,326 INFO L425 ceAbstractionStarter]: For program point L208(lines 208 390) no Hoare annotation was computed. [2018-11-18 15:52:08,326 INFO L425 ceAbstractionStarter]: For program point L43(lines 43 390) no Hoare annotation was computed. [2018-11-18 15:52:08,326 INFO L425 ceAbstractionStarter]: For program point L572(line 572) no Hoare annotation was computed. [2018-11-18 15:52:08,326 INFO L425 ceAbstractionStarter]: For program point L539(line 539) no Hoare annotation was computed. [2018-11-18 15:52:08,326 INFO L425 ceAbstractionStarter]: For program point L506(line 506) no Hoare annotation was computed. [2018-11-18 15:52:08,326 INFO L425 ceAbstractionStarter]: For program point L473(line 473) no Hoare annotation was computed. [2018-11-18 15:52:08,326 INFO L425 ceAbstractionStarter]: For program point L440(line 440) no Hoare annotation was computed. [2018-11-18 15:52:08,326 INFO L425 ceAbstractionStarter]: For program point L407(line 407) no Hoare annotation was computed. [2018-11-18 15:52:08,326 INFO L425 ceAbstractionStarter]: For program point L144(lines 144 390) no Hoare annotation was computed. [2018-11-18 15:52:08,326 INFO L425 ceAbstractionStarter]: For program point L541-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 15:52:08,327 INFO L425 ceAbstractionStarter]: For program point L508-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 15:52:08,327 INFO L425 ceAbstractionStarter]: For program point L475-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 15:52:08,327 INFO L425 ceAbstractionStarter]: For program point L442-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 15:52:08,327 INFO L425 ceAbstractionStarter]: For program point L409-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 15:52:08,327 INFO L425 ceAbstractionStarter]: For program point L178(lines 178 390) no Hoare annotation was computed. [2018-11-18 15:52:08,327 INFO L425 ceAbstractionStarter]: For program point L542(line 542) no Hoare annotation was computed. [2018-11-18 15:52:08,327 INFO L425 ceAbstractionStarter]: For program point L509(line 509) no Hoare annotation was computed. [2018-11-18 15:52:08,327 INFO L425 ceAbstractionStarter]: For program point L476(line 476) no Hoare annotation was computed. [2018-11-18 15:52:08,327 INFO L425 ceAbstractionStarter]: For program point L443(line 443) no Hoare annotation was computed. [2018-11-18 15:52:08,327 INFO L425 ceAbstractionStarter]: For program point L410(line 410) no Hoare annotation was computed. [2018-11-18 15:52:08,327 INFO L425 ceAbstractionStarter]: For program point L377(lines 377 390) no Hoare annotation was computed. [2018-11-18 15:52:08,327 INFO L425 ceAbstractionStarter]: For program point L278(lines 278 390) no Hoare annotation was computed. [2018-11-18 15:52:08,327 INFO L425 ceAbstractionStarter]: For program point L245(lines 245 390) no Hoare annotation was computed. [2018-11-18 15:52:08,327 INFO L425 ceAbstractionStarter]: For program point L80(lines 80 390) no Hoare annotation was computed. [2018-11-18 15:52:08,328 INFO L425 ceAbstractionStarter]: For program point L345(lines 345 390) no Hoare annotation was computed. [2018-11-18 15:52:08,328 INFO L425 ceAbstractionStarter]: For program point L312(lines 312 390) no Hoare annotation was computed. [2018-11-18 15:52:08,328 INFO L425 ceAbstractionStarter]: For program point L114(lines 114 390) no Hoare annotation was computed. [2018-11-18 15:52:08,328 INFO L425 ceAbstractionStarter]: For program point L544-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 15:52:08,328 INFO L425 ceAbstractionStarter]: For program point L511-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 15:52:08,328 INFO L425 ceAbstractionStarter]: For program point L478-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 15:52:08,328 INFO L425 ceAbstractionStarter]: For program point L445-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 15:52:08,328 INFO L425 ceAbstractionStarter]: For program point L412-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 15:52:08,328 INFO L425 ceAbstractionStarter]: For program point L214(lines 214 390) no Hoare annotation was computed. [2018-11-18 15:52:08,328 INFO L425 ceAbstractionStarter]: For program point L148(lines 148 390) no Hoare annotation was computed. [2018-11-18 15:52:08,328 INFO L425 ceAbstractionStarter]: For program point L49(lines 49 390) no Hoare annotation was computed. [2018-11-18 15:52:08,328 INFO L425 ceAbstractionStarter]: For program point L545(line 545) no Hoare annotation was computed. [2018-11-18 15:52:08,328 INFO L425 ceAbstractionStarter]: For program point L512(line 512) no Hoare annotation was computed. [2018-11-18 15:52:08,328 INFO L425 ceAbstractionStarter]: For program point L479(line 479) no Hoare annotation was computed. [2018-11-18 15:52:08,328 INFO L425 ceAbstractionStarter]: For program point L446(line 446) no Hoare annotation was computed. [2018-11-18 15:52:08,329 INFO L425 ceAbstractionStarter]: For program point L413(line 413) no Hoare annotation was computed. [2018-11-18 15:52:08,329 INFO L425 ceAbstractionStarter]: For program point L84(lines 84 390) no Hoare annotation was computed. [2018-11-18 15:52:08,329 INFO L425 ceAbstractionStarter]: For program point calculate_outputFINAL(lines 30 575) no Hoare annotation was computed. [2018-11-18 15:52:08,329 INFO L425 ceAbstractionStarter]: For program point calculate_outputEXIT(lines 30 575) no Hoare annotation was computed. [2018-11-18 15:52:08,329 INFO L425 ceAbstractionStarter]: For program point L547-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 15:52:08,329 INFO L425 ceAbstractionStarter]: For program point L514-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 15:52:08,329 INFO L425 ceAbstractionStarter]: For program point L481-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 15:52:08,329 INFO L425 ceAbstractionStarter]: For program point L448-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 15:52:08,329 INFO L425 ceAbstractionStarter]: For program point L382(lines 382 390) no Hoare annotation was computed. [2018-11-18 15:52:08,329 INFO L425 ceAbstractionStarter]: For program point L415-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 15:52:08,329 INFO L425 ceAbstractionStarter]: For program point L316(lines 316 390) no Hoare annotation was computed. [2018-11-18 15:52:08,329 INFO L425 ceAbstractionStarter]: For program point L250(lines 250 390) no Hoare annotation was computed. [2018-11-18 15:52:08,329 INFO L425 ceAbstractionStarter]: For program point L548(line 548) no Hoare annotation was computed. [2018-11-18 15:52:08,329 INFO L425 ceAbstractionStarter]: For program point L515(line 515) no Hoare annotation was computed. [2018-11-18 15:52:08,329 INFO L425 ceAbstractionStarter]: For program point L482(line 482) no Hoare annotation was computed. [2018-11-18 15:52:08,330 INFO L425 ceAbstractionStarter]: For program point L449(line 449) no Hoare annotation was computed. [2018-11-18 15:52:08,330 INFO L425 ceAbstractionStarter]: For program point L416(line 416) no Hoare annotation was computed. [2018-11-18 15:52:08,330 INFO L425 ceAbstractionStarter]: For program point L218(lines 218 390) no Hoare annotation was computed. [2018-11-18 15:52:08,330 INFO L425 ceAbstractionStarter]: For program point L152(lines 152 390) no Hoare annotation was computed. [2018-11-18 15:52:08,330 INFO L425 ceAbstractionStarter]: For program point L119(lines 119 390) no Hoare annotation was computed. [2018-11-18 15:52:08,330 INFO L425 ceAbstractionStarter]: For program point L318(lines 318 390) no Hoare annotation was computed. [2018-11-18 15:52:08,330 INFO L425 ceAbstractionStarter]: For program point L186(lines 186 390) no Hoare annotation was computed. [2018-11-18 15:52:08,330 INFO L425 ceAbstractionStarter]: For program point L54(lines 54 390) no Hoare annotation was computed. [2018-11-18 15:52:08,330 INFO L425 ceAbstractionStarter]: For program point L550-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 15:52:08,330 INFO L425 ceAbstractionStarter]: For program point L517-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 15:52:08,330 INFO L425 ceAbstractionStarter]: For program point L484-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 15:52:08,330 INFO L425 ceAbstractionStarter]: For program point L451-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 15:52:08,330 INFO L425 ceAbstractionStarter]: For program point L418-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 15:52:08,330 INFO L425 ceAbstractionStarter]: For program point L286(lines 286 390) no Hoare annotation was computed. [2018-11-18 15:52:08,330 INFO L425 ceAbstractionStarter]: For program point L551(line 551) no Hoare annotation was computed. [2018-11-18 15:52:08,331 INFO L425 ceAbstractionStarter]: For program point L518(line 518) no Hoare annotation was computed. [2018-11-18 15:52:08,331 INFO L425 ceAbstractionStarter]: For program point L485(line 485) no Hoare annotation was computed. [2018-11-18 15:52:08,331 INFO L425 ceAbstractionStarter]: For program point L452(line 452) no Hoare annotation was computed. [2018-11-18 15:52:08,331 INFO L425 ceAbstractionStarter]: For program point L419(line 419) no Hoare annotation was computed. [2018-11-18 15:52:08,331 INFO L425 ceAbstractionStarter]: For program point L353(lines 353 390) no Hoare annotation was computed. [2018-11-18 15:52:08,331 INFO L425 ceAbstractionStarter]: For program point L189(lines 189 390) no Hoare annotation was computed. [2018-11-18 15:52:08,331 INFO L425 ceAbstractionStarter]: For program point L553-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 15:52:08,331 INFO L425 ceAbstractionStarter]: For program point L520-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 15:52:08,331 INFO L425 ceAbstractionStarter]: For program point L487-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 15:52:08,331 INFO L425 ceAbstractionStarter]: For program point L454-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 15:52:08,331 INFO L425 ceAbstractionStarter]: For program point L421-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 15:52:08,331 INFO L425 ceAbstractionStarter]: For program point L355(lines 355 390) no Hoare annotation was computed. [2018-11-18 15:52:08,331 INFO L425 ceAbstractionStarter]: For program point L256(lines 256 390) no Hoare annotation was computed. [2018-11-18 15:52:08,331 INFO L425 ceAbstractionStarter]: For program point L223(lines 223 390) no Hoare annotation was computed. [2018-11-18 15:52:08,331 INFO L425 ceAbstractionStarter]: For program point L124(lines 124 390) no Hoare annotation was computed. [2018-11-18 15:52:08,332 INFO L425 ceAbstractionStarter]: For program point L554(line 554) no Hoare annotation was computed. [2018-11-18 15:52:08,332 INFO L425 ceAbstractionStarter]: For program point L521(line 521) no Hoare annotation was computed. [2018-11-18 15:52:08,332 INFO L425 ceAbstractionStarter]: For program point L488(line 488) no Hoare annotation was computed. [2018-11-18 15:52:08,332 INFO L425 ceAbstractionStarter]: For program point L455(line 455) no Hoare annotation was computed. [2018-11-18 15:52:08,332 INFO L425 ceAbstractionStarter]: For program point L422(line 422) no Hoare annotation was computed. [2018-11-18 15:52:08,332 INFO L425 ceAbstractionStarter]: For program point L92(lines 92 390) no Hoare annotation was computed. [2018-11-18 15:52:08,332 INFO L421 ceAbstractionStarter]: At program point calculate_outputENTRY(lines 30 575) the Hoare annotation is: (let ((.cse17 (not (= ~a16~0 0))) (.cse19 (= ~a17~0 1)) (.cse20 (= ~a21~0 1)) (.cse16 (= ~a7~0 |old(~a7~0)|)) (.cse18 (= |old(~a8~0)| ~a8~0))) (let ((.cse3 (= ~a20~0 1)) (.cse10 (= 6 |old(~a16~0)|)) (.cse11 (and .cse16 .cse18)) (.cse8 (= 13 |old(~a8~0)|)) (.cse13 (not (= 0 |old(~a7~0)|))) (.cse1 (not (= 1 |old(~a20~0)|))) (.cse14 (not (= 15 |old(~a8~0)|))) (.cse12 (= ~a16~0 5)) (.cse15 (not (= 5 |old(~a16~0)|))) (.cse0 (not (= 1 |old(~a21~0)|))) (.cse2 (= 0 |old(~a16~0)|)) (.cse4 (not (= 8 ~a12~0))) (.cse21 (not (= 1 |old(~a7~0)|))) (.cse9 (and .cse17 .cse19 .cse20)) (.cse5 (= |calculate_output_#in~input| 0)) (.cse6 (= 0 |old(~a8~0)|)) (.cse7 (not (= 1 |old(~a17~0)|)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7) (or .cse0 .cse8 .cse2 .cse4 .cse9 .cse5 .cse6 .cse7) (or .cse10 .cse11) (or .cse5 (and (or .cse3 (= ~a20~0 0)) .cse12) (or .cse13 .cse0 .cse14 (not (= 0 |old(~a20~0)|)) .cse15 .cse4 .cse7)) (or .cse10 (not (= ~a16~0 6))) (or .cse10 .cse0 .cse9 .cse2 .cse4 .cse5 .cse6 .cse7) (or .cse0 .cse1 .cse2 .cse4 (and .cse16 .cse17 .cse18 .cse19 .cse20) .cse5 .cse6 .cse7) (or .cse8 .cse11) (or (= ~a16~0 4) (or .cse0 .cse1 (not (= 4 |old(~a16~0)|)) (not .cse8)) .cse4 .cse21 .cse5 .cse7) (or .cse13 .cse0 .cse4 .cse5 .cse7 .cse1 .cse14 .cse12 .cse15) (or .cse21 (and (= 1 ~a7~0) .cse18)) (or .cse0 .cse2 .cse4 .cse21 .cse9 .cse5 .cse6 .cse7)))) [2018-11-18 15:52:08,332 INFO L425 ceAbstractionStarter]: For program point L324(lines 324 390) no Hoare annotation was computed. [2018-11-18 15:52:08,332 INFO L425 ceAbstractionStarter]: For program point L556-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 15:52:08,332 INFO L425 ceAbstractionStarter]: For program point L523-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 15:52:08,333 INFO L425 ceAbstractionStarter]: For program point L490-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 15:52:08,333 INFO L425 ceAbstractionStarter]: For program point L457-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 15:52:08,333 INFO L425 ceAbstractionStarter]: For program point L391(lines 391 393) no Hoare annotation was computed. [2018-11-18 15:52:08,333 INFO L425 ceAbstractionStarter]: For program point L424-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 15:52:08,333 INFO L425 ceAbstractionStarter]: For program point L391-2(lines 30 575) no Hoare annotation was computed. [2018-11-18 15:52:08,333 INFO L425 ceAbstractionStarter]: For program point L292(lines 292 390) no Hoare annotation was computed. [2018-11-18 15:52:08,333 INFO L425 ceAbstractionStarter]: For program point L160(lines 160 390) no Hoare annotation was computed. [2018-11-18 15:52:08,333 INFO L425 ceAbstractionStarter]: For program point L557(line 557) no Hoare annotation was computed. [2018-11-18 15:52:08,333 INFO L425 ceAbstractionStarter]: For program point L524(line 524) no Hoare annotation was computed. [2018-11-18 15:52:08,333 INFO L425 ceAbstractionStarter]: For program point L491(line 491) no Hoare annotation was computed. [2018-11-18 15:52:08,333 INFO L425 ceAbstractionStarter]: For program point L458(line 458) no Hoare annotation was computed. [2018-11-18 15:52:08,333 INFO L425 ceAbstractionStarter]: For program point L425(line 425) no Hoare annotation was computed. [2018-11-18 15:52:08,333 INFO L425 ceAbstractionStarter]: For program point L392(line 392) no Hoare annotation was computed. [2018-11-18 15:52:08,333 INFO L425 ceAbstractionStarter]: For program point L194(lines 194 390) no Hoare annotation was computed. [2018-11-18 15:52:08,334 INFO L425 ceAbstractionStarter]: For program point L62(lines 62 390) no Hoare annotation was computed. [2018-11-18 15:52:08,334 INFO L425 ceAbstractionStarter]: For program point L261(lines 261 390) no Hoare annotation was computed. [2018-11-18 15:52:08,334 INFO L425 ceAbstractionStarter]: For program point L129(lines 129 390) no Hoare annotation was computed. [2018-11-18 15:52:08,334 INFO L425 ceAbstractionStarter]: For program point L559-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 15:52:08,334 INFO L425 ceAbstractionStarter]: For program point L526-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 15:52:08,334 INFO L425 ceAbstractionStarter]: For program point L493-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 15:52:08,334 INFO L425 ceAbstractionStarter]: For program point L460-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 15:52:08,334 INFO L425 ceAbstractionStarter]: For program point L427-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 15:52:08,334 INFO L425 ceAbstractionStarter]: For program point L361(lines 361 390) no Hoare annotation was computed. [2018-11-18 15:52:08,334 INFO L425 ceAbstractionStarter]: For program point L394-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 15:52:08,334 INFO L425 ceAbstractionStarter]: For program point L97(lines 97 390) no Hoare annotation was computed. [2018-11-18 15:52:08,334 INFO L425 ceAbstractionStarter]: For program point L31(lines 31 390) no Hoare annotation was computed. [2018-11-18 15:52:08,334 INFO L425 ceAbstractionStarter]: For program point L560(line 560) no Hoare annotation was computed. [2018-11-18 15:52:08,334 INFO L425 ceAbstractionStarter]: For program point L527(line 527) no Hoare annotation was computed. [2018-11-18 15:52:08,335 INFO L425 ceAbstractionStarter]: For program point L494(line 494) no Hoare annotation was computed. [2018-11-18 15:52:08,335 INFO L425 ceAbstractionStarter]: For program point L461(line 461) no Hoare annotation was computed. [2018-11-18 15:52:08,335 INFO L425 ceAbstractionStarter]: For program point L428(line 428) no Hoare annotation was computed. [2018-11-18 15:52:08,335 INFO L425 ceAbstractionStarter]: For program point L395(line 395) no Hoare annotation was computed. [2018-11-18 15:52:08,335 INFO L425 ceAbstractionStarter]: For program point L329(lines 329 390) no Hoare annotation was computed. [2018-11-18 15:52:08,335 INFO L425 ceAbstractionStarter]: For program point L197(lines 197 390) no Hoare annotation was computed. [2018-11-18 15:52:08,335 INFO L425 ceAbstractionStarter]: For program point L65(lines 65 390) no Hoare annotation was computed. [2018-11-18 15:52:08,335 INFO L425 ceAbstractionStarter]: For program point L363(lines 363 390) no Hoare annotation was computed. [2018-11-18 15:52:08,335 INFO L425 ceAbstractionStarter]: For program point L231(lines 231 390) no Hoare annotation was computed. [2018-11-18 15:52:08,335 INFO L425 ceAbstractionStarter]: For program point L165(lines 165 390) no Hoare annotation was computed. [2018-11-18 15:52:08,335 INFO L425 ceAbstractionStarter]: For program point L562-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 15:52:08,335 INFO L425 ceAbstractionStarter]: For program point L529-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 15:52:08,335 INFO L425 ceAbstractionStarter]: For program point L496-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 15:52:08,335 INFO L425 ceAbstractionStarter]: For program point L463-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 15:52:08,336 INFO L425 ceAbstractionStarter]: For program point L430-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 15:52:08,336 INFO L425 ceAbstractionStarter]: For program point L397-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 15:52:08,336 INFO L425 ceAbstractionStarter]: For program point L265(lines 265 390) no Hoare annotation was computed. [2018-11-18 15:52:08,336 INFO L425 ceAbstractionStarter]: For program point L563(line 563) no Hoare annotation was computed. [2018-11-18 15:52:08,336 INFO L425 ceAbstractionStarter]: For program point L530(line 530) no Hoare annotation was computed. [2018-11-18 15:52:08,336 INFO L425 ceAbstractionStarter]: For program point L497(line 497) no Hoare annotation was computed. [2018-11-18 15:52:08,336 INFO L425 ceAbstractionStarter]: For program point L464(line 464) no Hoare annotation was computed. [2018-11-18 15:52:08,336 INFO L425 ceAbstractionStarter]: For program point L431(line 431) no Hoare annotation was computed. [2018-11-18 15:52:08,336 INFO L425 ceAbstractionStarter]: For program point L398(line 398) no Hoare annotation was computed. [2018-11-18 15:52:08,336 INFO L425 ceAbstractionStarter]: For program point L365(lines 365 390) no Hoare annotation was computed. [2018-11-18 15:52:08,336 INFO L425 ceAbstractionStarter]: For program point L299(lines 299 390) no Hoare annotation was computed. [2018-11-18 15:52:08,336 INFO L425 ceAbstractionStarter]: For program point L35(lines 35 390) no Hoare annotation was computed. [2018-11-18 15:52:08,336 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-18 15:52:08,337 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 15:52:08,337 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-18 15:52:08,337 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-18 15:52:08,337 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)|)) (and (= ~a7~0 |old(~a7~0)|) (= ~a8~0 15) (= ~a17~0 1) (= ~a21~0 1) (= ~a20~0 1) (= ~a16~0 5)) (not (= 8 ~a12~0)) (not (= 1 |old(~a17~0)|))) [2018-11-18 15:52:08,337 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 577 594) no Hoare annotation was computed. [2018-11-18 15:52:08,337 INFO L421 ceAbstractionStarter]: At program point L591(line 591) the Hoare annotation is: (or (not (= 0 |old(~a7~0)|)) (not (= 1 |old(~a21~0)|)) (not (= 8 ~a12~0)) (and (not (= main_~input~0 0)) (= ~a17~0 1) (= ~a21~0 1) (= ~a20~0 1)) (not (= 1 |old(~a17~0)|)) (not (= ~a8~0 13)) (not (= 1 |old(~a20~0)|)) (not (= 15 |old(~a8~0)|)) (= 1 ~a7~0) (not (= 5 |old(~a16~0)|)) (not (= ~a16~0 6))) [2018-11-18 15:52:08,337 INFO L425 ceAbstractionStarter]: For program point L591-1(line 591) no Hoare annotation was computed. [2018-11-18 15:52:08,337 INFO L425 ceAbstractionStarter]: For program point L588(line 588) no Hoare annotation was computed. [2018-11-18 15:52:08,337 INFO L425 ceAbstractionStarter]: For program point L583-1(lines 583 593) no Hoare annotation was computed. [2018-11-18 15:52:08,338 INFO L421 ceAbstractionStarter]: At program point L583-3(lines 583 593) the Hoare annotation is: (or (not (= 0 |old(~a7~0)|)) (not (= 1 |old(~a21~0)|)) (not (= 8 ~a12~0)) (and (= ~a17~0 1) (= ~a20~0 1) (= ~a21~0 1)) (not (= 1 |old(~a17~0)|)) (not (= ~a8~0 13)) (not (= 1 |old(~a20~0)|)) (not (= 15 |old(~a8~0)|)) (= 1 ~a7~0) (not (= 5 |old(~a16~0)|)) (not (= ~a16~0 6))) [2018-11-18 15:52:08,338 INFO L425 ceAbstractionStarter]: For program point L583-4(lines 577 594) no Hoare annotation was computed. [2018-11-18 15:52:08,348 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 03:52:08 BoogieIcfgContainer [2018-11-18 15:52:08,348 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 15:52:08,348 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 15:52:08,348 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 15:52:08,349 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 15:52:08,349 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 03:51:49" (3/4) ... [2018-11-18 15:52:08,352 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-18 15:52:08,357 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-18 15:52:08,358 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure calculate_output [2018-11-18 15:52:08,358 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-18 15:52:08,368 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2018-11-18 15:52:08,369 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-18 15:52:08,387 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((!(0 == \old(a7)) || !(1 == \old(a21))) || !(8 == a12)) || ((a17 == 1 && a20 == 1) && a21 == 1)) || !(1 == \old(a17))) || !(a8 == 13)) || !(1 == \old(a20))) || !(15 == \old(a8))) || 1 == a7) || !(5 == \old(a16))) || !(a16 == 6) [2018-11-18 15:52:08,450 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_8dc0e988-dfa7-4029-abef-5c7b6b074805/bin-2019/utaipan/witness.graphml [2018-11-18 15:52:08,450 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 15:52:08,451 INFO L168 Benchmark]: Toolchain (without parser) took 21452.66 ms. Allocated memory was 1.0 GB in the beginning and 2.1 GB in the end (delta: 1.0 GB). Free memory was 950.3 MB in the beginning and 1.1 GB in the end (delta: -129.5 MB). Peak memory consumption was 917.0 MB. Max. memory is 11.5 GB. [2018-11-18 15:52:08,452 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 985.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 15:52:08,452 INFO L168 Benchmark]: CACSL2BoogieTranslator took 434.44 ms. Allocated memory is still 1.0 GB. Free memory was 950.3 MB in the beginning and 912.8 MB in the end (delta: 37.6 MB). Peak memory consumption was 37.6 MB. Max. memory is 11.5 GB. [2018-11-18 15:52:08,452 INFO L168 Benchmark]: Boogie Procedure Inliner took 72.24 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 123.2 MB). Free memory was 912.8 MB in the beginning and 1.1 GB in the end (delta: -203.2 MB). Peak memory consumption was 18.2 MB. Max. memory is 11.5 GB. [2018-11-18 15:52:08,452 INFO L168 Benchmark]: Boogie Preprocessor took 56.68 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. [2018-11-18 15:52:08,452 INFO L168 Benchmark]: RCFGBuilder took 1664.78 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: 109.5 MB). Peak memory consumption was 109.5 MB. Max. memory is 11.5 GB. [2018-11-18 15:52:08,453 INFO L168 Benchmark]: TraceAbstraction took 19118.74 ms. Allocated memory was 1.2 GB in the beginning and 2.1 GB in the end (delta: 923.3 MB). Free memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: -99.8 MB). Peak memory consumption was 823.5 MB. Max. memory is 11.5 GB. [2018-11-18 15:52:08,453 INFO L168 Benchmark]: Witness Printer took 101.90 ms. Allocated memory is still 2.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 23.0 MB). Peak memory consumption was 23.0 MB. Max. memory is 11.5 GB. [2018-11-18 15:52:08,455 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 985.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 434.44 ms. Allocated memory is still 1.0 GB. Free memory was 950.3 MB in the beginning and 912.8 MB in the end (delta: 37.6 MB). Peak memory consumption was 37.6 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 72.24 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 123.2 MB). Free memory was 912.8 MB in the beginning and 1.1 GB in the end (delta: -203.2 MB). Peak memory consumption was 18.2 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 56.68 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1664.78 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: 109.5 MB). Peak memory consumption was 109.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 19118.74 ms. Allocated memory was 1.2 GB in the beginning and 2.1 GB in the end (delta: 923.3 MB). Free memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: -99.8 MB). Peak memory consumption was 823.5 MB. Max. memory is 11.5 GB. * Witness Printer took 101.90 ms. Allocated memory is still 2.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 23.0 MB). Peak memory consumption was 23.0 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 512]: 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: (((((((((!(0 == \old(a7)) || !(1 == \old(a21))) || !(8 == a12)) || ((a17 == 1 && a20 == 1) && a21 == 1)) || !(1 == \old(a17))) || !(a8 == 13)) || !(1 == \old(a20))) || !(15 == \old(a8))) || 1 == a7) || !(5 == \old(a16))) || !(a16 == 6) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 208 locations, 1 error locations. SAFE Result, 19.0s OverallTime, 6 OverallIterations, 6 TraceHistogramMax, 13.1s AutomataDifference, 0.0s DeadEndRemovalTime, 1.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 895 SDtfs, 6000 SDslu, 1455 SDs, 0 SdLazy, 7243 SolverSat, 1832 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.0s Time, PredicateUnifierStatistics: 6 DeclaredPredicates, 984 GetRequests, 896 SyntacticMatches, 3 SemanticMatches, 85 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 319 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3243occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 1.6s AbstIntTime, 4 AbstIntIterations, 3 AbstIntStrong, 0.9965763476330232 AbsIntWeakeningRatio, 0.246 AbsIntAvgWeakeningVarsNumRemoved, 27.634 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 6 MinimizatonAttempts, 96 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 110 PreInvPairs, 236 NumberOfFragments, 521 HoareAnnotationTreeSize, 110 FomulaSimplifications, 9343 FormulaSimplificationTreeSizeReduction, 0.2s HoareSimplificationTime, 7 FomulaSimplificationsInter, 2860 FormulaSimplificationTreeSizeReductionInter, 0.8s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 1151 NumberOfCodeBlocks, 1151 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 1343 ConstructedInterpolants, 0 QuantifiedInterpolants, 346801 SizeOfPredicates, 1 NumberOfNonLiveVariables, 636 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 8 InterpolantComputations, 2 PerfectInterpolantSequences, 736/809 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...