./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem01_label36.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_c8c9f850-7a3b-4643-b63e-624ad5a0f795/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_c8c9f850-7a3b-4643-b63e-624ad5a0f795/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_c8c9f850-7a3b-4643-b63e-624ad5a0f795/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_c8c9f850-7a3b-4643-b63e-624ad5a0f795/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem01_label36.c -s /tmp/vcloud-vcloud-master/worker/working_dir_c8c9f850-7a3b-4643-b63e-624ad5a0f795/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_c8c9f850-7a3b-4643-b63e-624ad5a0f795/bin/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 c5d4c7b38a296f79910d0f6d17d9b88307731454 .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-10-22 11:26:57,869 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 11:26:57,871 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 11:26:57,881 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 11:26:57,881 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 11:26:57,882 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 11:26:57,883 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 11:26:57,885 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 11:26:57,889 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 11:26:57,890 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 11:26:57,891 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 11:26:57,892 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 11:26:57,892 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 11:26:57,893 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 11:26:57,893 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 11:26:57,898 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 11:26:57,901 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 11:26:57,902 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 11:26:57,903 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 11:26:57,905 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 11:26:57,906 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 11:26:57,907 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 11:26:57,907 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 11:26:57,908 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 11:26:57,910 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 11:26:57,910 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 11:26:57,910 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 11:26:57,911 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 11:26:57,911 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 11:26:57,912 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 11:26:57,912 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 11:26:57,912 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 11:26:57,913 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 11:26:57,914 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 11:26:57,914 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 11:26:57,914 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 11:26:57,915 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 11:26:57,915 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 11:26:57,915 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 11:26:57,916 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 11:26:57,916 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 11:26:57,917 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_c8c9f850-7a3b-4643-b63e-624ad5a0f795/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-10-22 11:26:57,933 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 11:26:57,933 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 11:26:57,934 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-22 11:26:57,934 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-22 11:26:57,934 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-22 11:26:57,935 INFO L138 SettingsManager]: * Explicit value domain=true [2019-10-22 11:26:57,935 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-10-22 11:26:57,935 INFO L138 SettingsManager]: * Octagon Domain=false [2019-10-22 11:26:57,935 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-10-22 11:26:57,935 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-10-22 11:26:57,935 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-10-22 11:26:57,935 INFO L138 SettingsManager]: * Interval Domain=false [2019-10-22 11:26:57,936 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 11:26:57,936 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 11:26:57,936 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 11:26:57,936 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 11:26:57,937 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 11:26:57,937 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 11:26:57,937 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 11:26:57,937 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 11:26:57,937 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 11:26:57,937 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 11:26:57,937 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 11:26:57,938 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 11:26:57,938 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 11:26:57,938 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 11:26:57,938 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 11:26:57,939 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 11:26:57,939 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 11:26:57,939 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 11:26:57,940 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 11:26:57,940 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-10-22 11:26:57,940 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 11:26:57,940 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 11:26:57,940 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-22 11:26:57,940 INFO L138 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_c8c9f850-7a3b-4643-b63e-624ad5a0f795/bin/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 -> c5d4c7b38a296f79910d0f6d17d9b88307731454 [2019-10-22 11:26:57,975 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 11:26:57,985 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 11:26:57,988 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 11:26:57,990 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 11:26:57,990 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 11:26:57,991 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_c8c9f850-7a3b-4643-b63e-624ad5a0f795/bin/utaipan/../../sv-benchmarks/c/eca-rers2012/Problem01_label36.c [2019-10-22 11:26:58,047 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_c8c9f850-7a3b-4643-b63e-624ad5a0f795/bin/utaipan/data/085970d88/fe5b309811ad4514ba3c312ab3055075/FLAG7200cd1f4 [2019-10-22 11:26:58,487 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 11:26:58,495 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_c8c9f850-7a3b-4643-b63e-624ad5a0f795/sv-benchmarks/c/eca-rers2012/Problem01_label36.c [2019-10-22 11:26:58,509 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_c8c9f850-7a3b-4643-b63e-624ad5a0f795/bin/utaipan/data/085970d88/fe5b309811ad4514ba3c312ab3055075/FLAG7200cd1f4 [2019-10-22 11:26:58,781 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_c8c9f850-7a3b-4643-b63e-624ad5a0f795/bin/utaipan/data/085970d88/fe5b309811ad4514ba3c312ab3055075 [2019-10-22 11:26:58,784 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 11:26:58,785 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 11:26:58,787 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 11:26:58,787 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 11:26:58,790 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 11:26:58,791 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:26:58" (1/1) ... [2019-10-22 11:26:58,793 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ab51c6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:26:58, skipping insertion in model container [2019-10-22 11:26:58,794 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:26:58" (1/1) ... [2019-10-22 11:26:58,800 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 11:26:58,845 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 11:26:59,249 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:26:59,254 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 11:26:59,335 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:26:59,352 INFO L192 MainTranslator]: Completed translation [2019-10-22 11:26:59,352 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:26:59 WrapperNode [2019-10-22 11:26:59,352 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 11:26:59,353 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 11:26:59,353 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 11:26:59,353 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 11:26:59,361 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:26:59" (1/1) ... [2019-10-22 11:26:59,375 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:26:59" (1/1) ... [2019-10-22 11:26:59,421 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 11:26:59,422 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 11:26:59,422 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 11:26:59,422 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 11:26:59,430 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:26:59" (1/1) ... [2019-10-22 11:26:59,430 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:26:59" (1/1) ... [2019-10-22 11:26:59,434 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:26:59" (1/1) ... [2019-10-22 11:26:59,434 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:26:59" (1/1) ... [2019-10-22 11:26:59,449 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:26:59" (1/1) ... [2019-10-22 11:26:59,464 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:26:59" (1/1) ... [2019-10-22 11:26:59,469 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:26:59" (1/1) ... [2019-10-22 11:26:59,476 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 11:26:59,476 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 11:26:59,476 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 11:26:59,476 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 11:26:59,479 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:26:59" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c8c9f850-7a3b-4643-b63e-624ad5a0f795/bin/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 [2019-10-22 11:26:59,537 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 11:26:59,537 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 11:27:00,677 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 11:27:00,677 INFO L284 CfgBuilder]: Removed 7 assume(true) statements. [2019-10-22 11:27:00,678 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:27:00 BoogieIcfgContainer [2019-10-22 11:27:00,679 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 11:27:00,679 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 11:27:00,680 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 11:27:00,682 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 11:27:00,683 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 11:26:58" (1/3) ... [2019-10-22 11:27:00,683 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54359a9b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:27:00, skipping insertion in model container [2019-10-22 11:27:00,683 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:26:59" (2/3) ... [2019-10-22 11:27:00,684 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54359a9b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:27:00, skipping insertion in model container [2019-10-22 11:27:00,684 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:27:00" (3/3) ... [2019-10-22 11:27:00,685 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem01_label36.c [2019-10-22 11:27:00,694 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 11:27:00,706 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-22 11:27:00,718 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-22 11:27:00,741 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 11:27:00,741 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-22 11:27:00,741 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 11:27:00,741 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 11:27:00,741 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 11:27:00,741 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 11:27:00,742 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 11:27:00,742 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 11:27:00,758 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states. [2019-10-22 11:27:00,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2019-10-22 11:27:00,767 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:27:00,768 INFO L380 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] [2019-10-22 11:27:00,770 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:27:00,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:27:00,775 INFO L82 PathProgramCache]: Analyzing trace with hash 2059373479, now seen corresponding path program 1 times [2019-10-22 11:27:00,784 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:27:00,784 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1715640601] [2019-10-22 11:27:00,784 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:27:00,784 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:27:00,784 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:27:00,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:27:01,161 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:27:01,161 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1715640601] [2019-10-22 11:27:01,162 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:27:01,162 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 11:27:01,163 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1240509217] [2019-10-22 11:27:01,167 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-22 11:27:01,168 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:27:01,181 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-22 11:27:01,182 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-22 11:27:01,184 INFO L87 Difference]: Start difference. First operand 198 states. Second operand 4 states. [2019-10-22 11:27:02,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:27:02,290 INFO L93 Difference]: Finished difference Result 662 states and 1178 transitions. [2019-10-22 11:27:02,294 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-22 11:27:02,296 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 102 [2019-10-22 11:27:02,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:27:02,311 INFO L225 Difference]: With dead ends: 662 [2019-10-22 11:27:02,311 INFO L226 Difference]: Without dead ends: 397 [2019-10-22 11:27:02,314 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-22 11:27:02,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 397 states. [2019-10-22 11:27:02,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 397 to 266. [2019-10-22 11:27:02,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 266 states. [2019-10-22 11:27:02,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 380 transitions. [2019-10-22 11:27:02,365 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 380 transitions. Word has length 102 [2019-10-22 11:27:02,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:27:02,366 INFO L462 AbstractCegarLoop]: Abstraction has 266 states and 380 transitions. [2019-10-22 11:27:02,366 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-22 11:27:02,366 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 380 transitions. [2019-10-22 11:27:02,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2019-10-22 11:27:02,369 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:27:02,369 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:27:02,369 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:27:02,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:27:02,370 INFO L82 PathProgramCache]: Analyzing trace with hash 1045586682, now seen corresponding path program 1 times [2019-10-22 11:27:02,370 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:27:02,370 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1430328612] [2019-10-22 11:27:02,371 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:27:02,371 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:27:02,371 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:27:02,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:27:02,420 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:27:02,420 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1430328612] [2019-10-22 11:27:02,421 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:27:02,421 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 11:27:02,421 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [965690557] [2019-10-22 11:27:02,423 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-22 11:27:02,423 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:27:02,423 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-22 11:27:02,423 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-22 11:27:02,423 INFO L87 Difference]: Start difference. First operand 266 states and 380 transitions. Second operand 4 states. [2019-10-22 11:27:03,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:27:03,070 INFO L93 Difference]: Finished difference Result 1054 states and 1512 transitions. [2019-10-22 11:27:03,070 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-22 11:27:03,071 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 108 [2019-10-22 11:27:03,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:27:03,074 INFO L225 Difference]: With dead ends: 1054 [2019-10-22 11:27:03,074 INFO L226 Difference]: Without dead ends: 790 [2019-10-22 11:27:03,079 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-22 11:27:03,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 790 states. [2019-10-22 11:27:03,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 790 to 790. [2019-10-22 11:27:03,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 790 states. [2019-10-22 11:27:03,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 790 states to 790 states and 1068 transitions. [2019-10-22 11:27:03,146 INFO L78 Accepts]: Start accepts. Automaton has 790 states and 1068 transitions. Word has length 108 [2019-10-22 11:27:03,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:27:03,146 INFO L462 AbstractCegarLoop]: Abstraction has 790 states and 1068 transitions. [2019-10-22 11:27:03,146 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-22 11:27:03,147 INFO L276 IsEmpty]: Start isEmpty. Operand 790 states and 1068 transitions. [2019-10-22 11:27:03,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2019-10-22 11:27:03,153 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:27:03,153 INFO L380 BasicCegarLoop]: trace histogram [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] [2019-10-22 11:27:03,153 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:27:03,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:27:03,154 INFO L82 PathProgramCache]: Analyzing trace with hash -1471586822, now seen corresponding path program 1 times [2019-10-22 11:27:03,154 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:27:03,154 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1730807265] [2019-10-22 11:27:03,154 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:27:03,154 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:27:03,154 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:27:03,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:27:03,277 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:27:03,277 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1730807265] [2019-10-22 11:27:03,277 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:27:03,278 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 11:27:03,278 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2002211770] [2019-10-22 11:27:03,278 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 11:27:03,278 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:27:03,279 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 11:27:03,279 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:27:03,279 INFO L87 Difference]: Start difference. First operand 790 states and 1068 transitions. Second operand 3 states. [2019-10-22 11:27:03,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:27:03,702 INFO L93 Difference]: Finished difference Result 2102 states and 2852 transitions. [2019-10-22 11:27:03,703 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 11:27:03,703 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 109 [2019-10-22 11:27:03,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:27:03,707 INFO L225 Difference]: With dead ends: 2102 [2019-10-22 11:27:03,707 INFO L226 Difference]: Without dead ends: 1183 [2019-10-22 11:27:03,709 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:27:03,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1183 states. [2019-10-22 11:27:03,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1183 to 1052. [2019-10-22 11:27:03,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1052 states. [2019-10-22 11:27:03,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1052 states to 1052 states and 1319 transitions. [2019-10-22 11:27:03,741 INFO L78 Accepts]: Start accepts. Automaton has 1052 states and 1319 transitions. Word has length 109 [2019-10-22 11:27:03,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:27:03,741 INFO L462 AbstractCegarLoop]: Abstraction has 1052 states and 1319 transitions. [2019-10-22 11:27:03,741 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 11:27:03,741 INFO L276 IsEmpty]: Start isEmpty. Operand 1052 states and 1319 transitions. [2019-10-22 11:27:03,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2019-10-22 11:27:03,744 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:27:03,745 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:27:03,745 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:27:03,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:27:03,745 INFO L82 PathProgramCache]: Analyzing trace with hash 818956648, now seen corresponding path program 1 times [2019-10-22 11:27:03,745 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:27:03,745 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1247222855] [2019-10-22 11:27:03,746 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:27:03,746 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:27:03,746 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:27:03,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:27:03,792 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-10-22 11:27:03,792 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1247222855] [2019-10-22 11:27:03,792 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:27:03,792 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-22 11:27:03,792 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1736815805] [2019-10-22 11:27:03,793 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 11:27:03,793 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:27:03,793 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 11:27:03,793 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:27:03,793 INFO L87 Difference]: Start difference. First operand 1052 states and 1319 transitions. Second operand 3 states. [2019-10-22 11:27:04,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:27:04,172 INFO L93 Difference]: Finished difference Result 2757 states and 3480 transitions. [2019-10-22 11:27:04,172 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 11:27:04,172 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 117 [2019-10-22 11:27:04,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:27:04,177 INFO L225 Difference]: With dead ends: 2757 [2019-10-22 11:27:04,177 INFO L226 Difference]: Without dead ends: 1576 [2019-10-22 11:27:04,179 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:27:04,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1576 states. [2019-10-22 11:27:04,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1576 to 1445. [2019-10-22 11:27:04,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1445 states. [2019-10-22 11:27:04,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1445 states to 1445 states and 1638 transitions. [2019-10-22 11:27:04,206 INFO L78 Accepts]: Start accepts. Automaton has 1445 states and 1638 transitions. Word has length 117 [2019-10-22 11:27:04,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:27:04,207 INFO L462 AbstractCegarLoop]: Abstraction has 1445 states and 1638 transitions. [2019-10-22 11:27:04,207 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 11:27:04,207 INFO L276 IsEmpty]: Start isEmpty. Operand 1445 states and 1638 transitions. [2019-10-22 11:27:04,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2019-10-22 11:27:04,209 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:27:04,209 INFO L380 BasicCegarLoop]: trace histogram [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] [2019-10-22 11:27:04,209 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:27:04,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:27:04,210 INFO L82 PathProgramCache]: Analyzing trace with hash -343867564, now seen corresponding path program 1 times [2019-10-22 11:27:04,210 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:27:04,210 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2022131799] [2019-10-22 11:27:04,210 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:27:04,210 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:27:04,211 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:27:04,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:27:04,281 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2019-10-22 11:27:04,281 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2022131799] [2019-10-22 11:27:04,281 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:27:04,281 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 11:27:04,282 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2049544597] [2019-10-22 11:27:04,282 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-22 11:27:04,282 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:27:04,283 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-22 11:27:04,283 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-22 11:27:04,283 INFO L87 Difference]: Start difference. First operand 1445 states and 1638 transitions. Second operand 4 states. [2019-10-22 11:27:04,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:27:04,793 INFO L93 Difference]: Finished difference Result 3027 states and 3424 transitions. [2019-10-22 11:27:04,793 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-22 11:27:04,793 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 125 [2019-10-22 11:27:04,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:27:04,798 INFO L225 Difference]: With dead ends: 3027 [2019-10-22 11:27:04,798 INFO L226 Difference]: Without dead ends: 1584 [2019-10-22 11:27:04,800 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-10-22 11:27:04,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1584 states. [2019-10-22 11:27:04,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1584 to 1576. [2019-10-22 11:27:04,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1576 states. [2019-10-22 11:27:04,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1576 states to 1576 states and 1772 transitions. [2019-10-22 11:27:04,829 INFO L78 Accepts]: Start accepts. Automaton has 1576 states and 1772 transitions. Word has length 125 [2019-10-22 11:27:04,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:27:04,829 INFO L462 AbstractCegarLoop]: Abstraction has 1576 states and 1772 transitions. [2019-10-22 11:27:04,829 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-22 11:27:04,829 INFO L276 IsEmpty]: Start isEmpty. Operand 1576 states and 1772 transitions. [2019-10-22 11:27:04,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2019-10-22 11:27:04,831 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:27:04,832 INFO L380 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 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] [2019-10-22 11:27:04,832 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:27:04,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:27:04,832 INFO L82 PathProgramCache]: Analyzing trace with hash -1453681636, now seen corresponding path program 1 times [2019-10-22 11:27:04,832 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:27:04,833 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1817395467] [2019-10-22 11:27:04,833 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:27:04,833 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:27:04,833 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:27:04,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:27:04,884 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:27:04,884 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1817395467] [2019-10-22 11:27:04,884 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:27:04,885 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-22 11:27:04,885 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1762010476] [2019-10-22 11:27:04,885 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-22 11:27:04,885 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:27:04,885 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-22 11:27:04,886 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-22 11:27:04,886 INFO L87 Difference]: Start difference. First operand 1576 states and 1772 transitions. Second operand 4 states. [2019-10-22 11:27:05,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:27:05,417 INFO L93 Difference]: Finished difference Result 3674 states and 4184 transitions. [2019-10-22 11:27:05,417 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-22 11:27:05,417 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 129 [2019-10-22 11:27:05,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:27:05,422 INFO L225 Difference]: With dead ends: 3674 [2019-10-22 11:27:05,422 INFO L226 Difference]: Without dead ends: 2231 [2019-10-22 11:27:05,424 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-22 11:27:05,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2231 states. [2019-10-22 11:27:05,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2231 to 1838. [2019-10-22 11:27:05,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1838 states. [2019-10-22 11:27:05,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1838 states to 1838 states and 2024 transitions. [2019-10-22 11:27:05,459 INFO L78 Accepts]: Start accepts. Automaton has 1838 states and 2024 transitions. Word has length 129 [2019-10-22 11:27:05,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:27:05,459 INFO L462 AbstractCegarLoop]: Abstraction has 1838 states and 2024 transitions. [2019-10-22 11:27:05,459 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-22 11:27:05,459 INFO L276 IsEmpty]: Start isEmpty. Operand 1838 states and 2024 transitions. [2019-10-22 11:27:05,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2019-10-22 11:27:05,462 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:27:05,462 INFO L380 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:27:05,463 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:27:05,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:27:05,463 INFO L82 PathProgramCache]: Analyzing trace with hash 1636914809, now seen corresponding path program 1 times [2019-10-22 11:27:05,463 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:27:05,463 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [273870508] [2019-10-22 11:27:05,463 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:27:05,463 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:27:05,464 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:27:05,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:27:05,595 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2019-10-22 11:27:05,595 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [273870508] [2019-10-22 11:27:05,596 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:27:05,596 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-22 11:27:05,596 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [339651299] [2019-10-22 11:27:05,596 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-22 11:27:05,596 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:27:05,597 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-22 11:27:05,597 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2019-10-22 11:27:05,597 INFO L87 Difference]: Start difference. First operand 1838 states and 2024 transitions. Second operand 8 states. [2019-10-22 11:27:06,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:27:06,433 INFO L93 Difference]: Finished difference Result 3981 states and 4389 transitions. [2019-10-22 11:27:06,434 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-22 11:27:06,434 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 143 [2019-10-22 11:27:06,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:27:06,440 INFO L225 Difference]: With dead ends: 3981 [2019-10-22 11:27:06,440 INFO L226 Difference]: Without dead ends: 2276 [2019-10-22 11:27:06,442 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2019-10-22 11:27:06,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2276 states. [2019-10-22 11:27:06,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2276 to 1969. [2019-10-22 11:27:06,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1969 states. [2019-10-22 11:27:06,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1969 states to 1969 states and 2156 transitions. [2019-10-22 11:27:06,478 INFO L78 Accepts]: Start accepts. Automaton has 1969 states and 2156 transitions. Word has length 143 [2019-10-22 11:27:06,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:27:06,479 INFO L462 AbstractCegarLoop]: Abstraction has 1969 states and 2156 transitions. [2019-10-22 11:27:06,479 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-22 11:27:06,479 INFO L276 IsEmpty]: Start isEmpty. Operand 1969 states and 2156 transitions. [2019-10-22 11:27:06,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2019-10-22 11:27:06,482 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:27:06,482 INFO L380 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2019-10-22 11:27:06,483 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:27:06,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:27:06,483 INFO L82 PathProgramCache]: Analyzing trace with hash -1350213335, now seen corresponding path program 1 times [2019-10-22 11:27:06,483 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:27:06,483 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2075847686] [2019-10-22 11:27:06,483 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:27:06,484 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:27:06,484 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:27:06,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:27:06,611 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 116 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:27:06,611 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2075847686] [2019-10-22 11:27:06,611 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:27:06,611 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-22 11:27:06,612 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [816546228] [2019-10-22 11:27:06,612 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-22 11:27:06,612 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:27:06,612 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-22 11:27:06,613 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2019-10-22 11:27:06,613 INFO L87 Difference]: Start difference. First operand 1969 states and 2156 transitions. Second operand 6 states. [2019-10-22 11:27:07,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:27:07,305 INFO L93 Difference]: Finished difference Result 4207 states and 4601 transitions. [2019-10-22 11:27:07,307 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-22 11:27:07,308 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 176 [2019-10-22 11:27:07,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:27:07,314 INFO L225 Difference]: With dead ends: 4207 [2019-10-22 11:27:07,314 INFO L226 Difference]: Without dead ends: 2371 [2019-10-22 11:27:07,317 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2019-10-22 11:27:07,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2371 states. [2019-10-22 11:27:07,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2371 to 1838. [2019-10-22 11:27:07,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1838 states. [2019-10-22 11:27:07,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1838 states to 1838 states and 1972 transitions. [2019-10-22 11:27:07,357 INFO L78 Accepts]: Start accepts. Automaton has 1838 states and 1972 transitions. Word has length 176 [2019-10-22 11:27:07,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:27:07,357 INFO L462 AbstractCegarLoop]: Abstraction has 1838 states and 1972 transitions. [2019-10-22 11:27:07,357 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-22 11:27:07,358 INFO L276 IsEmpty]: Start isEmpty. Operand 1838 states and 1972 transitions. [2019-10-22 11:27:07,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2019-10-22 11:27:07,364 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:27:07,364 INFO L380 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:27:07,365 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:27:07,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:27:07,365 INFO L82 PathProgramCache]: Analyzing trace with hash -800900639, now seen corresponding path program 1 times [2019-10-22 11:27:07,365 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:27:07,365 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1243962652] [2019-10-22 11:27:07,366 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:27:07,366 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:27:07,366 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:27:07,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:27:07,580 INFO L134 CoverageAnalysis]: Checked inductivity of 357 backedges. 240 proven. 0 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2019-10-22 11:27:07,581 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1243962652] [2019-10-22 11:27:07,581 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:27:07,581 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-22 11:27:07,581 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1003021976] [2019-10-22 11:27:07,582 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-22 11:27:07,582 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:27:07,582 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-22 11:27:07,582 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-10-22 11:27:07,582 INFO L87 Difference]: Start difference. First operand 1838 states and 1972 transitions. Second operand 6 states. [2019-10-22 11:27:08,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:27:08,084 INFO L93 Difference]: Finished difference Result 3704 states and 3991 transitions. [2019-10-22 11:27:08,084 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-22 11:27:08,084 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 274 [2019-10-22 11:27:08,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:27:08,084 INFO L225 Difference]: With dead ends: 3704 [2019-10-22 11:27:08,085 INFO L226 Difference]: Without dead ends: 0 [2019-10-22 11:27:08,087 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-10-22 11:27:08,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-22 11:27:08,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-22 11:27:08,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-22 11:27:08,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-22 11:27:08,088 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 274 [2019-10-22 11:27:08,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:27:08,088 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-22 11:27:08,088 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-22 11:27:08,089 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-22 11:27:08,089 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-22 11:27:08,094 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-22 11:27:08,245 WARN L191 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 70 [2019-10-22 11:27:08,512 WARN L191 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 26 [2019-10-22 11:27:08,696 WARN L191 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 26 [2019-10-22 11:27:08,699 INFO L443 ceAbstractionStarter]: For program point L333(lines 333 390) no Hoare annotation was computed. [2019-10-22 11:27:08,699 INFO L443 ceAbstractionStarter]: For program point L102(lines 102 390) no Hoare annotation was computed. [2019-10-22 11:27:08,699 INFO L443 ceAbstractionStarter]: For program point L565-1(lines 30 575) no Hoare annotation was computed. [2019-10-22 11:27:08,699 INFO L443 ceAbstractionStarter]: For program point L532-1(lines 30 575) no Hoare annotation was computed. [2019-10-22 11:27:08,699 INFO L443 ceAbstractionStarter]: For program point L499-1(lines 30 575) no Hoare annotation was computed. [2019-10-22 11:27:08,699 INFO L443 ceAbstractionStarter]: For program point L466-1(lines 30 575) no Hoare annotation was computed. [2019-10-22 11:27:08,699 INFO L443 ceAbstractionStarter]: For program point L433-1(lines 30 575) no Hoare annotation was computed. [2019-10-22 11:27:08,699 INFO L443 ceAbstractionStarter]: For program point L400-1(lines 30 575) no Hoare annotation was computed. [2019-10-22 11:27:08,699 INFO L443 ceAbstractionStarter]: For program point L268(lines 268 390) no Hoare annotation was computed. [2019-10-22 11:27:08,699 INFO L443 ceAbstractionStarter]: For program point L136(lines 136 390) no Hoare annotation was computed. [2019-10-22 11:27:08,700 INFO L443 ceAbstractionStarter]: For program point L566(line 566) no Hoare annotation was computed. [2019-10-22 11:27:08,700 INFO L443 ceAbstractionStarter]: For program point L533(line 533) no Hoare annotation was computed. [2019-10-22 11:27:08,700 INFO L443 ceAbstractionStarter]: For program point L500(line 500) no Hoare annotation was computed. [2019-10-22 11:27:08,700 INFO L443 ceAbstractionStarter]: For program point L467(line 467) no Hoare annotation was computed. [2019-10-22 11:27:08,700 INFO L443 ceAbstractionStarter]: For program point L434(line 434) no Hoare annotation was computed. [2019-10-22 11:27:08,700 INFO L443 ceAbstractionStarter]: For program point L401(line 401) no Hoare annotation was computed. [2019-10-22 11:27:08,700 INFO L443 ceAbstractionStarter]: For program point L203(lines 203 390) no Hoare annotation was computed. [2019-10-22 11:27:08,700 INFO L443 ceAbstractionStarter]: For program point L72(lines 72 390) no Hoare annotation was computed. [2019-10-22 11:27:08,700 INFO L443 ceAbstractionStarter]: For program point L568-1(lines 30 575) no Hoare annotation was computed. [2019-10-22 11:27:08,700 INFO L443 ceAbstractionStarter]: For program point L535-1(lines 30 575) no Hoare annotation was computed. [2019-10-22 11:27:08,700 INFO L443 ceAbstractionStarter]: For program point L502-1(lines 30 575) no Hoare annotation was computed. [2019-10-22 11:27:08,700 INFO L443 ceAbstractionStarter]: For program point L469-1(lines 30 575) no Hoare annotation was computed. [2019-10-22 11:27:08,701 INFO L443 ceAbstractionStarter]: For program point L436-1(lines 30 575) no Hoare annotation was computed. [2019-10-22 11:27:08,701 INFO L443 ceAbstractionStarter]: For program point L403-1(lines 30 575) no Hoare annotation was computed. [2019-10-22 11:27:08,701 INFO L443 ceAbstractionStarter]: For program point L337(lines 337 390) no Hoare annotation was computed. [2019-10-22 11:27:08,701 INFO L443 ceAbstractionStarter]: For program point L238(lines 238 390) no Hoare annotation was computed. [2019-10-22 11:27:08,701 INFO L443 ceAbstractionStarter]: For program point L569(line 569) no Hoare annotation was computed. [2019-10-22 11:27:08,701 INFO L443 ceAbstractionStarter]: For program point L536(line 536) no Hoare annotation was computed. [2019-10-22 11:27:08,701 INFO L443 ceAbstractionStarter]: For program point L503(line 503) no Hoare annotation was computed. [2019-10-22 11:27:08,701 INFO L443 ceAbstractionStarter]: For program point L470(line 470) no Hoare annotation was computed. [2019-10-22 11:27:08,701 INFO L443 ceAbstractionStarter]: For program point L437(line 437) no Hoare annotation was computed. [2019-10-22 11:27:08,701 INFO L443 ceAbstractionStarter]: For program point L404(line 404) no Hoare annotation was computed. [2019-10-22 11:27:08,701 INFO L443 ceAbstractionStarter]: For program point L173(lines 173 390) no Hoare annotation was computed. [2019-10-22 11:27:08,701 INFO L443 ceAbstractionStarter]: For program point L140(lines 140 390) no Hoare annotation was computed. [2019-10-22 11:27:08,701 INFO L443 ceAbstractionStarter]: For program point L372(lines 372 390) no Hoare annotation was computed. [2019-10-22 11:27:08,702 INFO L443 ceAbstractionStarter]: For program point L306(lines 306 390) no Hoare annotation was computed. [2019-10-22 11:27:08,702 INFO L443 ceAbstractionStarter]: For program point L273(lines 273 390) no Hoare annotation was computed. [2019-10-22 11:27:08,702 INFO L443 ceAbstractionStarter]: For program point L108(lines 108 390) no Hoare annotation was computed. [2019-10-22 11:27:08,702 INFO L443 ceAbstractionStarter]: For program point L571-1(lines 571 573) no Hoare annotation was computed. [2019-10-22 11:27:08,702 INFO L443 ceAbstractionStarter]: For program point L538-1(lines 30 575) no Hoare annotation was computed. [2019-10-22 11:27:08,702 INFO L443 ceAbstractionStarter]: For program point L505-1(lines 30 575) no Hoare annotation was computed. [2019-10-22 11:27:08,702 INFO L443 ceAbstractionStarter]: For program point L472-1(lines 30 575) no Hoare annotation was computed. [2019-10-22 11:27:08,705 INFO L443 ceAbstractionStarter]: For program point L439-1(lines 30 575) no Hoare annotation was computed. [2019-10-22 11:27:08,705 INFO L443 ceAbstractionStarter]: For program point L406-1(lines 30 575) no Hoare annotation was computed. [2019-10-22 11:27:08,705 INFO L443 ceAbstractionStarter]: For program point L208(lines 208 390) no Hoare annotation was computed. [2019-10-22 11:27:08,705 INFO L443 ceAbstractionStarter]: For program point L43(lines 43 390) no Hoare annotation was computed. [2019-10-22 11:27:08,705 INFO L443 ceAbstractionStarter]: For program point L572(line 572) no Hoare annotation was computed. [2019-10-22 11:27:08,705 INFO L443 ceAbstractionStarter]: For program point L539(line 539) no Hoare annotation was computed. [2019-10-22 11:27:08,706 INFO L443 ceAbstractionStarter]: For program point L506(line 506) no Hoare annotation was computed. [2019-10-22 11:27:08,706 INFO L443 ceAbstractionStarter]: For program point L473(line 473) no Hoare annotation was computed. [2019-10-22 11:27:08,706 INFO L443 ceAbstractionStarter]: For program point L440(line 440) no Hoare annotation was computed. [2019-10-22 11:27:08,706 INFO L443 ceAbstractionStarter]: For program point L407(line 407) no Hoare annotation was computed. [2019-10-22 11:27:08,706 INFO L443 ceAbstractionStarter]: For program point L144(lines 144 390) no Hoare annotation was computed. [2019-10-22 11:27:08,707 INFO L439 ceAbstractionStarter]: At program point L574(lines 30 575) the Hoare annotation is: (let ((.cse4 (= ~a16~0 6)) (.cse0 (not (= ~a8~0 13))) (.cse1 (= ~a17~0 1)) (.cse2 (= ~a21~0 1)) (.cse3 (= ~a20~0 1))) (or (and .cse0 (= 5 ~a16~0)) (= 1 ~a7~0) (and .cse1 .cse2 .cse3 .cse4) (and .cse0 .cse4) (and (and .cse0 .cse1 .cse2) .cse3) (= ~a16~0 4))) [2019-10-22 11:27:08,707 INFO L443 ceAbstractionStarter]: For program point L541-1(lines 30 575) no Hoare annotation was computed. [2019-10-22 11:27:08,709 INFO L443 ceAbstractionStarter]: For program point L508-1(lines 30 575) no Hoare annotation was computed. [2019-10-22 11:27:08,709 INFO L443 ceAbstractionStarter]: For program point L475-1(lines 30 575) no Hoare annotation was computed. [2019-10-22 11:27:08,709 INFO L443 ceAbstractionStarter]: For program point L442-1(lines 30 575) no Hoare annotation was computed. [2019-10-22 11:27:08,710 INFO L443 ceAbstractionStarter]: For program point L409-1(lines 30 575) no Hoare annotation was computed. [2019-10-22 11:27:08,710 INFO L443 ceAbstractionStarter]: For program point L178(lines 178 390) no Hoare annotation was computed. [2019-10-22 11:27:08,710 INFO L443 ceAbstractionStarter]: For program point L542(line 542) no Hoare annotation was computed. [2019-10-22 11:27:08,710 INFO L443 ceAbstractionStarter]: For program point L509(line 509) no Hoare annotation was computed. [2019-10-22 11:27:08,710 INFO L443 ceAbstractionStarter]: For program point L476(line 476) no Hoare annotation was computed. [2019-10-22 11:27:08,710 INFO L443 ceAbstractionStarter]: For program point L443(line 443) no Hoare annotation was computed. [2019-10-22 11:27:08,710 INFO L443 ceAbstractionStarter]: For program point L410(line 410) no Hoare annotation was computed. [2019-10-22 11:27:08,710 INFO L443 ceAbstractionStarter]: For program point L377(lines 377 390) no Hoare annotation was computed. [2019-10-22 11:27:08,710 INFO L443 ceAbstractionStarter]: For program point L278(lines 278 390) no Hoare annotation was computed. [2019-10-22 11:27:08,710 INFO L443 ceAbstractionStarter]: For program point L245(lines 245 390) no Hoare annotation was computed. [2019-10-22 11:27:08,710 INFO L443 ceAbstractionStarter]: For program point L80(lines 80 390) no Hoare annotation was computed. [2019-10-22 11:27:08,711 INFO L443 ceAbstractionStarter]: For program point L345(lines 345 390) no Hoare annotation was computed. [2019-10-22 11:27:08,711 INFO L443 ceAbstractionStarter]: For program point L312(lines 312 390) no Hoare annotation was computed. [2019-10-22 11:27:08,711 INFO L443 ceAbstractionStarter]: For program point L114(lines 114 390) no Hoare annotation was computed. [2019-10-22 11:27:08,711 INFO L446 ceAbstractionStarter]: At program point L577(lines 577 594) the Hoare annotation is: true [2019-10-22 11:27:08,711 INFO L443 ceAbstractionStarter]: For program point L544-1(lines 30 575) no Hoare annotation was computed. [2019-10-22 11:27:08,711 INFO L443 ceAbstractionStarter]: For program point L511-1(lines 30 575) no Hoare annotation was computed. [2019-10-22 11:27:08,711 INFO L443 ceAbstractionStarter]: For program point L478-1(lines 30 575) no Hoare annotation was computed. [2019-10-22 11:27:08,711 INFO L443 ceAbstractionStarter]: For program point L445-1(lines 30 575) no Hoare annotation was computed. [2019-10-22 11:27:08,711 INFO L443 ceAbstractionStarter]: For program point L412-1(lines 30 575) no Hoare annotation was computed. [2019-10-22 11:27:08,711 INFO L443 ceAbstractionStarter]: For program point L214(lines 214 390) no Hoare annotation was computed. [2019-10-22 11:27:08,711 INFO L443 ceAbstractionStarter]: For program point L148(lines 148 390) no Hoare annotation was computed. [2019-10-22 11:27:08,712 INFO L443 ceAbstractionStarter]: For program point L49(lines 49 390) no Hoare annotation was computed. [2019-10-22 11:27:08,712 INFO L443 ceAbstractionStarter]: For program point L545(line 545) no Hoare annotation was computed. [2019-10-22 11:27:08,712 INFO L443 ceAbstractionStarter]: For program point L512(line 512) no Hoare annotation was computed. [2019-10-22 11:27:08,712 INFO L443 ceAbstractionStarter]: For program point L479(line 479) no Hoare annotation was computed. [2019-10-22 11:27:08,712 INFO L443 ceAbstractionStarter]: For program point L446(line 446) no Hoare annotation was computed. [2019-10-22 11:27:08,712 INFO L443 ceAbstractionStarter]: For program point L413(line 413) no Hoare annotation was computed. [2019-10-22 11:27:08,712 INFO L443 ceAbstractionStarter]: For program point L84(lines 84 390) no Hoare annotation was computed. [2019-10-22 11:27:08,712 INFO L443 ceAbstractionStarter]: For program point L547-1(lines 30 575) no Hoare annotation was computed. [2019-10-22 11:27:08,712 INFO L443 ceAbstractionStarter]: For program point L514-1(lines 30 575) no Hoare annotation was computed. [2019-10-22 11:27:08,713 INFO L443 ceAbstractionStarter]: For program point L481-1(lines 30 575) no Hoare annotation was computed. [2019-10-22 11:27:08,713 INFO L443 ceAbstractionStarter]: For program point L448-1(lines 30 575) no Hoare annotation was computed. [2019-10-22 11:27:08,713 INFO L443 ceAbstractionStarter]: For program point L382(lines 382 390) no Hoare annotation was computed. [2019-10-22 11:27:08,713 INFO L443 ceAbstractionStarter]: For program point L415-1(lines 30 575) no Hoare annotation was computed. [2019-10-22 11:27:08,713 INFO L443 ceAbstractionStarter]: For program point L316(lines 316 390) no Hoare annotation was computed. [2019-10-22 11:27:08,714 INFO L443 ceAbstractionStarter]: For program point L250(lines 250 390) no Hoare annotation was computed. [2019-10-22 11:27:08,714 INFO L443 ceAbstractionStarter]: For program point L548(line 548) no Hoare annotation was computed. [2019-10-22 11:27:08,714 INFO L443 ceAbstractionStarter]: For program point L515(line 515) no Hoare annotation was computed. [2019-10-22 11:27:08,714 INFO L443 ceAbstractionStarter]: For program point L482(line 482) no Hoare annotation was computed. [2019-10-22 11:27:08,714 INFO L443 ceAbstractionStarter]: For program point L449(line 449) no Hoare annotation was computed. [2019-10-22 11:27:08,714 INFO L443 ceAbstractionStarter]: For program point L416(line 416) no Hoare annotation was computed. [2019-10-22 11:27:08,714 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-10-22 11:27:08,714 INFO L443 ceAbstractionStarter]: For program point L218(lines 218 390) no Hoare annotation was computed. [2019-10-22 11:27:08,715 INFO L443 ceAbstractionStarter]: For program point L152(lines 152 390) no Hoare annotation was computed. [2019-10-22 11:27:08,715 INFO L443 ceAbstractionStarter]: For program point L119(lines 119 390) no Hoare annotation was computed. [2019-10-22 11:27:08,715 INFO L443 ceAbstractionStarter]: For program point L318(lines 318 390) no Hoare annotation was computed. [2019-10-22 11:27:08,715 INFO L443 ceAbstractionStarter]: For program point L186(lines 186 390) no Hoare annotation was computed. [2019-10-22 11:27:08,716 INFO L443 ceAbstractionStarter]: For program point L54(lines 54 390) no Hoare annotation was computed. [2019-10-22 11:27:08,716 INFO L443 ceAbstractionStarter]: For program point L550-1(lines 30 575) no Hoare annotation was computed. [2019-10-22 11:27:08,716 INFO L439 ceAbstractionStarter]: At program point L583-2(lines 583 593) the Hoare annotation is: (let ((.cse4 (= ~a16~0 6)) (.cse0 (not (= ~a8~0 13))) (.cse1 (= ~a17~0 1)) (.cse2 (= ~a21~0 1)) (.cse3 (= ~a20~0 1))) (or (and .cse0 (= 5 ~a16~0)) (= 1 ~a7~0) (and .cse1 .cse2 .cse3 .cse4) (and .cse0 .cse4) (and (and .cse0 .cse1 .cse2) .cse3) (= ~a16~0 4))) [2019-10-22 11:27:08,716 INFO L443 ceAbstractionStarter]: For program point L517-1(lines 30 575) no Hoare annotation was computed. [2019-10-22 11:27:08,716 INFO L443 ceAbstractionStarter]: For program point L484-1(lines 30 575) no Hoare annotation was computed. [2019-10-22 11:27:08,716 INFO L443 ceAbstractionStarter]: For program point L451-1(lines 30 575) no Hoare annotation was computed. [2019-10-22 11:27:08,716 INFO L443 ceAbstractionStarter]: For program point L418-1(lines 30 575) no Hoare annotation was computed. [2019-10-22 11:27:08,716 INFO L443 ceAbstractionStarter]: For program point L286(lines 286 390) no Hoare annotation was computed. [2019-10-22 11:27:08,716 INFO L443 ceAbstractionStarter]: For program point L551(line 551) no Hoare annotation was computed. [2019-10-22 11:27:08,716 INFO L443 ceAbstractionStarter]: For program point L518(line 518) no Hoare annotation was computed. [2019-10-22 11:27:08,717 INFO L443 ceAbstractionStarter]: For program point L485(line 485) no Hoare annotation was computed. [2019-10-22 11:27:08,717 INFO L443 ceAbstractionStarter]: For program point L452(line 452) no Hoare annotation was computed. [2019-10-22 11:27:08,717 INFO L443 ceAbstractionStarter]: For program point L419(line 419) no Hoare annotation was computed. [2019-10-22 11:27:08,717 INFO L443 ceAbstractionStarter]: For program point L353(lines 353 390) no Hoare annotation was computed. [2019-10-22 11:27:08,717 INFO L443 ceAbstractionStarter]: For program point L189(lines 189 390) no Hoare annotation was computed. [2019-10-22 11:27:08,717 INFO L443 ceAbstractionStarter]: For program point L553-1(lines 30 575) no Hoare annotation was computed. [2019-10-22 11:27:08,717 INFO L443 ceAbstractionStarter]: For program point L520-1(lines 30 575) no Hoare annotation was computed. [2019-10-22 11:27:08,717 INFO L443 ceAbstractionStarter]: For program point L487-1(lines 30 575) no Hoare annotation was computed. [2019-10-22 11:27:08,717 INFO L443 ceAbstractionStarter]: For program point L454-1(lines 30 575) no Hoare annotation was computed. [2019-10-22 11:27:08,717 INFO L443 ceAbstractionStarter]: For program point L421-1(lines 30 575) no Hoare annotation was computed. [2019-10-22 11:27:08,717 INFO L443 ceAbstractionStarter]: For program point L355(lines 355 390) no Hoare annotation was computed. [2019-10-22 11:27:08,718 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-22 11:27:08,718 INFO L443 ceAbstractionStarter]: For program point L256(lines 256 390) no Hoare annotation was computed. [2019-10-22 11:27:08,718 INFO L443 ceAbstractionStarter]: For program point L223(lines 223 390) no Hoare annotation was computed. [2019-10-22 11:27:08,718 INFO L443 ceAbstractionStarter]: For program point L124(lines 124 390) no Hoare annotation was computed. [2019-10-22 11:27:08,718 INFO L443 ceAbstractionStarter]: For program point L554(line 554) no Hoare annotation was computed. [2019-10-22 11:27:08,718 INFO L443 ceAbstractionStarter]: For program point L521(line 521) no Hoare annotation was computed. [2019-10-22 11:27:08,718 INFO L443 ceAbstractionStarter]: For program point L488(line 488) no Hoare annotation was computed. [2019-10-22 11:27:08,718 INFO L443 ceAbstractionStarter]: For program point L455(line 455) no Hoare annotation was computed. [2019-10-22 11:27:08,718 INFO L443 ceAbstractionStarter]: For program point L422(line 422) no Hoare annotation was computed. [2019-10-22 11:27:08,718 INFO L443 ceAbstractionStarter]: For program point L92(lines 92 390) no Hoare annotation was computed. [2019-10-22 11:27:08,718 INFO L443 ceAbstractionStarter]: For program point L588(line 588) no Hoare annotation was computed. [2019-10-22 11:27:08,718 INFO L443 ceAbstractionStarter]: For program point L324(lines 324 390) no Hoare annotation was computed. [2019-10-22 11:27:08,719 INFO L443 ceAbstractionStarter]: For program point L556-1(lines 30 575) no Hoare annotation was computed. [2019-10-22 11:27:08,719 INFO L443 ceAbstractionStarter]: For program point L523-1(lines 30 575) no Hoare annotation was computed. [2019-10-22 11:27:08,719 INFO L443 ceAbstractionStarter]: For program point L490-1(lines 30 575) no Hoare annotation was computed. [2019-10-22 11:27:08,719 INFO L443 ceAbstractionStarter]: For program point L457-1(lines 30 575) no Hoare annotation was computed. [2019-10-22 11:27:08,719 INFO L443 ceAbstractionStarter]: For program point L391(lines 391 393) no Hoare annotation was computed. [2019-10-22 11:27:08,719 INFO L443 ceAbstractionStarter]: For program point L424-1(lines 30 575) no Hoare annotation was computed. [2019-10-22 11:27:08,719 INFO L443 ceAbstractionStarter]: For program point L391-2(lines 30 575) no Hoare annotation was computed. [2019-10-22 11:27:08,719 INFO L443 ceAbstractionStarter]: For program point L292(lines 292 390) no Hoare annotation was computed. [2019-10-22 11:27:08,719 INFO L443 ceAbstractionStarter]: For program point L160(lines 160 390) no Hoare annotation was computed. [2019-10-22 11:27:08,719 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-22 11:27:08,719 INFO L443 ceAbstractionStarter]: For program point L557(line 557) no Hoare annotation was computed. [2019-10-22 11:27:08,720 INFO L443 ceAbstractionStarter]: For program point L524(line 524) no Hoare annotation was computed. [2019-10-22 11:27:08,720 INFO L443 ceAbstractionStarter]: For program point L491(line 491) no Hoare annotation was computed. [2019-10-22 11:27:08,720 INFO L443 ceAbstractionStarter]: For program point L458(line 458) no Hoare annotation was computed. [2019-10-22 11:27:08,720 INFO L443 ceAbstractionStarter]: For program point L425(line 425) no Hoare annotation was computed. [2019-10-22 11:27:08,720 INFO L443 ceAbstractionStarter]: For program point L392(line 392) no Hoare annotation was computed. [2019-10-22 11:27:08,720 INFO L443 ceAbstractionStarter]: For program point L194(lines 194 390) no Hoare annotation was computed. [2019-10-22 11:27:08,720 INFO L443 ceAbstractionStarter]: For program point L62(lines 62 390) no Hoare annotation was computed. [2019-10-22 11:27:08,720 INFO L443 ceAbstractionStarter]: For program point L261(lines 261 390) no Hoare annotation was computed. [2019-10-22 11:27:08,720 INFO L443 ceAbstractionStarter]: For program point L129(lines 129 390) no Hoare annotation was computed. [2019-10-22 11:27:08,720 INFO L443 ceAbstractionStarter]: For program point L559-1(lines 30 575) no Hoare annotation was computed. [2019-10-22 11:27:08,720 INFO L443 ceAbstractionStarter]: For program point L526-1(lines 30 575) no Hoare annotation was computed. [2019-10-22 11:27:08,720 INFO L443 ceAbstractionStarter]: For program point L493-1(lines 30 575) no Hoare annotation was computed. [2019-10-22 11:27:08,721 INFO L443 ceAbstractionStarter]: For program point L460-1(lines 30 575) no Hoare annotation was computed. [2019-10-22 11:27:08,721 INFO L443 ceAbstractionStarter]: For program point L427-1(lines 30 575) no Hoare annotation was computed. [2019-10-22 11:27:08,721 INFO L443 ceAbstractionStarter]: For program point L361(lines 361 390) no Hoare annotation was computed. [2019-10-22 11:27:08,721 INFO L443 ceAbstractionStarter]: For program point L394-1(lines 30 575) no Hoare annotation was computed. [2019-10-22 11:27:08,721 INFO L443 ceAbstractionStarter]: For program point L97(lines 97 390) no Hoare annotation was computed. [2019-10-22 11:27:08,721 INFO L443 ceAbstractionStarter]: For program point L31(lines 31 390) no Hoare annotation was computed. [2019-10-22 11:27:08,721 INFO L443 ceAbstractionStarter]: For program point L560(line 560) no Hoare annotation was computed. [2019-10-22 11:27:08,721 INFO L443 ceAbstractionStarter]: For program point L527(line 527) no Hoare annotation was computed. [2019-10-22 11:27:08,721 INFO L443 ceAbstractionStarter]: For program point L494(line 494) no Hoare annotation was computed. [2019-10-22 11:27:08,721 INFO L443 ceAbstractionStarter]: For program point L461(line 461) no Hoare annotation was computed. [2019-10-22 11:27:08,721 INFO L443 ceAbstractionStarter]: For program point L428(line 428) no Hoare annotation was computed. [2019-10-22 11:27:08,721 INFO L443 ceAbstractionStarter]: For program point L395(line 395) no Hoare annotation was computed. [2019-10-22 11:27:08,722 INFO L443 ceAbstractionStarter]: For program point L329(lines 329 390) no Hoare annotation was computed. [2019-10-22 11:27:08,722 INFO L443 ceAbstractionStarter]: For program point L197(lines 197 390) no Hoare annotation was computed. [2019-10-22 11:27:08,722 INFO L443 ceAbstractionStarter]: For program point L65(lines 65 390) no Hoare annotation was computed. [2019-10-22 11:27:08,722 INFO L443 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2019-10-22 11:27:08,722 INFO L443 ceAbstractionStarter]: For program point L363(lines 363 390) no Hoare annotation was computed. [2019-10-22 11:27:08,722 INFO L443 ceAbstractionStarter]: For program point L231(lines 231 390) no Hoare annotation was computed. [2019-10-22 11:27:08,722 INFO L443 ceAbstractionStarter]: For program point L165(lines 165 390) no Hoare annotation was computed. [2019-10-22 11:27:08,723 INFO L443 ceAbstractionStarter]: For program point L562-1(lines 30 575) no Hoare annotation was computed. [2019-10-22 11:27:08,723 INFO L443 ceAbstractionStarter]: For program point L529-1(lines 30 575) no Hoare annotation was computed. [2019-10-22 11:27:08,724 INFO L443 ceAbstractionStarter]: For program point L496-1(lines 30 575) no Hoare annotation was computed. [2019-10-22 11:27:08,724 INFO L443 ceAbstractionStarter]: For program point L463-1(lines 30 575) no Hoare annotation was computed. [2019-10-22 11:27:08,724 INFO L443 ceAbstractionStarter]: For program point L430-1(lines 30 575) no Hoare annotation was computed. [2019-10-22 11:27:08,724 INFO L443 ceAbstractionStarter]: For program point L397-1(lines 30 575) no Hoare annotation was computed. [2019-10-22 11:27:08,724 INFO L443 ceAbstractionStarter]: For program point L265(lines 265 390) no Hoare annotation was computed. [2019-10-22 11:27:08,724 INFO L443 ceAbstractionStarter]: For program point L563(line 563) no Hoare annotation was computed. [2019-10-22 11:27:08,724 INFO L443 ceAbstractionStarter]: For program point L530(line 530) no Hoare annotation was computed. [2019-10-22 11:27:08,724 INFO L443 ceAbstractionStarter]: For program point L497(line 497) no Hoare annotation was computed. [2019-10-22 11:27:08,724 INFO L443 ceAbstractionStarter]: For program point L464(line 464) no Hoare annotation was computed. [2019-10-22 11:27:08,724 INFO L443 ceAbstractionStarter]: For program point L431(line 431) no Hoare annotation was computed. [2019-10-22 11:27:08,724 INFO L443 ceAbstractionStarter]: For program point L398(line 398) no Hoare annotation was computed. [2019-10-22 11:27:08,725 INFO L443 ceAbstractionStarter]: For program point L365(lines 365 390) no Hoare annotation was computed. [2019-10-22 11:27:08,725 INFO L443 ceAbstractionStarter]: For program point L299(lines 299 390) no Hoare annotation was computed. [2019-10-22 11:27:08,725 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 482) no Hoare annotation was computed. [2019-10-22 11:27:08,725 INFO L443 ceAbstractionStarter]: For program point L35(lines 35 390) no Hoare annotation was computed. [2019-10-22 11:27:08,740 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 11:27:08 BoogieIcfgContainer [2019-10-22 11:27:08,740 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-22 11:27:08,740 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 11:27:08,740 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 11:27:08,740 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 11:27:08,741 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:27:00" (3/4) ... [2019-10-22 11:27:08,746 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-10-22 11:27:08,761 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2019-10-22 11:27:08,762 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-10-22 11:27:08,862 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_c8c9f850-7a3b-4643-b63e-624ad5a0f795/bin/utaipan/witness.graphml [2019-10-22 11:27:08,862 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 11:27:08,863 INFO L168 Benchmark]: Toolchain (without parser) took 10078.38 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 268.4 MB). Free memory was 940.4 MB in the beginning and 923.8 MB in the end (delta: 16.6 MB). Peak memory consumption was 285.0 MB. Max. memory is 11.5 GB. [2019-10-22 11:27:08,864 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 960.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:27:08,864 INFO L168 Benchmark]: CACSL2BoogieTranslator took 566.02 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.6 MB). Free memory was 940.4 MB in the beginning and 1.1 GB in the end (delta: -163.7 MB). Peak memory consumption was 23.7 MB. Max. memory is 11.5 GB. [2019-10-22 11:27:08,864 INFO L168 Benchmark]: Boogie Procedure Inliner took 68.58 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-10-22 11:27:08,865 INFO L168 Benchmark]: Boogie Preprocessor took 53.95 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 11.5 GB. [2019-10-22 11:27:08,865 INFO L168 Benchmark]: RCFGBuilder took 1202.73 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 986.4 MB in the end (delta: 108.4 MB). Peak memory consumption was 108.4 MB. Max. memory is 11.5 GB. [2019-10-22 11:27:08,865 INFO L168 Benchmark]: TraceAbstraction took 8060.55 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 135.8 MB). Free memory was 986.4 MB in the beginning and 942.3 MB in the end (delta: 44.1 MB). Peak memory consumption was 179.9 MB. Max. memory is 11.5 GB. [2019-10-22 11:27:08,865 INFO L168 Benchmark]: Witness Printer took 122.07 ms. Allocated memory is still 1.3 GB. Free memory was 942.3 MB in the beginning and 923.8 MB in the end (delta: 18.5 MB). Peak memory consumption was 18.5 MB. Max. memory is 11.5 GB. [2019-10-22 11:27:08,867 INFO L335 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 960.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 566.02 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.6 MB). Free memory was 940.4 MB in the beginning and 1.1 GB in the end (delta: -163.7 MB). Peak memory consumption was 23.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 68.58 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 53.95 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1202.73 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 986.4 MB in the end (delta: 108.4 MB). Peak memory consumption was 108.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 8060.55 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 135.8 MB). Free memory was 986.4 MB in the beginning and 942.3 MB in the end (delta: 44.1 MB). Peak memory consumption was 179.9 MB. Max. memory is 11.5 GB. * Witness Printer took 122.07 ms. Allocated memory is still 1.3 GB. Free memory was 942.3 MB in the beginning and 923.8 MB in the end (delta: 18.5 MB). Peak memory consumption was 18.5 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 482]: 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: 30]: Loop Invariant Derived loop invariant: (((((!(a8 == 13) && 5 == a16) || 1 == a7) || (((a17 == 1 && a21 == 1) && a20 == 1) && a16 == 6)) || (!(a8 == 13) && a16 == 6)) || (((!(a8 == 13) && a17 == 1) && a21 == 1) && a20 == 1)) || a16 == 4 - InvariantResult [Line: 577]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 583]: Loop Invariant Derived loop invariant: (((((!(a8 == 13) && 5 == a16) || 1 == a7) || (((a17 == 1 && a21 == 1) && a20 == 1) && a16 == 6)) || (!(a8 == 13) && a16 == 6)) || (((!(a8 == 13) && a17 == 1) && a21 == 1) && a20 == 1)) || a16 == 4 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 198 locations, 1 error locations. Result: SAFE, OverallTime: 7.9s, OverallIterations: 9, TraceHistogramMax: 6, AutomataDifference: 5.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.6s, HoareTripleCheckerStatistics: 639 SDtfs, 2551 SDslu, 111 SDs, 0 SdLazy, 5415 SolverSat, 841 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 43 GetRequests, 14 SyntacticMatches, 4 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1969occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 9 MinimizatonAttempts, 1634 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 61 NumberOfFragments, 103 HoareAnnotationTreeSize, 3 FomulaSimplifications, 7365 FormulaSimplificationTreeSizeReduction, 0.2s HoareSimplificationTime, 3 FomulaSimplificationsInter, 2204 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 1283 NumberOfCodeBlocks, 1283 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 1274 ConstructedInterpolants, 0 QuantifiedInterpolants, 501461 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 627/627 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...