./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/openssl-simplified/s3_clnt_1.cil-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 7b2dab56 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_a1f4368c-f12a-4b56-99b2-a3f8d391ea52/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_a1f4368c-f12a-4b56-99b2-a3f8d391ea52/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_a1f4368c-f12a-4b56-99b2-a3f8d391ea52/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_a1f4368c-f12a-4b56-99b2-a3f8d391ea52/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/openssl-simplified/s3_clnt_1.cil-1.c -s /tmp/vcloud-vcloud-master/worker/run_dir_a1f4368c-f12a-4b56-99b2-a3f8d391ea52/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_a1f4368c-f12a-4b56-99b2-a3f8d391ea52/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 0237d7665f4c4183d0858d7577c1caaad788a36b ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-7b2dab5 [2020-12-09 09:16:17,365 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-09 09:16:17,366 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-09 09:16:17,404 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-09 09:16:17,405 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-09 09:16:17,406 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-09 09:16:17,408 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-09 09:16:17,410 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-09 09:16:17,412 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-09 09:16:17,413 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-09 09:16:17,413 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-09 09:16:17,415 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-09 09:16:17,415 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-09 09:16:17,416 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-09 09:16:17,417 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-09 09:16:17,418 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-09 09:16:17,419 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-09 09:16:17,419 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-09 09:16:17,421 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-09 09:16:17,423 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-09 09:16:17,424 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-09 09:16:17,425 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-09 09:16:17,426 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-09 09:16:17,427 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-09 09:16:17,430 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-09 09:16:17,430 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-09 09:16:17,430 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-09 09:16:17,431 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-09 09:16:17,431 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-09 09:16:17,432 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-09 09:16:17,432 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-09 09:16:17,433 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-09 09:16:17,433 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-09 09:16:17,434 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-09 09:16:17,435 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-09 09:16:17,435 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-09 09:16:17,436 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-09 09:16:17,436 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-09 09:16:17,436 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-09 09:16:17,436 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-09 09:16:17,437 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-09 09:16:17,438 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_a1f4368c-f12a-4b56-99b2-a3f8d391ea52/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-12-09 09:16:17,454 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-09 09:16:17,454 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-09 09:16:17,455 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-09 09:16:17,455 INFO L138 SettingsManager]: * User list type=DISABLED [2020-12-09 09:16:17,455 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-12-09 09:16:17,455 INFO L138 SettingsManager]: * Explicit value domain=true [2020-12-09 09:16:17,455 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-12-09 09:16:17,455 INFO L138 SettingsManager]: * Octagon Domain=false [2020-12-09 09:16:17,455 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-12-09 09:16:17,455 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-12-09 09:16:17,456 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-12-09 09:16:17,456 INFO L138 SettingsManager]: * Interval Domain=false [2020-12-09 09:16:17,456 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-12-09 09:16:17,456 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-12-09 09:16:17,456 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-12-09 09:16:17,456 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-09 09:16:17,457 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-09 09:16:17,457 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-09 09:16:17,457 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-09 09:16:17,457 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-09 09:16:17,457 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-09 09:16:17,457 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-09 09:16:17,457 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-09 09:16:17,457 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-12-09 09:16:17,457 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-09 09:16:17,458 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-09 09:16:17,458 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-09 09:16:17,458 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-09 09:16:17,458 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-09 09:16:17,458 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-09 09:16:17,458 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 09:16:17,458 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-09 09:16:17,458 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-09 09:16:17,458 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-09 09:16:17,459 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-12-09 09:16:17,459 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-09 09:16:17,459 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-09 09:16:17,459 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-09 09:16:17,459 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-09 09:16:17,459 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_a1f4368c-f12a-4b56-99b2-a3f8d391ea52/bin/utaipan/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_a1f4368c-f12a-4b56-99b2-a3f8d391ea52/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0237d7665f4c4183d0858d7577c1caaad788a36b [2020-12-09 09:16:17,647 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-09 09:16:17,667 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-09 09:16:17,670 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-09 09:16:17,671 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-09 09:16:17,671 INFO L275 PluginConnector]: CDTParser initialized [2020-12-09 09:16:17,672 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_a1f4368c-f12a-4b56-99b2-a3f8d391ea52/bin/utaipan/../../sv-benchmarks/c/openssl-simplified/s3_clnt_1.cil-1.c [2020-12-09 09:16:17,711 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_a1f4368c-f12a-4b56-99b2-a3f8d391ea52/bin/utaipan/data/895e54ad2/6eb958b580f449da9525eb4ef849c5ac/FLAGdfdc898a1 [2020-12-09 09:16:18,096 INFO L306 CDTParser]: Found 1 translation units. [2020-12-09 09:16:18,096 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_a1f4368c-f12a-4b56-99b2-a3f8d391ea52/sv-benchmarks/c/openssl-simplified/s3_clnt_1.cil-1.c [2020-12-09 09:16:18,106 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_a1f4368c-f12a-4b56-99b2-a3f8d391ea52/bin/utaipan/data/895e54ad2/6eb958b580f449da9525eb4ef849c5ac/FLAGdfdc898a1 [2020-12-09 09:16:18,115 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_a1f4368c-f12a-4b56-99b2-a3f8d391ea52/bin/utaipan/data/895e54ad2/6eb958b580f449da9525eb4ef849c5ac [2020-12-09 09:16:18,117 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-09 09:16:18,118 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-09 09:16:18,119 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-09 09:16:18,119 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-09 09:16:18,121 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-09 09:16:18,122 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 09:16:18" (1/1) ... [2020-12-09 09:16:18,123 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@387b1c40 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 09:16:18, skipping insertion in model container [2020-12-09 09:16:18,124 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 09:16:18" (1/1) ... [2020-12-09 09:16:18,129 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-09 09:16:18,157 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-09 09:16:18,292 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_a1f4368c-f12a-4b56-99b2-a3f8d391ea52/sv-benchmarks/c/openssl-simplified/s3_clnt_1.cil-1.c[34967,34980] [2020-12-09 09:16:18,299 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 09:16:18,308 INFO L203 MainTranslator]: Completed pre-run [2020-12-09 09:16:18,349 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_a1f4368c-f12a-4b56-99b2-a3f8d391ea52/sv-benchmarks/c/openssl-simplified/s3_clnt_1.cil-1.c[34967,34980] [2020-12-09 09:16:18,351 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 09:16:18,362 INFO L208 MainTranslator]: Completed translation [2020-12-09 09:16:18,363 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 09:16:18 WrapperNode [2020-12-09 09:16:18,363 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-09 09:16:18,364 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-09 09:16:18,364 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-09 09:16:18,364 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-09 09:16:18,370 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 09:16:18" (1/1) ... [2020-12-09 09:16:18,378 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 09:16:18" (1/1) ... [2020-12-09 09:16:18,406 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-09 09:16:18,406 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-09 09:16:18,406 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-09 09:16:18,406 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-09 09:16:18,413 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 09:16:18" (1/1) ... [2020-12-09 09:16:18,413 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 09:16:18" (1/1) ... [2020-12-09 09:16:18,416 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 09:16:18" (1/1) ... [2020-12-09 09:16:18,416 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 09:16:18" (1/1) ... [2020-12-09 09:16:18,422 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 09:16:18" (1/1) ... [2020-12-09 09:16:18,428 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 09:16:18" (1/1) ... [2020-12-09 09:16:18,430 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 09:16:18" (1/1) ... [2020-12-09 09:16:18,434 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-09 09:16:18,435 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-09 09:16:18,435 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-09 09:16:18,435 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-09 09:16:18,436 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 09:16:18" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a1f4368c-f12a-4b56-99b2-a3f8d391ea52/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 [2020-12-09 09:16:18,502 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-09 09:16:18,502 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-09 09:16:18,502 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-09 09:16:18,502 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-09 09:16:18,597 WARN L800 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-12-09 09:16:18,915 INFO L752 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##85: assume !false; [2020-12-09 09:16:18,915 INFO L752 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##84: assume false; [2020-12-09 09:16:19,191 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-09 09:16:19,191 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2020-12-09 09:16:19,193 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 09:16:19 BoogieIcfgContainer [2020-12-09 09:16:19,193 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-09 09:16:19,194 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-09 09:16:19,194 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-09 09:16:19,197 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-09 09:16:19,197 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 09:16:18" (1/3) ... [2020-12-09 09:16:19,197 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d1719c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 09:16:19, skipping insertion in model container [2020-12-09 09:16:19,197 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 09:16:18" (2/3) ... [2020-12-09 09:16:19,198 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d1719c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 09:16:19, skipping insertion in model container [2020-12-09 09:16:19,198 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 09:16:19" (3/3) ... [2020-12-09 09:16:19,199 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_clnt_1.cil-1.c [2020-12-09 09:16:19,208 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-09 09:16:19,212 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-09 09:16:19,226 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-09 09:16:19,249 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-09 09:16:19,249 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-09 09:16:19,249 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-09 09:16:19,250 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-09 09:16:19,250 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-09 09:16:19,250 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-09 09:16:19,250 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-09 09:16:19,250 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-09 09:16:19,264 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states. [2020-12-09 09:16:19,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-12-09 09:16:19,268 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 09:16:19,269 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 09:16:19,269 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 09:16:19,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 09:16:19,273 INFO L82 PathProgramCache]: Analyzing trace with hash -642240666, now seen corresponding path program 1 times [2020-12-09 09:16:19,279 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 09:16:19,280 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [782815760] [2020-12-09 09:16:19,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 09:16:19,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 09:16:19,422 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 09:16:19,422 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [782815760] [2020-12-09 09:16:19,423 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 09:16:19,423 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-09 09:16:19,424 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [332331201] [2020-12-09 09:16:19,427 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 09:16:19,427 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 09:16:19,435 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 09:16:19,436 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 09:16:19,437 INFO L87 Difference]: Start difference. First operand 84 states. Second operand 3 states. [2020-12-09 09:16:19,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 09:16:19,572 INFO L93 Difference]: Finished difference Result 196 states and 338 transitions. [2020-12-09 09:16:19,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 09:16:19,573 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2020-12-09 09:16:19,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 09:16:19,581 INFO L225 Difference]: With dead ends: 196 [2020-12-09 09:16:19,581 INFO L226 Difference]: Without dead ends: 107 [2020-12-09 09:16:19,583 INFO L677 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 [2020-12-09 09:16:19,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2020-12-09 09:16:19,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 102. [2020-12-09 09:16:19,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 102 states. [2020-12-09 09:16:19,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 155 transitions. [2020-12-09 09:16:19,614 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 155 transitions. Word has length 19 [2020-12-09 09:16:19,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 09:16:19,614 INFO L481 AbstractCegarLoop]: Abstraction has 102 states and 155 transitions. [2020-12-09 09:16:19,614 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 09:16:19,615 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 155 transitions. [2020-12-09 09:16:19,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-12-09 09:16:19,615 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 09:16:19,615 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 09:16:19,616 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-09 09:16:19,616 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 09:16:19,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 09:16:19,616 INFO L82 PathProgramCache]: Analyzing trace with hash 1560868595, now seen corresponding path program 1 times [2020-12-09 09:16:19,617 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 09:16:19,617 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1471179763] [2020-12-09 09:16:19,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 09:16:19,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 09:16:19,664 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 09:16:19,664 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1471179763] [2020-12-09 09:16:19,664 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 09:16:19,664 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-09 09:16:19,664 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [683439756] [2020-12-09 09:16:19,665 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 09:16:19,665 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 09:16:19,666 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 09:16:19,666 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 09:16:19,666 INFO L87 Difference]: Start difference. First operand 102 states and 155 transitions. Second operand 3 states. [2020-12-09 09:16:19,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 09:16:19,777 INFO L93 Difference]: Finished difference Result 230 states and 354 transitions. [2020-12-09 09:16:19,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 09:16:19,777 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 20 [2020-12-09 09:16:19,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 09:16:19,779 INFO L225 Difference]: With dead ends: 230 [2020-12-09 09:16:19,779 INFO L226 Difference]: Without dead ends: 129 [2020-12-09 09:16:19,780 INFO L677 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 [2020-12-09 09:16:19,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2020-12-09 09:16:19,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 124. [2020-12-09 09:16:19,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 124 states. [2020-12-09 09:16:19,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 194 transitions. [2020-12-09 09:16:19,789 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 194 transitions. Word has length 20 [2020-12-09 09:16:19,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 09:16:19,789 INFO L481 AbstractCegarLoop]: Abstraction has 124 states and 194 transitions. [2020-12-09 09:16:19,789 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 09:16:19,789 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 194 transitions. [2020-12-09 09:16:19,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-12-09 09:16:19,790 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 09:16:19,790 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-12-09 09:16:19,790 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-09 09:16:19,790 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 09:16:19,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 09:16:19,791 INFO L82 PathProgramCache]: Analyzing trace with hash 1709113557, now seen corresponding path program 1 times [2020-12-09 09:16:19,791 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 09:16:19,791 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1071508139] [2020-12-09 09:16:19,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 09:16:19,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 09:16:19,832 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 09:16:19,832 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1071508139] [2020-12-09 09:16:19,833 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 09:16:19,833 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-09 09:16:19,833 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1811835188] [2020-12-09 09:16:19,833 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 09:16:19,833 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 09:16:19,834 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 09:16:19,834 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 09:16:19,834 INFO L87 Difference]: Start difference. First operand 124 states and 194 transitions. Second operand 3 states. [2020-12-09 09:16:19,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 09:16:19,923 INFO L93 Difference]: Finished difference Result 268 states and 423 transitions. [2020-12-09 09:16:19,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 09:16:19,923 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 37 [2020-12-09 09:16:19,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 09:16:19,925 INFO L225 Difference]: With dead ends: 268 [2020-12-09 09:16:19,925 INFO L226 Difference]: Without dead ends: 145 [2020-12-09 09:16:19,925 INFO L677 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 [2020-12-09 09:16:19,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2020-12-09 09:16:19,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 143. [2020-12-09 09:16:19,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 143 states. [2020-12-09 09:16:19,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 226 transitions. [2020-12-09 09:16:19,934 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 226 transitions. Word has length 37 [2020-12-09 09:16:19,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 09:16:19,934 INFO L481 AbstractCegarLoop]: Abstraction has 143 states and 226 transitions. [2020-12-09 09:16:19,934 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 09:16:19,934 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 226 transitions. [2020-12-09 09:16:19,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-12-09 09:16:19,935 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 09:16:19,935 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 09:16:19,935 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-09 09:16:19,936 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 09:16:19,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 09:16:19,936 INFO L82 PathProgramCache]: Analyzing trace with hash 1517239234, now seen corresponding path program 1 times [2020-12-09 09:16:19,936 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 09:16:19,936 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [558546446] [2020-12-09 09:16:19,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 09:16:19,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 09:16:19,974 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 09:16:19,974 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [558546446] [2020-12-09 09:16:19,974 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 09:16:19,974 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-09 09:16:19,974 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1479828654] [2020-12-09 09:16:19,975 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 09:16:19,975 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 09:16:19,975 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 09:16:19,975 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 09:16:19,975 INFO L87 Difference]: Start difference. First operand 143 states and 226 transitions. Second operand 3 states. [2020-12-09 09:16:20,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 09:16:20,064 INFO L93 Difference]: Finished difference Result 287 states and 453 transitions. [2020-12-09 09:16:20,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 09:16:20,065 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 38 [2020-12-09 09:16:20,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 09:16:20,066 INFO L225 Difference]: With dead ends: 287 [2020-12-09 09:16:20,066 INFO L226 Difference]: Without dead ends: 145 [2020-12-09 09:16:20,067 INFO L677 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 [2020-12-09 09:16:20,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2020-12-09 09:16:20,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 143. [2020-12-09 09:16:20,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 143 states. [2020-12-09 09:16:20,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 224 transitions. [2020-12-09 09:16:20,074 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 224 transitions. Word has length 38 [2020-12-09 09:16:20,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 09:16:20,075 INFO L481 AbstractCegarLoop]: Abstraction has 143 states and 224 transitions. [2020-12-09 09:16:20,075 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 09:16:20,075 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 224 transitions. [2020-12-09 09:16:20,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-12-09 09:16:20,076 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 09:16:20,077 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 09:16:20,077 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-09 09:16:20,077 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 09:16:20,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 09:16:20,077 INFO L82 PathProgramCache]: Analyzing trace with hash 621720273, now seen corresponding path program 1 times [2020-12-09 09:16:20,077 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 09:16:20,077 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [157826139] [2020-12-09 09:16:20,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 09:16:20,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 09:16:20,112 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-12-09 09:16:20,112 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [157826139] [2020-12-09 09:16:20,112 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 09:16:20,112 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-09 09:16:20,113 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2046857924] [2020-12-09 09:16:20,113 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 09:16:20,113 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 09:16:20,113 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 09:16:20,113 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 09:16:20,113 INFO L87 Difference]: Start difference. First operand 143 states and 224 transitions. Second operand 3 states. [2020-12-09 09:16:20,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 09:16:20,186 INFO L93 Difference]: Finished difference Result 305 states and 481 transitions. [2020-12-09 09:16:20,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 09:16:20,187 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 52 [2020-12-09 09:16:20,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 09:16:20,188 INFO L225 Difference]: With dead ends: 305 [2020-12-09 09:16:20,188 INFO L226 Difference]: Without dead ends: 163 [2020-12-09 09:16:20,188 INFO L677 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 [2020-12-09 09:16:20,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2020-12-09 09:16:20,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 160. [2020-12-09 09:16:20,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 160 states. [2020-12-09 09:16:20,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 251 transitions. [2020-12-09 09:16:20,199 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 251 transitions. Word has length 52 [2020-12-09 09:16:20,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 09:16:20,199 INFO L481 AbstractCegarLoop]: Abstraction has 160 states and 251 transitions. [2020-12-09 09:16:20,199 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 09:16:20,199 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 251 transitions. [2020-12-09 09:16:20,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-12-09 09:16:20,201 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 09:16:20,201 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 09:16:20,202 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-09 09:16:20,202 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 09:16:20,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 09:16:20,202 INFO L82 PathProgramCache]: Analyzing trace with hash -1103947868, now seen corresponding path program 1 times [2020-12-09 09:16:20,202 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 09:16:20,202 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1797103742] [2020-12-09 09:16:20,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 09:16:20,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 09:16:20,243 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-12-09 09:16:20,244 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1797103742] [2020-12-09 09:16:20,244 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 09:16:20,244 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-09 09:16:20,244 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [978680717] [2020-12-09 09:16:20,244 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 09:16:20,245 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 09:16:20,245 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 09:16:20,245 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 09:16:20,245 INFO L87 Difference]: Start difference. First operand 160 states and 251 transitions. Second operand 3 states. [2020-12-09 09:16:20,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 09:16:20,341 INFO L93 Difference]: Finished difference Result 322 states and 505 transitions. [2020-12-09 09:16:20,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 09:16:20,341 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 53 [2020-12-09 09:16:20,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 09:16:20,343 INFO L225 Difference]: With dead ends: 322 [2020-12-09 09:16:20,343 INFO L226 Difference]: Without dead ends: 163 [2020-12-09 09:16:20,343 INFO L677 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 [2020-12-09 09:16:20,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2020-12-09 09:16:20,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 160. [2020-12-09 09:16:20,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 160 states. [2020-12-09 09:16:20,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 248 transitions. [2020-12-09 09:16:20,351 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 248 transitions. Word has length 53 [2020-12-09 09:16:20,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 09:16:20,351 INFO L481 AbstractCegarLoop]: Abstraction has 160 states and 248 transitions. [2020-12-09 09:16:20,351 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 09:16:20,352 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 248 transitions. [2020-12-09 09:16:20,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2020-12-09 09:16:20,353 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 09:16:20,353 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 09:16:20,353 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-09 09:16:20,353 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 09:16:20,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 09:16:20,354 INFO L82 PathProgramCache]: Analyzing trace with hash 1985003595, now seen corresponding path program 1 times [2020-12-09 09:16:20,354 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 09:16:20,354 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2049539667] [2020-12-09 09:16:20,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 09:16:20,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 09:16:20,402 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 09:16:20,402 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2049539667] [2020-12-09 09:16:20,402 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 09:16:20,402 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-09 09:16:20,402 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [750453063] [2020-12-09 09:16:20,403 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 09:16:20,403 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 09:16:20,404 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 09:16:20,404 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 09:16:20,404 INFO L87 Difference]: Start difference. First operand 160 states and 248 transitions. Second operand 3 states. [2020-12-09 09:16:20,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 09:16:20,505 INFO L93 Difference]: Finished difference Result 358 states and 562 transitions. [2020-12-09 09:16:20,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 09:16:20,505 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 56 [2020-12-09 09:16:20,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 09:16:20,507 INFO L225 Difference]: With dead ends: 358 [2020-12-09 09:16:20,507 INFO L226 Difference]: Without dead ends: 198 [2020-12-09 09:16:20,507 INFO L677 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 [2020-12-09 09:16:20,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2020-12-09 09:16:20,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 198. [2020-12-09 09:16:20,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 198 states. [2020-12-09 09:16:20,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 313 transitions. [2020-12-09 09:16:20,516 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 313 transitions. Word has length 56 [2020-12-09 09:16:20,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 09:16:20,516 INFO L481 AbstractCegarLoop]: Abstraction has 198 states and 313 transitions. [2020-12-09 09:16:20,516 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 09:16:20,517 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 313 transitions. [2020-12-09 09:16:20,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-12-09 09:16:20,518 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 09:16:20,518 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 09:16:20,519 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-12-09 09:16:20,519 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 09:16:20,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 09:16:20,519 INFO L82 PathProgramCache]: Analyzing trace with hash -1379473108, now seen corresponding path program 1 times [2020-12-09 09:16:20,519 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 09:16:20,519 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [643372604] [2020-12-09 09:16:20,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 09:16:20,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 09:16:20,555 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2020-12-09 09:16:20,556 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [643372604] [2020-12-09 09:16:20,556 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 09:16:20,556 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-09 09:16:20,556 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1430376382] [2020-12-09 09:16:20,557 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 09:16:20,557 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 09:16:20,557 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 09:16:20,557 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 09:16:20,557 INFO L87 Difference]: Start difference. First operand 198 states and 313 transitions. Second operand 3 states. [2020-12-09 09:16:20,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 09:16:20,655 INFO L93 Difference]: Finished difference Result 412 states and 653 transitions. [2020-12-09 09:16:20,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 09:16:20,656 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 65 [2020-12-09 09:16:20,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 09:16:20,657 INFO L225 Difference]: With dead ends: 412 [2020-12-09 09:16:20,658 INFO L226 Difference]: Without dead ends: 215 [2020-12-09 09:16:20,658 INFO L677 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 [2020-12-09 09:16:20,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 215 states. [2020-12-09 09:16:20,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 215 to 213. [2020-12-09 09:16:20,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 213 states. [2020-12-09 09:16:20,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 213 states and 334 transitions. [2020-12-09 09:16:20,667 INFO L78 Accepts]: Start accepts. Automaton has 213 states and 334 transitions. Word has length 65 [2020-12-09 09:16:20,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 09:16:20,667 INFO L481 AbstractCegarLoop]: Abstraction has 213 states and 334 transitions. [2020-12-09 09:16:20,667 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 09:16:20,667 INFO L276 IsEmpty]: Start isEmpty. Operand 213 states and 334 transitions. [2020-12-09 09:16:20,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2020-12-09 09:16:20,668 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 09:16:20,668 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 09:16:20,669 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-12-09 09:16:20,669 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 09:16:20,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 09:16:20,669 INFO L82 PathProgramCache]: Analyzing trace with hash -1971122215, now seen corresponding path program 1 times [2020-12-09 09:16:20,669 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 09:16:20,669 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1672599061] [2020-12-09 09:16:20,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 09:16:20,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 09:16:20,704 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2020-12-09 09:16:20,704 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1672599061] [2020-12-09 09:16:20,705 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 09:16:20,705 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-09 09:16:20,705 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [262079383] [2020-12-09 09:16:20,705 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 09:16:20,705 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 09:16:20,706 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 09:16:20,706 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 09:16:20,706 INFO L87 Difference]: Start difference. First operand 213 states and 334 transitions. Second operand 3 states. [2020-12-09 09:16:20,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 09:16:20,799 INFO L93 Difference]: Finished difference Result 427 states and 669 transitions. [2020-12-09 09:16:20,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 09:16:20,799 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 66 [2020-12-09 09:16:20,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 09:16:20,800 INFO L225 Difference]: With dead ends: 427 [2020-12-09 09:16:20,800 INFO L226 Difference]: Without dead ends: 215 [2020-12-09 09:16:20,801 INFO L677 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 [2020-12-09 09:16:20,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 215 states. [2020-12-09 09:16:20,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 215 to 213. [2020-12-09 09:16:20,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 213 states. [2020-12-09 09:16:20,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 213 states and 329 transitions. [2020-12-09 09:16:20,807 INFO L78 Accepts]: Start accepts. Automaton has 213 states and 329 transitions. Word has length 66 [2020-12-09 09:16:20,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 09:16:20,807 INFO L481 AbstractCegarLoop]: Abstraction has 213 states and 329 transitions. [2020-12-09 09:16:20,807 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 09:16:20,807 INFO L276 IsEmpty]: Start isEmpty. Operand 213 states and 329 transitions. [2020-12-09 09:16:20,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2020-12-09 09:16:20,807 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 09:16:20,808 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 09:16:20,808 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-12-09 09:16:20,808 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 09:16:20,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 09:16:20,808 INFO L82 PathProgramCache]: Analyzing trace with hash 15467357, now seen corresponding path program 1 times [2020-12-09 09:16:20,808 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 09:16:20,808 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2033955006] [2020-12-09 09:16:20,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 09:16:20,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 09:16:20,831 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2020-12-09 09:16:20,831 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2033955006] [2020-12-09 09:16:20,831 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 09:16:20,831 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-09 09:16:20,832 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1505784329] [2020-12-09 09:16:20,832 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 09:16:20,832 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 09:16:20,832 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 09:16:20,832 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 09:16:20,832 INFO L87 Difference]: Start difference. First operand 213 states and 329 transitions. Second operand 3 states. [2020-12-09 09:16:20,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 09:16:20,907 INFO L93 Difference]: Finished difference Result 440 states and 681 transitions. [2020-12-09 09:16:20,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 09:16:20,907 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 76 [2020-12-09 09:16:20,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 09:16:20,909 INFO L225 Difference]: With dead ends: 440 [2020-12-09 09:16:20,909 INFO L226 Difference]: Without dead ends: 228 [2020-12-09 09:16:20,909 INFO L677 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 [2020-12-09 09:16:20,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states. [2020-12-09 09:16:20,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 226. [2020-12-09 09:16:20,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 226 states. [2020-12-09 09:16:20,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 345 transitions. [2020-12-09 09:16:20,919 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 345 transitions. Word has length 76 [2020-12-09 09:16:20,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 09:16:20,920 INFO L481 AbstractCegarLoop]: Abstraction has 226 states and 345 transitions. [2020-12-09 09:16:20,920 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 09:16:20,920 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 345 transitions. [2020-12-09 09:16:20,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2020-12-09 09:16:20,921 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 09:16:20,921 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 09:16:20,921 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-12-09 09:16:20,921 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 09:16:20,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 09:16:20,922 INFO L82 PathProgramCache]: Analyzing trace with hash 1331398128, now seen corresponding path program 1 times [2020-12-09 09:16:20,922 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 09:16:20,922 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2045067732] [2020-12-09 09:16:20,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 09:16:20,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 09:16:20,954 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2020-12-09 09:16:20,955 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2045067732] [2020-12-09 09:16:20,955 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 09:16:20,955 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-09 09:16:20,955 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [325176341] [2020-12-09 09:16:20,955 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 09:16:20,955 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 09:16:20,956 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 09:16:20,956 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 09:16:20,956 INFO L87 Difference]: Start difference. First operand 226 states and 345 transitions. Second operand 3 states. [2020-12-09 09:16:21,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 09:16:21,046 INFO L93 Difference]: Finished difference Result 453 states and 691 transitions. [2020-12-09 09:16:21,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 09:16:21,047 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 77 [2020-12-09 09:16:21,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 09:16:21,048 INFO L225 Difference]: With dead ends: 453 [2020-12-09 09:16:21,048 INFO L226 Difference]: Without dead ends: 228 [2020-12-09 09:16:21,049 INFO L677 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 [2020-12-09 09:16:21,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states. [2020-12-09 09:16:21,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 226. [2020-12-09 09:16:21,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 226 states. [2020-12-09 09:16:21,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 339 transitions. [2020-12-09 09:16:21,059 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 339 transitions. Word has length 77 [2020-12-09 09:16:21,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 09:16:21,059 INFO L481 AbstractCegarLoop]: Abstraction has 226 states and 339 transitions. [2020-12-09 09:16:21,059 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 09:16:21,059 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 339 transitions. [2020-12-09 09:16:21,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2020-12-09 09:16:21,060 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 09:16:21,060 INFO L422 BasicCegarLoop]: trace histogram [6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 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] [2020-12-09 09:16:21,060 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-12-09 09:16:21,061 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 09:16:21,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 09:16:21,061 INFO L82 PathProgramCache]: Analyzing trace with hash 1242830316, now seen corresponding path program 1 times [2020-12-09 09:16:21,061 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 09:16:21,061 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [887515620] [2020-12-09 09:16:21,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 09:16:21,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 09:16:21,120 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-12-09 09:16:21,120 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [887515620] [2020-12-09 09:16:21,120 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [886273406] [2020-12-09 09:16:21,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a1f4368c-f12a-4b56-99b2-a3f8d391ea52/bin/utaipan/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-09 09:16:21,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 09:16:21,185 INFO L263 TraceCheckSpWp]: Trace formula consists of 259 conjuncts, 6 conjunts are in the unsatisfiable core [2020-12-09 09:16:21,191 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 09:16:21,273 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 77 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2020-12-09 09:16:21,273 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 09:16:21,391 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2020-12-09 09:16:21,391 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2020-12-09 09:16:21,392 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5, 4] total 5 [2020-12-09 09:16:21,392 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [540851969] [2020-12-09 09:16:21,392 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 09:16:21,392 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 09:16:21,393 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 09:16:21,393 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-12-09 09:16:21,393 INFO L87 Difference]: Start difference. First operand 226 states and 339 transitions. Second operand 3 states. [2020-12-09 09:16:21,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 09:16:21,420 INFO L93 Difference]: Finished difference Result 450 states and 676 transitions. [2020-12-09 09:16:21,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 09:16:21,420 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 85 [2020-12-09 09:16:21,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 09:16:21,422 INFO L225 Difference]: With dead ends: 450 [2020-12-09 09:16:21,422 INFO L226 Difference]: Without dead ends: 448 [2020-12-09 09:16:21,423 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 168 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-12-09 09:16:21,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 448 states. [2020-12-09 09:16:21,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 448 to 447. [2020-12-09 09:16:21,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 447 states. [2020-12-09 09:16:21,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 447 states to 447 states and 673 transitions. [2020-12-09 09:16:21,438 INFO L78 Accepts]: Start accepts. Automaton has 447 states and 673 transitions. Word has length 85 [2020-12-09 09:16:21,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 09:16:21,438 INFO L481 AbstractCegarLoop]: Abstraction has 447 states and 673 transitions. [2020-12-09 09:16:21,438 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 09:16:21,439 INFO L276 IsEmpty]: Start isEmpty. Operand 447 states and 673 transitions. [2020-12-09 09:16:21,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2020-12-09 09:16:21,439 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 09:16:21,440 INFO L422 BasicCegarLoop]: trace histogram [7, 6, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 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] [2020-12-09 09:16:21,640 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2020-12-09 09:16:21,640 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 09:16:21,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 09:16:21,641 INFO L82 PathProgramCache]: Analyzing trace with hash -2138752152, now seen corresponding path program 1 times [2020-12-09 09:16:21,641 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 09:16:21,641 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1713685232] [2020-12-09 09:16:21,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 09:16:21,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 09:16:21,674 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 57 proven. 0 refuted. 0 times theorem prover too weak. 130 trivial. 0 not checked. [2020-12-09 09:16:21,675 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1713685232] [2020-12-09 09:16:21,675 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 09:16:21,675 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-09 09:16:21,675 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [989783161] [2020-12-09 09:16:21,675 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 09:16:21,676 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 09:16:21,676 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 09:16:21,676 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 09:16:21,676 INFO L87 Difference]: Start difference. First operand 447 states and 673 transitions. Second operand 3 states. [2020-12-09 09:16:21,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 09:16:21,774 INFO L93 Difference]: Finished difference Result 722 states and 1081 transitions. [2020-12-09 09:16:21,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 09:16:21,775 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 106 [2020-12-09 09:16:21,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 09:16:21,777 INFO L225 Difference]: With dead ends: 722 [2020-12-09 09:16:21,777 INFO L226 Difference]: Without dead ends: 497 [2020-12-09 09:16:21,778 INFO L677 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 [2020-12-09 09:16:21,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 497 states. [2020-12-09 09:16:21,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 497 to 495. [2020-12-09 09:16:21,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 495 states. [2020-12-09 09:16:21,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 495 states to 495 states and 737 transitions. [2020-12-09 09:16:21,793 INFO L78 Accepts]: Start accepts. Automaton has 495 states and 737 transitions. Word has length 106 [2020-12-09 09:16:21,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 09:16:21,793 INFO L481 AbstractCegarLoop]: Abstraction has 495 states and 737 transitions. [2020-12-09 09:16:21,793 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 09:16:21,793 INFO L276 IsEmpty]: Start isEmpty. Operand 495 states and 737 transitions. [2020-12-09 09:16:21,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2020-12-09 09:16:21,795 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 09:16:21,795 INFO L422 BasicCegarLoop]: trace histogram [7, 6, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 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] [2020-12-09 09:16:21,795 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-12-09 09:16:21,795 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 09:16:21,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 09:16:21,795 INFO L82 PathProgramCache]: Analyzing trace with hash 1661160923, now seen corresponding path program 1 times [2020-12-09 09:16:21,795 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 09:16:21,796 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [985616689] [2020-12-09 09:16:21,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 09:16:21,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 09:16:21,842 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 57 proven. 0 refuted. 0 times theorem prover too weak. 130 trivial. 0 not checked. [2020-12-09 09:16:21,842 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [985616689] [2020-12-09 09:16:21,842 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 09:16:21,842 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-09 09:16:21,842 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [872347327] [2020-12-09 09:16:21,843 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 09:16:21,843 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 09:16:21,843 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 09:16:21,843 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 09:16:21,843 INFO L87 Difference]: Start difference. First operand 495 states and 737 transitions. Second operand 3 states. [2020-12-09 09:16:21,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 09:16:21,959 INFO L93 Difference]: Finished difference Result 748 states and 1113 transitions. [2020-12-09 09:16:21,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 09:16:21,959 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 107 [2020-12-09 09:16:21,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 09:16:21,962 INFO L225 Difference]: With dead ends: 748 [2020-12-09 09:16:21,962 INFO L226 Difference]: Without dead ends: 499 [2020-12-09 09:16:21,962 INFO L677 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 [2020-12-09 09:16:21,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 499 states. [2020-12-09 09:16:21,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 499 to 497. [2020-12-09 09:16:21,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 497 states. [2020-12-09 09:16:21,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 497 states to 497 states and 737 transitions. [2020-12-09 09:16:21,977 INFO L78 Accepts]: Start accepts. Automaton has 497 states and 737 transitions. Word has length 107 [2020-12-09 09:16:21,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 09:16:21,977 INFO L481 AbstractCegarLoop]: Abstraction has 497 states and 737 transitions. [2020-12-09 09:16:21,977 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 09:16:21,977 INFO L276 IsEmpty]: Start isEmpty. Operand 497 states and 737 transitions. [2020-12-09 09:16:21,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2020-12-09 09:16:21,979 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 09:16:21,979 INFO L422 BasicCegarLoop]: trace histogram [9, 8, 8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 5, 5, 4, 4, 3, 3, 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] [2020-12-09 09:16:21,979 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-12-09 09:16:21,979 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 09:16:21,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 09:16:21,980 INFO L82 PathProgramCache]: Analyzing trace with hash -968145497, now seen corresponding path program 1 times [2020-12-09 09:16:21,980 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 09:16:21,980 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1316320344] [2020-12-09 09:16:21,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 09:16:21,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 09:16:22,020 INFO L134 CoverageAnalysis]: Checked inductivity of 390 backedges. 103 proven. 0 refuted. 0 times theorem prover too weak. 287 trivial. 0 not checked. [2020-12-09 09:16:22,020 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1316320344] [2020-12-09 09:16:22,021 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 09:16:22,021 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-09 09:16:22,021 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1789120875] [2020-12-09 09:16:22,021 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 09:16:22,021 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 09:16:22,021 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 09:16:22,022 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 09:16:22,022 INFO L87 Difference]: Start difference. First operand 497 states and 737 transitions. Second operand 3 states. [2020-12-09 09:16:22,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 09:16:22,159 INFO L93 Difference]: Finished difference Result 1089 states and 1629 transitions. [2020-12-09 09:16:22,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 09:16:22,159 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 176 [2020-12-09 09:16:22,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 09:16:22,162 INFO L225 Difference]: With dead ends: 1089 [2020-12-09 09:16:22,162 INFO L226 Difference]: Without dead ends: 593 [2020-12-09 09:16:22,163 INFO L677 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 [2020-12-09 09:16:22,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 593 states. [2020-12-09 09:16:22,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 593 to 589. [2020-12-09 09:16:22,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 589 states. [2020-12-09 09:16:22,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 589 states to 589 states and 885 transitions. [2020-12-09 09:16:22,179 INFO L78 Accepts]: Start accepts. Automaton has 589 states and 885 transitions. Word has length 176 [2020-12-09 09:16:22,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 09:16:22,180 INFO L481 AbstractCegarLoop]: Abstraction has 589 states and 885 transitions. [2020-12-09 09:16:22,180 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 09:16:22,180 INFO L276 IsEmpty]: Start isEmpty. Operand 589 states and 885 transitions. [2020-12-09 09:16:22,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2020-12-09 09:16:22,181 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 09:16:22,182 INFO L422 BasicCegarLoop]: trace histogram [9, 8, 8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 5, 5, 4, 4, 3, 3, 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] [2020-12-09 09:16:22,182 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-12-09 09:16:22,182 INFO L429 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 09:16:22,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 09:16:22,182 INFO L82 PathProgramCache]: Analyzing trace with hash -437708390, now seen corresponding path program 1 times [2020-12-09 09:16:22,182 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 09:16:22,182 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [227329363] [2020-12-09 09:16:22,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 09:16:22,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 09:16:22,227 INFO L134 CoverageAnalysis]: Checked inductivity of 391 backedges. 104 proven. 0 refuted. 0 times theorem prover too weak. 287 trivial. 0 not checked. [2020-12-09 09:16:22,227 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [227329363] [2020-12-09 09:16:22,228 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 09:16:22,228 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-09 09:16:22,228 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1725677108] [2020-12-09 09:16:22,228 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 09:16:22,228 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 09:16:22,229 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 09:16:22,229 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 09:16:22,229 INFO L87 Difference]: Start difference. First operand 589 states and 885 transitions. Second operand 3 states. [2020-12-09 09:16:22,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 09:16:22,367 INFO L93 Difference]: Finished difference Result 1183 states and 1777 transitions. [2020-12-09 09:16:22,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 09:16:22,367 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 177 [2020-12-09 09:16:22,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 09:16:22,370 INFO L225 Difference]: With dead ends: 1183 [2020-12-09 09:16:22,370 INFO L226 Difference]: Without dead ends: 595 [2020-12-09 09:16:22,371 INFO L677 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 [2020-12-09 09:16:22,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 595 states. [2020-12-09 09:16:22,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 595 to 591. [2020-12-09 09:16:22,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 591 states. [2020-12-09 09:16:22,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 591 states to 591 states and 885 transitions. [2020-12-09 09:16:22,387 INFO L78 Accepts]: Start accepts. Automaton has 591 states and 885 transitions. Word has length 177 [2020-12-09 09:16:22,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 09:16:22,387 INFO L481 AbstractCegarLoop]: Abstraction has 591 states and 885 transitions. [2020-12-09 09:16:22,387 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 09:16:22,387 INFO L276 IsEmpty]: Start isEmpty. Operand 591 states and 885 transitions. [2020-12-09 09:16:22,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2020-12-09 09:16:22,389 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 09:16:22,389 INFO L422 BasicCegarLoop]: trace histogram [13, 12, 12, 11, 11, 11, 11, 11, 9, 9, 7, 7, 5, 5, 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] [2020-12-09 09:16:22,389 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-12-09 09:16:22,389 INFO L429 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 09:16:22,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 09:16:22,390 INFO L82 PathProgramCache]: Analyzing trace with hash 122905980, now seen corresponding path program 1 times [2020-12-09 09:16:22,390 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 09:16:22,390 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [180544737] [2020-12-09 09:16:22,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 09:16:22,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 09:16:22,448 INFO L134 CoverageAnalysis]: Checked inductivity of 719 backedges. 422 proven. 0 refuted. 0 times theorem prover too weak. 297 trivial. 0 not checked. [2020-12-09 09:16:22,448 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [180544737] [2020-12-09 09:16:22,448 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 09:16:22,448 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-09 09:16:22,448 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [847383593] [2020-12-09 09:16:22,449 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 09:16:22,449 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 09:16:22,449 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 09:16:22,449 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 09:16:22,449 INFO L87 Difference]: Start difference. First operand 591 states and 885 transitions. Second operand 3 states. [2020-12-09 09:16:22,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 09:16:22,588 INFO L93 Difference]: Finished difference Result 1281 states and 1913 transitions. [2020-12-09 09:16:22,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 09:16:22,588 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 192 [2020-12-09 09:16:22,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 09:16:22,591 INFO L225 Difference]: With dead ends: 1281 [2020-12-09 09:16:22,591 INFO L226 Difference]: Without dead ends: 673 [2020-12-09 09:16:22,592 INFO L677 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 [2020-12-09 09:16:22,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 673 states. [2020-12-09 09:16:22,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 673 to 653. [2020-12-09 09:16:22,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 653 states. [2020-12-09 09:16:22,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 653 states to 653 states and 919 transitions. [2020-12-09 09:16:22,612 INFO L78 Accepts]: Start accepts. Automaton has 653 states and 919 transitions. Word has length 192 [2020-12-09 09:16:22,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 09:16:22,612 INFO L481 AbstractCegarLoop]: Abstraction has 653 states and 919 transitions. [2020-12-09 09:16:22,612 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 09:16:22,612 INFO L276 IsEmpty]: Start isEmpty. Operand 653 states and 919 transitions. [2020-12-09 09:16:22,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2020-12-09 09:16:22,614 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 09:16:22,614 INFO L422 BasicCegarLoop]: trace histogram [13, 12, 12, 12, 12, 11, 11, 11, 9, 9, 7, 7, 5, 5, 3, 3, 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] [2020-12-09 09:16:22,614 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-12-09 09:16:22,614 INFO L429 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 09:16:22,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 09:16:22,614 INFO L82 PathProgramCache]: Analyzing trace with hash 1105866763, now seen corresponding path program 1 times [2020-12-09 09:16:22,615 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 09:16:22,615 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [720775680] [2020-12-09 09:16:22,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 09:16:22,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 09:16:22,684 INFO L134 CoverageAnalysis]: Checked inductivity of 741 backedges. 444 proven. 0 refuted. 0 times theorem prover too weak. 297 trivial. 0 not checked. [2020-12-09 09:16:22,685 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [720775680] [2020-12-09 09:16:22,685 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 09:16:22,685 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-09 09:16:22,685 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1513297443] [2020-12-09 09:16:22,685 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 09:16:22,686 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 09:16:22,686 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 09:16:22,686 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 09:16:22,686 INFO L87 Difference]: Start difference. First operand 653 states and 919 transitions. Second operand 3 states. [2020-12-09 09:16:22,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 09:16:22,822 INFO L93 Difference]: Finished difference Result 1427 states and 2007 transitions. [2020-12-09 09:16:22,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 09:16:22,822 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 194 [2020-12-09 09:16:22,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 09:16:22,825 INFO L225 Difference]: With dead ends: 1427 [2020-12-09 09:16:22,826 INFO L226 Difference]: Without dead ends: 775 [2020-12-09 09:16:22,827 INFO L677 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 [2020-12-09 09:16:22,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 775 states. [2020-12-09 09:16:22,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 775 to 677. [2020-12-09 09:16:22,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 677 states. [2020-12-09 09:16:22,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 677 states to 677 states and 947 transitions. [2020-12-09 09:16:22,848 INFO L78 Accepts]: Start accepts. Automaton has 677 states and 947 transitions. Word has length 194 [2020-12-09 09:16:22,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 09:16:22,849 INFO L481 AbstractCegarLoop]: Abstraction has 677 states and 947 transitions. [2020-12-09 09:16:22,849 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 09:16:22,849 INFO L276 IsEmpty]: Start isEmpty. Operand 677 states and 947 transitions. [2020-12-09 09:16:22,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2020-12-09 09:16:22,851 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 09:16:22,851 INFO L422 BasicCegarLoop]: trace histogram [14, 13, 13, 12, 12, 12, 12, 12, 10, 10, 8, 8, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 09:16:22,851 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-12-09 09:16:22,851 INFO L429 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 09:16:22,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 09:16:22,851 INFO L82 PathProgramCache]: Analyzing trace with hash 798770342, now seen corresponding path program 1 times [2020-12-09 09:16:22,852 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 09:16:22,852 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1215513795] [2020-12-09 09:16:22,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 09:16:22,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 09:16:22,926 INFO L134 CoverageAnalysis]: Checked inductivity of 874 backedges. 491 proven. 0 refuted. 0 times theorem prover too weak. 383 trivial. 0 not checked. [2020-12-09 09:16:22,926 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1215513795] [2020-12-09 09:16:22,926 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 09:16:22,926 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-09 09:16:22,926 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [819343895] [2020-12-09 09:16:22,927 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 09:16:22,927 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 09:16:22,927 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 09:16:22,927 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 09:16:22,927 INFO L87 Difference]: Start difference. First operand 677 states and 947 transitions. Second operand 3 states. [2020-12-09 09:16:23,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 09:16:23,053 INFO L93 Difference]: Finished difference Result 1426 states and 1993 transitions. [2020-12-09 09:16:23,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 09:16:23,053 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 219 [2020-12-09 09:16:23,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 09:16:23,056 INFO L225 Difference]: With dead ends: 1426 [2020-12-09 09:16:23,056 INFO L226 Difference]: Without dead ends: 740 [2020-12-09 09:16:23,057 INFO L677 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 [2020-12-09 09:16:23,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 740 states. [2020-12-09 09:16:23,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 740 to 720. [2020-12-09 09:16:23,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 720 states. [2020-12-09 09:16:23,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 720 states to 720 states and 997 transitions. [2020-12-09 09:16:23,076 INFO L78 Accepts]: Start accepts. Automaton has 720 states and 997 transitions. Word has length 219 [2020-12-09 09:16:23,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 09:16:23,076 INFO L481 AbstractCegarLoop]: Abstraction has 720 states and 997 transitions. [2020-12-09 09:16:23,076 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 09:16:23,076 INFO L276 IsEmpty]: Start isEmpty. Operand 720 states and 997 transitions. [2020-12-09 09:16:23,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 253 [2020-12-09 09:16:23,078 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 09:16:23,079 INFO L422 BasicCegarLoop]: trace histogram [15, 14, 14, 13, 13, 13, 13, 13, 11, 11, 9, 9, 7, 7, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 09:16:23,079 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-12-09 09:16:23,079 INFO L429 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 09:16:23,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 09:16:23,079 INFO L82 PathProgramCache]: Analyzing trace with hash 205455096, now seen corresponding path program 1 times [2020-12-09 09:16:23,079 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 09:16:23,079 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [933348121] [2020-12-09 09:16:23,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 09:16:23,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 09:16:23,151 INFO L134 CoverageAnalysis]: Checked inductivity of 1054 backedges. 560 proven. 0 refuted. 0 times theorem prover too weak. 494 trivial. 0 not checked. [2020-12-09 09:16:23,151 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [933348121] [2020-12-09 09:16:23,151 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 09:16:23,152 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-09 09:16:23,152 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [590938750] [2020-12-09 09:16:23,152 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 09:16:23,152 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 09:16:23,153 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 09:16:23,153 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 09:16:23,153 INFO L87 Difference]: Start difference. First operand 720 states and 997 transitions. Second operand 3 states. [2020-12-09 09:16:23,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 09:16:23,281 INFO L93 Difference]: Finished difference Result 1454 states and 2009 transitions. [2020-12-09 09:16:23,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 09:16:23,282 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 252 [2020-12-09 09:16:23,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 09:16:23,285 INFO L225 Difference]: With dead ends: 1454 [2020-12-09 09:16:23,285 INFO L226 Difference]: Without dead ends: 740 [2020-12-09 09:16:23,286 INFO L677 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 [2020-12-09 09:16:23,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 740 states. [2020-12-09 09:16:23,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 740 to 720. [2020-12-09 09:16:23,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 720 states. [2020-12-09 09:16:23,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 720 states to 720 states and 989 transitions. [2020-12-09 09:16:23,303 INFO L78 Accepts]: Start accepts. Automaton has 720 states and 989 transitions. Word has length 252 [2020-12-09 09:16:23,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 09:16:23,303 INFO L481 AbstractCegarLoop]: Abstraction has 720 states and 989 transitions. [2020-12-09 09:16:23,303 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 09:16:23,303 INFO L276 IsEmpty]: Start isEmpty. Operand 720 states and 989 transitions. [2020-12-09 09:16:23,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 257 [2020-12-09 09:16:23,306 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 09:16:23,306 INFO L422 BasicCegarLoop]: trace histogram [12, 11, 11, 11, 11, 11, 11, 11, 10, 10, 9, 9, 8, 8, 7, 7, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 09:16:23,306 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-12-09 09:16:23,306 INFO L429 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 09:16:23,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 09:16:23,307 INFO L82 PathProgramCache]: Analyzing trace with hash -1538258157, now seen corresponding path program 1 times [2020-12-09 09:16:23,307 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 09:16:23,307 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [825720987] [2020-12-09 09:16:23,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 09:16:23,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 09:16:23,426 INFO L134 CoverageAnalysis]: Checked inductivity of 849 backedges. 291 proven. 266 refuted. 0 times theorem prover too weak. 292 trivial. 0 not checked. [2020-12-09 09:16:23,426 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [825720987] [2020-12-09 09:16:23,426 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [189649205] [2020-12-09 09:16:23,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a1f4368c-f12a-4b56-99b2-a3f8d391ea52/bin/utaipan/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-09 09:16:23,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 09:16:23,510 INFO L263 TraceCheckSpWp]: Trace formula consists of 493 conjuncts, 5 conjunts are in the unsatisfiable core [2020-12-09 09:16:23,516 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 09:16:23,735 INFO L134 CoverageAnalysis]: Checked inductivity of 849 backedges. 308 proven. 17 refuted. 0 times theorem prover too weak. 524 trivial. 0 not checked. [2020-12-09 09:16:23,735 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 09:16:23,900 INFO L134 CoverageAnalysis]: Checked inductivity of 849 backedges. 308 proven. 17 refuted. 0 times theorem prover too weak. 524 trivial. 0 not checked. [2020-12-09 09:16:23,900 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1492319920] [2020-12-09 09:16:23,918 INFO L159 IcfgInterpreter]: Started Sifa with 67 locations of interest [2020-12-09 09:16:23,918 INFO L166 IcfgInterpreter]: Building call graph [2020-12-09 09:16:23,921 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2020-12-09 09:16:23,927 INFO L176 IcfgInterpreter]: Starting interpretation [2020-12-09 09:16:23,927 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2020-12-09 09:16:39,022 WARN L197 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 240 [2020-12-09 09:16:39,599 FATAL L? ?]: Ignoring exception! java.util.ConcurrentModificationException at java.base/java.util.HashMap.computeIfAbsent(HashMap.java:1134) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.FixpointLoopSummarizer.summarize(FixpointLoopSummarizer.java:94) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretLoop(DagInterpreter.java:177) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:168) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:123) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpretLoisInProcedure(IcfgInterpreter.java:136) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpret(IcfgInterpreter.java:127) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:102) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:67) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:289) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:189) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:179) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:84) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:74) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:511) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:438) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:372) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopResult.iterate(CegarLoopResult.java:138) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterateNew(TraceAbstractionStarter.java:345) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:198) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:150) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2020-12-09 09:16:39,600 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2020-12-09 09:16:39,600 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 4, 4] total 10 [2020-12-09 09:16:39,600 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [813364310] [2020-12-09 09:16:39,601 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-12-09 09:16:39,601 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 09:16:39,601 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-12-09 09:16:39,601 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2020-12-09 09:16:39,601 INFO L87 Difference]: Start difference. First operand 720 states and 989 transitions. Second operand 10 states. [2020-12-09 09:16:40,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 09:16:40,747 INFO L93 Difference]: Finished difference Result 2783 states and 3771 transitions. [2020-12-09 09:16:40,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-12-09 09:16:40,747 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 256 [2020-12-09 09:16:40,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 09:16:40,757 INFO L225 Difference]: With dead ends: 2783 [2020-12-09 09:16:40,757 INFO L226 Difference]: Without dead ends: 1809 [2020-12-09 09:16:40,759 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 545 GetRequests, 521 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=208, Invalid=442, Unknown=0, NotChecked=0, Total=650 [2020-12-09 09:16:40,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1809 states. [2020-12-09 09:16:40,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1809 to 827. [2020-12-09 09:16:40,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 827 states. [2020-12-09 09:16:40,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 827 states to 827 states and 1085 transitions. [2020-12-09 09:16:40,789 INFO L78 Accepts]: Start accepts. Automaton has 827 states and 1085 transitions. Word has length 256 [2020-12-09 09:16:40,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 09:16:40,790 INFO L481 AbstractCegarLoop]: Abstraction has 827 states and 1085 transitions. [2020-12-09 09:16:40,790 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-12-09 09:16:40,790 INFO L276 IsEmpty]: Start isEmpty. Operand 827 states and 1085 transitions. [2020-12-09 09:16:40,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 288 [2020-12-09 09:16:40,792 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 09:16:40,792 INFO L422 BasicCegarLoop]: trace histogram [16, 15, 15, 15, 15, 14, 14, 14, 12, 12, 10, 10, 8, 8, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 09:16:40,993 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-09 09:16:40,993 INFO L429 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 09:16:40,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 09:16:40,994 INFO L82 PathProgramCache]: Analyzing trace with hash 25813171, now seen corresponding path program 1 times [2020-12-09 09:16:40,994 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 09:16:40,994 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [667421117] [2020-12-09 09:16:40,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 09:16:41,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 09:16:41,217 INFO L134 CoverageAnalysis]: Checked inductivity of 1291 backedges. 847 proven. 42 refuted. 0 times theorem prover too weak. 402 trivial. 0 not checked. [2020-12-09 09:16:41,217 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [667421117] [2020-12-09 09:16:41,217 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [322210992] [2020-12-09 09:16:41,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a1f4368c-f12a-4b56-99b2-a3f8d391ea52/bin/utaipan/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-09 09:16:41,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 09:16:41,295 INFO L263 TraceCheckSpWp]: Trace formula consists of 575 conjuncts, 4 conjunts are in the unsatisfiable core [2020-12-09 09:16:41,300 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 09:16:41,511 INFO L134 CoverageAnalysis]: Checked inductivity of 1291 backedges. 769 proven. 120 refuted. 0 times theorem prover too weak. 402 trivial. 0 not checked. [2020-12-09 09:16:41,511 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 09:16:41,730 INFO L134 CoverageAnalysis]: Checked inductivity of 1291 backedges. 847 proven. 42 refuted. 0 times theorem prover too weak. 402 trivial. 0 not checked. [2020-12-09 09:16:41,731 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [669236575] [2020-12-09 09:16:41,733 INFO L159 IcfgInterpreter]: Started Sifa with 61 locations of interest [2020-12-09 09:16:41,733 INFO L166 IcfgInterpreter]: Building call graph [2020-12-09 09:16:41,734 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2020-12-09 09:16:41,734 INFO L176 IcfgInterpreter]: Starting interpretation [2020-12-09 09:16:41,734 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2020-12-09 09:16:45,799 FATAL L? ?]: Ignoring exception! java.util.ConcurrentModificationException at java.base/java.util.HashMap.computeIfAbsent(HashMap.java:1134) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.FixpointLoopSummarizer.summarize(FixpointLoopSummarizer.java:94) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretLoop(DagInterpreter.java:177) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:168) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:123) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpretLoisInProcedure(IcfgInterpreter.java:136) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpret(IcfgInterpreter.java:127) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:102) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:67) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:289) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:189) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:179) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:84) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:74) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:511) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:438) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:372) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopResult.iterate(CegarLoopResult.java:138) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterateNew(TraceAbstractionStarter.java:345) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:198) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:150) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2020-12-09 09:16:45,799 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2020-12-09 09:16:45,799 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 9 [2020-12-09 09:16:45,800 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [860287904] [2020-12-09 09:16:45,800 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-09 09:16:45,800 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 09:16:45,801 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-09 09:16:45,801 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2020-12-09 09:16:45,801 INFO L87 Difference]: Start difference. First operand 827 states and 1085 transitions. Second operand 9 states. [2020-12-09 09:16:46,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 09:16:46,260 INFO L93 Difference]: Finished difference Result 1816 states and 2362 transitions. [2020-12-09 09:16:46,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-12-09 09:16:46,261 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 287 [2020-12-09 09:16:46,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 09:16:46,261 INFO L225 Difference]: With dead ends: 1816 [2020-12-09 09:16:46,261 INFO L226 Difference]: Without dead ends: 0 [2020-12-09 09:16:46,263 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 589 GetRequests, 576 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=79, Invalid=131, Unknown=0, NotChecked=0, Total=210 [2020-12-09 09:16:46,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-09 09:16:46,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-09 09:16:46,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-09 09:16:46,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-09 09:16:46,264 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 287 [2020-12-09 09:16:46,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 09:16:46,264 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-09 09:16:46,264 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-09 09:16:46,264 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-09 09:16:46,264 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-09 09:16:46,465 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable44 [2020-12-09 09:16:46,470 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-12-09 09:16:47,294 WARN L197 SmtUtils]: Spent 472.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 69 [2020-12-09 09:16:47,781 WARN L197 SmtUtils]: Spent 442.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 68 [2020-12-09 09:16:48,529 INFO L258 CegarLoopResult]: At program point L168(lines 164 494) the Hoare annotation is: (let ((.cse0 (<= 4464 ULTIMATE.start_ssl3_connect_~s__state~0)) (.cse1 (<= ULTIMATE.start_ssl3_connect_~s__state~0 4512))) (or (and .cse0 .cse1 (= ULTIMATE.start_ssl3_connect_~s__hit~0 0)) (and .cse0 (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4) .cse1))) [2020-12-09 09:16:48,529 INFO L262 CegarLoopResult]: For program point L400(lines 400 402) no Hoare annotation was computed. [2020-12-09 09:16:48,529 INFO L262 CegarLoopResult]: For program point L367(lines 367 369) no Hoare annotation was computed. [2020-12-09 09:16:48,529 INFO L262 CegarLoopResult]: For program point L170(lines 170 492) no Hoare annotation was computed. [2020-12-09 09:16:48,529 INFO L262 CegarLoopResult]: For program point L137(lines 137 503) no Hoare annotation was computed. [2020-12-09 09:16:48,529 INFO L262 CegarLoopResult]: For program point L104(lines 104 514) no Hoare annotation was computed. [2020-12-09 09:16:48,529 INFO L258 CegarLoopResult]: At program point L138(lines 134 504) the Hoare annotation is: (and (not (= 4385 ULTIMATE.start_ssl3_connect_~s__state~0)) (not (= ULTIMATE.start_ssl3_connect_~s__state~0 4433)) (not (= 4432 ULTIMATE.start_ssl3_connect_~s__state~0)) (<= ULTIMATE.start_ssl3_connect_~s__state~0 4480) (not (= ULTIMATE.start_ssl3_connect_~s__state~0 4384)) (not (= 4400 ULTIMATE.start_ssl3_connect_~s__state~0)) (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4) (<= 4352 ULTIMATE.start_ssl3_connect_~s__state~0) (not (= 4449 ULTIMATE.start_ssl3_connect_~s__state~0)) (not (= ULTIMATE.start_ssl3_connect_~s__state~0 4448)) (not (= 4352 ULTIMATE.start_ssl3_connect_~s__state~0)) (not (= ULTIMATE.start_ssl3_connect_~s__state~0 4368)) (not (= 4401 ULTIMATE.start_ssl3_connect_~s__state~0)) (not (= 4369 ULTIMATE.start_ssl3_connect_~s__state~0)) (= ULTIMATE.start_ssl3_connect_~s__hit~0 0)) [2020-12-09 09:16:48,529 INFO L265 CegarLoopResult]: At program point L535(lines 97 536) the Hoare annotation is: true [2020-12-09 09:16:48,529 INFO L262 CegarLoopResult]: For program point L238(lines 238 241) no Hoare annotation was computed. [2020-12-09 09:16:48,529 INFO L262 CegarLoopResult]: For program point L305(lines 305 308) no Hoare annotation was computed. [2020-12-09 09:16:48,530 INFO L258 CegarLoopResult]: At program point L206(lines 104 514) the Hoare annotation is: (and (not (= 4385 ULTIMATE.start_ssl3_connect_~s__state~0)) (not (= ULTIMATE.start_ssl3_connect_~s__state~0 4528)) (not (= ULTIMATE.start_ssl3_connect_~s__state~0 4433)) (not (= 4432 ULTIMATE.start_ssl3_connect_~s__state~0)) (not (= ULTIMATE.start_ssl3_connect_~s__state~0 4384)) (not (= 4400 ULTIMATE.start_ssl3_connect_~s__state~0)) (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4) (not (= 4417 ULTIMATE.start_ssl3_connect_~s__state~0)) (not (= 4529 ULTIMATE.start_ssl3_connect_~s__state~0)) (not (= 4449 ULTIMATE.start_ssl3_connect_~s__state~0)) (not (= ULTIMATE.start_ssl3_connect_~s__state~0 4448)) (not (= 4352 ULTIMATE.start_ssl3_connect_~s__state~0)) (not (= ULTIMATE.start_ssl3_connect_~s__state~0 4368)) (not (= 4401 ULTIMATE.start_ssl3_connect_~s__state~0)) (not (= ULTIMATE.start_ssl3_connect_~s__state~0 4416)) (not (= 4369 ULTIMATE.start_ssl3_connect_~s__state~0))) [2020-12-09 09:16:48,530 INFO L262 CegarLoopResult]: For program point L173(lines 173 491) no Hoare annotation was computed. [2020-12-09 09:16:48,530 INFO L262 CegarLoopResult]: For program point L140(lines 140 502) no Hoare annotation was computed. [2020-12-09 09:16:48,530 INFO L262 CegarLoopResult]: For program point L107(lines 107 513) no Hoare annotation was computed. [2020-12-09 09:16:48,530 INFO L258 CegarLoopResult]: At program point L174(lines 170 492) the Hoare annotation is: (let ((.cse0 (<= 4464 ULTIMATE.start_ssl3_connect_~s__state~0)) (.cse1 (<= ULTIMATE.start_ssl3_connect_~s__state~0 4512))) (or (and .cse0 .cse1 (= ULTIMATE.start_ssl3_connect_~s__hit~0 0)) (and .cse0 (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4) .cse1))) [2020-12-09 09:16:48,530 INFO L262 CegarLoopResult]: For program point L440(lines 440 451) no Hoare annotation was computed. [2020-12-09 09:16:48,530 INFO L262 CegarLoopResult]: For program point L440-2(lines 440 451) no Hoare annotation was computed. [2020-12-09 09:16:48,530 INFO L262 CegarLoopResult]: For program point L176(lines 176 490) no Hoare annotation was computed. [2020-12-09 09:16:48,530 INFO L262 CegarLoopResult]: For program point L143(lines 143 501) no Hoare annotation was computed. [2020-12-09 09:16:48,530 INFO L262 CegarLoopResult]: For program point L110(lines 110 512) no Hoare annotation was computed. [2020-12-09 09:16:48,531 INFO L258 CegarLoopResult]: At program point L144(lines 140 502) the Hoare annotation is: (and (not (= 4385 ULTIMATE.start_ssl3_connect_~s__state~0)) (<= ULTIMATE.start_ssl3_connect_~s__state~0 4480) (not (= ULTIMATE.start_ssl3_connect_~s__state~0 4384)) (not (= 4400 ULTIMATE.start_ssl3_connect_~s__state~0)) (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4) (not (= 4417 ULTIMATE.start_ssl3_connect_~s__state~0)) (<= 4352 ULTIMATE.start_ssl3_connect_~s__state~0) (not (= 4449 ULTIMATE.start_ssl3_connect_~s__state~0)) (not (= ULTIMATE.start_ssl3_connect_~s__state~0 4448)) (not (= 4352 ULTIMATE.start_ssl3_connect_~s__state~0)) (not (= ULTIMATE.start_ssl3_connect_~s__state~0 4368)) (not (= 4401 ULTIMATE.start_ssl3_connect_~s__state~0)) (not (= ULTIMATE.start_ssl3_connect_~s__state~0 4416)) (not (= 4369 ULTIMATE.start_ssl3_connect_~s__state~0)) (= ULTIMATE.start_ssl3_connect_~s__hit~0 0)) [2020-12-09 09:16:48,531 INFO L262 CegarLoopResult]: For program point L343(lines 343 345) no Hoare annotation was computed. [2020-12-09 09:16:48,531 INFO L262 CegarLoopResult]: For program point L377(lines 377 379) no Hoare annotation was computed. [2020-12-09 09:16:48,531 INFO L262 CegarLoopResult]: For program point L179(lines 179 489) no Hoare annotation was computed. [2020-12-09 09:16:48,531 INFO L262 CegarLoopResult]: For program point L146(lines 146 500) no Hoare annotation was computed. [2020-12-09 09:16:48,531 INFO L262 CegarLoopResult]: For program point L113(lines 113 511) no Hoare annotation was computed. [2020-12-09 09:16:48,531 INFO L258 CegarLoopResult]: At program point L180(lines 176 490) the Hoare annotation is: (let ((.cse0 (<= ULTIMATE.start_ssl3_connect_~s__state~0 4528)) (.cse1 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 4528))) (.cse2 (<= 4464 ULTIMATE.start_ssl3_connect_~s__state~0))) (or (and .cse0 .cse1 .cse2 (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4)) (and .cse0 .cse1 .cse2 (= ULTIMATE.start_ssl3_connect_~s__hit~0 0)))) [2020-12-09 09:16:48,531 INFO L262 CegarLoopResult]: For program point L445(lines 445 448) no Hoare annotation was computed. [2020-12-09 09:16:48,531 INFO L262 CegarLoopResult]: For program point L313(lines 313 315) no Hoare annotation was computed. [2020-12-09 09:16:48,531 INFO L262 CegarLoopResult]: For program point L280-1(lines 280 290) no Hoare annotation was computed. [2020-12-09 09:16:48,531 INFO L265 CegarLoopResult]: At program point L545(lines 12 547) the Hoare annotation is: true [2020-12-09 09:16:48,532 INFO L258 CegarLoopResult]: At program point L314(lines 76 546) the Hoare annotation is: false [2020-12-09 09:16:48,532 INFO L262 CegarLoopResult]: For program point L182(lines 182 488) no Hoare annotation was computed. [2020-12-09 09:16:48,532 INFO L262 CegarLoopResult]: For program point L149(lines 149 499) no Hoare annotation was computed. [2020-12-09 09:16:48,532 INFO L262 CegarLoopResult]: For program point L116(lines 116 510) no Hoare annotation was computed. [2020-12-09 09:16:48,532 INFO L262 CegarLoopResult]: For program point L216(lines 216 219) no Hoare annotation was computed. [2020-12-09 09:16:48,532 INFO L258 CegarLoopResult]: At program point L150(lines 146 500) the Hoare annotation is: (and (not (= 4385 ULTIMATE.start_ssl3_connect_~s__state~0)) (not (= ULTIMATE.start_ssl3_connect_~s__state~0 4433)) (not (= 4432 ULTIMATE.start_ssl3_connect_~s__state~0)) (<= ULTIMATE.start_ssl3_connect_~s__state~0 4480) (not (= ULTIMATE.start_ssl3_connect_~s__state~0 4384)) (not (= 4400 ULTIMATE.start_ssl3_connect_~s__state~0)) (not (= 4417 ULTIMATE.start_ssl3_connect_~s__state~0)) (<= 4352 ULTIMATE.start_ssl3_connect_~s__state~0) (not (= 4352 ULTIMATE.start_ssl3_connect_~s__state~0)) (not (= ULTIMATE.start_ssl3_connect_~s__state~0 4368)) (not (= 4401 ULTIMATE.start_ssl3_connect_~s__state~0)) (not (= ULTIMATE.start_ssl3_connect_~s__state~0 4416)) (not (= 4369 ULTIMATE.start_ssl3_connect_~s__state~0)) (= ULTIMATE.start_ssl3_connect_~s__hit~0 0)) [2020-12-09 09:16:48,532 INFO L258 CegarLoopResult]: At program point L481(lines 98 534) the Hoare annotation is: (let ((.cse15 (= ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0 4560)) (.cse16 (= ULTIMATE.start_ssl3_connect_~s__state~0 4560)) (.cse14 (= 4352 ULTIMATE.start_ssl3_connect_~s__state~0))) (let ((.cse10 (<= ULTIMATE.start_ssl3_connect_~s__state~0 4528)) (.cse11 (<= 4464 ULTIMATE.start_ssl3_connect_~s__state~0)) (.cse6 (not .cse14)) (.cse12 (or (= 3 ULTIMATE.start_ssl3_connect_~s__state~0) .cse16)) (.cse9 (= ULTIMATE.start_ssl3_connect_~s__hit~0 0)) (.cse0 (not (= 4385 ULTIMATE.start_ssl3_connect_~s__state~0))) (.cse2 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 4433))) (.cse17 (not (= 4432 ULTIMATE.start_ssl3_connect_~s__state~0))) (.cse4 (<= ULTIMATE.start_ssl3_connect_~s__state~0 4512)) (.cse18 (not (= 4400 ULTIMATE.start_ssl3_connect_~s__state~0))) (.cse1 (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4)) (.cse3 (not (= 4417 ULTIMATE.start_ssl3_connect_~s__state~0))) (.cse5 (not (= 4449 ULTIMATE.start_ssl3_connect_~s__state~0))) (.cse19 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 4448))) (.cse7 (not (= 4401 ULTIMATE.start_ssl3_connect_~s__state~0))) (.cse20 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 4416))) (.cse13 (or (= 3 ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0) .cse15)) (.cse8 (not (= 4369 ULTIMATE.start_ssl3_connect_~s__state~0)))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9) (and .cse10 .cse11 .cse9) (and .cse1 .cse12 .cse13) (and .cse10 .cse11 .cse1) (and .cse14 .cse15 .cse9) (and (not .cse9) .cse1 .cse16) (and .cse0 .cse2 .cse17 .cse4 .cse18 .cse1 .cse3 (<= 4352 ULTIMATE.start_ssl3_connect_~s__state~0) .cse5 .cse19 .cse6 .cse7 .cse20 .cse8) (and .cse12 .cse15 .cse9) (and .cse0 .cse2 .cse17 .cse4 .cse18 .cse1 .cse3 .cse5 .cse19 .cse7 .cse20 .cse13 .cse8)))) [2020-12-09 09:16:48,532 INFO L262 CegarLoopResult]: For program point L316(lines 316 318) no Hoare annotation was computed. [2020-12-09 09:16:48,533 INFO L262 CegarLoopResult]: For program point L250-2(lines 201 480) no Hoare annotation was computed. [2020-12-09 09:16:48,533 INFO L262 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-12-09 09:16:48,533 INFO L262 CegarLoopResult]: For program point L383-2(lines 201 480) no Hoare annotation was computed. [2020-12-09 09:16:48,533 INFO L262 CegarLoopResult]: For program point L284-2(lines 282 290) no Hoare annotation was computed. [2020-12-09 09:16:48,533 INFO L262 CegarLoopResult]: For program point L185(lines 185 487) no Hoare annotation was computed. [2020-12-09 09:16:48,533 INFO L262 CegarLoopResult]: For program point L152(lines 152 498) no Hoare annotation was computed. [2020-12-09 09:16:48,533 INFO L262 CegarLoopResult]: For program point L119(lines 119 509) no Hoare annotation was computed. [2020-12-09 09:16:48,533 INFO L262 CegarLoopResult]: For program point L516(lines 516 532) no Hoare annotation was computed. [2020-12-09 09:16:48,533 INFO L258 CegarLoopResult]: At program point L186(lines 182 488) the Hoare annotation is: (let ((.cse0 (<= 4464 ULTIMATE.start_ssl3_connect_~s__state~0))) (or (and .cse0 (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4)) (and .cse0 (= ULTIMATE.start_ssl3_connect_~s__hit~0 0)))) [2020-12-09 09:16:48,533 INFO L258 CegarLoopResult]: At program point L120(lines 116 510) the Hoare annotation is: (and (not (= 4385 ULTIMATE.start_ssl3_connect_~s__state~0)) (not (= ULTIMATE.start_ssl3_connect_~s__state~0 4433)) (not (= 4432 ULTIMATE.start_ssl3_connect_~s__state~0)) (<= ULTIMATE.start_ssl3_connect_~s__state~0 4480) (not (= ULTIMATE.start_ssl3_connect_~s__state~0 4384)) (not (= 4400 ULTIMATE.start_ssl3_connect_~s__state~0)) (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4) (not (= 4417 ULTIMATE.start_ssl3_connect_~s__state~0)) (<= 4352 ULTIMATE.start_ssl3_connect_~s__state~0) (not (= 4449 ULTIMATE.start_ssl3_connect_~s__state~0)) (not (= ULTIMATE.start_ssl3_connect_~s__state~0 4448)) (not (= 4352 ULTIMATE.start_ssl3_connect_~s__state~0)) (not (= 4401 ULTIMATE.start_ssl3_connect_~s__state~0)) (not (= ULTIMATE.start_ssl3_connect_~s__state~0 4416))) [2020-12-09 09:16:48,533 INFO L262 CegarLoopResult]: For program point L517(lines 517 531) no Hoare annotation was computed. [2020-12-09 09:16:48,533 INFO L262 CegarLoopResult]: For program point L352(lines 352 354) no Hoare annotation was computed. [2020-12-09 09:16:48,533 INFO L262 CegarLoopResult]: For program point L518(lines 518 523) no Hoare annotation was computed. [2020-12-09 09:16:48,534 INFO L262 CegarLoopResult]: For program point L518-2(lines 517 531) no Hoare annotation was computed. [2020-12-09 09:16:48,534 INFO L262 CegarLoopResult]: For program point L188(lines 188 486) no Hoare annotation was computed. [2020-12-09 09:16:48,534 INFO L262 CegarLoopResult]: For program point L155(lines 155 497) no Hoare annotation was computed. [2020-12-09 09:16:48,534 INFO L262 CegarLoopResult]: For program point L122(lines 122 508) no Hoare annotation was computed. [2020-12-09 09:16:48,534 INFO L262 CegarLoopResult]: For program point L222(lines 222 233) no Hoare annotation was computed. [2020-12-09 09:16:48,534 INFO L262 CegarLoopResult]: For program point L222-2(lines 201 480) no Hoare annotation was computed. [2020-12-09 09:16:48,534 INFO L262 CegarLoopResult]: For program point L520(lines 520 522) no Hoare annotation was computed. [2020-12-09 09:16:48,534 INFO L262 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-12-09 09:16:48,534 INFO L262 CegarLoopResult]: For program point L224(lines 224 227) no Hoare annotation was computed. [2020-12-09 09:16:48,534 INFO L262 CegarLoopResult]: For program point L191(lines 191 485) no Hoare annotation was computed. [2020-12-09 09:16:48,534 INFO L262 CegarLoopResult]: For program point L158(lines 158 496) no Hoare annotation was computed. [2020-12-09 09:16:48,534 INFO L262 CegarLoopResult]: For program point L125(lines 125 507) no Hoare annotation was computed. [2020-12-09 09:16:48,534 INFO L258 CegarLoopResult]: At program point L192(lines 188 486) the Hoare annotation is: (let ((.cse3 (= ULTIMATE.start_ssl3_connect_~s__hit~0 0)) (.cse0 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 4528))) (.cse1 (<= 4464 ULTIMATE.start_ssl3_connect_~s__state~0)) (.cse2 (not (= 4529 ULTIMATE.start_ssl3_connect_~s__state~0)))) (or (and .cse0 .cse1 .cse2 (= ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0 4560) .cse3) (and (or (<= 4560 ULTIMATE.start_ssl3_connect_~s__state~0) .cse3) .cse0 .cse1 (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4) .cse2))) [2020-12-09 09:16:48,534 INFO L258 CegarLoopResult]: At program point L126(lines 122 508) the Hoare annotation is: (and (not (= ULTIMATE.start_ssl3_connect_~s__state~0 4433)) (not (= 4432 ULTIMATE.start_ssl3_connect_~s__state~0)) (<= ULTIMATE.start_ssl3_connect_~s__state~0 4480) (not (= 4400 ULTIMATE.start_ssl3_connect_~s__state~0)) (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4) (not (= 4417 ULTIMATE.start_ssl3_connect_~s__state~0)) (<= 4352 ULTIMATE.start_ssl3_connect_~s__state~0) (not (= 4449 ULTIMATE.start_ssl3_connect_~s__state~0)) (not (= ULTIMATE.start_ssl3_connect_~s__state~0 4448)) (not (= 4352 ULTIMATE.start_ssl3_connect_~s__state~0)) (not (= 4401 ULTIMATE.start_ssl3_connect_~s__state~0)) (not (= ULTIMATE.start_ssl3_connect_~s__state~0 4368)) (not (= ULTIMATE.start_ssl3_connect_~s__state~0 4416)) (not (= 4369 ULTIMATE.start_ssl3_connect_~s__state~0))) [2020-12-09 09:16:48,534 INFO L262 CegarLoopResult]: For program point L325-2(lines 201 480) no Hoare annotation was computed. [2020-12-09 09:16:48,534 INFO L262 CegarLoopResult]: For program point L392(lines 392 395) no Hoare annotation was computed. [2020-12-09 09:16:48,534 INFO L258 CegarLoopResult]: At program point L194(lines 194 484) the Hoare annotation is: (let ((.cse0 (not (= 4400 ULTIMATE.start_ssl3_connect_~s__state~0))) (.cse1 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 4433))) (.cse3 (not (= 4432 ULTIMATE.start_ssl3_connect_~s__state~0))) (.cse2 (not (= 4417 ULTIMATE.start_ssl3_connect_~s__state~0))) (.cse4 (not (= 4401 ULTIMATE.start_ssl3_connect_~s__state~0))) (.cse6 (= ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0 4560)) (.cse5 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 4416)))) (or (and .cse0 .cse1 .cse2 .cse3 (not (= 4352 ULTIMATE.start_ssl3_connect_~s__state~0)) .cse4 .cse5) (and .cse0 (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4) .cse1 .cse3 .cse2 .cse4 .cse5 (or (= 3 ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0) .cse6)) (and .cse0 .cse1 .cse3 .cse2 .cse4 .cse6 .cse5 (= ULTIMATE.start_ssl3_connect_~s__hit~0 0)))) [2020-12-09 09:16:48,534 INFO L262 CegarLoopResult]: For program point L161(lines 161 495) no Hoare annotation was computed. [2020-12-09 09:16:48,534 INFO L262 CegarLoopResult]: For program point L128(lines 128 506) no Hoare annotation was computed. [2020-12-09 09:16:48,534 INFO L262 CegarLoopResult]: For program point L228(lines 228 231) no Hoare annotation was computed. [2020-12-09 09:16:48,535 INFO L258 CegarLoopResult]: At program point L162(lines 152 498) the Hoare annotation is: (let ((.cse0 (<= 4464 ULTIMATE.start_ssl3_connect_~s__state~0)) (.cse1 (<= ULTIMATE.start_ssl3_connect_~s__state~0 4480))) (or (and .cse0 (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4) .cse1) (and .cse0 .cse1 (= ULTIMATE.start_ssl3_connect_~s__hit~0 0)))) [2020-12-09 09:16:48,535 INFO L262 CegarLoopResult]: For program point L427(lines 427 429) no Hoare annotation was computed. [2020-12-09 09:16:48,535 INFO L262 CegarLoopResult]: For program point L164(lines 164 494) no Hoare annotation was computed. [2020-12-09 09:16:48,535 INFO L262 CegarLoopResult]: For program point L131(lines 131 505) no Hoare annotation was computed. [2020-12-09 09:16:48,535 INFO L262 CegarLoopResult]: For program point L98-1(lines 76 546) no Hoare annotation was computed. [2020-12-09 09:16:48,535 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 544) no Hoare annotation was computed. [2020-12-09 09:16:48,535 INFO L262 CegarLoopResult]: For program point L297-2(lines 201 480) no Hoare annotation was computed. [2020-12-09 09:16:48,535 INFO L258 CegarLoopResult]: At program point L132(lines 128 506) the Hoare annotation is: (and (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4) (= 4400 ULTIMATE.start_ssl3_connect_~s__state~0) (= ULTIMATE.start_ssl3_connect_~s__hit~0 0)) [2020-12-09 09:16:48,535 INFO L262 CegarLoopResult]: For program point L265-2(lines 201 480) no Hoare annotation was computed. [2020-12-09 09:16:48,535 INFO L262 CegarLoopResult]: For program point L167(lines 167 493) no Hoare annotation was computed. [2020-12-09 09:16:48,535 INFO L262 CegarLoopResult]: For program point L134(lines 134 504) no Hoare annotation was computed. [2020-12-09 09:16:48,535 INFO L258 CegarLoopResult]: At program point L101(lines 101 515) the Hoare annotation is: (let ((.cse11 (= 4352 ULTIMATE.start_ssl3_connect_~s__state~0))) (let ((.cse9 (<= ULTIMATE.start_ssl3_connect_~s__state~0 4528)) (.cse10 (<= 4464 ULTIMATE.start_ssl3_connect_~s__state~0)) (.cse5 (not .cse11)) (.cse8 (= ULTIMATE.start_ssl3_connect_~s__hit~0 0)) (.cse0 (not (= 4385 ULTIMATE.start_ssl3_connect_~s__state~0))) (.cse2 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 4433))) (.cse13 (not (= 4432 ULTIMATE.start_ssl3_connect_~s__state~0))) (.cse14 (<= ULTIMATE.start_ssl3_connect_~s__state~0 4512)) (.cse15 (not (= 4400 ULTIMATE.start_ssl3_connect_~s__state~0))) (.cse1 (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4)) (.cse3 (not (= 4417 ULTIMATE.start_ssl3_connect_~s__state~0))) (.cse4 (not (= 4449 ULTIMATE.start_ssl3_connect_~s__state~0))) (.cse16 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 4448))) (.cse6 (not (= 4401 ULTIMATE.start_ssl3_connect_~s__state~0))) (.cse17 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 4416))) (.cse12 (= ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0 4560)) (.cse7 (not (= 4369 ULTIMATE.start_ssl3_connect_~s__state~0)))) (or (and .cse0 .cse1 .cse2 .cse3 (not (= 4529 ULTIMATE.start_ssl3_connect_~s__state~0)) .cse4 .cse5 .cse6 .cse7 .cse8) (and .cse9 .cse10 .cse8) (and .cse9 .cse10 .cse1) (and .cse1 (<= 4560 ULTIMATE.start_ssl3_connect_~s__state~0)) (and .cse11 .cse12 .cse8) (and .cse0 .cse2 .cse13 .cse14 .cse15 .cse1 .cse3 (<= 4352 ULTIMATE.start_ssl3_connect_~s__state~0) .cse4 .cse16 .cse5 .cse6 .cse17 .cse7) (and (or (= 3 ULTIMATE.start_ssl3_connect_~s__state~0) (= ULTIMATE.start_ssl3_connect_~s__state~0 4560)) .cse12 .cse8) (and .cse0 .cse2 .cse13 .cse14 .cse15 .cse1 .cse3 .cse4 .cse16 .cse6 .cse17 (or (= 3 ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0) .cse12) .cse7)))) [2020-12-09 09:16:48,561 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 09:16:48 BoogieIcfgContainer [2020-12-09 09:16:48,561 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-09 09:16:48,562 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-09 09:16:48,562 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-09 09:16:48,562 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-09 09:16:48,562 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 09:16:19" (3/4) ... [2020-12-09 09:16:48,565 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-09 09:16:48,580 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 36 nodes and edges [2020-12-09 09:16:48,581 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-12-09 09:16:48,582 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-12-09 09:16:48,583 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-09 09:16:48,651 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_a1f4368c-f12a-4b56-99b2-a3f8d391ea52/bin/utaipan/witness.graphml [2020-12-09 09:16:48,651 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-09 09:16:48,652 INFO L168 Benchmark]: Toolchain (without parser) took 30533.06 ms. Allocated memory was 115.3 MB in the beginning and 3.1 GB in the end (delta: 3.0 GB). Free memory was 93.1 MB in the beginning and 828.7 MB in the end (delta: -735.6 MB). Peak memory consumption was 2.3 GB. Max. memory is 16.1 GB. [2020-12-09 09:16:48,652 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 67.1 MB. Free memory is still 43.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 09:16:48,652 INFO L168 Benchmark]: CACSL2BoogieTranslator took 244.04 ms. Allocated memory is still 115.3 MB. Free memory was 93.1 MB in the beginning and 78.5 MB in the end (delta: 14.6 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2020-12-09 09:16:48,652 INFO L168 Benchmark]: Boogie Procedure Inliner took 41.99 ms. Allocated memory is still 115.3 MB. Free memory was 78.5 MB in the beginning and 76.0 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-09 09:16:48,653 INFO L168 Benchmark]: Boogie Preprocessor took 27.98 ms. Allocated memory is still 115.3 MB. Free memory was 76.0 MB in the beginning and 73.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-09 09:16:48,653 INFO L168 Benchmark]: RCFGBuilder took 758.50 ms. Allocated memory was 115.3 MB in the beginning and 138.4 MB in the end (delta: 23.1 MB). Free memory was 73.9 MB in the beginning and 71.1 MB in the end (delta: 2.8 MB). Peak memory consumption was 29.4 MB. Max. memory is 16.1 GB. [2020-12-09 09:16:48,653 INFO L168 Benchmark]: TraceAbstraction took 29366.97 ms. Allocated memory was 138.4 MB in the beginning and 3.1 GB in the end (delta: 3.0 GB). Free memory was 71.1 MB in the beginning and 839.2 MB in the end (delta: -768.1 MB). Peak memory consumption was 2.2 GB. Max. memory is 16.1 GB. [2020-12-09 09:16:48,654 INFO L168 Benchmark]: Witness Printer took 89.36 ms. Allocated memory is still 3.1 GB. Free memory was 838.1 MB in the beginning and 828.7 MB in the end (delta: 9.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-12-09 09:16:48,655 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 67.1 MB. Free memory is still 43.3 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 244.04 ms. Allocated memory is still 115.3 MB. Free memory was 93.1 MB in the beginning and 78.5 MB in the end (delta: 14.6 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 41.99 ms. Allocated memory is still 115.3 MB. Free memory was 78.5 MB in the beginning and 76.0 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 27.98 ms. Allocated memory is still 115.3 MB. Free memory was 76.0 MB in the beginning and 73.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 758.50 ms. Allocated memory was 115.3 MB in the beginning and 138.4 MB in the end (delta: 23.1 MB). Free memory was 73.9 MB in the beginning and 71.1 MB in the end (delta: 2.8 MB). Peak memory consumption was 29.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 29366.97 ms. Allocated memory was 138.4 MB in the beginning and 3.1 GB in the end (delta: 3.0 GB). Free memory was 71.1 MB in the beginning and 839.2 MB in the end (delta: -768.1 MB). Peak memory consumption was 2.2 GB. Max. memory is 16.1 GB. * Witness Printer took 89.36 ms. Allocated memory is still 3.1 GB. Free memory was 838.1 MB in the beginning and 828.7 MB in the end (delta: 9.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 544]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 182]: Loop Invariant Derived loop invariant: (4464 <= s__state && blastFlag <= 4) || (4464 <= s__state && s__hit == 0) - InvariantResult [Line: 101]: Loop Invariant Derived loop invariant: (((((((((((((((!(4385 == s__state) && blastFlag <= 4) && !(s__state == 4433)) && !(4417 == s__state)) && !(4529 == s__state)) && !(4449 == s__state)) && !(4352 == s__state)) && !(4401 == s__state)) && !(4369 == s__state)) && s__hit == 0) || ((s__state <= 4528 && 4464 <= s__state) && s__hit == 0)) || ((s__state <= 4528 && 4464 <= s__state) && blastFlag <= 4)) || (blastFlag <= 4 && 4560 <= s__state)) || ((4352 == s__state && s__s3__tmp__next_state___0 == 4560) && s__hit == 0)) || (((((((((((((!(4385 == s__state) && !(s__state == 4433)) && !(4432 == s__state)) && s__state <= 4512) && !(4400 == s__state)) && blastFlag <= 4) && !(4417 == s__state)) && 4352 <= s__state) && !(4449 == s__state)) && !(s__state == 4448)) && !(4352 == s__state)) && !(4401 == s__state)) && !(s__state == 4416)) && !(4369 == s__state))) || (((3 == s__state || s__state == 4560) && s__s3__tmp__next_state___0 == 4560) && s__hit == 0)) || ((((((((((((!(4385 == s__state) && !(s__state == 4433)) && !(4432 == s__state)) && s__state <= 4512) && !(4400 == s__state)) && blastFlag <= 4) && !(4417 == s__state)) && !(4449 == s__state)) && !(s__state == 4448)) && !(4401 == s__state)) && !(s__state == 4416)) && (3 == s__s3__tmp__next_state___0 || s__s3__tmp__next_state___0 == 4560)) && !(4369 == s__state)) - InvariantResult [Line: 140]: Loop Invariant Derived loop invariant: (((((((((((((!(4385 == s__state) && s__state <= 4480) && !(s__state == 4384)) && !(4400 == s__state)) && blastFlag <= 4) && !(4417 == s__state)) && 4352 <= s__state) && !(4449 == s__state)) && !(s__state == 4448)) && !(4352 == s__state)) && !(s__state == 4368)) && !(4401 == s__state)) && !(s__state == 4416)) && !(4369 == s__state)) && s__hit == 0 - InvariantResult [Line: 97]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 12]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 98]: Loop Invariant Derived loop invariant: ((((((((((((((((!(4385 == s__state) && blastFlag <= 4) && !(s__state == 4433)) && !(4417 == s__state)) && s__state <= 4512) && !(4449 == s__state)) && !(4352 == s__state)) && !(4401 == s__state)) && !(4369 == s__state)) && s__hit == 0) || ((s__state <= 4528 && 4464 <= s__state) && s__hit == 0)) || ((blastFlag <= 4 && (3 == s__state || s__state == 4560)) && (3 == s__s3__tmp__next_state___0 || s__s3__tmp__next_state___0 == 4560))) || ((s__state <= 4528 && 4464 <= s__state) && blastFlag <= 4)) || ((4352 == s__state && s__s3__tmp__next_state___0 == 4560) && s__hit == 0)) || ((!(s__hit == 0) && blastFlag <= 4) && s__state == 4560)) || (((((((((((((!(4385 == s__state) && !(s__state == 4433)) && !(4432 == s__state)) && s__state <= 4512) && !(4400 == s__state)) && blastFlag <= 4) && !(4417 == s__state)) && 4352 <= s__state) && !(4449 == s__state)) && !(s__state == 4448)) && !(4352 == s__state)) && !(4401 == s__state)) && !(s__state == 4416)) && !(4369 == s__state))) || (((3 == s__state || s__state == 4560) && s__s3__tmp__next_state___0 == 4560) && s__hit == 0)) || ((((((((((((!(4385 == s__state) && !(s__state == 4433)) && !(4432 == s__state)) && s__state <= 4512) && !(4400 == s__state)) && blastFlag <= 4) && !(4417 == s__state)) && !(4449 == s__state)) && !(s__state == 4448)) && !(4401 == s__state)) && !(s__state == 4416)) && (3 == s__s3__tmp__next_state___0 || s__s3__tmp__next_state___0 == 4560)) && !(4369 == s__state)) - InvariantResult [Line: 164]: Loop Invariant Derived loop invariant: ((4464 <= s__state && s__state <= 4512) && s__hit == 0) || ((4464 <= s__state && blastFlag <= 4) && s__state <= 4512) - InvariantResult [Line: 122]: Loop Invariant Derived loop invariant: ((((((((((((!(s__state == 4433) && !(4432 == s__state)) && s__state <= 4480) && !(4400 == s__state)) && blastFlag <= 4) && !(4417 == s__state)) && 4352 <= s__state) && !(4449 == s__state)) && !(s__state == 4448)) && !(4352 == s__state)) && !(4401 == s__state)) && !(s__state == 4368)) && !(s__state == 4416)) && !(4369 == s__state) - InvariantResult [Line: 176]: Loop Invariant Derived loop invariant: (((s__state <= 4528 && !(s__state == 4528)) && 4464 <= s__state) && blastFlag <= 4) || (((s__state <= 4528 && !(s__state == 4528)) && 4464 <= s__state) && s__hit == 0) - InvariantResult [Line: 134]: Loop Invariant Derived loop invariant: (((((((((((((!(4385 == s__state) && !(s__state == 4433)) && !(4432 == s__state)) && s__state <= 4480) && !(s__state == 4384)) && !(4400 == s__state)) && blastFlag <= 4) && 4352 <= s__state) && !(4449 == s__state)) && !(s__state == 4448)) && !(4352 == s__state)) && !(s__state == 4368)) && !(4401 == s__state)) && !(4369 == s__state)) && s__hit == 0 - InvariantResult [Line: 188]: Loop Invariant Derived loop invariant: ((((!(s__state == 4528) && 4464 <= s__state) && !(4529 == s__state)) && s__s3__tmp__next_state___0 == 4560) && s__hit == 0) || (((((4560 <= s__state || s__hit == 0) && !(s__state == 4528)) && 4464 <= s__state) && blastFlag <= 4) && !(4529 == s__state)) - InvariantResult [Line: 146]: Loop Invariant Derived loop invariant: ((((((((((((!(4385 == s__state) && !(s__state == 4433)) && !(4432 == s__state)) && s__state <= 4480) && !(s__state == 4384)) && !(4400 == s__state)) && !(4417 == s__state)) && 4352 <= s__state) && !(4352 == s__state)) && !(s__state == 4368)) && !(4401 == s__state)) && !(s__state == 4416)) && !(4369 == s__state)) && s__hit == 0 - InvariantResult [Line: 152]: Loop Invariant Derived loop invariant: ((4464 <= s__state && blastFlag <= 4) && s__state <= 4480) || ((4464 <= s__state && s__state <= 4480) && s__hit == 0) - InvariantResult [Line: 194]: Loop Invariant Derived loop invariant: (((((((!(4400 == s__state) && !(s__state == 4433)) && !(4417 == s__state)) && !(4432 == s__state)) && !(4352 == s__state)) && !(4401 == s__state)) && !(s__state == 4416)) || (((((((!(4400 == s__state) && blastFlag <= 4) && !(s__state == 4433)) && !(4432 == s__state)) && !(4417 == s__state)) && !(4401 == s__state)) && !(s__state == 4416)) && (3 == s__s3__tmp__next_state___0 || s__s3__tmp__next_state___0 == 4560))) || (((((((!(4400 == s__state) && !(s__state == 4433)) && !(4432 == s__state)) && !(4417 == s__state)) && !(4401 == s__state)) && s__s3__tmp__next_state___0 == 4560) && !(s__state == 4416)) && s__hit == 0) - InvariantResult [Line: 116]: Loop Invariant Derived loop invariant: ((((((((((((!(4385 == s__state) && !(s__state == 4433)) && !(4432 == s__state)) && s__state <= 4480) && !(s__state == 4384)) && !(4400 == s__state)) && blastFlag <= 4) && !(4417 == s__state)) && 4352 <= s__state) && !(4449 == s__state)) && !(s__state == 4448)) && !(4352 == s__state)) && !(4401 == s__state)) && !(s__state == 4416) - InvariantResult [Line: 104]: Loop Invariant Derived loop invariant: ((((((((((((((!(4385 == s__state) && !(s__state == 4528)) && !(s__state == 4433)) && !(4432 == s__state)) && !(s__state == 4384)) && !(4400 == s__state)) && blastFlag <= 4) && !(4417 == s__state)) && !(4529 == s__state)) && !(4449 == s__state)) && !(s__state == 4448)) && !(4352 == s__state)) && !(s__state == 4368)) && !(4401 == s__state)) && !(s__state == 4416)) && !(4369 == s__state) - InvariantResult [Line: 170]: Loop Invariant Derived loop invariant: ((4464 <= s__state && s__state <= 4512) && s__hit == 0) || ((4464 <= s__state && blastFlag <= 4) && s__state <= 4512) - InvariantResult [Line: 76]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 128]: Loop Invariant Derived loop invariant: (blastFlag <= 4 && 4400 == s__state) && s__hit == 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 84 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 27.2s, OverallIterations: 22, TraceHistogramMax: 16, AutomataDifference: 3.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1645 SDtfs, 2847 SDslu, 1126 SDs, 0 SdLazy, 3726 SolverSat, 916 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1349 GetRequests, 1288 SyntacticMatches, 1 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 132 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=827occurred in iteration=21, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 22 MinimizatonAttempts, 1181 StatesRemovedByMinimization, 20 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 19 LocationsWithAnnotation, 19 PreInvPairs, 144 NumberOfFragments, 1016 HoareAnnotationTreeSize, 19 FomulaSimplifications, 43975 FormulaSimplificationTreeSizeReduction, 0.2s HoareSimplificationTime, 19 FomulaSimplificationsInter, 4713 FormulaSimplificationTreeSizeReductionInter, 1.7s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 3238 NumberOfCodeBlocks, 3238 NumberOfCodeBlocksAsserted, 25 NumberOfCheckSat, 3838 ConstructedInterpolants, 0 QuantifiedInterpolants, 1499329 SizeOfPredicates, 19 NumberOfNonLiveVariables, 1327 ConjunctsInSsa, 15 ConjunctsInUnsatCore, 28 InterpolantComputations, 20 PerfectInterpolantSequences, 11102/11788 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...