./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/openssl-simplified/s3_clnt_3.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_ec48e897-c6a0-4624-bf9e-f405a21ad45c/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_ec48e897-c6a0-4624-bf9e-f405a21ad45c/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_ec48e897-c6a0-4624-bf9e-f405a21ad45c/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_ec48e897-c6a0-4624-bf9e-f405a21ad45c/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/openssl-simplified/s3_clnt_3.cil-1.c -s /tmp/vcloud-vcloud-master/worker/run_dir_ec48e897-c6a0-4624-bf9e-f405a21ad45c/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_ec48e897-c6a0-4624-bf9e-f405a21ad45c/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 7e741634054dd50a048146b108e465f8b335e64a ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 10:30:49,367 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-09 10:30:49,369 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-09 10:30:49,399 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-09 10:30:49,399 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-09 10:30:49,400 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-09 10:30:49,401 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-09 10:30:49,403 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-09 10:30:49,404 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-09 10:30:49,405 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-09 10:30:49,406 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-09 10:30:49,407 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-09 10:30:49,407 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-09 10:30:49,408 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-09 10:30:49,409 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-09 10:30:49,410 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-09 10:30:49,411 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-09 10:30:49,411 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-09 10:30:49,413 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-09 10:30:49,415 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-09 10:30:49,416 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-09 10:30:49,417 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-09 10:30:49,418 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-09 10:30:49,419 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-09 10:30:49,421 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-09 10:30:49,422 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-09 10:30:49,422 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-09 10:30:49,423 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-09 10:30:49,423 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-09 10:30:49,424 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-09 10:30:49,424 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-09 10:30:49,425 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-09 10:30:49,426 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-09 10:30:49,426 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-09 10:30:49,427 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-09 10:30:49,427 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-09 10:30:49,428 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-09 10:30:49,428 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-09 10:30:49,428 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-09 10:30:49,428 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-09 10:30:49,429 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-09 10:30:49,430 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_ec48e897-c6a0-4624-bf9e-f405a21ad45c/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-12-09 10:30:49,446 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-09 10:30:49,446 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-09 10:30:49,447 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-09 10:30:49,447 INFO L138 SettingsManager]: * User list type=DISABLED [2020-12-09 10:30:49,447 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-12-09 10:30:49,447 INFO L138 SettingsManager]: * Explicit value domain=true [2020-12-09 10:30:49,447 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-12-09 10:30:49,448 INFO L138 SettingsManager]: * Octagon Domain=false [2020-12-09 10:30:49,448 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-12-09 10:30:49,448 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-12-09 10:30:49,448 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-12-09 10:30:49,448 INFO L138 SettingsManager]: * Interval Domain=false [2020-12-09 10:30:49,448 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-12-09 10:30:49,448 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-12-09 10:30:49,448 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-12-09 10:30:49,449 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-09 10:30:49,449 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-09 10:30:49,449 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-09 10:30:49,449 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-09 10:30:49,449 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-09 10:30:49,449 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-09 10:30:49,450 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-09 10:30:49,450 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-09 10:30:49,450 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-12-09 10:30:49,450 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-09 10:30:49,450 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-09 10:30:49,450 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-09 10:30:49,450 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-09 10:30:49,450 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-09 10:30:49,450 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-09 10:30:49,451 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 10:30:49,451 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-09 10:30:49,451 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-09 10:30:49,451 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-09 10:30:49,451 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-12-09 10:30:49,451 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-09 10:30:49,451 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-09 10:30:49,451 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-09 10:30:49,451 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-09 10:30:49,451 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_ec48e897-c6a0-4624-bf9e-f405a21ad45c/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_ec48e897-c6a0-4624-bf9e-f405a21ad45c/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7e741634054dd50a048146b108e465f8b335e64a [2020-12-09 10:30:49,630 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-09 10:30:49,645 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-09 10:30:49,647 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-09 10:30:49,648 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-09 10:30:49,648 INFO L275 PluginConnector]: CDTParser initialized [2020-12-09 10:30:49,649 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_ec48e897-c6a0-4624-bf9e-f405a21ad45c/bin/utaipan/../../sv-benchmarks/c/openssl-simplified/s3_clnt_3.cil-1.c [2020-12-09 10:30:49,696 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ec48e897-c6a0-4624-bf9e-f405a21ad45c/bin/utaipan/data/da2f26816/050c54db41374729a9a1082272e46057/FLAG876577e64 [2020-12-09 10:30:50,081 INFO L306 CDTParser]: Found 1 translation units. [2020-12-09 10:30:50,081 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_ec48e897-c6a0-4624-bf9e-f405a21ad45c/sv-benchmarks/c/openssl-simplified/s3_clnt_3.cil-1.c [2020-12-09 10:30:50,091 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ec48e897-c6a0-4624-bf9e-f405a21ad45c/bin/utaipan/data/da2f26816/050c54db41374729a9a1082272e46057/FLAG876577e64 [2020-12-09 10:30:50,101 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_ec48e897-c6a0-4624-bf9e-f405a21ad45c/bin/utaipan/data/da2f26816/050c54db41374729a9a1082272e46057 [2020-12-09 10:30:50,103 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-09 10:30:50,104 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-09 10:30:50,105 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-09 10:30:50,105 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-09 10:30:50,107 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-09 10:30:50,108 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 10:30:50" (1/1) ... [2020-12-09 10:30:50,109 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e3e7a50 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:30:50, skipping insertion in model container [2020-12-09 10:30:50,109 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 10:30:50" (1/1) ... [2020-12-09 10:30:50,114 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-09 10:30:50,142 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-09 10:30:50,263 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_ec48e897-c6a0-4624-bf9e-f405a21ad45c/sv-benchmarks/c/openssl-simplified/s3_clnt_3.cil-1.c[36410,36423] [2020-12-09 10:30:50,268 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 10:30:50,274 INFO L203 MainTranslator]: Completed pre-run [2020-12-09 10:30:50,307 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_ec48e897-c6a0-4624-bf9e-f405a21ad45c/sv-benchmarks/c/openssl-simplified/s3_clnt_3.cil-1.c[36410,36423] [2020-12-09 10:30:50,309 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 10:30:50,319 INFO L208 MainTranslator]: Completed translation [2020-12-09 10:30:50,320 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:30:50 WrapperNode [2020-12-09 10:30:50,320 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-09 10:30:50,321 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-09 10:30:50,321 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-09 10:30:50,321 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-09 10:30:50,327 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:30:50" (1/1) ... [2020-12-09 10:30:50,334 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:30:50" (1/1) ... [2020-12-09 10:30:50,357 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-09 10:30:50,358 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-09 10:30:50,358 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-09 10:30:50,358 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-09 10:30:50,365 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:30:50" (1/1) ... [2020-12-09 10:30:50,365 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:30:50" (1/1) ... [2020-12-09 10:30:50,369 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:30:50" (1/1) ... [2020-12-09 10:30:50,370 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:30:50" (1/1) ... [2020-12-09 10:30:50,376 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:30:50" (1/1) ... [2020-12-09 10:30:50,384 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:30:50" (1/1) ... [2020-12-09 10:30:50,387 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:30:50" (1/1) ... [2020-12-09 10:30:50,391 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-09 10:30:50,392 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-09 10:30:50,392 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-09 10:30:50,393 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-09 10:30:50,393 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:30:50" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ec48e897-c6a0-4624-bf9e-f405a21ad45c/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 10:30:50,464 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-09 10:30:50,464 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-09 10:30:50,464 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-09 10:30:50,464 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-09 10:30:50,555 WARN L800 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-12-09 10:30:50,849 INFO L752 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##85: assume !false; [2020-12-09 10:30:50,849 INFO L752 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##84: assume false; [2020-12-09 10:30:51,080 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-09 10:30:51,080 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2020-12-09 10:30:51,082 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 10:30:51 BoogieIcfgContainer [2020-12-09 10:30:51,082 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-09 10:30:51,084 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-09 10:30:51,084 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-09 10:30:51,086 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-09 10:30:51,087 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 10:30:50" (1/3) ... [2020-12-09 10:30:51,087 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@da53729 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 10:30:51, skipping insertion in model container [2020-12-09 10:30:51,087 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:30:50" (2/3) ... [2020-12-09 10:30:51,088 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@da53729 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 10:30:51, skipping insertion in model container [2020-12-09 10:30:51,088 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 10:30:51" (3/3) ... [2020-12-09 10:30:51,089 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_clnt_3.cil-1.c [2020-12-09 10:30:51,098 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-09 10:30:51,101 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-09 10:30:51,108 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-09 10:30:51,125 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-09 10:30:51,125 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-09 10:30:51,125 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-09 10:30:51,125 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-09 10:30:51,126 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-09 10:30:51,126 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-09 10:30:51,126 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-09 10:30:51,126 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-09 10:30:51,137 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states. [2020-12-09 10:30:51,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-12-09 10:30:51,141 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 10:30:51,141 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 10:30:51,142 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 10:30:51,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 10:30:51,146 INFO L82 PathProgramCache]: Analyzing trace with hash -476343940, now seen corresponding path program 1 times [2020-12-09 10:30:51,152 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 10:30:51,152 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [586177903] [2020-12-09 10:30:51,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 10:30:51,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 10:30:51,269 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 10:30:51,270 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [586177903] [2020-12-09 10:30:51,270 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 10:30:51,271 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-09 10:30:51,271 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2114083543] [2020-12-09 10:30:51,274 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 10:30:51,274 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 10:30:51,283 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 10:30:51,283 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 10:30:51,285 INFO L87 Difference]: Start difference. First operand 84 states. Second operand 3 states. [2020-12-09 10:30:51,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 10:30:51,399 INFO L93 Difference]: Finished difference Result 169 states and 293 transitions. [2020-12-09 10:30:51,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 10:30:51,401 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2020-12-09 10:30:51,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 10:30:51,411 INFO L225 Difference]: With dead ends: 169 [2020-12-09 10:30:51,411 INFO L226 Difference]: Without dead ends: 83 [2020-12-09 10:30:51,414 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 10:30:51,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2020-12-09 10:30:51,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 83. [2020-12-09 10:30:51,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 83 states. [2020-12-09 10:30:51,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 120 transitions. [2020-12-09 10:30:51,452 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 120 transitions. Word has length 19 [2020-12-09 10:30:51,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 10:30:51,453 INFO L481 AbstractCegarLoop]: Abstraction has 83 states and 120 transitions. [2020-12-09 10:30:51,453 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 10:30:51,453 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 120 transitions. [2020-12-09 10:30:51,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-12-09 10:30:51,454 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 10:30:51,454 INFO L422 BasicCegarLoop]: trace histogram [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 10:30:51,455 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-09 10:30:51,455 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 10:30:51,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 10:30:51,455 INFO L82 PathProgramCache]: Analyzing trace with hash -800377039, now seen corresponding path program 1 times [2020-12-09 10:30:51,456 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 10:30:51,456 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [392294591] [2020-12-09 10:30:51,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 10:30:51,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 10:30:51,503 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 10:30:51,503 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [392294591] [2020-12-09 10:30:51,504 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 10:30:51,504 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-09 10:30:51,504 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1751213212] [2020-12-09 10:30:51,505 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 10:30:51,506 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 10:30:51,506 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 10:30:51,507 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 10:30:51,507 INFO L87 Difference]: Start difference. First operand 83 states and 120 transitions. Second operand 3 states. [2020-12-09 10:30:51,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 10:30:51,604 INFO L93 Difference]: Finished difference Result 178 states and 261 transitions. [2020-12-09 10:30:51,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 10:30:51,605 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 28 [2020-12-09 10:30:51,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 10:30:51,606 INFO L225 Difference]: With dead ends: 178 [2020-12-09 10:30:51,606 INFO L226 Difference]: Without dead ends: 98 [2020-12-09 10:30:51,607 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 10:30:51,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2020-12-09 10:30:51,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 96. [2020-12-09 10:30:51,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 96 states. [2020-12-09 10:30:51,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 136 transitions. [2020-12-09 10:30:51,614 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 136 transitions. Word has length 28 [2020-12-09 10:30:51,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 10:30:51,619 INFO L481 AbstractCegarLoop]: Abstraction has 96 states and 136 transitions. [2020-12-09 10:30:51,619 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 10:30:51,619 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 136 transitions. [2020-12-09 10:30:51,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2020-12-09 10:30:51,620 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 10:30:51,620 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 10:30:51,620 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-09 10:30:51,620 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 10:30:51,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 10:30:51,621 INFO L82 PathProgramCache]: Analyzing trace with hash -661653427, now seen corresponding path program 1 times [2020-12-09 10:30:51,621 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 10:30:51,621 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1729824309] [2020-12-09 10:30:51,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 10:30:51,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 10:30:51,661 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-12-09 10:30:51,661 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1729824309] [2020-12-09 10:30:51,661 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 10:30:51,661 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-09 10:30:51,661 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1107429234] [2020-12-09 10:30:51,662 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 10:30:51,662 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 10:30:51,662 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 10:30:51,663 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 10:30:51,663 INFO L87 Difference]: Start difference. First operand 96 states and 136 transitions. Second operand 3 states. [2020-12-09 10:30:51,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 10:30:51,750 INFO L93 Difference]: Finished difference Result 206 states and 297 transitions. [2020-12-09 10:30:51,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 10:30:51,751 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 39 [2020-12-09 10:30:51,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 10:30:51,752 INFO L225 Difference]: With dead ends: 206 [2020-12-09 10:30:51,753 INFO L226 Difference]: Without dead ends: 113 [2020-12-09 10:30:51,753 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 10:30:51,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2020-12-09 10:30:51,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 111. [2020-12-09 10:30:51,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 111 states. [2020-12-09 10:30:51,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 154 transitions. [2020-12-09 10:30:51,763 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 154 transitions. Word has length 39 [2020-12-09 10:30:51,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 10:30:51,764 INFO L481 AbstractCegarLoop]: Abstraction has 111 states and 154 transitions. [2020-12-09 10:30:51,764 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 10:30:51,764 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 154 transitions. [2020-12-09 10:30:51,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-12-09 10:30:51,765 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 10:30:51,766 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 10:30:51,766 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-09 10:30:51,766 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 10:30:51,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 10:30:51,767 INFO L82 PathProgramCache]: Analyzing trace with hash -1098147356, now seen corresponding path program 1 times [2020-12-09 10:30:51,767 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 10:30:51,767 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1814495820] [2020-12-09 10:30:51,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 10:30:51,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 10:30:51,834 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-12-09 10:30:51,834 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1814495820] [2020-12-09 10:30:51,834 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [170336780] [2020-12-09 10:30:51,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ec48e897-c6a0-4624-bf9e-f405a21ad45c/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 10:30:51,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 10:30:51,882 INFO L263 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 3 conjunts are in the unsatisfiable core [2020-12-09 10:30:51,886 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 10:30:51,973 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2020-12-09 10:30:51,973 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 10:30:52,045 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2020-12-09 10:30:52,045 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2020-12-09 10:30:52,045 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [4] total 9 [2020-12-09 10:30:52,045 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1107397172] [2020-12-09 10:30:52,046 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-09 10:30:52,046 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 10:30:52,046 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-09 10:30:52,046 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-12-09 10:30:52,046 INFO L87 Difference]: Start difference. First operand 111 states and 154 transitions. Second operand 6 states. [2020-12-09 10:30:52,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 10:30:52,266 INFO L93 Difference]: Finished difference Result 312 states and 467 transitions. [2020-12-09 10:30:52,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-09 10:30:52,267 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 52 [2020-12-09 10:30:52,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 10:30:52,268 INFO L225 Difference]: With dead ends: 312 [2020-12-09 10:30:52,268 INFO L226 Difference]: Without dead ends: 203 [2020-12-09 10:30:52,269 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-12-09 10:30:52,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states. [2020-12-09 10:30:52,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 186. [2020-12-09 10:30:52,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 186 states. [2020-12-09 10:30:52,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 255 transitions. [2020-12-09 10:30:52,279 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 255 transitions. Word has length 52 [2020-12-09 10:30:52,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 10:30:52,279 INFO L481 AbstractCegarLoop]: Abstraction has 186 states and 255 transitions. [2020-12-09 10:30:52,279 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-09 10:30:52,280 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 255 transitions. [2020-12-09 10:30:52,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-12-09 10:30:52,281 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 10:30:52,281 INFO L422 BasicCegarLoop]: trace histogram [5, 4, 4, 4, 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, 1, 1, 1, 1] [2020-12-09 10:30:52,482 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-09 10:30:52,482 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 10:30:52,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 10:30:52,483 INFO L82 PathProgramCache]: Analyzing trace with hash 2090182021, now seen corresponding path program 1 times [2020-12-09 10:30:52,483 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 10:30:52,483 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [356346684] [2020-12-09 10:30:52,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 10:30:52,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 10:30:52,524 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2020-12-09 10:30:52,524 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [356346684] [2020-12-09 10:30:52,524 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 10:30:52,524 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-09 10:30:52,524 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1766095759] [2020-12-09 10:30:52,525 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 10:30:52,525 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 10:30:52,525 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 10:30:52,525 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 10:30:52,525 INFO L87 Difference]: Start difference. First operand 186 states and 255 transitions. Second operand 3 states. [2020-12-09 10:30:52,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 10:30:52,612 INFO L93 Difference]: Finished difference Result 390 states and 543 transitions. [2020-12-09 10:30:52,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 10:30:52,612 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 67 [2020-12-09 10:30:52,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 10:30:52,613 INFO L225 Difference]: With dead ends: 390 [2020-12-09 10:30:52,614 INFO L226 Difference]: Without dead ends: 207 [2020-12-09 10:30:52,614 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 10:30:52,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207 states. [2020-12-09 10:30:52,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207 to 205. [2020-12-09 10:30:52,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 205 states. [2020-12-09 10:30:52,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 277 transitions. [2020-12-09 10:30:52,623 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 277 transitions. Word has length 67 [2020-12-09 10:30:52,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 10:30:52,623 INFO L481 AbstractCegarLoop]: Abstraction has 205 states and 277 transitions. [2020-12-09 10:30:52,623 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 10:30:52,623 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 277 transitions. [2020-12-09 10:30:52,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2020-12-09 10:30:52,626 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 10:30:52,626 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 10:30:52,626 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-09 10:30:52,626 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 10:30:52,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 10:30:52,626 INFO L82 PathProgramCache]: Analyzing trace with hash -1583289563, now seen corresponding path program 1 times [2020-12-09 10:30:52,627 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 10:30:52,627 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [92377155] [2020-12-09 10:30:52,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 10:30:52,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 10:30:52,699 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 10:30:52,699 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [92377155] [2020-12-09 10:30:52,700 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [194773616] [2020-12-09 10:30:52,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ec48e897-c6a0-4624-bf9e-f405a21ad45c/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 10:30:52,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 10:30:52,755 INFO L263 TraceCheckSpWp]: Trace formula consists of 215 conjuncts, 6 conjunts are in the unsatisfiable core [2020-12-09 10:30:52,757 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 10:30:52,817 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 10:30:52,817 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 10:30:52,859 INFO L398 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 1] term [2020-12-09 10:30:52,860 INFO L639 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-12-09 10:30:52,885 INFO L398 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 1] term [2020-12-09 10:30:52,885 INFO L639 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-12-09 10:30:52,917 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2020-12-09 10:30:52,917 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [329658175] [2020-12-09 10:30:52,935 INFO L159 IcfgInterpreter]: Started Sifa with 36 locations of interest [2020-12-09 10:30:52,935 INFO L166 IcfgInterpreter]: Building call graph [2020-12-09 10:30:52,939 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2020-12-09 10:30:52,945 INFO L176 IcfgInterpreter]: Starting interpretation [2020-12-09 10:30:52,945 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2020-12-09 10:30:54,146 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 10:30:54,148 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2020-12-09 10:30:54,148 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 3] total 7 [2020-12-09 10:30:54,149 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [26578848] [2020-12-09 10:30:54,149 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-12-09 10:30:54,149 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 10:30:54,149 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-12-09 10:30:54,150 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2020-12-09 10:30:54,150 INFO L87 Difference]: Start difference. First operand 205 states and 277 transitions. Second operand 8 states. [2020-12-09 10:30:54,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 10:30:54,198 INFO L93 Difference]: Finished difference Result 628 states and 851 transitions. [2020-12-09 10:30:54,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-09 10:30:54,198 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 85 [2020-12-09 10:30:54,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 10:30:54,201 INFO L225 Difference]: With dead ends: 628 [2020-12-09 10:30:54,202 INFO L226 Difference]: Without dead ends: 626 [2020-12-09 10:30:54,202 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 165 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2020-12-09 10:30:54,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 626 states. [2020-12-09 10:30:54,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 626 to 528. [2020-12-09 10:30:54,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 528 states. [2020-12-09 10:30:54,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 528 states to 528 states and 733 transitions. [2020-12-09 10:30:54,227 INFO L78 Accepts]: Start accepts. Automaton has 528 states and 733 transitions. Word has length 85 [2020-12-09 10:30:54,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 10:30:54,228 INFO L481 AbstractCegarLoop]: Abstraction has 528 states and 733 transitions. [2020-12-09 10:30:54,228 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-12-09 10:30:54,228 INFO L276 IsEmpty]: Start isEmpty. Operand 528 states and 733 transitions. [2020-12-09 10:30:54,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2020-12-09 10:30:54,232 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 10:30:54,233 INFO L422 BasicCegarLoop]: trace histogram [9, 8, 8, 8, 8, 8, 8, 8, 7, 7, 5, 5, 3, 3, 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] [2020-12-09 10:30:54,433 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-09 10:30:54,434 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 10:30:54,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 10:30:54,434 INFO L82 PathProgramCache]: Analyzing trace with hash 1104548873, now seen corresponding path program 1 times [2020-12-09 10:30:54,434 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 10:30:54,435 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1865337251] [2020-12-09 10:30:54,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 10:30:54,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 10:30:54,514 INFO L134 CoverageAnalysis]: Checked inductivity of 343 backedges. 232 proven. 0 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2020-12-09 10:30:54,515 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1865337251] [2020-12-09 10:30:54,515 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 10:30:54,515 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-09 10:30:54,515 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1303075550] [2020-12-09 10:30:54,516 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 10:30:54,516 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 10:30:54,516 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 10:30:54,516 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 10:30:54,516 INFO L87 Difference]: Start difference. First operand 528 states and 733 transitions. Second operand 3 states. [2020-12-09 10:30:54,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 10:30:54,668 INFO L93 Difference]: Finished difference Result 1184 states and 1698 transitions. [2020-12-09 10:30:54,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 10:30:54,668 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 132 [2020-12-09 10:30:54,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 10:30:54,673 INFO L225 Difference]: With dead ends: 1184 [2020-12-09 10:30:54,673 INFO L226 Difference]: Without dead ends: 656 [2020-12-09 10:30:54,674 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 10:30:54,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 656 states. [2020-12-09 10:30:54,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 656 to 591. [2020-12-09 10:30:54,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 591 states. [2020-12-09 10:30:54,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 591 states to 591 states and 817 transitions. [2020-12-09 10:30:54,693 INFO L78 Accepts]: Start accepts. Automaton has 591 states and 817 transitions. Word has length 132 [2020-12-09 10:30:54,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 10:30:54,694 INFO L481 AbstractCegarLoop]: Abstraction has 591 states and 817 transitions. [2020-12-09 10:30:54,694 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 10:30:54,694 INFO L276 IsEmpty]: Start isEmpty. Operand 591 states and 817 transitions. [2020-12-09 10:30:54,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2020-12-09 10:30:54,696 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 10:30:54,696 INFO L422 BasicCegarLoop]: trace histogram [11, 10, 10, 9, 9, 9, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 10:30:54,697 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2020-12-09 10:30:54,697 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 10:30:54,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 10:30:54,697 INFO L82 PathProgramCache]: Analyzing trace with hash -1675253606, now seen corresponding path program 2 times [2020-12-09 10:30:54,697 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 10:30:54,698 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1570625908] [2020-12-09 10:30:54,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 10:30:54,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 10:30:54,755 INFO L134 CoverageAnalysis]: Checked inductivity of 462 backedges. 282 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2020-12-09 10:30:54,755 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1570625908] [2020-12-09 10:30:54,755 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 10:30:54,755 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-09 10:30:54,755 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [152259793] [2020-12-09 10:30:54,756 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 10:30:54,756 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 10:30:54,756 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 10:30:54,757 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 10:30:54,757 INFO L87 Difference]: Start difference. First operand 591 states and 817 transitions. Second operand 3 states. [2020-12-09 10:30:54,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 10:30:54,913 INFO L93 Difference]: Finished difference Result 1372 states and 1976 transitions. [2020-12-09 10:30:54,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 10:30:54,913 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 152 [2020-12-09 10:30:54,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 10:30:54,916 INFO L225 Difference]: With dead ends: 1372 [2020-12-09 10:30:54,916 INFO L226 Difference]: Without dead ends: 733 [2020-12-09 10:30:54,917 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 10:30:54,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 733 states. [2020-12-09 10:30:54,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 733 to 705. [2020-12-09 10:30:54,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 705 states. [2020-12-09 10:30:54,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 705 states to 705 states and 961 transitions. [2020-12-09 10:30:54,932 INFO L78 Accepts]: Start accepts. Automaton has 705 states and 961 transitions. Word has length 152 [2020-12-09 10:30:54,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 10:30:54,933 INFO L481 AbstractCegarLoop]: Abstraction has 705 states and 961 transitions. [2020-12-09 10:30:54,933 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 10:30:54,933 INFO L276 IsEmpty]: Start isEmpty. Operand 705 states and 961 transitions. [2020-12-09 10:30:54,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2020-12-09 10:30:54,934 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 10:30:54,935 INFO L422 BasicCegarLoop]: trace histogram [12, 11, 11, 10, 10, 10, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 10:30:54,935 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2020-12-09 10:30:54,935 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 10:30:54,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 10:30:54,936 INFO L82 PathProgramCache]: Analyzing trace with hash 1730785581, now seen corresponding path program 1 times [2020-12-09 10:30:54,936 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 10:30:54,936 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1706212583] [2020-12-09 10:30:54,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 10:30:54,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 10:30:54,987 INFO L134 CoverageAnalysis]: Checked inductivity of 583 backedges. 353 proven. 0 refuted. 0 times theorem prover too weak. 230 trivial. 0 not checked. [2020-12-09 10:30:54,987 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1706212583] [2020-12-09 10:30:54,988 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 10:30:54,988 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-09 10:30:54,988 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [989578653] [2020-12-09 10:30:54,988 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 10:30:54,989 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 10:30:54,989 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 10:30:54,989 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 10:30:54,989 INFO L87 Difference]: Start difference. First operand 705 states and 961 transitions. Second operand 3 states. [2020-12-09 10:30:55,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 10:30:55,102 INFO L93 Difference]: Finished difference Result 1544 states and 2124 transitions. [2020-12-09 10:30:55,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 10:30:55,103 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 172 [2020-12-09 10:30:55,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 10:30:55,106 INFO L225 Difference]: With dead ends: 1544 [2020-12-09 10:30:55,106 INFO L226 Difference]: Without dead ends: 797 [2020-12-09 10:30:55,107 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 10:30:55,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 797 states. [2020-12-09 10:30:55,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 797 to 774. [2020-12-09 10:30:55,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 774 states. [2020-12-09 10:30:55,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 774 states to 774 states and 1042 transitions. [2020-12-09 10:30:55,122 INFO L78 Accepts]: Start accepts. Automaton has 774 states and 1042 transitions. Word has length 172 [2020-12-09 10:30:55,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 10:30:55,122 INFO L481 AbstractCegarLoop]: Abstraction has 774 states and 1042 transitions. [2020-12-09 10:30:55,122 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 10:30:55,122 INFO L276 IsEmpty]: Start isEmpty. Operand 774 states and 1042 transitions. [2020-12-09 10:30:55,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2020-12-09 10:30:55,124 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 10:30:55,124 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 10:30:55,124 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2020-12-09 10:30:55,124 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 10:30:55,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 10:30:55,124 INFO L82 PathProgramCache]: Analyzing trace with hash -487636600, now seen corresponding path program 1 times [2020-12-09 10:30:55,125 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 10:30:55,125 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [16226908] [2020-12-09 10:30:55,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 10:30:55,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 10:30:55,177 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 10:30:55,177 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [16226908] [2020-12-09 10:30:55,177 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 10:30:55,177 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-09 10:30:55,178 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [428191471] [2020-12-09 10:30:55,178 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 10:30:55,178 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 10:30:55,178 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 10:30:55,178 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 10:30:55,178 INFO L87 Difference]: Start difference. First operand 774 states and 1042 transitions. Second operand 3 states. [2020-12-09 10:30:55,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 10:30:55,296 INFO L93 Difference]: Finished difference Result 1682 states and 2286 transitions. [2020-12-09 10:30:55,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 10:30:55,296 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 193 [2020-12-09 10:30:55,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 10:30:55,300 INFO L225 Difference]: With dead ends: 1682 [2020-12-09 10:30:55,300 INFO L226 Difference]: Without dead ends: 884 [2020-12-09 10:30:55,301 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 10:30:55,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 884 states. [2020-12-09 10:30:55,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 884 to 861. [2020-12-09 10:30:55,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 861 states. [2020-12-09 10:30:55,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 861 states to 861 states and 1159 transitions. [2020-12-09 10:30:55,318 INFO L78 Accepts]: Start accepts. Automaton has 861 states and 1159 transitions. Word has length 193 [2020-12-09 10:30:55,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 10:30:55,319 INFO L481 AbstractCegarLoop]: Abstraction has 861 states and 1159 transitions. [2020-12-09 10:30:55,319 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 10:30:55,319 INFO L276 IsEmpty]: Start isEmpty. Operand 861 states and 1159 transitions. [2020-12-09 10:30:55,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2020-12-09 10:30:55,321 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 10:30:55,321 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 10:30:55,321 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2020-12-09 10:30:55,321 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 10:30:55,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 10:30:55,321 INFO L82 PathProgramCache]: Analyzing trace with hash 1781775521, now seen corresponding path program 1 times [2020-12-09 10:30:55,322 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 10:30:55,322 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [300203989] [2020-12-09 10:30:55,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 10:30:55,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 10:30:55,462 INFO L134 CoverageAnalysis]: Checked inductivity of 874 backedges. 537 proven. 0 refuted. 0 times theorem prover too weak. 337 trivial. 0 not checked. [2020-12-09 10:30:55,462 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [300203989] [2020-12-09 10:30:55,462 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 10:30:55,462 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-09 10:30:55,462 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [214078967] [2020-12-09 10:30:55,463 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 10:30:55,463 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 10:30:55,463 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 10:30:55,463 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 10:30:55,463 INFO L87 Difference]: Start difference. First operand 861 states and 1159 transitions. Second operand 3 states. [2020-12-09 10:30:55,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 10:30:55,486 INFO L93 Difference]: Finished difference Result 1409 states and 1902 transitions. [2020-12-09 10:30:55,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 10:30:55,487 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 220 [2020-12-09 10:30:55,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 10:30:55,491 INFO L225 Difference]: With dead ends: 1409 [2020-12-09 10:30:55,491 INFO L226 Difference]: Without dead ends: 861 [2020-12-09 10:30:55,492 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 10:30:55,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 861 states. [2020-12-09 10:30:55,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 861 to 861. [2020-12-09 10:30:55,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 861 states. [2020-12-09 10:30:55,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 861 states to 861 states and 1157 transitions. [2020-12-09 10:30:55,512 INFO L78 Accepts]: Start accepts. Automaton has 861 states and 1157 transitions. Word has length 220 [2020-12-09 10:30:55,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 10:30:55,512 INFO L481 AbstractCegarLoop]: Abstraction has 861 states and 1157 transitions. [2020-12-09 10:30:55,512 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 10:30:55,512 INFO L276 IsEmpty]: Start isEmpty. Operand 861 states and 1157 transitions. [2020-12-09 10:30:55,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2020-12-09 10:30:55,515 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 10:30:55,515 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, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 10:30:55,515 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2020-12-09 10:30:55,515 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 10:30:55,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 10:30:55,516 INFO L82 PathProgramCache]: Analyzing trace with hash 1375907381, now seen corresponding path program 1 times [2020-12-09 10:30:55,516 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 10:30:55,516 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [626568923] [2020-12-09 10:30:55,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 10:30:55,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 10:30:55,568 INFO L134 CoverageAnalysis]: Checked inductivity of 875 backedges. 492 proven. 0 refuted. 0 times theorem prover too weak. 383 trivial. 0 not checked. [2020-12-09 10:30:55,569 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [626568923] [2020-12-09 10:30:55,569 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 10:30:55,569 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-09 10:30:55,569 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2100554800] [2020-12-09 10:30:55,569 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 10:30:55,569 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 10:30:55,570 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 10:30:55,570 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 10:30:55,570 INFO L87 Difference]: Start difference. First operand 861 states and 1157 transitions. Second operand 3 states. [2020-12-09 10:30:55,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 10:30:55,720 INFO L93 Difference]: Finished difference Result 1970 states and 2732 transitions. [2020-12-09 10:30:55,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 10:30:55,721 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 221 [2020-12-09 10:30:55,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 10:30:55,725 INFO L225 Difference]: With dead ends: 1970 [2020-12-09 10:30:55,726 INFO L226 Difference]: Without dead ends: 1097 [2020-12-09 10:30:55,727 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 10:30:55,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1097 states. [2020-12-09 10:30:55,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1097 to 1059. [2020-12-09 10:30:55,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1059 states. [2020-12-09 10:30:55,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1059 states to 1059 states and 1475 transitions. [2020-12-09 10:30:55,755 INFO L78 Accepts]: Start accepts. Automaton has 1059 states and 1475 transitions. Word has length 221 [2020-12-09 10:30:55,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 10:30:55,756 INFO L481 AbstractCegarLoop]: Abstraction has 1059 states and 1475 transitions. [2020-12-09 10:30:55,756 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 10:30:55,756 INFO L276 IsEmpty]: Start isEmpty. Operand 1059 states and 1475 transitions. [2020-12-09 10:30:55,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2020-12-09 10:30:55,759 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 10:30:55,759 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, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 10:30:55,759 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2020-12-09 10:30:55,760 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 10:30:55,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 10:30:55,760 INFO L82 PathProgramCache]: Analyzing trace with hash -1692393207, now seen corresponding path program 1 times [2020-12-09 10:30:55,760 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 10:30:55,760 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [295170590] [2020-12-09 10:30:55,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 10:30:55,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 10:30:55,830 INFO L134 CoverageAnalysis]: Checked inductivity of 1055 backedges. 561 proven. 0 refuted. 0 times theorem prover too weak. 494 trivial. 0 not checked. [2020-12-09 10:30:55,830 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [295170590] [2020-12-09 10:30:55,830 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 10:30:55,831 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-09 10:30:55,831 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1123174767] [2020-12-09 10:30:55,831 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 10:30:55,831 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 10:30:55,831 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 10:30:55,832 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 10:30:55,832 INFO L87 Difference]: Start difference. First operand 1059 states and 1475 transitions. Second operand 3 states. [2020-12-09 10:30:55,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 10:30:55,964 INFO L93 Difference]: Finished difference Result 2138 states and 2972 transitions. [2020-12-09 10:30:55,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 10:30:55,965 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 254 [2020-12-09 10:30:55,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 10:30:55,969 INFO L225 Difference]: With dead ends: 2138 [2020-12-09 10:30:55,970 INFO L226 Difference]: Without dead ends: 1073 [2020-12-09 10:30:55,971 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 10:30:55,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1073 states. [2020-12-09 10:30:55,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1073 to 1050. [2020-12-09 10:30:55,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1050 states. [2020-12-09 10:30:55,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1050 states to 1050 states and 1448 transitions. [2020-12-09 10:30:55,994 INFO L78 Accepts]: Start accepts. Automaton has 1050 states and 1448 transitions. Word has length 254 [2020-12-09 10:30:55,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 10:30:55,994 INFO L481 AbstractCegarLoop]: Abstraction has 1050 states and 1448 transitions. [2020-12-09 10:30:55,994 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 10:30:55,994 INFO L276 IsEmpty]: Start isEmpty. Operand 1050 states and 1448 transitions. [2020-12-09 10:30:55,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 268 [2020-12-09 10:30:55,997 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 10:30:55,997 INFO L422 BasicCegarLoop]: trace histogram [14, 13, 13, 13, 13, 13, 13, 13, 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, 1, 1, 1, 1, 1, 1, 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 10:30:55,998 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2020-12-09 10:30:55,998 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 10:30:55,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 10:30:55,998 INFO L82 PathProgramCache]: Analyzing trace with hash -694604500, now seen corresponding path program 1 times [2020-12-09 10:30:55,998 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 10:30:55,998 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1926448498] [2020-12-09 10:30:55,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 10:30:56,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 10:30:56,120 INFO L134 CoverageAnalysis]: Checked inductivity of 1080 backedges. 670 proven. 77 refuted. 0 times theorem prover too weak. 333 trivial. 0 not checked. [2020-12-09 10:30:56,120 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1926448498] [2020-12-09 10:30:56,120 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [966264057] [2020-12-09 10:30:56,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ec48e897-c6a0-4624-bf9e-f405a21ad45c/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 10:30:56,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 10:30:56,208 INFO L263 TraceCheckSpWp]: Trace formula consists of 486 conjuncts, 4 conjunts are in the unsatisfiable core [2020-12-09 10:30:56,214 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 10:30:56,427 INFO L134 CoverageAnalysis]: Checked inductivity of 1080 backedges. 592 proven. 155 refuted. 0 times theorem prover too weak. 333 trivial. 0 not checked. [2020-12-09 10:30:56,427 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 10:30:56,607 INFO L134 CoverageAnalysis]: Checked inductivity of 1080 backedges. 515 proven. 0 refuted. 0 times theorem prover too weak. 565 trivial. 0 not checked. [2020-12-09 10:30:56,607 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2020-12-09 10:30:56,607 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5, 5] total 8 [2020-12-09 10:30:56,607 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1250260337] [2020-12-09 10:30:56,608 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 10:30:56,608 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 10:30:56,608 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 10:30:56,608 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-12-09 10:30:56,608 INFO L87 Difference]: Start difference. First operand 1050 states and 1448 transitions. Second operand 3 states. [2020-12-09 10:30:56,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 10:30:56,719 INFO L93 Difference]: Finished difference Result 2129 states and 2927 transitions. [2020-12-09 10:30:56,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 10:30:56,719 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 267 [2020-12-09 10:30:56,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 10:30:56,724 INFO L225 Difference]: With dead ends: 2129 [2020-12-09 10:30:56,724 INFO L226 Difference]: Without dead ends: 1082 [2020-12-09 10:30:56,725 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 537 GetRequests, 531 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-12-09 10:30:56,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1082 states. [2020-12-09 10:30:56,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1082 to 1050. [2020-12-09 10:30:56,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1050 states. [2020-12-09 10:30:56,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1050 states to 1050 states and 1427 transitions. [2020-12-09 10:30:56,745 INFO L78 Accepts]: Start accepts. Automaton has 1050 states and 1427 transitions. Word has length 267 [2020-12-09 10:30:56,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 10:30:56,746 INFO L481 AbstractCegarLoop]: Abstraction has 1050 states and 1427 transitions. [2020-12-09 10:30:56,746 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 10:30:56,746 INFO L276 IsEmpty]: Start isEmpty. Operand 1050 states and 1427 transitions. [2020-12-09 10:30:56,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 279 [2020-12-09 10:30:56,749 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 10:30:56,749 INFO L422 BasicCegarLoop]: trace histogram [15, 14, 14, 14, 14, 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, 1, 1, 1, 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 10:30:56,949 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-09 10:30:56,950 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 10:30:56,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 10:30:56,950 INFO L82 PathProgramCache]: Analyzing trace with hash 294452850, now seen corresponding path program 2 times [2020-12-09 10:30:56,950 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 10:30:56,950 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [346615974] [2020-12-09 10:30:56,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 10:30:56,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 10:30:57,084 INFO L134 CoverageAnalysis]: Checked inductivity of 1201 backedges. 772 proven. 63 refuted. 0 times theorem prover too weak. 366 trivial. 0 not checked. [2020-12-09 10:30:57,085 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [346615974] [2020-12-09 10:30:57,085 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1187643588] [2020-12-09 10:30:57,085 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ec48e897-c6a0-4624-bf9e-f405a21ad45c/bin/utaipan/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-09 10:30:57,153 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2020-12-09 10:30:57,153 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-09 10:30:57,154 INFO L263 TraceCheckSpWp]: Trace formula consists of 262 conjuncts, 5 conjunts are in the unsatisfiable core [2020-12-09 10:30:57,160 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 10:30:57,407 INFO L134 CoverageAnalysis]: Checked inductivity of 1201 backedges. 603 proven. 0 refuted. 0 times theorem prover too weak. 598 trivial. 0 not checked. [2020-12-09 10:30:57,407 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 10:30:57,572 INFO L134 CoverageAnalysis]: Checked inductivity of 1201 backedges. 642 proven. 20 refuted. 0 times theorem prover too weak. 539 trivial. 0 not checked. [2020-12-09 10:30:57,572 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2020-12-09 10:30:57,573 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5, 5] total 9 [2020-12-09 10:30:57,573 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [797779342] [2020-12-09 10:30:57,573 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 10:30:57,573 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 10:30:57,573 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 10:30:57,574 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-12-09 10:30:57,574 INFO L87 Difference]: Start difference. First operand 1050 states and 1427 transitions. Second operand 3 states. [2020-12-09 10:30:57,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 10:30:57,690 INFO L93 Difference]: Finished difference Result 2115 states and 2869 transitions. [2020-12-09 10:30:57,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 10:30:57,691 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 278 [2020-12-09 10:30:57,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 10:30:57,695 INFO L225 Difference]: With dead ends: 2115 [2020-12-09 10:30:57,695 INFO L226 Difference]: Without dead ends: 1068 [2020-12-09 10:30:57,696 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 559 GetRequests, 552 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-12-09 10:30:57,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1068 states. [2020-12-09 10:30:57,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1068 to 1050. [2020-12-09 10:30:57,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1050 states. [2020-12-09 10:30:57,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1050 states to 1050 states and 1415 transitions. [2020-12-09 10:30:57,716 INFO L78 Accepts]: Start accepts. Automaton has 1050 states and 1415 transitions. Word has length 278 [2020-12-09 10:30:57,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 10:30:57,716 INFO L481 AbstractCegarLoop]: Abstraction has 1050 states and 1415 transitions. [2020-12-09 10:30:57,716 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 10:30:57,716 INFO L276 IsEmpty]: Start isEmpty. Operand 1050 states and 1415 transitions. [2020-12-09 10:30:57,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 305 [2020-12-09 10:30:57,718 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 10:30:57,718 INFO L422 BasicCegarLoop]: trace histogram [15, 14, 14, 14, 14, 14, 14, 14, 13, 13, 11, 11, 9, 9, 7, 7, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:30:57,918 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-09 10:30:57,919 INFO L429 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 10:30:57,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 10:30:57,920 INFO L82 PathProgramCache]: Analyzing trace with hash 1698859549, now seen corresponding path program 1 times [2020-12-09 10:30:57,920 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 10:30:57,920 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [88758090] [2020-12-09 10:30:57,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 10:30:57,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 10:30:58,151 INFO L134 CoverageAnalysis]: Checked inductivity of 1307 backedges. 748 proven. 226 refuted. 0 times theorem prover too weak. 333 trivial. 0 not checked. [2020-12-09 10:30:58,151 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [88758090] [2020-12-09 10:30:58,151 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [107323392] [2020-12-09 10:30:58,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ec48e897-c6a0-4624-bf9e-f405a21ad45c/bin/utaipan/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-09 10:30:58,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 10:30:58,240 INFO L263 TraceCheckSpWp]: Trace formula consists of 527 conjuncts, 5 conjunts are in the unsatisfiable core [2020-12-09 10:30:58,244 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 10:30:58,496 INFO L134 CoverageAnalysis]: Checked inductivity of 1307 backedges. 731 proven. 11 refuted. 0 times theorem prover too weak. 565 trivial. 0 not checked. [2020-12-09 10:30:58,496 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 10:30:58,699 INFO L134 CoverageAnalysis]: Checked inductivity of 1307 backedges. 731 proven. 11 refuted. 0 times theorem prover too weak. 565 trivial. 0 not checked. [2020-12-09 10:30:58,699 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1988627643] [2020-12-09 10:30:58,702 INFO L159 IcfgInterpreter]: Started Sifa with 68 locations of interest [2020-12-09 10:30:58,702 INFO L166 IcfgInterpreter]: Building call graph [2020-12-09 10:30:58,703 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2020-12-09 10:30:58,703 INFO L176 IcfgInterpreter]: Starting interpretation [2020-12-09 10:30:58,703 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2020-12-09 10:31:04,813 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 10:31:04,813 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2020-12-09 10:31:04,814 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 4, 4] total 10 [2020-12-09 10:31:04,814 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1936922811] [2020-12-09 10:31:04,815 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-12-09 10:31:04,815 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 10:31:04,815 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-12-09 10:31:04,815 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-12-09 10:31:04,815 INFO L87 Difference]: Start difference. First operand 1050 states and 1415 transitions. Second operand 10 states. [2020-12-09 10:31:05,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 10:31:05,625 INFO L93 Difference]: Finished difference Result 3910 states and 5255 transitions. [2020-12-09 10:31:05,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-12-09 10:31:05,625 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 304 [2020-12-09 10:31:05,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 10:31:05,632 INFO L225 Difference]: With dead ends: 3910 [2020-12-09 10:31:05,632 INFO L226 Difference]: Without dead ends: 1766 [2020-12-09 10:31:05,634 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 632 GetRequests, 613 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=134, Invalid=286, Unknown=0, NotChecked=0, Total=420 [2020-12-09 10:31:05,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1766 states. [2020-12-09 10:31:05,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1766 to 1328. [2020-12-09 10:31:05,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1328 states. [2020-12-09 10:31:05,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1328 states to 1328 states and 1713 transitions. [2020-12-09 10:31:05,661 INFO L78 Accepts]: Start accepts. Automaton has 1328 states and 1713 transitions. Word has length 304 [2020-12-09 10:31:05,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 10:31:05,661 INFO L481 AbstractCegarLoop]: Abstraction has 1328 states and 1713 transitions. [2020-12-09 10:31:05,661 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-12-09 10:31:05,661 INFO L276 IsEmpty]: Start isEmpty. Operand 1328 states and 1713 transitions. [2020-12-09 10:31:05,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 376 [2020-12-09 10:31:05,663 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 10:31:05,663 INFO L422 BasicCegarLoop]: trace histogram [17, 16, 16, 16, 16, 16, 16, 16, 15, 15, 14, 13, 11, 11, 9, 9, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 10:31:05,864 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable65 [2020-12-09 10:31:05,865 INFO L429 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 10:31:05,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 10:31:05,867 INFO L82 PathProgramCache]: Analyzing trace with hash -445825780, now seen corresponding path program 1 times [2020-12-09 10:31:05,867 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 10:31:05,868 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1233823492] [2020-12-09 10:31:05,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 10:31:05,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 10:31:06,010 INFO L134 CoverageAnalysis]: Checked inductivity of 1875 backedges. 726 proven. 13 refuted. 0 times theorem prover too weak. 1136 trivial. 0 not checked. [2020-12-09 10:31:06,010 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1233823492] [2020-12-09 10:31:06,011 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1324601913] [2020-12-09 10:31:06,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ec48e897-c6a0-4624-bf9e-f405a21ad45c/bin/utaipan/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-09 10:31:06,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 10:31:06,082 INFO L263 TraceCheckSpWp]: Trace formula consists of 616 conjuncts, 4 conjunts are in the unsatisfiable core [2020-12-09 10:31:06,086 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 10:31:06,318 INFO L134 CoverageAnalysis]: Checked inductivity of 1875 backedges. 726 proven. 13 refuted. 0 times theorem prover too weak. 1136 trivial. 0 not checked. [2020-12-09 10:31:06,319 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 10:31:06,579 INFO L134 CoverageAnalysis]: Checked inductivity of 1875 backedges. 726 proven. 13 refuted. 0 times theorem prover too weak. 1136 trivial. 0 not checked. [2020-12-09 10:31:06,579 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [340190880] [2020-12-09 10:31:06,582 INFO L159 IcfgInterpreter]: Started Sifa with 70 locations of interest [2020-12-09 10:31:06,582 INFO L166 IcfgInterpreter]: Building call graph [2020-12-09 10:31:06,582 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2020-12-09 10:31:06,582 INFO L176 IcfgInterpreter]: Starting interpretation [2020-12-09 10:31:06,582 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2020-12-09 10:31:15,232 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 10:31:15,232 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2020-12-09 10:31:15,233 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 8 [2020-12-09 10:31:15,233 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1722218582] [2020-12-09 10:31:15,233 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-12-09 10:31:15,233 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 10:31:15,234 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-12-09 10:31:15,234 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-12-09 10:31:15,234 INFO L87 Difference]: Start difference. First operand 1328 states and 1713 transitions. Second operand 8 states. [2020-12-09 10:31:15,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 10:31:15,412 INFO L93 Difference]: Finished difference Result 1596 states and 2064 transitions. [2020-12-09 10:31:15,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-12-09 10:31:15,412 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 375 [2020-12-09 10:31:15,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 10:31:15,413 INFO L225 Difference]: With dead ends: 1596 [2020-12-09 10:31:15,413 INFO L226 Difference]: Without dead ends: 0 [2020-12-09 10:31:15,414 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 758 GetRequests, 749 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-12-09 10:31:15,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-09 10:31:15,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-09 10:31:15,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-09 10:31:15,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-09 10:31:15,415 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 375 [2020-12-09 10:31:15,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 10:31:15,415 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-09 10:31:15,415 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-12-09 10:31:15,415 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-09 10:31:15,415 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-09 10:31:15,615 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable170,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-09 10:31:15,617 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-12-09 10:31:16,400 WARN L197 SmtUtils]: Spent 423.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 72 [2020-12-09 10:31:17,042 WARN L197 SmtUtils]: Spent 442.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 75 [2020-12-09 10:31:17,083 INFO L258 CegarLoopResult]: At program point L531(lines 96 597) the Hoare annotation is: (let ((.cse3 (= ULTIMATE.start_ssl3_connect_~s__hit~0 0))) (let ((.cse10 (not .cse3)) (.cse17 (= 3 ULTIMATE.start_ssl3_connect_~s__state~0)) (.cse15 (= ULTIMATE.start_ssl3_connect_~s__state~0 4560))) (let ((.cse5 (< 4432 ULTIMATE.start_ssl3_connect_~s__state~0)) (.cse2 (= ULTIMATE.start_ssl3_connect_~s__state~0 4416)) (.cse11 (= ULTIMATE.start_ssl3_connect_~s__state~0 4384)) (.cse4 (<= ULTIMATE.start_ssl3_connect_~s__state~0 4528)) (.cse14 (or .cse17 .cse15)) (.cse6 (= ULTIMATE.start_ssl3_connect_~blastFlag~0 2)) (.cse7 (or (and .cse10 .cse17) (= 4352 ULTIMATE.start_ssl3_connect_~s__state~0))) (.cse8 (= ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0 4560)) (.cse12 (<= 4432 ULTIMATE.start_ssl3_connect_~s__state~0)) (.cse0 (let ((.cse16 (+ ULTIMATE.start_ssl3_connect_~s__s3__tmp__new_cipher__algorithms~0 256))) (= .cse16 (* (div .cse16 4294967296) 4294967296)))) (.cse1 (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4)) (.cse13 (<= ULTIMATE.start_ssl3_connect_~s__state~0 4448)) (.cse9 (= ULTIMATE.start_ssl3_connect_~s__state~0 4368))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse4 .cse5 .cse6 .cse3) (and .cse0 .cse7 .cse3 .cse8) (and .cse4 .cse0 .cse5 .cse1 .cse3) (and .cse6 .cse9) (and .cse10 .cse6 .cse7 (= 3 ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0)) (and (= ULTIMATE.start_ssl3_connect_~blastFlag~0 1) .cse11) (and .cse6 .cse2 .cse3) (and .cse6 .cse11) (and .cse12 .cse6 .cse13 .cse3) (and .cse0 .cse14 .cse3 .cse8) (and (or (and .cse10 .cse15) (and (= 4400 ULTIMATE.start_ssl3_connect_~s__state~0) .cse3)) .cse6) (and .cse4 (<= 4512 ULTIMATE.start_ssl3_connect_~s__state~0) .cse6) (and .cse6 .cse14 .cse8) (and .cse6 .cse7 .cse8) (and .cse12 .cse0 .cse1 .cse13 .cse3) (and (= ULTIMATE.start_ssl3_connect_~blastFlag~0 0) .cse9))))) [2020-12-09 10:31:17,083 INFO L262 CegarLoopResult]: For program point L168(lines 168 543) no Hoare annotation was computed. [2020-12-09 10:31:17,083 INFO L262 CegarLoopResult]: For program point L135(lines 135 554) no Hoare annotation was computed. [2020-12-09 10:31:17,083 INFO L262 CegarLoopResult]: For program point L102(lines 102 565) no Hoare annotation was computed. [2020-12-09 10:31:17,083 INFO L265 CegarLoopResult]: At program point L598(lines 95 599) the Hoare annotation is: true [2020-12-09 10:31:17,083 INFO L258 CegarLoopResult]: At program point L136(lines 132 555) the Hoare annotation is: (let ((.cse1 (<= ULTIMATE.start_ssl3_connect_~s__state~0 4432)) (.cse2 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 4384))) (.cse3 (= ULTIMATE.start_ssl3_connect_~s__hit~0 0))) (or (and (let ((.cse0 (+ ULTIMATE.start_ssl3_connect_~s__s3__tmp__new_cipher__algorithms~0 256))) (= .cse0 (* (div .cse0 4294967296) 4294967296))) .cse1 (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4) .cse2 .cse3) (and (= ULTIMATE.start_ssl3_connect_~blastFlag~0 2) .cse1 .cse2 .cse3))) [2020-12-09 10:31:17,083 INFO L262 CegarLoopResult]: For program point L567(lines 567 595) no Hoare annotation was computed. [2020-12-09 10:31:17,083 INFO L262 CegarLoopResult]: For program point L171(lines 171 542) no Hoare annotation was computed. [2020-12-09 10:31:17,083 INFO L262 CegarLoopResult]: For program point L138(lines 138 553) no Hoare annotation was computed. [2020-12-09 10:31:17,083 INFO L262 CegarLoopResult]: For program point L105(lines 105 564) no Hoare annotation was computed. [2020-12-09 10:31:17,084 INFO L262 CegarLoopResult]: For program point L568(lines 568 592) no Hoare annotation was computed. [2020-12-09 10:31:17,084 INFO L262 CegarLoopResult]: For program point L337(lines 337 342) no Hoare annotation was computed. [2020-12-09 10:31:17,084 INFO L262 CegarLoopResult]: For program point L304-1(lines 304 318) no Hoare annotation was computed. [2020-12-09 10:31:17,084 INFO L258 CegarLoopResult]: At program point L205(lines 102 565) the Hoare annotation is: (and (or (= ULTIMATE.start_ssl3_connect_~blastFlag~0 0) (= ULTIMATE.start_ssl3_connect_~blastFlag~0 2)) (not (= ULTIMATE.start_ssl3_connect_~s__state~0 4384))) [2020-12-09 10:31:17,084 INFO L258 CegarLoopResult]: At program point L172(lines 168 543) the Hoare annotation is: (let ((.cse0 (< 4432 ULTIMATE.start_ssl3_connect_~s__state~0)) (.cse1 (<= ULTIMATE.start_ssl3_connect_~s__state~0 4512)) (.cse2 (= ULTIMATE.start_ssl3_connect_~s__hit~0 0))) (or (and .cse0 (= ULTIMATE.start_ssl3_connect_~blastFlag~0 2) .cse1 .cse2) (and (let ((.cse3 (+ ULTIMATE.start_ssl3_connect_~s__s3__tmp__new_cipher__algorithms~0 256))) (= .cse3 (* (div .cse3 4294967296) 4294967296))) .cse0 (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4) .cse1 .cse2))) [2020-12-09 10:31:17,084 INFO L262 CegarLoopResult]: For program point L569(lines 569 578) no Hoare annotation was computed. [2020-12-09 10:31:17,084 INFO L262 CegarLoopResult]: For program point L569-2(lines 568 590) no Hoare annotation was computed. [2020-12-09 10:31:17,084 INFO L262 CegarLoopResult]: For program point L174(lines 174 541) no Hoare annotation was computed. [2020-12-09 10:31:17,084 INFO L262 CegarLoopResult]: For program point L141(lines 141 552) no Hoare annotation was computed. [2020-12-09 10:31:17,084 INFO L262 CegarLoopResult]: For program point L108(lines 108 563) no Hoare annotation was computed. [2020-12-09 10:31:17,084 INFO L262 CegarLoopResult]: For program point L571(lines 571 575) no Hoare annotation was computed. [2020-12-09 10:31:17,084 INFO L262 CegarLoopResult]: For program point L439(lines 439 444) no Hoare annotation was computed. [2020-12-09 10:31:17,085 INFO L258 CegarLoopResult]: At program point L142(lines 138 553) the Hoare annotation is: (let ((.cse0 (<= 4432 ULTIMATE.start_ssl3_connect_~s__state~0)) (.cse1 (<= ULTIMATE.start_ssl3_connect_~s__state~0 4448)) (.cse2 (= ULTIMATE.start_ssl3_connect_~s__hit~0 0))) (or (and .cse0 (= ULTIMATE.start_ssl3_connect_~blastFlag~0 2) .cse1 .cse2) (and .cse0 (let ((.cse3 (+ ULTIMATE.start_ssl3_connect_~s__s3__tmp__new_cipher__algorithms~0 256))) (= .cse3 (* (div .cse3 4294967296) 4294967296))) (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4) .cse1 .cse2))) [2020-12-09 10:31:17,085 INFO L262 CegarLoopResult]: For program point L473(lines 473 477) no Hoare annotation was computed. [2020-12-09 10:31:17,085 INFO L262 CegarLoopResult]: For program point L308-2(lines 306 318) no Hoare annotation was computed. [2020-12-09 10:31:17,085 INFO L262 CegarLoopResult]: For program point L408(lines 408 412) no Hoare annotation was computed. [2020-12-09 10:31:17,085 INFO L262 CegarLoopResult]: For program point L177(lines 177 540) no Hoare annotation was computed. [2020-12-09 10:31:17,085 INFO L262 CegarLoopResult]: For program point L144(lines 144 551) no Hoare annotation was computed. [2020-12-09 10:31:17,085 INFO L262 CegarLoopResult]: For program point L210-2(lines 200 530) no Hoare annotation was computed. [2020-12-09 10:31:17,085 INFO L262 CegarLoopResult]: For program point L111(lines 111 562) no Hoare annotation was computed. [2020-12-09 10:31:17,086 INFO L258 CegarLoopResult]: At program point L178(lines 174 541) the Hoare annotation is: (let ((.cse2 (= ULTIMATE.start_ssl3_connect_~blastFlag~0 2)) (.cse0 (<= ULTIMATE.start_ssl3_connect_~s__state~0 4528)) (.cse1 (< 4432 ULTIMATE.start_ssl3_connect_~s__state~0)) (.cse3 (= ULTIMATE.start_ssl3_connect_~s__hit~0 0))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse0 (<= 4512 ULTIMATE.start_ssl3_connect_~s__state~0) .cse2) (and .cse0 (let ((.cse4 (+ ULTIMATE.start_ssl3_connect_~s__s3__tmp__new_cipher__algorithms~0 256))) (= .cse4 (* (div .cse4 4294967296) 4294967296))) .cse1 (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4) .cse3))) [2020-12-09 10:31:17,086 INFO L265 CegarLoopResult]: At program point L609(lines 9 611) the Hoare annotation is: true [2020-12-09 10:31:17,086 INFO L262 CegarLoopResult]: For program point L246(lines 246 251) no Hoare annotation was computed. [2020-12-09 10:31:17,086 INFO L262 CegarLoopResult]: For program point L180(lines 180 539) no Hoare annotation was computed. [2020-12-09 10:31:17,086 INFO L262 CegarLoopResult]: For program point L147(lines 147 550) no Hoare annotation was computed. [2020-12-09 10:31:17,086 INFO L262 CegarLoopResult]: For program point L114(lines 114 561) no Hoare annotation was computed. [2020-12-09 10:31:17,086 INFO L258 CegarLoopResult]: At program point L148(lines 144 551) the Hoare annotation is: (let ((.cse1 (< 4432 ULTIMATE.start_ssl3_connect_~s__state~0)) (.cse2 (<= ULTIMATE.start_ssl3_connect_~s__state~0 4480)) (.cse3 (= ULTIMATE.start_ssl3_connect_~s__hit~0 0))) (or (and (let ((.cse0 (+ ULTIMATE.start_ssl3_connect_~s__s3__tmp__new_cipher__algorithms~0 256))) (= .cse0 (* (div .cse0 4294967296) 4294967296))) .cse1 (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4) .cse2 .cse3) (and .cse1 (= ULTIMATE.start_ssl3_connect_~blastFlag~0 2) .cse2 .cse3))) [2020-12-09 10:31:17,086 INFO L262 CegarLoopResult]: For program point L380(lines 380 384) no Hoare annotation was computed. [2020-12-09 10:31:17,086 INFO L262 CegarLoopResult]: For program point L347(lines 347 351) no Hoare annotation was computed. [2020-12-09 10:31:17,087 INFO L258 CegarLoopResult]: At program point L348(lines 62 610) the Hoare annotation is: false [2020-12-09 10:31:17,087 INFO L262 CegarLoopResult]: For program point L183(lines 183 538) no Hoare annotation was computed. [2020-12-09 10:31:17,087 INFO L262 CegarLoopResult]: For program point L150(lines 150 549) no Hoare annotation was computed. [2020-12-09 10:31:17,087 INFO L262 CegarLoopResult]: For program point L117(lines 117 560) no Hoare annotation was computed. [2020-12-09 10:31:17,087 INFO L258 CegarLoopResult]: At program point L184(lines 180 539) the Hoare annotation is: (let ((.cse3 (= ULTIMATE.start_ssl3_connect_~blastFlag~0 2)) (.cse0 (let ((.cse4 (+ ULTIMATE.start_ssl3_connect_~s__s3__tmp__new_cipher__algorithms~0 256))) (= .cse4 (* (div .cse4 4294967296) 4294967296)))) (.cse1 (< 4432 ULTIMATE.start_ssl3_connect_~s__state~0)) (.cse2 (= ULTIMATE.start_ssl3_connect_~s__hit~0 0))) (or (and .cse0 .cse1 (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4) .cse2) (and .cse1 .cse3 .cse2) (and (<= 4512 ULTIMATE.start_ssl3_connect_~s__state~0) .cse3) (and .cse0 .cse1 (or (= 3 ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0) (= ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0 4560)) .cse2))) [2020-12-09 10:31:17,087 INFO L258 CegarLoopResult]: At program point L118(lines 114 561) the Hoare annotation is: (and (or (= ULTIMATE.start_ssl3_connect_~blastFlag~0 0) (= ULTIMATE.start_ssl3_connect_~blastFlag~0 2)) (< ULTIMATE.start_ssl3_connect_~s__state~0 4384)) [2020-12-09 10:31:17,087 INFO L262 CegarLoopResult]: For program point L449(lines 449 453) no Hoare annotation was computed. [2020-12-09 10:31:17,087 INFO L262 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-12-09 10:31:17,087 INFO L262 CegarLoopResult]: For program point L284-2(lines 200 530) no Hoare annotation was computed. [2020-12-09 10:31:17,087 INFO L262 CegarLoopResult]: For program point L186(lines 186 537) no Hoare annotation was computed. [2020-12-09 10:31:17,087 INFO L262 CegarLoopResult]: For program point L153(lines 153 548) no Hoare annotation was computed. [2020-12-09 10:31:17,087 INFO L262 CegarLoopResult]: For program point L120(lines 120 559) no Hoare annotation was computed. [2020-12-09 10:31:17,088 INFO L262 CegarLoopResult]: For program point L352(lines 352 356) no Hoare annotation was computed. [2020-12-09 10:31:17,088 INFO L262 CegarLoopResult]: For program point L486-1(lines 486 498) no Hoare annotation was computed. [2020-12-09 10:31:17,088 INFO L262 CegarLoopResult]: For program point L420(lines 420 424) no Hoare annotation was computed. [2020-12-09 10:31:17,088 INFO L262 CegarLoopResult]: For program point L222(lines 222 239) no Hoare annotation was computed. [2020-12-09 10:31:17,088 INFO L262 CegarLoopResult]: For program point L189(lines 189 536) no Hoare annotation was computed. [2020-12-09 10:31:17,088 INFO L262 CegarLoopResult]: For program point L156(lines 156 547) no Hoare annotation was computed. [2020-12-09 10:31:17,088 INFO L262 CegarLoopResult]: For program point L222-2(lines 200 530) no Hoare annotation was computed. [2020-12-09 10:31:17,088 INFO L262 CegarLoopResult]: For program point L123(lines 123 558) no Hoare annotation was computed. [2020-12-09 10:31:17,088 INFO L262 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-12-09 10:31:17,088 INFO L258 CegarLoopResult]: At program point L190(lines 186 537) the Hoare annotation is: (let ((.cse2 (= ULTIMATE.start_ssl3_connect_~s__hit~0 0)) (.cse4 (= ULTIMATE.start_ssl3_connect_~blastFlag~0 2)) (.cse1 (= ULTIMATE.start_ssl3_connect_~s__state~0 4560)) (.cse3 (= ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0 4560))) (or (and (let ((.cse0 (+ ULTIMATE.start_ssl3_connect_~s__s3__tmp__new_cipher__algorithms~0 256))) (= .cse0 (* (div .cse0 4294967296) 4294967296))) .cse1 .cse2 .cse3) (and (not .cse2) .cse4 .cse1) (and .cse4 .cse1 .cse3))) [2020-12-09 10:31:17,088 INFO L258 CegarLoopResult]: At program point L124(lines 120 559) the Hoare annotation is: (and (or (= ULTIMATE.start_ssl3_connect_~blastFlag~0 2) (= ULTIMATE.start_ssl3_connect_~blastFlag~0 1)) (<= ULTIMATE.start_ssl3_connect_~s__state~0 4432)) [2020-12-09 10:31:17,088 INFO L262 CegarLoopResult]: For program point L224(lines 224 229) no Hoare annotation was computed. [2020-12-09 10:31:17,088 INFO L262 CegarLoopResult]: For program point L489(lines 489 494) no Hoare annotation was computed. [2020-12-09 10:31:17,089 INFO L258 CegarLoopResult]: At program point L192(lines 192 535) the Hoare annotation is: (let ((.cse3 (= ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0 4560))) (let ((.cse2 (= ULTIMATE.start_ssl3_connect_~s__hit~0 0)) (.cse4 (= ULTIMATE.start_ssl3_connect_~blastFlag~0 2)) (.cse1 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 4384))) (.cse0 (let ((.cse7 (+ ULTIMATE.start_ssl3_connect_~s__s3__tmp__new_cipher__algorithms~0 256))) (= .cse7 (* (div .cse7 4294967296) 4294967296)))) (.cse5 (or (= 3 ULTIMATE.start_ssl3_connect_~s__state~0) (= ULTIMATE.start_ssl3_connect_~s__state~0 4560))) (.cse6 (or (= 3 ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0) .cse3))) (or (<= 4432 ULTIMATE.start_ssl3_connect_~s__state~0) (and .cse0 .cse1 .cse2 .cse3) (and .cse4 .cse5 .cse6) (and (not .cse2) .cse4 .cse1 .cse6) (and .cse4 .cse1 .cse3) (and .cse0 .cse5 .cse6)))) [2020-12-09 10:31:17,089 INFO L262 CegarLoopResult]: For program point L159(lines 159 546) no Hoare annotation was computed. [2020-12-09 10:31:17,089 INFO L262 CegarLoopResult]: For program point L126(lines 126 557) no Hoare annotation was computed. [2020-12-09 10:31:17,089 INFO L262 CegarLoopResult]: For program point L391(lines 391 395) no Hoare annotation was computed. [2020-12-09 10:31:17,089 INFO L262 CegarLoopResult]: For program point L325-2(lines 200 530) no Hoare annotation was computed. [2020-12-09 10:31:17,089 INFO L258 CegarLoopResult]: At program point L193(lines 192 535) the Hoare annotation is: (let ((.cse2 (= ULTIMATE.start_ssl3_connect_~s__hit~0 0))) (let ((.cse4 (not .cse2))) (let ((.cse5 (= ULTIMATE.start_ssl3_connect_~blastFlag~0 2)) (.cse1 (or (and .cse4 (= 3 ULTIMATE.start_ssl3_connect_~s__state~0)) (= 4352 ULTIMATE.start_ssl3_connect_~s__state~0))) (.cse3 (= ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0 4560))) (or (and (let ((.cse0 (+ ULTIMATE.start_ssl3_connect_~s__s3__tmp__new_cipher__algorithms~0 256))) (= .cse0 (* (div .cse0 4294967296) 4294967296))) .cse1 .cse2 .cse3) (and .cse4 .cse5 .cse1 (= 3 ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0)) (and .cse5 .cse1 .cse3))))) [2020-12-09 10:31:17,089 INFO L258 CegarLoopResult]: At program point L160(lines 150 549) the Hoare annotation is: (let ((.cse1 (< 4432 ULTIMATE.start_ssl3_connect_~s__state~0)) (.cse2 (<= ULTIMATE.start_ssl3_connect_~s__state~0 4480)) (.cse3 (= ULTIMATE.start_ssl3_connect_~s__hit~0 0))) (or (and (let ((.cse0 (+ ULTIMATE.start_ssl3_connect_~s__s3__tmp__new_cipher__algorithms~0 256))) (= .cse0 (* (div .cse0 4294967296) 4294967296))) .cse1 (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4) .cse2 .cse3) (and .cse1 (= ULTIMATE.start_ssl3_connect_~blastFlag~0 2) .cse2 .cse3))) [2020-12-09 10:31:17,089 INFO L262 CegarLoopResult]: For program point L260-2(lines 200 530) no Hoare annotation was computed. [2020-12-09 10:31:17,089 INFO L262 CegarLoopResult]: For program point L162(lines 162 545) no Hoare annotation was computed. [2020-12-09 10:31:17,089 INFO L262 CegarLoopResult]: For program point L129(lines 129 556) no Hoare annotation was computed. [2020-12-09 10:31:17,089 INFO L262 CegarLoopResult]: For program point L96-1(lines 62 610) no Hoare annotation was computed. [2020-12-09 10:31:17,089 INFO L258 CegarLoopResult]: At program point L130(lines 126 557) the Hoare annotation is: (and (= ULTIMATE.start_ssl3_connect_~blastFlag~0 2) (<= ULTIMATE.start_ssl3_connect_~s__state~0 4432) (not (= ULTIMATE.start_ssl3_connect_~s__state~0 4384)) (= ULTIMATE.start_ssl3_connect_~s__hit~0 0)) [2020-12-09 10:31:17,089 INFO L262 CegarLoopResult]: For program point L428-2(lines 200 530) no Hoare annotation was computed. [2020-12-09 10:31:17,089 INFO L262 CegarLoopResult]: For program point L230(lines 230 235) no Hoare annotation was computed. [2020-12-09 10:31:17,090 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 608) no Hoare annotation was computed. [2020-12-09 10:31:17,090 INFO L262 CegarLoopResult]: For program point L363(lines 363 367) no Hoare annotation was computed. [2020-12-09 10:31:17,090 INFO L262 CegarLoopResult]: For program point L165(lines 165 544) no Hoare annotation was computed. [2020-12-09 10:31:17,090 INFO L262 CegarLoopResult]: For program point L132(lines 132 555) no Hoare annotation was computed. [2020-12-09 10:31:17,090 INFO L258 CegarLoopResult]: At program point L99(lines 99 566) the Hoare annotation is: (let ((.cse3 (= ULTIMATE.start_ssl3_connect_~s__hit~0 0))) (let ((.cse10 (not .cse3)) (.cse18 (= 3 ULTIMATE.start_ssl3_connect_~s__state~0)) (.cse15 (= ULTIMATE.start_ssl3_connect_~s__state~0 4560))) (let ((.cse5 (< 4432 ULTIMATE.start_ssl3_connect_~s__state~0)) (.cse2 (= ULTIMATE.start_ssl3_connect_~s__state~0 4416)) (.cse11 (= ULTIMATE.start_ssl3_connect_~s__state~0 4384)) (.cse4 (<= ULTIMATE.start_ssl3_connect_~s__state~0 4528)) (.cse14 (or .cse18 .cse15)) (.cse6 (= ULTIMATE.start_ssl3_connect_~blastFlag~0 2)) (.cse7 (or (and .cse10 .cse18) (= 4352 ULTIMATE.start_ssl3_connect_~s__state~0))) (.cse8 (= ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0 4560)) (.cse12 (<= 4432 ULTIMATE.start_ssl3_connect_~s__state~0)) (.cse0 (let ((.cse17 (+ ULTIMATE.start_ssl3_connect_~s__s3__tmp__new_cipher__algorithms~0 256))) (= .cse17 (* (div .cse17 4294967296) 4294967296)))) (.cse1 (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4)) (.cse13 (<= ULTIMATE.start_ssl3_connect_~s__state~0 4448)) (.cse16 (= ULTIMATE.start_ssl3_connect_~blastFlag~0 0)) (.cse9 (= ULTIMATE.start_ssl3_connect_~s__state~0 4368))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse4 .cse5 .cse6 .cse3) (and .cse0 .cse7 .cse3 .cse8) (and .cse4 .cse0 .cse5 .cse1 .cse3) (and .cse6 .cse9) (and .cse10 .cse6 .cse7 (= 3 ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0)) (and (= ULTIMATE.start_ssl3_connect_~blastFlag~0 1) .cse11) (and .cse6 .cse2 .cse3) (and .cse6 .cse11) (and .cse12 .cse6 .cse13 .cse3) (and .cse0 .cse14 .cse3 .cse8) (and (or (and .cse10 .cse15) (and (= 4400 ULTIMATE.start_ssl3_connect_~s__state~0) .cse3)) .cse6) (and .cse4 (<= 4512 ULTIMATE.start_ssl3_connect_~s__state~0) .cse6) (and .cse16 (= 12292 ULTIMATE.start_ssl3_connect_~s__state~0)) (and .cse6 .cse14 .cse8) (and .cse6 .cse7 .cse8) (and .cse12 .cse0 .cse1 .cse13 .cse3) (and .cse16 .cse9))))) [2020-12-09 10:31:17,090 INFO L258 CegarLoopResult]: At program point L166(lines 162 545) the Hoare annotation is: (let ((.cse0 (< 4432 ULTIMATE.start_ssl3_connect_~s__state~0)) (.cse1 (<= ULTIMATE.start_ssl3_connect_~s__state~0 4512)) (.cse2 (= ULTIMATE.start_ssl3_connect_~s__hit~0 0))) (or (and .cse0 (= ULTIMATE.start_ssl3_connect_~blastFlag~0 2) .cse1 .cse2) (and (let ((.cse3 (+ ULTIMATE.start_ssl3_connect_~s__s3__tmp__new_cipher__algorithms~0 256))) (= .cse3 (* (div .cse3 4294967296) 4294967296))) .cse0 (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4) .cse1 .cse2))) [2020-12-09 10:31:17,117 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 10:31:17 BoogieIcfgContainer [2020-12-09 10:31:17,117 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-09 10:31:17,118 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-09 10:31:17,118 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-09 10:31:17,118 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-09 10:31:17,118 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 10:30:51" (3/4) ... [2020-12-09 10:31:17,121 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-09 10:31:17,134 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 35 nodes and edges [2020-12-09 10:31:17,135 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2020-12-09 10:31:17,136 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-12-09 10:31:17,137 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-09 10:31:17,203 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_ec48e897-c6a0-4624-bf9e-f405a21ad45c/bin/utaipan/witness.graphml [2020-12-09 10:31:17,203 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-09 10:31:17,204 INFO L168 Benchmark]: Toolchain (without parser) took 27099.88 ms. Allocated memory was 115.3 MB in the beginning and 1.9 GB in the end (delta: 1.8 GB). Free memory was 84.4 MB in the beginning and 924.8 MB in the end (delta: -840.4 MB). Peak memory consumption was 980.4 MB. Max. memory is 16.1 GB. [2020-12-09 10:31:17,204 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 115.3 MB. Free memory is still 92.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 10:31:17,204 INFO L168 Benchmark]: CACSL2BoogieTranslator took 215.43 ms. Allocated memory is still 115.3 MB. Free memory was 84.2 MB in the beginning and 70.6 MB in the end (delta: 13.6 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2020-12-09 10:31:17,205 INFO L168 Benchmark]: Boogie Procedure Inliner took 36.90 ms. Allocated memory is still 115.3 MB. Free memory was 70.5 MB in the beginning and 68.2 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-09 10:31:17,205 INFO L168 Benchmark]: Boogie Preprocessor took 33.45 ms. Allocated memory is still 115.3 MB. Free memory was 68.1 MB in the beginning and 66.3 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-09 10:31:17,205 INFO L168 Benchmark]: RCFGBuilder took 689.99 ms. Allocated memory was 115.3 MB in the beginning and 165.7 MB in the end (delta: 50.3 MB). Free memory was 66.2 MB in the beginning and 135.4 MB in the end (delta: -69.2 MB). Peak memory consumption was 20.7 MB. Max. memory is 16.1 GB. [2020-12-09 10:31:17,206 INFO L168 Benchmark]: TraceAbstraction took 26033.89 ms. Allocated memory was 165.7 MB in the beginning and 1.9 GB in the end (delta: 1.8 GB). Free memory was 135.4 MB in the beginning and 934.3 MB in the end (delta: -798.8 MB). Peak memory consumption was 1.6 GB. Max. memory is 16.1 GB. [2020-12-09 10:31:17,206 INFO L168 Benchmark]: Witness Printer took 85.28 ms. Allocated memory is still 1.9 GB. Free memory was 934.3 MB in the beginning and 924.8 MB in the end (delta: 9.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-12-09 10:31:17,207 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 115.3 MB. Free memory is still 92.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 215.43 ms. Allocated memory is still 115.3 MB. Free memory was 84.2 MB in the beginning and 70.6 MB in the end (delta: 13.6 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 36.90 ms. Allocated memory is still 115.3 MB. Free memory was 70.5 MB in the beginning and 68.2 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 33.45 ms. Allocated memory is still 115.3 MB. Free memory was 68.1 MB in the beginning and 66.3 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 689.99 ms. Allocated memory was 115.3 MB in the beginning and 165.7 MB in the end (delta: 50.3 MB). Free memory was 66.2 MB in the beginning and 135.4 MB in the end (delta: -69.2 MB). Peak memory consumption was 20.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 26033.89 ms. Allocated memory was 165.7 MB in the beginning and 1.9 GB in the end (delta: 1.8 GB). Free memory was 135.4 MB in the beginning and 934.3 MB in the end (delta: -798.8 MB). Peak memory consumption was 1.6 GB. Max. memory is 16.1 GB. * Witness Printer took 85.28 ms. Allocated memory is still 1.9 GB. Free memory was 934.3 MB in the beginning and 924.8 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: 608]: 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: 162]: Loop Invariant Derived loop invariant: (((4432 < s__state && blastFlag == 2) && s__state <= 4512) && s__hit == 0) || ((((s__s3__tmp__new_cipher__algorithms + 256 == (s__s3__tmp__new_cipher__algorithms + 256) / 4294967296 * 4294967296 && 4432 < s__state) && blastFlag <= 4) && s__state <= 4512) && s__hit == 0) - InvariantResult [Line: 120]: Loop Invariant Derived loop invariant: (blastFlag == 2 || blastFlag == 1) && s__state <= 4432 - InvariantResult [Line: 9]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 174]: Loop Invariant Derived loop invariant: ((((s__state <= 4528 && 4432 < s__state) && blastFlag == 2) && s__hit == 0) || ((s__state <= 4528 && 4512 <= s__state) && blastFlag == 2)) || ((((s__state <= 4528 && s__s3__tmp__new_cipher__algorithms + 256 == (s__s3__tmp__new_cipher__algorithms + 256) / 4294967296 * 4294967296) && 4432 < s__state) && blastFlag <= 4) && s__hit == 0) - InvariantResult [Line: 95]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 132]: Loop Invariant Derived loop invariant: ((((s__s3__tmp__new_cipher__algorithms + 256 == (s__s3__tmp__new_cipher__algorithms + 256) / 4294967296 * 4294967296 && s__state <= 4432) && blastFlag <= 4) && !(s__state == 4384)) && s__hit == 0) || (((blastFlag == 2 && s__state <= 4432) && !(s__state == 4384)) && s__hit == 0) - InvariantResult [Line: 186]: Loop Invariant Derived loop invariant: ((((s__s3__tmp__new_cipher__algorithms + 256 == (s__s3__tmp__new_cipher__algorithms + 256) / 4294967296 * 4294967296 && s__state == 4560) && s__hit == 0) && s__s3__tmp__next_state___0 == 4560) || ((!(s__hit == 0) && blastFlag == 2) && s__state == 4560)) || ((blastFlag == 2 && s__state == 4560) && s__s3__tmp__next_state___0 == 4560) - InvariantResult [Line: 144]: Loop Invariant Derived loop invariant: ((((s__s3__tmp__new_cipher__algorithms + 256 == (s__s3__tmp__new_cipher__algorithms + 256) / 4294967296 * 4294967296 && 4432 < s__state) && blastFlag <= 4) && s__state <= 4480) && s__hit == 0) || (((4432 < s__state && blastFlag == 2) && s__state <= 4480) && s__hit == 0) - InvariantResult [Line: 96]: Loop Invariant Derived loop invariant: ((((((((((((((((((s__s3__tmp__new_cipher__algorithms + 256 == (s__s3__tmp__new_cipher__algorithms + 256) / 4294967296 * 4294967296 && blastFlag <= 4) && s__state == 4416) && s__hit == 0) || (((s__state <= 4528 && 4432 < s__state) && blastFlag == 2) && s__hit == 0)) || (((s__s3__tmp__new_cipher__algorithms + 256 == (s__s3__tmp__new_cipher__algorithms + 256) / 4294967296 * 4294967296 && ((!(s__hit == 0) && 3 == s__state) || 4352 == s__state)) && s__hit == 0) && s__s3__tmp__next_state___0 == 4560)) || ((((s__state <= 4528 && s__s3__tmp__new_cipher__algorithms + 256 == (s__s3__tmp__new_cipher__algorithms + 256) / 4294967296 * 4294967296) && 4432 < s__state) && blastFlag <= 4) && s__hit == 0)) || (blastFlag == 2 && s__state == 4368)) || (((!(s__hit == 0) && blastFlag == 2) && ((!(s__hit == 0) && 3 == s__state) || 4352 == s__state)) && 3 == s__s3__tmp__next_state___0)) || (blastFlag == 1 && s__state == 4384)) || ((blastFlag == 2 && s__state == 4416) && s__hit == 0)) || (blastFlag == 2 && s__state == 4384)) || (((4432 <= s__state && blastFlag == 2) && s__state <= 4448) && s__hit == 0)) || (((s__s3__tmp__new_cipher__algorithms + 256 == (s__s3__tmp__new_cipher__algorithms + 256) / 4294967296 * 4294967296 && (3 == s__state || s__state == 4560)) && s__hit == 0) && s__s3__tmp__next_state___0 == 4560)) || (((!(s__hit == 0) && s__state == 4560) || (4400 == s__state && s__hit == 0)) && blastFlag == 2)) || ((s__state <= 4528 && 4512 <= s__state) && blastFlag == 2)) || ((blastFlag == 2 && (3 == s__state || s__state == 4560)) && s__s3__tmp__next_state___0 == 4560)) || ((blastFlag == 2 && ((!(s__hit == 0) && 3 == s__state) || 4352 == s__state)) && s__s3__tmp__next_state___0 == 4560)) || ((((4432 <= s__state && s__s3__tmp__new_cipher__algorithms + 256 == (s__s3__tmp__new_cipher__algorithms + 256) / 4294967296 * 4294967296) && blastFlag <= 4) && s__state <= 4448) && s__hit == 0)) || (blastFlag == 0 && s__state == 4368) - InvariantResult [Line: 150]: Loop Invariant Derived loop invariant: ((((s__s3__tmp__new_cipher__algorithms + 256 == (s__s3__tmp__new_cipher__algorithms + 256) / 4294967296 * 4294967296 && 4432 < s__state) && blastFlag <= 4) && s__state <= 4480) && s__hit == 0) || (((4432 < s__state && blastFlag == 2) && s__state <= 4480) && s__hit == 0) - InvariantResult [Line: 192]: Loop Invariant Derived loop invariant: ((((4432 <= s__state || (((s__s3__tmp__new_cipher__algorithms + 256 == (s__s3__tmp__new_cipher__algorithms + 256) / 4294967296 * 4294967296 && !(s__state == 4384)) && s__hit == 0) && s__s3__tmp__next_state___0 == 4560)) || ((blastFlag == 2 && (3 == s__state || s__state == 4560)) && (3 == s__s3__tmp__next_state___0 || s__s3__tmp__next_state___0 == 4560))) || (((!(s__hit == 0) && blastFlag == 2) && !(s__state == 4384)) && (3 == s__s3__tmp__next_state___0 || s__s3__tmp__next_state___0 == 4560))) || ((blastFlag == 2 && !(s__state == 4384)) && s__s3__tmp__next_state___0 == 4560)) || ((s__s3__tmp__new_cipher__algorithms + 256 == (s__s3__tmp__new_cipher__algorithms + 256) / 4294967296 * 4294967296 && (3 == s__state || s__state == 4560)) && (3 == s__s3__tmp__next_state___0 || s__s3__tmp__next_state___0 == 4560)) - InvariantResult [Line: 114]: Loop Invariant Derived loop invariant: (blastFlag == 0 || blastFlag == 2) && s__state < 4384 - InvariantResult [Line: 192]: Loop Invariant Derived loop invariant: ((((s__s3__tmp__new_cipher__algorithms + 256 == (s__s3__tmp__new_cipher__algorithms + 256) / 4294967296 * 4294967296 && ((!(s__hit == 0) && 3 == s__state) || 4352 == s__state)) && s__hit == 0) && s__s3__tmp__next_state___0 == 4560) || (((!(s__hit == 0) && blastFlag == 2) && ((!(s__hit == 0) && 3 == s__state) || 4352 == s__state)) && 3 == s__s3__tmp__next_state___0)) || ((blastFlag == 2 && ((!(s__hit == 0) && 3 == s__state) || 4352 == s__state)) && s__s3__tmp__next_state___0 == 4560) - InvariantResult [Line: 168]: Loop Invariant Derived loop invariant: (((4432 < s__state && blastFlag == 2) && s__state <= 4512) && s__hit == 0) || ((((s__s3__tmp__new_cipher__algorithms + 256 == (s__s3__tmp__new_cipher__algorithms + 256) / 4294967296 * 4294967296 && 4432 < s__state) && blastFlag <= 4) && s__state <= 4512) && s__hit == 0) - InvariantResult [Line: 62]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 126]: Loop Invariant Derived loop invariant: ((blastFlag == 2 && s__state <= 4432) && !(s__state == 4384)) && s__hit == 0 - InvariantResult [Line: 102]: Loop Invariant Derived loop invariant: (blastFlag == 0 || blastFlag == 2) && !(s__state == 4384) - InvariantResult [Line: 180]: Loop Invariant Derived loop invariant: (((((s__s3__tmp__new_cipher__algorithms + 256 == (s__s3__tmp__new_cipher__algorithms + 256) / 4294967296 * 4294967296 && 4432 < s__state) && blastFlag <= 4) && s__hit == 0) || ((4432 < s__state && blastFlag == 2) && s__hit == 0)) || (4512 <= s__state && blastFlag == 2)) || (((s__s3__tmp__new_cipher__algorithms + 256 == (s__s3__tmp__new_cipher__algorithms + 256) / 4294967296 * 4294967296 && 4432 < s__state) && (3 == s__s3__tmp__next_state___0 || s__s3__tmp__next_state___0 == 4560)) && s__hit == 0) - InvariantResult [Line: 99]: Loop Invariant Derived loop invariant: (((((((((((((((((((s__s3__tmp__new_cipher__algorithms + 256 == (s__s3__tmp__new_cipher__algorithms + 256) / 4294967296 * 4294967296 && blastFlag <= 4) && s__state == 4416) && s__hit == 0) || (((s__state <= 4528 && 4432 < s__state) && blastFlag == 2) && s__hit == 0)) || (((s__s3__tmp__new_cipher__algorithms + 256 == (s__s3__tmp__new_cipher__algorithms + 256) / 4294967296 * 4294967296 && ((!(s__hit == 0) && 3 == s__state) || 4352 == s__state)) && s__hit == 0) && s__s3__tmp__next_state___0 == 4560)) || ((((s__state <= 4528 && s__s3__tmp__new_cipher__algorithms + 256 == (s__s3__tmp__new_cipher__algorithms + 256) / 4294967296 * 4294967296) && 4432 < s__state) && blastFlag <= 4) && s__hit == 0)) || (blastFlag == 2 && s__state == 4368)) || (((!(s__hit == 0) && blastFlag == 2) && ((!(s__hit == 0) && 3 == s__state) || 4352 == s__state)) && 3 == s__s3__tmp__next_state___0)) || (blastFlag == 1 && s__state == 4384)) || ((blastFlag == 2 && s__state == 4416) && s__hit == 0)) || (blastFlag == 2 && s__state == 4384)) || (((4432 <= s__state && blastFlag == 2) && s__state <= 4448) && s__hit == 0)) || (((s__s3__tmp__new_cipher__algorithms + 256 == (s__s3__tmp__new_cipher__algorithms + 256) / 4294967296 * 4294967296 && (3 == s__state || s__state == 4560)) && s__hit == 0) && s__s3__tmp__next_state___0 == 4560)) || (((!(s__hit == 0) && s__state == 4560) || (4400 == s__state && s__hit == 0)) && blastFlag == 2)) || ((s__state <= 4528 && 4512 <= s__state) && blastFlag == 2)) || (blastFlag == 0 && 12292 == s__state)) || ((blastFlag == 2 && (3 == s__state || s__state == 4560)) && s__s3__tmp__next_state___0 == 4560)) || ((blastFlag == 2 && ((!(s__hit == 0) && 3 == s__state) || 4352 == s__state)) && s__s3__tmp__next_state___0 == 4560)) || ((((4432 <= s__state && s__s3__tmp__new_cipher__algorithms + 256 == (s__s3__tmp__new_cipher__algorithms + 256) / 4294967296 * 4294967296) && blastFlag <= 4) && s__state <= 4448) && s__hit == 0)) || (blastFlag == 0 && s__state == 4368) - InvariantResult [Line: 138]: Loop Invariant Derived loop invariant: (((4432 <= s__state && blastFlag == 2) && s__state <= 4448) && s__hit == 0) || ((((4432 <= s__state && s__s3__tmp__new_cipher__algorithms + 256 == (s__s3__tmp__new_cipher__algorithms + 256) / 4294967296 * 4294967296) && blastFlag <= 4) && s__state <= 4448) && s__hit == 0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 84 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 24.4s, OverallIterations: 17, TraceHistogramMax: 17, AutomataDifference: 2.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 2098 SDtfs, 1728 SDslu, 2041 SDs, 0 SdLazy, 3249 SolverSat, 552 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2797 GetRequests, 2730 SyntacticMatches, 2 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1328occurred in iteration=16, 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, 17 MinimizatonAttempts, 809 StatesRemovedByMinimization, 14 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 20 LocationsWithAnnotation, 20 PreInvPairs, 169 NumberOfFragments, 1166 HoareAnnotationTreeSize, 20 FomulaSimplifications, 14005 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 20 FomulaSimplificationsInter, 1045 FormulaSimplificationTreeSizeReductionInter, 1.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 2.7s InterpolantComputationTime, 4219 NumberOfCodeBlocks, 4060 NumberOfCodeBlocksAsserted, 29 NumberOfCheckSat, 5551 ConstructedInterpolants, 0 QuantifiedInterpolants, 2776921 SizeOfPredicates, 21 NumberOfNonLiveVariables, 2269 ConjunctsInSsa, 27 ConjunctsInUnsatCore, 29 InterpolantComputations, 15 PerfectInterpolantSequences, 20967/21850 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...