./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ntdrivers-simplified/kbfiltr_simpl1.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 47ea0209 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9701415b-2436-4dfa-ab4b-b8230276040c/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9701415b-2436-4dfa-ab4b-b8230276040c/bin/utaipan-UUZaoUuFF8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9701415b-2436-4dfa-ab4b-b8230276040c/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9701415b-2436-4dfa-ab4b-b8230276040c/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/ntdrivers-simplified/kbfiltr_simpl1.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9701415b-2436-4dfa-ab4b-b8230276040c/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9701415b-2436-4dfa-ab4b-b8230276040c/bin/utaipan-UUZaoUuFF8 --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 db1e722f73dbd7795cdbaca4c816f6c8a0f90138145d9f90bf0f222b7dd371eb --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 02:18:42,264 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 02:18:42,266 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 02:18:42,310 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 02:18:42,311 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 02:18:42,312 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 02:18:42,315 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 02:18:42,318 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 02:18:42,321 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 02:18:42,322 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 02:18:42,324 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 02:18:42,325 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 02:18:42,326 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 02:18:42,328 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 02:18:42,331 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 02:18:42,337 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 02:18:42,339 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 02:18:42,341 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 02:18:42,344 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 02:18:42,347 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 02:18:42,357 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 02:18:42,366 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 02:18:42,372 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 02:18:42,374 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 02:18:42,385 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 02:18:42,385 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 02:18:42,386 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 02:18:42,387 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 02:18:42,388 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 02:18:42,389 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 02:18:42,390 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 02:18:42,391 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 02:18:42,392 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 02:18:42,400 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 02:18:42,403 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 02:18:42,404 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 02:18:42,405 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 02:18:42,405 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 02:18:42,405 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 02:18:42,411 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 02:18:42,412 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 02:18:42,414 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9701415b-2436-4dfa-ab4b-b8230276040c/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-07 02:18:42,477 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 02:18:42,477 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 02:18:42,482 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 02:18:42,483 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 02:18:42,483 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 02:18:42,483 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 02:18:42,484 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-07 02:18:42,484 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 02:18:42,484 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 02:18:42,484 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-07 02:18:42,486 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-07 02:18:42,486 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 02:18:42,486 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-07 02:18:42,487 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-07 02:18:42,487 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-07 02:18:42,488 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 02:18:42,488 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-07 02:18:42,488 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 02:18:42,488 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-07 02:18:42,489 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 02:18:42,489 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 02:18:42,489 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 02:18:42,490 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 02:18:42,490 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 02:18:42,490 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-07 02:18:42,491 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 02:18:42,491 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 02:18:42,491 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 02:18:42,492 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 02:18:42,493 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 02:18:42,494 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 02:18:42,494 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 02:18:42,495 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 02:18:42,495 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 02:18:42,495 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-07 02:18:42,496 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 02:18:42,496 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 02:18:42,496 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 02:18:42,496 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 02:18:42,497 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_worker_vcloud-master_on_vcloud-master/run_dir_9701415b-2436-4dfa-ab4b-b8230276040c/bin/utaipan-UUZaoUuFF8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9701415b-2436-4dfa-ab4b-b8230276040c/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> db1e722f73dbd7795cdbaca4c816f6c8a0f90138145d9f90bf0f222b7dd371eb [2021-11-07 02:18:42,893 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 02:18:42,932 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 02:18:42,936 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 02:18:42,937 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 02:18:42,938 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 02:18:42,940 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9701415b-2436-4dfa-ab4b-b8230276040c/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/ntdrivers-simplified/kbfiltr_simpl1.cil.c [2021-11-07 02:18:43,035 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9701415b-2436-4dfa-ab4b-b8230276040c/bin/utaipan-UUZaoUuFF8/data/f4f289e1f/f65fd456115c4116bf568bbf741b66b8/FLAG3204eb0ed [2021-11-07 02:18:43,666 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 02:18:43,667 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9701415b-2436-4dfa-ab4b-b8230276040c/sv-benchmarks/c/ntdrivers-simplified/kbfiltr_simpl1.cil.c [2021-11-07 02:18:43,685 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9701415b-2436-4dfa-ab4b-b8230276040c/bin/utaipan-UUZaoUuFF8/data/f4f289e1f/f65fd456115c4116bf568bbf741b66b8/FLAG3204eb0ed [2021-11-07 02:18:43,971 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9701415b-2436-4dfa-ab4b-b8230276040c/bin/utaipan-UUZaoUuFF8/data/f4f289e1f/f65fd456115c4116bf568bbf741b66b8 [2021-11-07 02:18:43,982 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 02:18:43,983 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 02:18:43,986 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 02:18:43,986 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 02:18:44,001 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 02:18:44,002 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 02:18:43" (1/1) ... [2021-11-07 02:18:44,003 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@640e2a87 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:18:44, skipping insertion in model container [2021-11-07 02:18:44,004 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 02:18:43" (1/1) ... [2021-11-07 02:18:44,013 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 02:18:44,054 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 02:18:44,381 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9701415b-2436-4dfa-ab4b-b8230276040c/sv-benchmarks/c/ntdrivers-simplified/kbfiltr_simpl1.cil.c[17080,17093] [2021-11-07 02:18:44,385 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 02:18:44,407 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 02:18:44,492 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9701415b-2436-4dfa-ab4b-b8230276040c/sv-benchmarks/c/ntdrivers-simplified/kbfiltr_simpl1.cil.c[17080,17093] [2021-11-07 02:18:44,493 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 02:18:44,512 INFO L208 MainTranslator]: Completed translation [2021-11-07 02:18:44,512 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:18:44 WrapperNode [2021-11-07 02:18:44,512 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 02:18:44,514 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 02:18:44,514 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 02:18:44,514 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 02:18:44,524 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:18:44" (1/1) ... [2021-11-07 02:18:44,550 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:18:44" (1/1) ... [2021-11-07 02:18:44,624 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 02:18:44,626 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 02:18:44,626 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 02:18:44,627 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 02:18:44,638 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:18:44" (1/1) ... [2021-11-07 02:18:44,639 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:18:44" (1/1) ... [2021-11-07 02:18:44,660 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:18:44" (1/1) ... [2021-11-07 02:18:44,660 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:18:44" (1/1) ... [2021-11-07 02:18:44,675 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:18:44" (1/1) ... [2021-11-07 02:18:44,699 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:18:44" (1/1) ... [2021-11-07 02:18:44,706 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:18:44" (1/1) ... [2021-11-07 02:18:44,727 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 02:18:44,728 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 02:18:44,728 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 02:18:44,728 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 02:18:44,731 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:18:44" (1/1) ... [2021-11-07 02:18:44,740 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 02:18:44,757 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9701415b-2436-4dfa-ab4b-b8230276040c/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 02:18:44,771 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9701415b-2436-4dfa-ab4b-b8230276040c/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 02:18:44,778 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9701415b-2436-4dfa-ab4b-b8230276040c/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 02:18:44,819 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-07 02:18:44,819 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 02:18:44,820 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 02:18:44,820 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 02:18:44,950 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-07 02:18:44,958 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-07 02:18:44,967 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-07 02:18:44,974 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-07 02:18:44,984 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-07 02:18:44,999 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-07 02:18:45,027 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-07 02:18:45,761 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##76: assume !false; [2021-11-07 02:18:45,761 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##75: assume false; [2021-11-07 02:18:45,761 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##184: assume false; [2021-11-07 02:18:45,761 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##185: assume !false; [2021-11-07 02:18:45,762 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##58: assume !false; [2021-11-07 02:18:45,762 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##57: assume false; [2021-11-07 02:18:45,762 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##131: assume !false; [2021-11-07 02:18:45,762 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##130: assume false; [2021-11-07 02:18:45,762 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##14: assume !false; [2021-11-07 02:18:45,763 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##13: assume false; [2021-11-07 02:18:45,763 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##158: assume !false; [2021-11-07 02:18:45,763 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##157: assume false; [2021-11-07 02:18:45,763 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##106: assume !false; [2021-11-07 02:18:45,764 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##105: assume false; [2021-11-07 02:18:46,547 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 02:18:46,548 INFO L299 CfgBuilder]: Removed 78 assume(true) statements. [2021-11-07 02:18:46,552 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 02:18:46 BoogieIcfgContainer [2021-11-07 02:18:46,552 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 02:18:46,554 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 02:18:46,555 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 02:18:46,560 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 02:18:46,560 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 02:18:43" (1/3) ... [2021-11-07 02:18:46,561 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a149e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 02:18:46, skipping insertion in model container [2021-11-07 02:18:46,562 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:18:44" (2/3) ... [2021-11-07 02:18:46,562 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a149e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 02:18:46, skipping insertion in model container [2021-11-07 02:18:46,562 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 02:18:46" (3/3) ... [2021-11-07 02:18:46,566 INFO L111 eAbstractionObserver]: Analyzing ICFG kbfiltr_simpl1.cil.c [2021-11-07 02:18:46,574 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 02:18:46,575 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 16 error locations. [2021-11-07 02:18:46,654 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 02:18:46,669 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-07 02:18:46,669 INFO L340 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2021-11-07 02:18:46,696 INFO L276 IsEmpty]: Start isEmpty. Operand has 99 states, 82 states have (on average 1.7804878048780488) internal successors, (146), 98 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:18:46,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-07 02:18:46,703 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:18:46,704 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-07 02:18:46,705 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-07 02:18:46,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:18:46,712 INFO L85 PathProgramCache]: Analyzing trace with hash -1304012784, now seen corresponding path program 1 times [2021-11-07 02:18:46,742 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-07 02:18:46,743 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [115123692] [2021-11-07 02:18:46,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:18:46,745 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 02:18:46,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:18:47,042 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:18:47,043 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-07 02:18:47,044 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [115123692] [2021-11-07 02:18:47,045 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [115123692] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 02:18:47,046 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:18:47,046 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 02:18:47,049 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [156914067] [2021-11-07 02:18:47,055 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 02:18:47,055 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-07 02:18:47,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 02:18:47,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 02:18:47,081 INFO L87 Difference]: Start difference. First operand has 99 states, 82 states have (on average 1.7804878048780488) internal successors, (146), 98 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:18:47,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:18:47,276 INFO L93 Difference]: Finished difference Result 182 states and 266 transitions. [2021-11-07 02:18:47,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 02:18:47,278 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2021-11-07 02:18:47,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:18:47,291 INFO L225 Difference]: With dead ends: 182 [2021-11-07 02:18:47,292 INFO L226 Difference]: Without dead ends: 91 [2021-11-07 02:18:47,296 INFO L786 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 [2021-11-07 02:18:47,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2021-11-07 02:18:47,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 91. [2021-11-07 02:18:47,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 80 states have (on average 1.425) internal successors, (114), 90 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:18:47,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 114 transitions. [2021-11-07 02:18:47,364 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 114 transitions. Word has length 7 [2021-11-07 02:18:47,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:18:47,365 INFO L470 AbstractCegarLoop]: Abstraction has 91 states and 114 transitions. [2021-11-07 02:18:47,365 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:18:47,366 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 114 transitions. [2021-11-07 02:18:47,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-07 02:18:47,367 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:18:47,367 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 02:18:47,367 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-07 02:18:47,368 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-07 02:18:47,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:18:47,368 INFO L85 PathProgramCache]: Analyzing trace with hash -1769684502, now seen corresponding path program 1 times [2021-11-07 02:18:47,369 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-07 02:18:47,369 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [955171016] [2021-11-07 02:18:47,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:18:47,370 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 02:18:47,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:18:47,494 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:18:47,495 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-07 02:18:47,495 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [955171016] [2021-11-07 02:18:47,496 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [955171016] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 02:18:47,496 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:18:47,496 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 02:18:47,497 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2009806983] [2021-11-07 02:18:47,498 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 02:18:47,498 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-07 02:18:47,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 02:18:47,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 02:18:47,504 INFO L87 Difference]: Start difference. First operand 91 states and 114 transitions. Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:18:47,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:18:47,545 INFO L93 Difference]: Finished difference Result 156 states and 195 transitions. [2021-11-07 02:18:47,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 02:18:47,547 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2021-11-07 02:18:47,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:18:47,549 INFO L225 Difference]: With dead ends: 156 [2021-11-07 02:18:47,549 INFO L226 Difference]: Without dead ends: 110 [2021-11-07 02:18:47,551 INFO L786 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 [2021-11-07 02:18:47,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2021-11-07 02:18:47,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 80. [2021-11-07 02:18:47,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 73 states have (on average 1.36986301369863) internal successors, (100), 79 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:18:47,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 100 transitions. [2021-11-07 02:18:47,567 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 100 transitions. Word has length 8 [2021-11-07 02:18:47,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:18:47,575 INFO L470 AbstractCegarLoop]: Abstraction has 80 states and 100 transitions. [2021-11-07 02:18:47,575 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:18:47,576 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 100 transitions. [2021-11-07 02:18:47,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-07 02:18:47,577 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:18:47,578 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 02:18:47,578 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-07 02:18:47,578 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-07 02:18:47,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:18:47,586 INFO L85 PathProgramCache]: Analyzing trace with hash -185772138, now seen corresponding path program 1 times [2021-11-07 02:18:47,587 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-07 02:18:47,587 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [361448031] [2021-11-07 02:18:47,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:18:47,587 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 02:18:47,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:18:47,681 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:18:47,681 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-07 02:18:47,682 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [361448031] [2021-11-07 02:18:47,682 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [361448031] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 02:18:47,682 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:18:47,682 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-07 02:18:47,683 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1384424917] [2021-11-07 02:18:47,683 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 02:18:47,683 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-07 02:18:47,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 02:18:47,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 02:18:47,685 INFO L87 Difference]: Start difference. First operand 80 states and 100 transitions. Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:18:47,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:18:47,715 INFO L93 Difference]: Finished difference Result 93 states and 116 transitions. [2021-11-07 02:18:47,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 02:18:47,716 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2021-11-07 02:18:47,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:18:47,718 INFO L225 Difference]: With dead ends: 93 [2021-11-07 02:18:47,718 INFO L226 Difference]: Without dead ends: 80 [2021-11-07 02:18:47,718 INFO L786 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 [2021-11-07 02:18:47,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2021-11-07 02:18:47,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2021-11-07 02:18:47,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 73 states have (on average 1.356164383561644) internal successors, (99), 79 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:18:47,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 99 transitions. [2021-11-07 02:18:47,737 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 99 transitions. Word has length 10 [2021-11-07 02:18:47,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:18:47,738 INFO L470 AbstractCegarLoop]: Abstraction has 80 states and 99 transitions. [2021-11-07 02:18:47,738 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:18:47,739 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 99 transitions. [2021-11-07 02:18:47,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-11-07 02:18:47,741 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:18:47,741 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 02:18:47,741 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-07 02:18:47,742 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-07 02:18:47,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:18:47,743 INFO L85 PathProgramCache]: Analyzing trace with hash -348679134, now seen corresponding path program 1 times [2021-11-07 02:18:47,743 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-07 02:18:47,744 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [728402836] [2021-11-07 02:18:47,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:18:47,744 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 02:18:47,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:18:47,823 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:18:47,823 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-07 02:18:47,824 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [728402836] [2021-11-07 02:18:47,824 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [728402836] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 02:18:47,824 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:18:47,824 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 02:18:47,825 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [811996312] [2021-11-07 02:18:47,825 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 02:18:47,825 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-07 02:18:47,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 02:18:47,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 02:18:47,827 INFO L87 Difference]: Start difference. First operand 80 states and 99 transitions. Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:18:47,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:18:47,921 INFO L93 Difference]: Finished difference Result 80 states and 99 transitions. [2021-11-07 02:18:47,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 02:18:47,922 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2021-11-07 02:18:47,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:18:47,926 INFO L225 Difference]: With dead ends: 80 [2021-11-07 02:18:47,926 INFO L226 Difference]: Without dead ends: 74 [2021-11-07 02:18:47,928 INFO L786 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 [2021-11-07 02:18:47,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2021-11-07 02:18:47,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2021-11-07 02:18:47,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 70 states have (on average 1.3285714285714285) internal successors, (93), 73 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:18:47,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 93 transitions. [2021-11-07 02:18:47,939 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 93 transitions. Word has length 14 [2021-11-07 02:18:47,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:18:47,939 INFO L470 AbstractCegarLoop]: Abstraction has 74 states and 93 transitions. [2021-11-07 02:18:47,939 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:18:47,940 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 93 transitions. [2021-11-07 02:18:47,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-11-07 02:18:47,941 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:18:47,941 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 02:18:47,941 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-07 02:18:47,946 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-07 02:18:47,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:18:47,947 INFO L85 PathProgramCache]: Analyzing trace with hash -1472755008, now seen corresponding path program 1 times [2021-11-07 02:18:47,947 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-07 02:18:47,948 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [108111847] [2021-11-07 02:18:47,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:18:47,949 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 02:18:48,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:18:48,059 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:18:48,060 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-07 02:18:48,060 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [108111847] [2021-11-07 02:18:48,061 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [108111847] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 02:18:48,061 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:18:48,061 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 02:18:48,062 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [508750505] [2021-11-07 02:18:48,063 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 02:18:48,063 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-07 02:18:48,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 02:18:48,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 02:18:48,065 INFO L87 Difference]: Start difference. First operand 74 states and 93 transitions. Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:18:48,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:18:48,143 INFO L93 Difference]: Finished difference Result 104 states and 130 transitions. [2021-11-07 02:18:48,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 02:18:48,143 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2021-11-07 02:18:48,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:18:48,147 INFO L225 Difference]: With dead ends: 104 [2021-11-07 02:18:48,147 INFO L226 Difference]: Without dead ends: 71 [2021-11-07 02:18:48,148 INFO L786 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 [2021-11-07 02:18:48,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2021-11-07 02:18:48,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2021-11-07 02:18:48,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 68 states have (on average 1.3088235294117647) internal successors, (89), 70 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:18:48,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 89 transitions. [2021-11-07 02:18:48,169 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 89 transitions. Word has length 15 [2021-11-07 02:18:48,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:18:48,170 INFO L470 AbstractCegarLoop]: Abstraction has 71 states and 89 transitions. [2021-11-07 02:18:48,170 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:18:48,170 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 89 transitions. [2021-11-07 02:18:48,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-11-07 02:18:48,172 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:18:48,172 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 02:18:48,172 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-07 02:18:48,173 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-07 02:18:48,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:18:48,174 INFO L85 PathProgramCache]: Analyzing trace with hash 1689962948, now seen corresponding path program 1 times [2021-11-07 02:18:48,174 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-07 02:18:48,174 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1904358977] [2021-11-07 02:18:48,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:18:48,175 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 02:18:48,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:18:48,236 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:18:48,237 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-07 02:18:48,237 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1904358977] [2021-11-07 02:18:48,237 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1904358977] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 02:18:48,238 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:18:48,238 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-07 02:18:48,238 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [841536131] [2021-11-07 02:18:48,239 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 02:18:48,239 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-07 02:18:48,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 02:18:48,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-07 02:18:48,240 INFO L87 Difference]: Start difference. First operand 71 states and 89 transitions. Second operand has 5 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:18:48,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:18:48,295 INFO L93 Difference]: Finished difference Result 115 states and 143 transitions. [2021-11-07 02:18:48,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-07 02:18:48,296 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2021-11-07 02:18:48,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:18:48,298 INFO L225 Difference]: With dead ends: 115 [2021-11-07 02:18:48,298 INFO L226 Difference]: Without dead ends: 83 [2021-11-07 02:18:48,299 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-07 02:18:48,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2021-11-07 02:18:48,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 69. [2021-11-07 02:18:48,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 66 states have (on average 1.303030303030303) internal successors, (86), 68 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:18:48,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 86 transitions. [2021-11-07 02:18:48,309 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 86 transitions. Word has length 16 [2021-11-07 02:18:48,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:18:48,310 INFO L470 AbstractCegarLoop]: Abstraction has 69 states and 86 transitions. [2021-11-07 02:18:48,310 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:18:48,310 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 86 transitions. [2021-11-07 02:18:48,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-07 02:18:48,311 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:18:48,312 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 02:18:48,312 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-07 02:18:48,312 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-07 02:18:48,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:18:48,313 INFO L85 PathProgramCache]: Analyzing trace with hash -1901795932, now seen corresponding path program 1 times [2021-11-07 02:18:48,314 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-07 02:18:48,314 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1522542523] [2021-11-07 02:18:48,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:18:48,315 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 02:18:48,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:18:48,388 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:18:48,388 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-07 02:18:48,388 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1522542523] [2021-11-07 02:18:48,389 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1522542523] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 02:18:48,389 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:18:48,389 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 02:18:48,390 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1184861205] [2021-11-07 02:18:48,390 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 02:18:48,391 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-07 02:18:48,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 02:18:48,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 02:18:48,392 INFO L87 Difference]: Start difference. First operand 69 states and 86 transitions. Second operand has 4 states, 4 states have (on average 4.25) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:18:48,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:18:48,510 INFO L93 Difference]: Finished difference Result 110 states and 136 transitions. [2021-11-07 02:18:48,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 02:18:48,512 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2021-11-07 02:18:48,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:18:48,513 INFO L225 Difference]: With dead ends: 110 [2021-11-07 02:18:48,513 INFO L226 Difference]: Without dead ends: 80 [2021-11-07 02:18:48,515 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 02:18:48,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2021-11-07 02:18:48,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 69. [2021-11-07 02:18:48,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 66 states have (on average 1.2878787878787878) internal successors, (85), 68 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:18:48,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 85 transitions. [2021-11-07 02:18:48,536 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 85 transitions. Word has length 17 [2021-11-07 02:18:48,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:18:48,537 INFO L470 AbstractCegarLoop]: Abstraction has 69 states and 85 transitions. [2021-11-07 02:18:48,537 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:18:48,537 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 85 transitions. [2021-11-07 02:18:48,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-11-07 02:18:48,538 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:18:48,539 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 02:18:48,539 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-07 02:18:48,539 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-07 02:18:48,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:18:48,540 INFO L85 PathProgramCache]: Analyzing trace with hash 157741899, now seen corresponding path program 1 times [2021-11-07 02:18:48,540 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-07 02:18:48,540 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [361599894] [2021-11-07 02:18:48,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:18:48,541 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 02:18:48,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:18:48,670 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:18:48,670 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-07 02:18:48,671 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [361599894] [2021-11-07 02:18:48,671 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [361599894] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 02:18:48,671 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:18:48,671 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-07 02:18:48,671 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2082644285] [2021-11-07 02:18:48,672 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 02:18:48,672 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-07 02:18:48,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 02:18:48,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 02:18:48,673 INFO L87 Difference]: Start difference. First operand 69 states and 85 transitions. Second operand has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:18:48,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:18:48,854 INFO L93 Difference]: Finished difference Result 90 states and 109 transitions. [2021-11-07 02:18:48,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 02:18:48,854 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2021-11-07 02:18:48,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:18:48,856 INFO L225 Difference]: With dead ends: 90 [2021-11-07 02:18:48,856 INFO L226 Difference]: Without dead ends: 88 [2021-11-07 02:18:48,857 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-11-07 02:18:48,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2021-11-07 02:18:48,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 69. [2021-11-07 02:18:48,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 66 states have (on average 1.2878787878787878) internal successors, (85), 68 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:18:48,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 85 transitions. [2021-11-07 02:18:48,868 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 85 transitions. Word has length 18 [2021-11-07 02:18:48,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:18:48,872 INFO L470 AbstractCegarLoop]: Abstraction has 69 states and 85 transitions. [2021-11-07 02:18:48,873 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:18:48,873 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 85 transitions. [2021-11-07 02:18:48,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-11-07 02:18:48,880 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:18:48,880 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 02:18:48,881 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-07 02:18:48,881 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-07 02:18:48,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:18:48,884 INFO L85 PathProgramCache]: Analyzing trace with hash 540379326, now seen corresponding path program 1 times [2021-11-07 02:18:48,884 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-07 02:18:48,884 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1547764244] [2021-11-07 02:18:48,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:18:48,885 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 02:18:48,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:18:48,951 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:18:48,951 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-07 02:18:48,951 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1547764244] [2021-11-07 02:18:48,952 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1547764244] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 02:18:48,952 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:18:48,952 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 02:18:48,952 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [786748116] [2021-11-07 02:18:48,953 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 02:18:48,953 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-07 02:18:48,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 02:18:48,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 02:18:48,954 INFO L87 Difference]: Start difference. First operand 69 states and 85 transitions. Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:18:49,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:18:49,017 INFO L93 Difference]: Finished difference Result 82 states and 100 transitions. [2021-11-07 02:18:49,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 02:18:49,018 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2021-11-07 02:18:49,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:18:49,019 INFO L225 Difference]: With dead ends: 82 [2021-11-07 02:18:49,019 INFO L226 Difference]: Without dead ends: 80 [2021-11-07 02:18:49,024 INFO L786 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 [2021-11-07 02:18:49,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2021-11-07 02:18:49,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 71. [2021-11-07 02:18:49,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 68 states have (on average 1.2941176470588236) internal successors, (88), 70 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:18:49,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 88 transitions. [2021-11-07 02:18:49,044 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 88 transitions. Word has length 19 [2021-11-07 02:18:49,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:18:49,045 INFO L470 AbstractCegarLoop]: Abstraction has 71 states and 88 transitions. [2021-11-07 02:18:49,045 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:18:49,045 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 88 transitions. [2021-11-07 02:18:49,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-11-07 02:18:49,048 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:18:49,049 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 02:18:49,049 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-07 02:18:49,049 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-07 02:18:49,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:18:49,050 INFO L85 PathProgramCache]: Analyzing trace with hash -435769053, now seen corresponding path program 1 times [2021-11-07 02:18:49,050 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-07 02:18:49,052 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [112912230] [2021-11-07 02:18:49,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:18:49,053 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 02:18:49,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:18:49,118 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:18:49,119 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-07 02:18:49,119 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [112912230] [2021-11-07 02:18:49,119 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [112912230] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 02:18:49,119 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:18:49,120 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 02:18:49,120 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1474043184] [2021-11-07 02:18:49,120 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 02:18:49,121 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-07 02:18:49,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 02:18:49,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 02:18:49,122 INFO L87 Difference]: Start difference. First operand 71 states and 88 transitions. Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:18:49,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:18:49,144 INFO L93 Difference]: Finished difference Result 110 states and 133 transitions. [2021-11-07 02:18:49,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 02:18:49,145 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2021-11-07 02:18:49,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:18:49,146 INFO L225 Difference]: With dead ends: 110 [2021-11-07 02:18:49,146 INFO L226 Difference]: Without dead ends: 84 [2021-11-07 02:18:49,149 INFO L786 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 [2021-11-07 02:18:49,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2021-11-07 02:18:49,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 67. [2021-11-07 02:18:49,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 65 states have (on average 1.2615384615384615) internal successors, (82), 66 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:18:49,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 82 transitions. [2021-11-07 02:18:49,160 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 82 transitions. Word has length 20 [2021-11-07 02:18:49,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:18:49,162 INFO L470 AbstractCegarLoop]: Abstraction has 67 states and 82 transitions. [2021-11-07 02:18:49,162 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:18:49,162 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 82 transitions. [2021-11-07 02:18:49,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-11-07 02:18:49,164 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:18:49,164 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 02:18:49,165 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-07 02:18:49,165 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-07 02:18:49,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:18:49,170 INFO L85 PathProgramCache]: Analyzing trace with hash -1602735700, now seen corresponding path program 1 times [2021-11-07 02:18:49,171 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-07 02:18:49,173 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1114698479] [2021-11-07 02:18:49,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:18:49,174 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 02:18:49,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:18:49,240 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:18:49,241 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-07 02:18:49,241 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1114698479] [2021-11-07 02:18:49,241 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1114698479] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 02:18:49,241 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:18:49,241 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 02:18:49,242 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [525832486] [2021-11-07 02:18:49,242 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 02:18:49,242 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-07 02:18:49,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 02:18:49,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 02:18:49,246 INFO L87 Difference]: Start difference. First operand 67 states and 82 transitions. Second operand has 4 states, 4 states have (on average 5.25) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:18:49,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:18:49,340 INFO L93 Difference]: Finished difference Result 95 states and 115 transitions. [2021-11-07 02:18:49,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 02:18:49,340 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2021-11-07 02:18:49,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:18:49,341 INFO L225 Difference]: With dead ends: 95 [2021-11-07 02:18:49,342 INFO L226 Difference]: Without dead ends: 78 [2021-11-07 02:18:49,343 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 02:18:49,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2021-11-07 02:18:49,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 67. [2021-11-07 02:18:49,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 65 states have (on average 1.2153846153846153) internal successors, (79), 66 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:18:49,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 79 transitions. [2021-11-07 02:18:49,351 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 79 transitions. Word has length 21 [2021-11-07 02:18:49,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:18:49,352 INFO L470 AbstractCegarLoop]: Abstraction has 67 states and 79 transitions. [2021-11-07 02:18:49,352 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:18:49,352 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 79 transitions. [2021-11-07 02:18:49,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-11-07 02:18:49,353 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:18:49,353 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 02:18:49,353 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-07 02:18:49,353 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-07 02:18:49,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:18:49,354 INFO L85 PathProgramCache]: Analyzing trace with hash 1137118424, now seen corresponding path program 1 times [2021-11-07 02:18:49,354 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-07 02:18:49,354 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1090999852] [2021-11-07 02:18:49,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:18:49,355 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 02:18:49,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:18:49,420 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:18:49,421 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-07 02:18:49,421 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1090999852] [2021-11-07 02:18:49,428 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1090999852] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 02:18:49,428 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:18:49,428 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-07 02:18:49,428 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1639579014] [2021-11-07 02:18:49,429 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 02:18:49,429 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-07 02:18:49,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 02:18:49,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-07 02:18:49,430 INFO L87 Difference]: Start difference. First operand 67 states and 79 transitions. Second operand has 5 states, 5 states have (on average 4.4) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:18:49,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:18:49,477 INFO L93 Difference]: Finished difference Result 74 states and 89 transitions. [2021-11-07 02:18:49,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 02:18:49,478 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2021-11-07 02:18:49,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:18:49,479 INFO L225 Difference]: With dead ends: 74 [2021-11-07 02:18:49,479 INFO L226 Difference]: Without dead ends: 23 [2021-11-07 02:18:49,480 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-11-07 02:18:49,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2021-11-07 02:18:49,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2021-11-07 02:18:49,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 22 states have (on average 1.0) internal successors, (22), 22 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:18:49,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 22 transitions. [2021-11-07 02:18:49,483 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 22 transitions. Word has length 22 [2021-11-07 02:18:49,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:18:49,484 INFO L470 AbstractCegarLoop]: Abstraction has 23 states and 22 transitions. [2021-11-07 02:18:49,484 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:18:49,484 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 22 transitions. [2021-11-07 02:18:49,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-11-07 02:18:49,485 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:18:49,485 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 02:18:49,485 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-07 02:18:49,485 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-07 02:18:49,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:18:49,486 INFO L85 PathProgramCache]: Analyzing trace with hash 924417274, now seen corresponding path program 1 times [2021-11-07 02:18:49,486 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-07 02:18:49,486 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [682564379] [2021-11-07 02:18:49,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:18:49,487 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 02:18:49,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:18:49,557 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:18:49,557 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-07 02:18:49,558 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [682564379] [2021-11-07 02:18:49,558 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [682564379] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 02:18:49,558 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:18:49,558 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-07 02:18:49,558 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [997102584] [2021-11-07 02:18:49,559 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 02:18:49,559 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-07 02:18:49,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 02:18:49,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 02:18:49,560 INFO L87 Difference]: Start difference. First operand 23 states and 22 transitions. Second operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:18:49,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:18:49,577 INFO L93 Difference]: Finished difference Result 23 states and 22 transitions. [2021-11-07 02:18:49,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 02:18:49,578 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2021-11-07 02:18:49,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:18:49,579 INFO L225 Difference]: With dead ends: 23 [2021-11-07 02:18:49,579 INFO L226 Difference]: Without dead ends: 0 [2021-11-07 02:18:49,579 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 02:18:49,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-07 02:18:49,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-07 02:18:49,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:18:49,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-07 02:18:49,580 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 22 [2021-11-07 02:18:49,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:18:49,580 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-07 02:18:49,581 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:18:49,581 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-07 02:18:49,581 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-07 02:18:49,584 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-11-07 02:18:49,584 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-11-07 02:18:49,585 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION [2021-11-07 02:18:49,585 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION [2021-11-07 02:18:49,585 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION [2021-11-07 02:18:49,585 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION [2021-11-07 02:18:49,586 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION [2021-11-07 02:18:49,586 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION [2021-11-07 02:18:49,586 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION [2021-11-07 02:18:49,586 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION [2021-11-07 02:18:49,586 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION [2021-11-07 02:18:49,587 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION [2021-11-07 02:18:49,587 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION [2021-11-07 02:18:49,587 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION [2021-11-07 02:18:49,587 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION [2021-11-07 02:18:49,598 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION [2021-11-07 02:18:49,598 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-11-07 02:18:49,600 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-07 02:18:49,605 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:18:49,610 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:18:49,614 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:18:49,616 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:18:49,622 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:18:49,650 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:18:49,666 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:18:49,667 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:18:49,671 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:18:49,672 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:18:49,683 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:18:49,695 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:18:49,698 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:18:49,700 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:18:49,702 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:18:49,703 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:18:49,705 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:18:49,706 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:18:49,708 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:18:49,713 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:18:49,717 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:18:49,722 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:18:49,725 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:18:49,727 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:18:49,731 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:18:49,746 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:18:49,748 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:18:49,750 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:18:49,759 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:18:49,762 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:18:49,767 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:18:49,768 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:18:49,777 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:18:49,779 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:18:49,781 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:18:50,460 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 581) no Hoare annotation was computed. [2021-11-07 02:18:50,460 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION(line 581) no Hoare annotation was computed. [2021-11-07 02:18:50,460 INFO L853 garLoopResultBuilder]: At program point L102(lines 102 284) the Hoare annotation is: (and (<= 5 ~MPR1~0) (= ULTIMATE.start_main_~__cil_tmp8~0 1) (= ULTIMATE.start_main_~status~1 0) (= ~s~0 ~NP~0) (<= 3 ~SKIP1~0) (= ~NP~0 1) (= ~pended~0 0) (= ~compRegistered~0 0)) [2021-11-07 02:18:50,461 INFO L853 garLoopResultBuilder]: At program point L70(lines 323 368) the Hoare annotation is: (and (<= 5 ~MPR1~0) (= ULTIMATE.start_main_~status~1 0) (not (= ~pended~0 1)) (<= 3 ~SKIP1~0) (= ~NP~0 1) (= ~compRegistered~0 0) (not (= ~MPR3~0 ~s~0)) (not (= ~s~0 1))) [2021-11-07 02:18:50,461 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION(line 581) no Hoare annotation was computed. [2021-11-07 02:18:50,461 INFO L857 garLoopResultBuilder]: For program point L171(lines 171 183) no Hoare annotation was computed. [2021-11-07 02:18:50,461 INFO L853 garLoopResultBuilder]: At program point L105(lines 105 283) the Hoare annotation is: (and (<= 5 ~MPR1~0) (= ULTIMATE.start_main_~__cil_tmp8~0 1) (= ULTIMATE.start_main_~status~1 0) (= ~s~0 ~NP~0) (<= 3 ~SKIP1~0) (= ~NP~0 1) (= ~pended~0 0) (= ~compRegistered~0 0)) [2021-11-07 02:18:50,461 INFO L857 garLoopResultBuilder]: For program point L370(lines 370 374) no Hoare annotation was computed. [2021-11-07 02:18:50,462 INFO L853 garLoopResultBuilder]: At program point L536(lines 528 547) the Hoare annotation is: (and (= ~setEventCalled~0 1) (<= 5 ~MPR1~0) (not (= ~compRegistered~0 0)) (= ULTIMATE.start_main_~__cil_tmp8~0 1) (= ULTIMATE.start_main_~status~1 0) (= ~s~0 ~NP~0) (<= 3 ~SKIP1~0) (= ~NP~0 1) (= ~pended~0 0) (not (= ~MPR3~0 ~s~0))) [2021-11-07 02:18:50,462 INFO L853 garLoopResultBuilder]: At program point L471(lines 444 499) the Hoare annotation is: (and (= ~setEventCalled~0 1) (<= 5 ~MPR1~0) (not (= ~compRegistered~0 0)) (= ULTIMATE.start_main_~__cil_tmp8~0 1) (= ULTIMATE.start_main_~status~1 0) (<= 3 ~SKIP1~0) (= ~NP~0 1) (= ~pended~0 0) (= ~MPR1~0 ~s~0)) [2021-11-07 02:18:50,462 INFO L853 garLoopResultBuilder]: At program point L471-1(lines 444 499) the Hoare annotation is: (and (<= 5 ~MPR1~0) (= ULTIMATE.start_main_~__cil_tmp8~0 1) (= ULTIMATE.start_main_~status~1 0) (<= 3 ~SKIP1~0) (= ~NP~0 1) (= ~SKIP1~0 ~s~0) (= ~pended~0 0) (= ~compRegistered~0 0)) [2021-11-07 02:18:50,462 INFO L853 garLoopResultBuilder]: At program point L471-2(lines 444 499) the Hoare annotation is: (and (<= 5 ~MPR1~0) (= ULTIMATE.start_main_~__cil_tmp8~0 1) (= ULTIMATE.start_main_~status~1 0) (<= 3 ~SKIP1~0) (= ~NP~0 1) (= ~SKIP1~0 ~s~0) (= ~pended~0 0) (= ~compRegistered~0 0)) [2021-11-07 02:18:50,463 INFO L853 garLoopResultBuilder]: At program point L471-3(lines 444 499) the Hoare annotation is: (and (<= 5 ~MPR1~0) (= ULTIMATE.start_main_~__cil_tmp8~0 1) (= ULTIMATE.start_main_~status~1 0) (<= 3 ~SKIP1~0) (= ~NP~0 1) (= ~SKIP1~0 ~s~0) (= ~pended~0 0) (= ~compRegistered~0 0)) [2021-11-07 02:18:50,463 INFO L853 garLoopResultBuilder]: At program point L108(lines 108 282) the Hoare annotation is: (and (<= 5 ~MPR1~0) (= ULTIMATE.start_main_~__cil_tmp8~0 1) (= ULTIMATE.start_main_~status~1 0) (= ~s~0 ~NP~0) (<= 3 ~SKIP1~0) (= ~NP~0 1) (= ~pended~0 0) (= ~compRegistered~0 0)) [2021-11-07 02:18:50,463 INFO L857 garLoopResultBuilder]: For program point L505(lines 505 511) no Hoare annotation was computed. [2021-11-07 02:18:50,463 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 581) no Hoare annotation was computed. [2021-11-07 02:18:50,463 INFO L857 garLoopResultBuilder]: For program point L340-1(lines 339 349) no Hoare annotation was computed. [2021-11-07 02:18:50,463 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION(line 581) no Hoare annotation was computed. [2021-11-07 02:18:50,464 INFO L857 garLoopResultBuilder]: For program point L176(lines 176 182) no Hoare annotation was computed. [2021-11-07 02:18:50,464 INFO L853 garLoopResultBuilder]: At program point L176-1(lines 1 584) the Hoare annotation is: (and (<= 5 ~MPR1~0) (not (= ~compRegistered~0 0)) (= ULTIMATE.start_main_~__cil_tmp8~0 1) (= ULTIMATE.start_main_~status~1 0) (= ~s~0 ~NP~0) (<= 3 ~SKIP1~0) (= ~NP~0 1) (= ~pended~0 0)) [2021-11-07 02:18:50,464 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION(line 581) no Hoare annotation was computed. [2021-11-07 02:18:50,464 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION(line 581) no Hoare annotation was computed. [2021-11-07 02:18:50,464 INFO L857 garLoopResultBuilder]: For program point L541(lines 541 545) no Hoare annotation was computed. [2021-11-07 02:18:50,465 INFO L853 garLoopResultBuilder]: At program point L541-1(lines 541 545) the Hoare annotation is: (and (<= 5 ~MPR1~0) (not (= ~compRegistered~0 0)) (= ULTIMATE.start_main_~__cil_tmp8~0 1) (= ULTIMATE.start_main_~status~1 0) (= ~s~0 ~NP~0) (<= 3 ~SKIP1~0) (= ~NP~0 1) (= ~pended~0 0)) [2021-11-07 02:18:50,465 INFO L853 garLoopResultBuilder]: At program point L376(lines 369 418) the Hoare annotation is: (and (<= 5 ~MPR1~0) (= ULTIMATE.start_main_~__cil_tmp8~0 1) (<= 3 ~SKIP1~0) (= ~NP~0 1) (= ~pended~0 0)) [2021-11-07 02:18:50,466 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION(line 581) no Hoare annotation was computed. [2021-11-07 02:18:50,466 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION(line 581) no Hoare annotation was computed. [2021-11-07 02:18:50,466 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION(line 581) no Hoare annotation was computed. [2021-11-07 02:18:50,466 INFO L857 garLoopResultBuilder]: For program point L378(lines 378 382) no Hoare annotation was computed. [2021-11-07 02:18:50,467 INFO L853 garLoopResultBuilder]: At program point L445(lines 445 448) the Hoare annotation is: (and (<= 5 ~MPR1~0) (not (= ~compRegistered~0 0)) (= ULTIMATE.start_main_~__cil_tmp8~0 1) (= ULTIMATE.start_main_~status~1 0) (= ~s~0 ~NP~0) (<= 3 ~SKIP1~0) (= ~NP~0 1) (= ~pended~0 0)) [2021-11-07 02:18:50,467 INFO L853 garLoopResultBuilder]: At program point L445-1(lines 445 448) the Hoare annotation is: (and (= ~setEventCalled~0 1) (<= 5 ~MPR1~0) (not (= ~compRegistered~0 0)) (= ULTIMATE.start_main_~__cil_tmp8~0 1) (= ULTIMATE.start_main_~status~1 0) (<= 3 ~SKIP1~0) (= ~NP~0 1) (= ~pended~0 0) (= ~MPR1~0 ~s~0)) [2021-11-07 02:18:50,467 INFO L853 garLoopResultBuilder]: At program point L445-2(lines 445 448) the Hoare annotation is: (and (<= 5 ~MPR1~0) (= ULTIMATE.start_main_~__cil_tmp8~0 1) (= ULTIMATE.start_main_~status~1 0) (<= 3 ~SKIP1~0) (= ~NP~0 1) (= ~SKIP1~0 ~s~0) (= ~pended~0 0) (= ~compRegistered~0 0)) [2021-11-07 02:18:50,468 INFO L853 garLoopResultBuilder]: At program point L445-3(lines 445 448) the Hoare annotation is: (and (<= 5 ~MPR1~0) (= ULTIMATE.start_main_~__cil_tmp8~0 1) (= ULTIMATE.start_main_~status~1 0) (<= 3 ~SKIP1~0) (= ~NP~0 1) (= ~SKIP1~0 ~s~0) (= ~pended~0 0) (= ~compRegistered~0 0)) [2021-11-07 02:18:50,468 INFO L853 garLoopResultBuilder]: At program point L445-4(lines 445 448) the Hoare annotation is: (and (<= 5 ~MPR1~0) (= ULTIMATE.start_main_~__cil_tmp8~0 1) (= ULTIMATE.start_main_~status~1 0) (<= 3 ~SKIP1~0) (= ~NP~0 1) (= ~SKIP1~0 ~s~0) (= ~pended~0 0) (= ~compRegistered~0 0)) [2021-11-07 02:18:50,468 INFO L853 garLoopResultBuilder]: At program point L445-5(lines 445 448) the Hoare annotation is: (and (<= 5 ~MPR1~0) (= ULTIMATE.start_main_~__cil_tmp8~0 1) (= ULTIMATE.start_main_~status~1 0) (<= 3 ~SKIP1~0) (= ~NP~0 1) (= ~SKIP1~0 ~s~0) (= ~pended~0 0) (= ~compRegistered~0 0)) [2021-11-07 02:18:50,468 INFO L853 garLoopResultBuilder]: At program point L445-6(lines 445 448) the Hoare annotation is: (and (<= 5 ~MPR1~0) (= ULTIMATE.start_main_~__cil_tmp8~0 1) (= ULTIMATE.start_main_~status~1 0) (<= 3 ~SKIP1~0) (= ~NP~0 1) (= ~SKIP1~0 ~s~0) (= ~pended~0 0) (= ~compRegistered~0 0)) [2021-11-07 02:18:50,469 INFO L853 garLoopResultBuilder]: At program point L445-7(lines 445 448) the Hoare annotation is: (and (<= 5 ~MPR1~0) (= ULTIMATE.start_main_~__cil_tmp8~0 1) (= ULTIMATE.start_main_~status~1 0) (<= 3 ~SKIP1~0) (= ~NP~0 1) (= ~SKIP1~0 ~s~0) (= ~pended~0 0) (= ~compRegistered~0 0)) [2021-11-07 02:18:50,469 INFO L857 garLoopResultBuilder]: For program point L479(lines 479 496) no Hoare annotation was computed. [2021-11-07 02:18:50,469 INFO L857 garLoopResultBuilder]: For program point L479-1(lines 479 496) no Hoare annotation was computed. [2021-11-07 02:18:50,469 INFO L857 garLoopResultBuilder]: For program point L479-2(lines 479 496) no Hoare annotation was computed. [2021-11-07 02:18:50,469 INFO L857 garLoopResultBuilder]: For program point L479-3(lines 479 496) no Hoare annotation was computed. [2021-11-07 02:18:50,470 INFO L857 garLoopResultBuilder]: For program point L216(lines 216 222) no Hoare annotation was computed. [2021-11-07 02:18:50,470 INFO L857 garLoopResultBuilder]: For program point L581(line 581) no Hoare annotation was computed. [2021-11-07 02:18:50,470 INFO L857 garLoopResultBuilder]: For program point L581-1(line 581) no Hoare annotation was computed. [2021-11-07 02:18:50,470 INFO L857 garLoopResultBuilder]: For program point L581-2(line 581) no Hoare annotation was computed. [2021-11-07 02:18:50,470 INFO L857 garLoopResultBuilder]: For program point L581-3(line 581) no Hoare annotation was computed. [2021-11-07 02:18:50,471 INFO L857 garLoopResultBuilder]: For program point L581-4(line 581) no Hoare annotation was computed. [2021-11-07 02:18:50,471 INFO L857 garLoopResultBuilder]: For program point L581-5(line 581) no Hoare annotation was computed. [2021-11-07 02:18:50,471 INFO L857 garLoopResultBuilder]: For program point L581-6(line 581) no Hoare annotation was computed. [2021-11-07 02:18:50,471 INFO L857 garLoopResultBuilder]: For program point L581-7(line 581) no Hoare annotation was computed. [2021-11-07 02:18:50,471 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-11-07 02:18:50,471 INFO L857 garLoopResultBuilder]: For program point L581-8(line 581) no Hoare annotation was computed. [2021-11-07 02:18:50,472 INFO L857 garLoopResultBuilder]: For program point L581-9(line 581) no Hoare annotation was computed. [2021-11-07 02:18:50,472 INFO L857 garLoopResultBuilder]: For program point L581-10(line 581) no Hoare annotation was computed. [2021-11-07 02:18:50,472 INFO L857 garLoopResultBuilder]: For program point L581-11(line 581) no Hoare annotation was computed. [2021-11-07 02:18:50,472 INFO L857 garLoopResultBuilder]: For program point L581-12(line 581) no Hoare annotation was computed. [2021-11-07 02:18:50,472 INFO L857 garLoopResultBuilder]: For program point L581-13(line 581) no Hoare annotation was computed. [2021-11-07 02:18:50,473 INFO L857 garLoopResultBuilder]: For program point L581-14(line 581) no Hoare annotation was computed. [2021-11-07 02:18:50,473 INFO L857 garLoopResultBuilder]: For program point L581-15(line 581) no Hoare annotation was computed. [2021-11-07 02:18:50,473 INFO L853 garLoopResultBuilder]: At program point L582-3(lines 1 584) the Hoare annotation is: (let ((.cse0 (= ~s~0 ~NP~0))) (and (or .cse0 (= 259 ULTIMATE.start_IofCallDriver_~returnVal2~0)) (= ~setEventCalled~0 1) (<= 5 ~MPR1~0) (not (= ~compRegistered~0 0)) (= ULTIMATE.start_main_~__cil_tmp8~0 1) (= ULTIMATE.start_main_~status~1 0) (or .cse0 (= ~MPR3~0 ~s~0)) (<= 3 ~SKIP1~0) (= ~NP~0 1) (= ~pended~0 0))) [2021-11-07 02:18:50,473 INFO L853 garLoopResultBuilder]: At program point L582-6(lines 1 584) the Hoare annotation is: (and (<= 5 ~MPR1~0) (= ULTIMATE.start_main_~__cil_tmp8~0 1) (= ULTIMATE.start_main_~status~1 0) (<= 3 ~SKIP1~0) (= ~NP~0 1) (= ~SKIP1~0 ~s~0) (= ~pended~0 0) (= ~compRegistered~0 0)) [2021-11-07 02:18:50,474 INFO L853 garLoopResultBuilder]: At program point L384(lines 377 417) the Hoare annotation is: (and (<= 5 ~MPR1~0) (= ULTIMATE.start_main_~__cil_tmp8~0 1) (<= 3 ~SKIP1~0) (= ~NP~0 1) (= ~pended~0 0)) [2021-11-07 02:18:50,474 INFO L853 garLoopResultBuilder]: At program point L582-8(lines 1 584) the Hoare annotation is: (and (<= 5 ~MPR1~0) (= ULTIMATE.start_main_~__cil_tmp8~0 1) (= ULTIMATE.start_main_~status~1 0) (<= 3 ~SKIP1~0) (= ~NP~0 1) (= ~pended~0 0) (= ~compRegistered~0 0)) [2021-11-07 02:18:50,474 INFO L853 garLoopResultBuilder]: At program point L582-9(lines 1 584) the Hoare annotation is: (and (<= 5 ~MPR1~0) (= ULTIMATE.start_main_~__cil_tmp8~0 1) (= ULTIMATE.start_main_~status~1 0) (<= 3 ~SKIP1~0) (= ~NP~0 1) (= ~SKIP1~0 ~s~0) (= ~pended~0 0) (= ~compRegistered~0 0)) [2021-11-07 02:18:50,475 INFO L853 garLoopResultBuilder]: At program point L582-11(lines 1 584) the Hoare annotation is: (and (<= 5 ~MPR1~0) (= ULTIMATE.start_main_~__cil_tmp8~0 1) (= ULTIMATE.start_main_~status~1 0) (<= 3 ~SKIP1~0) (= ~NP~0 1) (= ~pended~0 0) (= ~compRegistered~0 0)) [2021-11-07 02:18:50,475 INFO L853 garLoopResultBuilder]: At program point L582-12(lines 1 584) the Hoare annotation is: (and (<= 5 ~MPR1~0) (= ULTIMATE.start_main_~__cil_tmp8~0 1) (= ULTIMATE.start_main_~status~1 0) (<= 3 ~SKIP1~0) (= ~NP~0 1) (= ~SKIP1~0 ~s~0) (= ~pended~0 0) (= ~compRegistered~0 0)) [2021-11-07 02:18:50,475 INFO L853 garLoopResultBuilder]: At program point L582-14(lines 1 584) the Hoare annotation is: (and (<= 5 ~MPR1~0) (= ULTIMATE.start_main_~__cil_tmp8~0 1) (= ULTIMATE.start_main_~status~1 0) (<= 3 ~SKIP1~0) (= ~NP~0 1) (= ~pended~0 0) (= ~compRegistered~0 0)) [2021-11-07 02:18:50,475 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION(line 581) no Hoare annotation was computed. [2021-11-07 02:18:50,476 INFO L860 garLoopResultBuilder]: At program point L385(lines 369 418) the Hoare annotation is: true [2021-11-07 02:18:50,476 INFO L853 garLoopResultBuilder]: At program point L352(lines 352 367) the Hoare annotation is: (and (<= 5 ~MPR1~0) (= ULTIMATE.start_main_~__cil_tmp8~0 1) (= ULTIMATE.start_main_~status~1 0) (= ~s~0 ~NP~0) (<= 3 ~SKIP1~0) (= ~NP~0 1) (= ~pended~0 0) (= ~compRegistered~0 0)) [2021-11-07 02:18:50,476 INFO L857 garLoopResultBuilder]: For program point L386(lines 386 415) no Hoare annotation was computed. [2021-11-07 02:18:50,476 INFO L860 garLoopResultBuilder]: At program point L420(lines 288 422) the Hoare annotation is: true [2021-11-07 02:18:50,476 INFO L857 garLoopResultBuilder]: For program point L387(lines 387 414) no Hoare annotation was computed. [2021-11-07 02:18:50,477 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION(line 581) no Hoare annotation was computed. [2021-11-07 02:18:50,477 INFO L857 garLoopResultBuilder]: For program point L388(lines 388 394) no Hoare annotation was computed. [2021-11-07 02:18:50,477 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-11-07 02:18:50,477 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION(line 581) no Hoare annotation was computed. [2021-11-07 02:18:50,477 INFO L857 garLoopResultBuilder]: For program point L488(lines 488 495) no Hoare annotation was computed. [2021-11-07 02:18:50,478 INFO L857 garLoopResultBuilder]: For program point L488-2(lines 488 495) no Hoare annotation was computed. [2021-11-07 02:18:50,478 INFO L857 garLoopResultBuilder]: For program point L389(lines 389 391) no Hoare annotation was computed. [2021-11-07 02:18:50,478 INFO L857 garLoopResultBuilder]: For program point L488-4(lines 488 495) no Hoare annotation was computed. [2021-11-07 02:18:50,478 INFO L853 garLoopResultBuilder]: At program point L323(lines 297 421) the Hoare annotation is: (and (<= 5 ~MPR1~0) (= ULTIMATE.start_main_~__cil_tmp8~0 1) (<= 3 ~SKIP1~0) (= ~NP~0 1) (= ~pended~0 0)) [2021-11-07 02:18:50,479 INFO L857 garLoopResultBuilder]: For program point L488-6(lines 488 495) no Hoare annotation was computed. [2021-11-07 02:18:50,479 INFO L857 garLoopResultBuilder]: For program point L192(lines 192 198) no Hoare annotation was computed. [2021-11-07 02:18:50,479 INFO L857 garLoopResultBuilder]: For program point L192-2(lines 166 261) no Hoare annotation was computed. [2021-11-07 02:18:50,479 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION(line 581) no Hoare annotation was computed. [2021-11-07 02:18:50,479 INFO L857 garLoopResultBuilder]: For program point L427(lines 427 433) no Hoare annotation was computed. [2021-11-07 02:18:50,480 INFO L857 garLoopResultBuilder]: For program point L427-2(lines 427 433) no Hoare annotation was computed. [2021-11-07 02:18:50,480 INFO L857 garLoopResultBuilder]: For program point L427-4(lines 427 433) no Hoare annotation was computed. [2021-11-07 02:18:50,480 INFO L853 garLoopResultBuilder]: At program point L262(lines 166 263) the Hoare annotation is: (and (<= 5 ~MPR1~0) (= ULTIMATE.start_main_~__cil_tmp8~0 1) (= ULTIMATE.start_main_~status~1 0) (<= 3 ~SKIP1~0) (= ~NP~0 1) (= ~pended~0 0)) [2021-11-07 02:18:50,480 INFO L857 garLoopResultBuilder]: For program point L427-6(lines 427 433) no Hoare annotation was computed. [2021-11-07 02:18:50,481 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 581) no Hoare annotation was computed. [2021-11-07 02:18:50,481 INFO L857 garLoopResultBuilder]: For program point L528(lines 528 547) no Hoare annotation was computed. [2021-11-07 02:18:50,481 INFO L853 garLoopResultBuilder]: At program point L396(lines 387 414) the Hoare annotation is: (and (<= 5 ~MPR1~0) (= ULTIMATE.start_main_~__cil_tmp8~0 1) (<= 3 ~SKIP1~0) (= ~NP~0 1) (= ~pended~0 0)) [2021-11-07 02:18:50,481 INFO L853 garLoopResultBuilder]: At program point L165(lines 111 281) the Hoare annotation is: (and (<= 5 ~MPR1~0) (= ULTIMATE.start_main_~__cil_tmp8~0 1) (= ULTIMATE.start_main_~status~1 0) (= ~s~0 ~NP~0) (<= 3 ~SKIP1~0) (= ~NP~0 1) (= ~pended~0 0) (= ~compRegistered~0 0)) [2021-11-07 02:18:50,482 INFO L857 garLoopResultBuilder]: For program point L529(lines 529 534) no Hoare annotation was computed. [2021-11-07 02:18:50,482 INFO L857 garLoopResultBuilder]: For program point L232(lines 232 238) no Hoare annotation was computed. [2021-11-07 02:18:50,482 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION(line 581) no Hoare annotation was computed. [2021-11-07 02:18:50,482 INFO L857 garLoopResultBuilder]: For program point L398(lines 398 402) no Hoare annotation was computed. [2021-11-07 02:18:50,486 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 02:18:50,488 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-07 02:18:50,522 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 02:18:50 BoogieIcfgContainer [2021-11-07 02:18:50,522 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-07 02:18:50,523 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-07 02:18:50,523 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-07 02:18:50,524 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-07 02:18:50,524 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 02:18:46" (3/4) ... [2021-11-07 02:18:50,528 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-07 02:18:50,553 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 87 nodes and edges [2021-11-07 02:18:50,555 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2021-11-07 02:18:50,557 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-11-07 02:18:50,559 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-07 02:18:50,712 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9701415b-2436-4dfa-ab4b-b8230276040c/bin/utaipan-UUZaoUuFF8/witness.graphml [2021-11-07 02:18:50,712 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-07 02:18:50,716 INFO L168 Benchmark]: Toolchain (without parser) took 6729.76 ms. Allocated memory was 98.6 MB in the beginning and 148.9 MB in the end (delta: 50.3 MB). Free memory was 65.0 MB in the beginning and 55.3 MB in the end (delta: 9.6 MB). Peak memory consumption was 60.8 MB. Max. memory is 16.1 GB. [2021-11-07 02:18:50,717 INFO L168 Benchmark]: CDTParser took 0.33 ms. Allocated memory is still 98.6 MB. Free memory is still 51.9 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 02:18:50,717 INFO L168 Benchmark]: CACSL2BoogieTranslator took 527.31 ms. Allocated memory is still 98.6 MB. Free memory was 64.8 MB in the beginning and 70.7 MB in the end (delta: -6.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-11-07 02:18:50,718 INFO L168 Benchmark]: Boogie Procedure Inliner took 111.15 ms. Allocated memory is still 98.6 MB. Free memory was 70.7 MB in the beginning and 67.2 MB in the end (delta: 3.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-11-07 02:18:50,718 INFO L168 Benchmark]: Boogie Preprocessor took 101.35 ms. Allocated memory is still 98.6 MB. Free memory was 67.2 MB in the beginning and 64.8 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-07 02:18:50,719 INFO L168 Benchmark]: RCFGBuilder took 1824.24 ms. Allocated memory was 98.6 MB in the beginning and 123.7 MB in the end (delta: 25.2 MB). Free memory was 64.8 MB in the beginning and 89.5 MB in the end (delta: -24.7 MB). Peak memory consumption was 33.3 MB. Max. memory is 16.1 GB. [2021-11-07 02:18:50,719 INFO L168 Benchmark]: TraceAbstraction took 3968.23 ms. Allocated memory was 123.7 MB in the beginning and 148.9 MB in the end (delta: 25.2 MB). Free memory was 89.5 MB in the beginning and 69.0 MB in the end (delta: 20.5 MB). Peak memory consumption was 47.6 MB. Max. memory is 16.1 GB. [2021-11-07 02:18:50,720 INFO L168 Benchmark]: Witness Printer took 189.38 ms. Allocated memory is still 148.9 MB. Free memory was 69.0 MB in the beginning and 55.3 MB in the end (delta: 13.6 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2021-11-07 02:18:50,722 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33 ms. Allocated memory is still 98.6 MB. Free memory is still 51.9 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 527.31 ms. Allocated memory is still 98.6 MB. Free memory was 64.8 MB in the beginning and 70.7 MB in the end (delta: -6.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 111.15 ms. Allocated memory is still 98.6 MB. Free memory was 70.7 MB in the beginning and 67.2 MB in the end (delta: 3.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 101.35 ms. Allocated memory is still 98.6 MB. Free memory was 67.2 MB in the beginning and 64.8 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1824.24 ms. Allocated memory was 98.6 MB in the beginning and 123.7 MB in the end (delta: 25.2 MB). Free memory was 64.8 MB in the beginning and 89.5 MB in the end (delta: -24.7 MB). Peak memory consumption was 33.3 MB. Max. memory is 16.1 GB. * TraceAbstraction took 3968.23 ms. Allocated memory was 123.7 MB in the beginning and 148.9 MB in the end (delta: 25.2 MB). Free memory was 89.5 MB in the beginning and 69.0 MB in the end (delta: 20.5 MB). Peak memory consumption was 47.6 MB. Max. memory is 16.1 GB. * Witness Printer took 189.38 ms. Allocated memory is still 148.9 MB. Free memory was 69.0 MB in the beginning and 55.3 MB in the end (delta: 13.6 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 581]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 581]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 581]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 581]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 581]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 581]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 581]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 581]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 581]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 581]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 581]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 581]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 581]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 581]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 581]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 581]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 99 locations, 16 error locations. Started 1 CEGAR loops. OverallTime: 3.8s, OverallIterations: 13, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.8s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 1006 SDtfs, 782 SDslu, 525 SDs, 0 SdLazy, 522 SolverSat, 61 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 54 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=99occurred in iteration=0, InterpolantAutomatonStates: 50, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 13 MinimizatonAttempts, 111 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 35 LocationsWithAnnotation, 35 PreInvPairs, 67 NumberOfFragments, 813 HoareAnnotationTreeSize, 35 FomulaSimplifications, 2408 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 35 FomulaSimplificationsInter, 56 FormulaSimplificationTreeSizeReductionInter, 0.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 209 NumberOfCodeBlocks, 209 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 196 ConstructedInterpolants, 0 QuantifiedInterpolants, 501 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 13 InterpolantComputations, 13 PerfectInterpolantSequences, 0/0 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 - AllSpecificationsHoldResult: All specifications hold 16 specifications checked. All of them hold - InvariantResult [Line: 445]: Loop Invariant Derived loop invariant: ((((((5 <= MPR1 && __cil_tmp8 == 1) && status == 0) && 3 <= SKIP1) && NP == 1) && SKIP1 == s) && pended == 0) && compRegistered == 0 - InvariantResult [Line: 352]: Loop Invariant Derived loop invariant: ((((((5 <= MPR1 && __cil_tmp8 == 1) && status == 0) && s == NP) && 3 <= SKIP1) && NP == 1) && pended == 0) && compRegistered == 0 - InvariantResult [Line: 297]: Loop Invariant Derived loop invariant: (((5 <= MPR1 && __cil_tmp8 == 1) && 3 <= SKIP1) && NP == 1) && pended == 0 - InvariantResult [Line: 444]: Loop Invariant Derived loop invariant: ((((((5 <= MPR1 && __cil_tmp8 == 1) && status == 0) && 3 <= SKIP1) && NP == 1) && SKIP1 == s) && pended == 0) && compRegistered == 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: (((((((((s == NP || 259 == returnVal2) && setEventCalled == 1) && 5 <= MPR1) && !(compRegistered == 0)) && __cil_tmp8 == 1) && status == 0) && (s == NP || MPR3 == s)) && 3 <= SKIP1) && NP == 1) && pended == 0 - InvariantResult [Line: 541]: Loop Invariant Derived loop invariant: ((((((5 <= MPR1 && !(compRegistered == 0)) && __cil_tmp8 == 1) && status == 0) && s == NP) && 3 <= SKIP1) && NP == 1) && pended == 0 - InvariantResult [Line: 288]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 445]: Loop Invariant Derived loop invariant: ((((((5 <= MPR1 && !(compRegistered == 0)) && __cil_tmp8 == 1) && status == 0) && s == NP) && 3 <= SKIP1) && NP == 1) && pended == 0 - InvariantResult [Line: 444]: Loop Invariant Derived loop invariant: ((((((5 <= MPR1 && __cil_tmp8 == 1) && status == 0) && 3 <= SKIP1) && NP == 1) && SKIP1 == s) && pended == 0) && compRegistered == 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: (((((5 <= MPR1 && __cil_tmp8 == 1) && status == 0) && 3 <= SKIP1) && NP == 1) && pended == 0) && compRegistered == 0 - InvariantResult [Line: 369]: Loop Invariant Derived loop invariant: (((5 <= MPR1 && __cil_tmp8 == 1) && 3 <= SKIP1) && NP == 1) && pended == 0 - InvariantResult [Line: 445]: Loop Invariant Derived loop invariant: (((((((setEventCalled == 1 && 5 <= MPR1) && !(compRegistered == 0)) && __cil_tmp8 == 1) && status == 0) && 3 <= SKIP1) && NP == 1) && pended == 0) && MPR1 == s - InvariantResult [Line: 111]: Loop Invariant Derived loop invariant: ((((((5 <= MPR1 && __cil_tmp8 == 1) && status == 0) && s == NP) && 3 <= SKIP1) && NP == 1) && pended == 0) && compRegistered == 0 - InvariantResult [Line: 102]: Loop Invariant Derived loop invariant: ((((((5 <= MPR1 && __cil_tmp8 == 1) && status == 0) && s == NP) && 3 <= SKIP1) && NP == 1) && pended == 0) && compRegistered == 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: ((((((5 <= MPR1 && __cil_tmp8 == 1) && status == 0) && 3 <= SKIP1) && NP == 1) && SKIP1 == s) && pended == 0) && compRegistered == 0 - InvariantResult [Line: 444]: Loop Invariant Derived loop invariant: ((((((5 <= MPR1 && __cil_tmp8 == 1) && status == 0) && 3 <= SKIP1) && NP == 1) && SKIP1 == s) && pended == 0) && compRegistered == 0 - InvariantResult [Line: 369]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: ((((((5 <= MPR1 && __cil_tmp8 == 1) && status == 0) && 3 <= SKIP1) && NP == 1) && SKIP1 == s) && pended == 0) && compRegistered == 0 - InvariantResult [Line: 445]: Loop Invariant Derived loop invariant: ((((((5 <= MPR1 && __cil_tmp8 == 1) && status == 0) && 3 <= SKIP1) && NP == 1) && SKIP1 == s) && pended == 0) && compRegistered == 0 - InvariantResult [Line: 105]: Loop Invariant Derived loop invariant: ((((((5 <= MPR1 && __cil_tmp8 == 1) && status == 0) && s == NP) && 3 <= SKIP1) && NP == 1) && pended == 0) && compRegistered == 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: (((((5 <= MPR1 && __cil_tmp8 == 1) && status == 0) && 3 <= SKIP1) && NP == 1) && pended == 0) && compRegistered == 0 - InvariantResult [Line: 445]: Loop Invariant Derived loop invariant: ((((((5 <= MPR1 && __cil_tmp8 == 1) && status == 0) && 3 <= SKIP1) && NP == 1) && SKIP1 == s) && pended == 0) && compRegistered == 0 - InvariantResult [Line: 108]: Loop Invariant Derived loop invariant: ((((((5 <= MPR1 && __cil_tmp8 == 1) && status == 0) && s == NP) && 3 <= SKIP1) && NP == 1) && pended == 0) && compRegistered == 0 - InvariantResult [Line: 387]: Loop Invariant Derived loop invariant: (((5 <= MPR1 && __cil_tmp8 == 1) && 3 <= SKIP1) && NP == 1) && pended == 0 - InvariantResult [Line: 445]: Loop Invariant Derived loop invariant: ((((((5 <= MPR1 && __cil_tmp8 == 1) && status == 0) && 3 <= SKIP1) && NP == 1) && SKIP1 == s) && pended == 0) && compRegistered == 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: ((((((5 <= MPR1 && !(compRegistered == 0)) && __cil_tmp8 == 1) && status == 0) && s == NP) && 3 <= SKIP1) && NP == 1) && pended == 0 - InvariantResult [Line: 444]: Loop Invariant Derived loop invariant: (((((((setEventCalled == 1 && 5 <= MPR1) && !(compRegistered == 0)) && __cil_tmp8 == 1) && status == 0) && 3 <= SKIP1) && NP == 1) && pended == 0) && MPR1 == s - InvariantResult [Line: 166]: Loop Invariant Derived loop invariant: ((((5 <= MPR1 && __cil_tmp8 == 1) && status == 0) && 3 <= SKIP1) && NP == 1) && pended == 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: (((((5 <= MPR1 && __cil_tmp8 == 1) && status == 0) && 3 <= SKIP1) && NP == 1) && pended == 0) && compRegistered == 0 - InvariantResult [Line: 445]: Loop Invariant Derived loop invariant: ((((((5 <= MPR1 && __cil_tmp8 == 1) && status == 0) && 3 <= SKIP1) && NP == 1) && SKIP1 == s) && pended == 0) && compRegistered == 0 - InvariantResult [Line: 377]: Loop Invariant Derived loop invariant: (((5 <= MPR1 && __cil_tmp8 == 1) && 3 <= SKIP1) && NP == 1) && pended == 0 - InvariantResult [Line: 445]: Loop Invariant Derived loop invariant: ((((((5 <= MPR1 && __cil_tmp8 == 1) && status == 0) && 3 <= SKIP1) && NP == 1) && SKIP1 == s) && pended == 0) && compRegistered == 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: ((((((5 <= MPR1 && __cil_tmp8 == 1) && status == 0) && 3 <= SKIP1) && NP == 1) && SKIP1 == s) && pended == 0) && compRegistered == 0 - InvariantResult [Line: 528]: Loop Invariant Derived loop invariant: ((((((((setEventCalled == 1 && 5 <= MPR1) && !(compRegistered == 0)) && __cil_tmp8 == 1) && status == 0) && s == NP) && 3 <= SKIP1) && NP == 1) && pended == 0) && !(MPR3 == s) - InvariantResult [Line: 323]: Loop Invariant Derived loop invariant: ((((((5 <= MPR1 && status == 0) && !(pended == 1)) && 3 <= SKIP1) && NP == 1) && compRegistered == 0) && !(MPR3 == s)) && !(s == 1) RESULT: Ultimate proved your program to be correct! [2021-11-07 02:18:50,802 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9701415b-2436-4dfa-ab4b-b8230276040c/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE