./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/bitvector/s3_srvr_3a.BV.c.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6a47aea7 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e25cd1c-cbd2-411f-86d7-46f024ebae84/bin/utaipan-fb15Y9Yzbl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e25cd1c-cbd2-411f-86d7-46f024ebae84/bin/utaipan-fb15Y9Yzbl/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e25cd1c-cbd2-411f-86d7-46f024ebae84/bin/utaipan-fb15Y9Yzbl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e25cd1c-cbd2-411f-86d7-46f024ebae84/bin/utaipan-fb15Y9Yzbl/config/TaipanReach.xml -i ../../sv-benchmarks/c/bitvector/s3_srvr_3a.BV.c.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e25cd1c-cbd2-411f-86d7-46f024ebae84/bin/utaipan-fb15Y9Yzbl/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e25cd1c-cbd2-411f-86d7-46f024ebae84/bin/utaipan-fb15Y9Yzbl --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 a8373cb8fe582bc9cb45d9609c89b33bf31b030c114c7e7fdfee851d52974fb9 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 17:12:46,328 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 17:12:46,330 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 17:12:46,370 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 17:12:46,371 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 17:12:46,372 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 17:12:46,375 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 17:12:46,377 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 17:12:46,380 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 17:12:46,381 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 17:12:46,383 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 17:12:46,385 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 17:12:46,385 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 17:12:46,387 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 17:12:46,389 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 17:12:46,390 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 17:12:46,392 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 17:12:46,393 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 17:12:46,396 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 17:12:46,399 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 17:12:46,401 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 17:12:46,403 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 17:12:46,405 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 17:12:46,406 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 17:12:46,411 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 17:12:46,413 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 17:12:46,414 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 17:12:46,415 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 17:12:46,416 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 17:12:46,418 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 17:12:46,418 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 17:12:46,419 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 17:12:46,420 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 17:12:46,422 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 17:12:46,423 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 17:12:46,424 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 17:12:46,425 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 17:12:46,425 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 17:12:46,426 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 17:12:46,427 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 17:12:46,428 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 17:12:46,432 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e25cd1c-cbd2-411f-86d7-46f024ebae84/bin/utaipan-fb15Y9Yzbl/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-23 17:12:46,489 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 17:12:46,489 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 17:12:46,490 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 17:12:46,490 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 17:12:46,491 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 17:12:46,495 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 17:12:46,496 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 17:12:46,496 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 17:12:46,496 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 17:12:46,496 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-23 17:12:46,497 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 17:12:46,497 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 17:12:46,497 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-23 17:12:46,497 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-23 17:12:46,497 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 17:12:46,498 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-23 17:12:46,498 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-23 17:12:46,498 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-23 17:12:46,499 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 17:12:46,499 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 17:12:46,499 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 17:12:46,500 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 17:12:46,500 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 17:12:46,500 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 17:12:46,500 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 17:12:46,501 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 17:12:46,501 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 17:12:46,501 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 17:12:46,501 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 17:12:46,501 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 17:12:46,502 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 17:12:46,502 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 17:12:46,502 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:12:46,505 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 17:12:46,505 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 17:12:46,506 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 17:12:46,506 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-23 17:12:46,506 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 17:12:46,506 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 17:12:46,507 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 17:12:46,507 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 17:12:46,507 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_4e25cd1c-cbd2-411f-86d7-46f024ebae84/bin/utaipan-fb15Y9Yzbl/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e25cd1c-cbd2-411f-86d7-46f024ebae84/bin/utaipan-fb15Y9Yzbl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a8373cb8fe582bc9cb45d9609c89b33bf31b030c114c7e7fdfee851d52974fb9 [2021-11-23 17:12:46,793 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 17:12:46,820 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 17:12:46,823 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 17:12:46,824 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 17:12:46,825 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 17:12:46,827 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e25cd1c-cbd2-411f-86d7-46f024ebae84/bin/utaipan-fb15Y9Yzbl/../../sv-benchmarks/c/bitvector/s3_srvr_3a.BV.c.cil.c [2021-11-23 17:12:46,889 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e25cd1c-cbd2-411f-86d7-46f024ebae84/bin/utaipan-fb15Y9Yzbl/data/b6b10c767/c2d6fb24e0b24d3fa84e8d5003b0a0da/FLAG9b57852b7 [2021-11-23 17:12:47,459 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 17:12:47,460 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e25cd1c-cbd2-411f-86d7-46f024ebae84/sv-benchmarks/c/bitvector/s3_srvr_3a.BV.c.cil.c [2021-11-23 17:12:47,485 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e25cd1c-cbd2-411f-86d7-46f024ebae84/bin/utaipan-fb15Y9Yzbl/data/b6b10c767/c2d6fb24e0b24d3fa84e8d5003b0a0da/FLAG9b57852b7 [2021-11-23 17:12:47,761 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e25cd1c-cbd2-411f-86d7-46f024ebae84/bin/utaipan-fb15Y9Yzbl/data/b6b10c767/c2d6fb24e0b24d3fa84e8d5003b0a0da [2021-11-23 17:12:47,764 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 17:12:47,766 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 17:12:47,767 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 17:12:47,768 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 17:12:47,773 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 17:12:47,774 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:12:47" (1/1) ... [2021-11-23 17:12:47,775 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@68a432b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:12:47, skipping insertion in model container [2021-11-23 17:12:47,776 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:12:47" (1/1) ... [2021-11-23 17:12:47,793 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 17:12:47,848 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 17:12:48,064 WARN L230 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_4e25cd1c-cbd2-411f-86d7-46f024ebae84/sv-benchmarks/c/bitvector/s3_srvr_3a.BV.c.cil.c[44494,44507] [2021-11-23 17:12:48,072 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:12:48,081 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 17:12:48,159 WARN L230 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_4e25cd1c-cbd2-411f-86d7-46f024ebae84/sv-benchmarks/c/bitvector/s3_srvr_3a.BV.c.cil.c[44494,44507] [2021-11-23 17:12:48,163 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:12:48,178 INFO L208 MainTranslator]: Completed translation [2021-11-23 17:12:48,178 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:12:48 WrapperNode [2021-11-23 17:12:48,179 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 17:12:48,180 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 17:12:48,180 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 17:12:48,180 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 17:12:48,190 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:12:48" (1/1) ... [2021-11-23 17:12:48,202 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:12:48" (1/1) ... [2021-11-23 17:12:48,256 INFO L137 Inliner]: procedures = 15, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 519 [2021-11-23 17:12:48,257 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 17:12:48,258 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 17:12:48,260 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 17:12:48,260 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 17:12:48,271 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:12:48" (1/1) ... [2021-11-23 17:12:48,271 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:12:48" (1/1) ... [2021-11-23 17:12:48,278 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:12:48" (1/1) ... [2021-11-23 17:12:48,294 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:12:48" (1/1) ... [2021-11-23 17:12:48,305 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:12:48" (1/1) ... [2021-11-23 17:12:48,329 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:12:48" (1/1) ... [2021-11-23 17:12:48,332 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:12:48" (1/1) ... [2021-11-23 17:12:48,349 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 17:12:48,350 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 17:12:48,350 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 17:12:48,350 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 17:12:48,352 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:12:48" (1/1) ... [2021-11-23 17:12:48,374 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:12:48,390 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e25cd1c-cbd2-411f-86d7-46f024ebae84/bin/utaipan-fb15Y9Yzbl/z3 [2021-11-23 17:12:48,423 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e25cd1c-cbd2-411f-86d7-46f024ebae84/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 17:12:48,442 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e25cd1c-cbd2-411f-86d7-46f024ebae84/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 17:12:48,483 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 17:12:48,483 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 17:12:48,484 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 17:12:48,484 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 17:12:48,649 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 17:12:48,667 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 17:12:48,736 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-23 17:12:49,313 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##90: assume false; [2021-11-23 17:12:49,314 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##91: assume !false; [2021-11-23 17:12:49,314 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 17:12:49,364 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder has thrown an exception: java.lang.UnsupportedOperationException: Set is immutable at de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.addAll(ImmutableSet.java:313) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaBuilder.addBranchEncoders(TransFormulaBuilder.java:170) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.parallelComposition(TransFormulaUtils.java:337) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.ParallelComposition.(ParallelComposition.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CodeBlockFactory.constructParallelComposition(CodeBlockFactory.java:109) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder$LargeBlockEncoding.composeParallel(CfgBuilder.java:1792) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder$LargeBlockEncoding.(CfgBuilder.java:1653) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder.createIcfg(CfgBuilder.java:280) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBuilderObserver.process(RCFGBuilderObserver.java:88) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.DFSTreeWalker.runObserver(DFSTreeWalker.java:65) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.runObserver(BaseWalker.java:93) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.run(BaseWalker.java:86) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-23 17:12:49,369 INFO L158 Benchmark]: Toolchain (without parser) took 1601.88ms. Allocated memory was 107.0MB in the beginning and 140.5MB in the end (delta: 33.6MB). Free memory was 79.3MB in the beginning and 93.4MB in the end (delta: -14.1MB). Peak memory consumption was 37.8MB. Max. memory is 16.1GB. [2021-11-23 17:12:49,370 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 107.0MB. Free memory is still 79.0MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 17:12:49,371 INFO L158 Benchmark]: CACSL2BoogieTranslator took 411.55ms. Allocated memory is still 107.0MB. Free memory was 79.1MB in the beginning and 63.8MB in the end (delta: 15.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2021-11-23 17:12:49,372 INFO L158 Benchmark]: Boogie Procedure Inliner took 77.66ms. Allocated memory is still 107.0MB. Free memory was 63.8MB in the beginning and 61.1MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 17:12:49,373 INFO L158 Benchmark]: Boogie Preprocessor took 90.85ms. Allocated memory is still 107.0MB. Free memory was 61.1MB in the beginning and 59.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 17:12:49,374 INFO L158 Benchmark]: RCFGBuilder took 1016.92ms. Allocated memory was 107.0MB in the beginning and 140.5MB in the end (delta: 33.6MB). Free memory was 59.0MB in the beginning and 93.4MB in the end (delta: -34.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2021-11-23 17:12:49,378 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 107.0MB. Free memory is still 79.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 411.55ms. Allocated memory is still 107.0MB. Free memory was 79.1MB in the beginning and 63.8MB in the end (delta: 15.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 77.66ms. Allocated memory is still 107.0MB. Free memory was 63.8MB in the beginning and 61.1MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 90.85ms. Allocated memory is still 107.0MB. Free memory was 61.1MB in the beginning and 59.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1016.92ms. Allocated memory was 107.0MB in the beginning and 140.5MB in the end (delta: 33.6MB). Free memory was 59.0MB in the beginning and 93.4MB in the end (delta: -34.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: - ExceptionOrErrorResult: UnsupportedOperationException: Set is immutable de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: UnsupportedOperationException: Set is immutable: de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.addAll(ImmutableSet.java:313) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-11-23 17:12:49,426 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e25cd1c-cbd2-411f-86d7-46f024ebae84/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e25cd1c-cbd2-411f-86d7-46f024ebae84/bin/utaipan-fb15Y9Yzbl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e25cd1c-cbd2-411f-86d7-46f024ebae84/bin/utaipan-fb15Y9Yzbl/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e25cd1c-cbd2-411f-86d7-46f024ebae84/bin/utaipan-fb15Y9Yzbl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e25cd1c-cbd2-411f-86d7-46f024ebae84/bin/utaipan-fb15Y9Yzbl/config/TaipanReach.xml -i ../../sv-benchmarks/c/bitvector/s3_srvr_3a.BV.c.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e25cd1c-cbd2-411f-86d7-46f024ebae84/bin/utaipan-fb15Y9Yzbl/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e25cd1c-cbd2-411f-86d7-46f024ebae84/bin/utaipan-fb15Y9Yzbl --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 a8373cb8fe582bc9cb45d9609c89b33bf31b030c114c7e7fdfee851d52974fb9 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 17:12:52,127 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 17:12:52,131 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 17:12:52,189 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 17:12:52,190 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 17:12:52,195 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 17:12:52,197 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 17:12:52,202 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 17:12:52,206 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 17:12:52,214 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 17:12:52,216 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 17:12:52,218 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 17:12:52,218 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 17:12:52,221 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 17:12:52,224 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 17:12:52,228 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 17:12:52,230 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 17:12:52,232 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 17:12:52,234 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 17:12:52,243 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 17:12:52,245 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 17:12:52,246 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 17:12:52,249 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 17:12:52,252 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 17:12:52,262 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 17:12:52,263 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 17:12:52,263 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 17:12:52,266 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 17:12:52,266 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 17:12:52,268 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 17:12:52,268 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 17:12:52,277 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 17:12:52,280 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 17:12:52,281 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 17:12:52,283 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 17:12:52,283 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 17:12:52,284 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 17:12:52,284 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 17:12:52,285 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 17:12:52,287 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 17:12:52,288 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 17:12:52,289 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e25cd1c-cbd2-411f-86d7-46f024ebae84/bin/utaipan-fb15Y9Yzbl/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-23 17:12:52,338 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 17:12:52,338 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 17:12:52,339 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 17:12:52,339 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 17:12:52,340 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 17:12:52,340 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 17:12:52,341 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 17:12:52,341 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 17:12:52,341 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 17:12:52,341 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 17:12:52,343 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 17:12:52,343 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 17:12:52,345 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 17:12:52,345 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 17:12:52,345 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 17:12:52,345 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 17:12:52,346 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 17:12:52,346 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 17:12:52,346 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 17:12:52,346 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-23 17:12:52,347 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-23 17:12:52,347 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-23 17:12:52,347 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 17:12:52,347 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 17:12:52,348 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 17:12:52,348 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 17:12:52,348 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 17:12:52,348 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-23 17:12:52,349 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 17:12:52,349 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:12:52,349 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 17:12:52,350 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 17:12:52,350 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 17:12:52,351 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-23 17:12:52,351 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-23 17:12:52,351 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 17:12:52,351 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 17:12:52,352 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 17:12:52,352 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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_4e25cd1c-cbd2-411f-86d7-46f024ebae84/bin/utaipan-fb15Y9Yzbl/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e25cd1c-cbd2-411f-86d7-46f024ebae84/bin/utaipan-fb15Y9Yzbl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a8373cb8fe582bc9cb45d9609c89b33bf31b030c114c7e7fdfee851d52974fb9 [2021-11-23 17:12:52,862 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 17:12:52,889 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 17:12:52,892 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 17:12:52,893 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 17:12:52,894 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 17:12:52,896 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e25cd1c-cbd2-411f-86d7-46f024ebae84/bin/utaipan-fb15Y9Yzbl/../../sv-benchmarks/c/bitvector/s3_srvr_3a.BV.c.cil.c [2021-11-23 17:12:52,981 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e25cd1c-cbd2-411f-86d7-46f024ebae84/bin/utaipan-fb15Y9Yzbl/data/91e2a5408/c6d5f390c87b4dea8496f90d0eed05b6/FLAG88e3f05ab [2021-11-23 17:12:53,635 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 17:12:53,636 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e25cd1c-cbd2-411f-86d7-46f024ebae84/sv-benchmarks/c/bitvector/s3_srvr_3a.BV.c.cil.c [2021-11-23 17:12:53,662 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e25cd1c-cbd2-411f-86d7-46f024ebae84/bin/utaipan-fb15Y9Yzbl/data/91e2a5408/c6d5f390c87b4dea8496f90d0eed05b6/FLAG88e3f05ab [2021-11-23 17:12:53,936 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e25cd1c-cbd2-411f-86d7-46f024ebae84/bin/utaipan-fb15Y9Yzbl/data/91e2a5408/c6d5f390c87b4dea8496f90d0eed05b6 [2021-11-23 17:12:53,940 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 17:12:53,942 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 17:12:53,949 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 17:12:53,950 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 17:12:53,954 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 17:12:53,956 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:12:53" (1/1) ... [2021-11-23 17:12:53,958 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5862b26d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:12:53, skipping insertion in model container [2021-11-23 17:12:53,959 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:12:53" (1/1) ... [2021-11-23 17:12:53,971 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 17:12:54,052 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 17:12:54,347 WARN L230 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_4e25cd1c-cbd2-411f-86d7-46f024ebae84/sv-benchmarks/c/bitvector/s3_srvr_3a.BV.c.cil.c[44494,44507] [2021-11-23 17:12:54,361 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:12:54,373 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 17:12:54,430 WARN L230 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_4e25cd1c-cbd2-411f-86d7-46f024ebae84/sv-benchmarks/c/bitvector/s3_srvr_3a.BV.c.cil.c[44494,44507] [2021-11-23 17:12:54,434 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:12:54,447 INFO L208 MainTranslator]: Completed translation [2021-11-23 17:12:54,448 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:12:54 WrapperNode [2021-11-23 17:12:54,448 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 17:12:54,449 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 17:12:54,449 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 17:12:54,449 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 17:12:54,457 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:12:54" (1/1) ... [2021-11-23 17:12:54,472 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:12:54" (1/1) ... [2021-11-23 17:12:54,507 INFO L137 Inliner]: procedures = 15, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 477 [2021-11-23 17:12:54,508 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 17:12:54,509 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 17:12:54,509 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 17:12:54,509 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 17:12:54,518 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:12:54" (1/1) ... [2021-11-23 17:12:54,518 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:12:54" (1/1) ... [2021-11-23 17:12:54,525 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:12:54" (1/1) ... [2021-11-23 17:12:54,525 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:12:54" (1/1) ... [2021-11-23 17:12:54,537 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:12:54" (1/1) ... [2021-11-23 17:12:54,556 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:12:54" (1/1) ... [2021-11-23 17:12:54,567 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:12:54" (1/1) ... [2021-11-23 17:12:54,572 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 17:12:54,573 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 17:12:54,574 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 17:12:54,574 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 17:12:54,575 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:12:54" (1/1) ... [2021-11-23 17:12:54,601 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:12:54,619 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e25cd1c-cbd2-411f-86d7-46f024ebae84/bin/utaipan-fb15Y9Yzbl/z3 [2021-11-23 17:12:54,644 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e25cd1c-cbd2-411f-86d7-46f024ebae84/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 17:12:54,659 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e25cd1c-cbd2-411f-86d7-46f024ebae84/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 17:12:54,699 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 17:12:54,700 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-23 17:12:54,700 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 17:12:54,700 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 17:12:54,834 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 17:12:54,856 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 17:12:54,877 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-23 17:12:55,602 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##90: assume false; [2021-11-23 17:12:55,602 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##91: assume !false; [2021-11-23 17:12:55,603 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 17:12:55,613 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 17:12:55,613 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-23 17:12:55,615 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 05:12:55 BoogieIcfgContainer [2021-11-23 17:12:55,616 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 17:12:55,617 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 17:12:55,618 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 17:12:55,621 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 17:12:55,621 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 05:12:53" (1/3) ... [2021-11-23 17:12:55,638 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61990e07 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 05:12:55, skipping insertion in model container [2021-11-23 17:12:55,650 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:12:54" (2/3) ... [2021-11-23 17:12:55,650 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61990e07 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 05:12:55, skipping insertion in model container [2021-11-23 17:12:55,651 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 05:12:55" (3/3) ... [2021-11-23 17:12:55,652 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_srvr_3a.BV.c.cil.c [2021-11-23 17:12:55,658 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 17:12:55,674 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-23 17:12:55,784 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 17:12:55,791 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 [2021-11-23 17:12:55,792 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-23 17:12:55,812 INFO L276 IsEmpty]: Start isEmpty. Operand has 138 states, 136 states have (on average 1.7426470588235294) internal successors, (237), 137 states have internal predecessors, (237), 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) [2021-11-23 17:12:55,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-11-23 17:12:55,823 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 17:12:55,824 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 17:12:55,824 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 17:12:55,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 17:12:55,831 INFO L85 PathProgramCache]: Analyzing trace with hash 1632003015, now seen corresponding path program 1 times [2021-11-23 17:12:55,846 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 17:12:55,847 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [254269354] [2021-11-23 17:12:55,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 17:12:55,848 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 17:12:55,848 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e25cd1c-cbd2-411f-86d7-46f024ebae84/bin/utaipan-fb15Y9Yzbl/mathsat [2021-11-23 17:12:55,855 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e25cd1c-cbd2-411f-86d7-46f024ebae84/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 17:12:55,858 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e25cd1c-cbd2-411f-86d7-46f024ebae84/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-23 17:12:55,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 17:12:55,966 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-23 17:12:55,973 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 17:12:56,276 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 17:12:56,276 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 17:12:56,277 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-23 17:12:56,277 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [254269354] [2021-11-23 17:12:56,278 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [254269354] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 17:12:56,278 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 17:12:56,279 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 17:12:56,281 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [777978134] [2021-11-23 17:12:56,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 17:12:56,287 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 17:12:56,287 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-23 17:12:56,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 17:12:56,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 17:12:56,325 INFO L87 Difference]: Start difference. First operand has 138 states, 136 states have (on average 1.7426470588235294) internal successors, (237), 137 states have internal predecessors, (237), 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 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 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) [2021-11-23 17:12:56,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 17:12:56,651 INFO L93 Difference]: Finished difference Result 284 states and 484 transitions. [2021-11-23 17:12:56,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 17:12:56,654 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 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 44 [2021-11-23 17:12:56,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 17:12:56,672 INFO L225 Difference]: With dead ends: 284 [2021-11-23 17:12:56,673 INFO L226 Difference]: Without dead ends: 128 [2021-11-23 17:12:56,678 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 17:12:56,692 INFO L933 BasicCegarLoop]: 211 mSDtfsCounter, 20 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 325 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-23 17:12:56,694 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 325 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-23 17:12:56,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2021-11-23 17:12:56,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 125. [2021-11-23 17:12:56,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125 states, 124 states have (on average 1.4919354838709677) internal successors, (185), 124 states have internal predecessors, (185), 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) [2021-11-23 17:12:56,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 185 transitions. [2021-11-23 17:12:56,757 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 185 transitions. Word has length 44 [2021-11-23 17:12:56,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 17:12:56,758 INFO L470 AbstractCegarLoop]: Abstraction has 125 states and 185 transitions. [2021-11-23 17:12:56,758 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 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) [2021-11-23 17:12:56,759 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 185 transitions. [2021-11-23 17:12:56,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-11-23 17:12:56,762 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 17:12:56,762 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 17:12:56,776 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e25cd1c-cbd2-411f-86d7-46f024ebae84/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-23 17:12:56,970 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e25cd1c-cbd2-411f-86d7-46f024ebae84/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 [2021-11-23 17:12:56,970 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 17:12:56,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 17:12:56,971 INFO L85 PathProgramCache]: Analyzing trace with hash -1722912794, now seen corresponding path program 1 times [2021-11-23 17:12:56,973 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 17:12:56,974 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1140882151] [2021-11-23 17:12:56,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 17:12:56,974 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 17:12:56,975 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e25cd1c-cbd2-411f-86d7-46f024ebae84/bin/utaipan-fb15Y9Yzbl/mathsat [2021-11-23 17:12:56,985 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e25cd1c-cbd2-411f-86d7-46f024ebae84/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 17:12:56,989 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e25cd1c-cbd2-411f-86d7-46f024ebae84/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-23 17:12:57,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 17:12:57,082 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-23 17:12:57,085 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 17:12:57,325 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 17:12:57,326 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 17:12:57,326 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-23 17:12:57,327 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1140882151] [2021-11-23 17:12:57,327 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1140882151] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 17:12:57,328 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 17:12:57,328 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 17:12:57,329 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1368378796] [2021-11-23 17:12:57,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 17:12:57,331 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 17:12:57,332 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-23 17:12:57,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 17:12:57,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 17:12:57,336 INFO L87 Difference]: Start difference. First operand 125 states and 185 transitions. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 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) [2021-11-23 17:12:57,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 17:12:57,530 INFO L93 Difference]: Finished difference Result 256 states and 386 transitions. [2021-11-23 17:12:57,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 17:12:57,534 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 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 60 [2021-11-23 17:12:57,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 17:12:57,537 INFO L225 Difference]: With dead ends: 256 [2021-11-23 17:12:57,537 INFO L226 Difference]: Without dead ends: 150 [2021-11-23 17:12:57,538 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 17:12:57,540 INFO L933 BasicCegarLoop]: 169 mSDtfsCounter, 14 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 255 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-23 17:12:57,541 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [14 Valid, 255 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-23 17:12:57,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2021-11-23 17:12:57,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 146. [2021-11-23 17:12:57,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146 states, 145 states have (on average 1.4551724137931035) internal successors, (211), 145 states have internal predecessors, (211), 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) [2021-11-23 17:12:57,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 211 transitions. [2021-11-23 17:12:57,563 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 211 transitions. Word has length 60 [2021-11-23 17:12:57,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 17:12:57,564 INFO L470 AbstractCegarLoop]: Abstraction has 146 states and 211 transitions. [2021-11-23 17:12:57,564 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 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) [2021-11-23 17:12:57,564 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 211 transitions. [2021-11-23 17:12:57,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-11-23 17:12:57,568 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 17:12:57,569 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 17:12:57,587 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e25cd1c-cbd2-411f-86d7-46f024ebae84/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-23 17:12:57,786 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e25cd1c-cbd2-411f-86d7-46f024ebae84/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 [2021-11-23 17:12:57,787 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 17:12:57,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 17:12:57,787 INFO L85 PathProgramCache]: Analyzing trace with hash -1797387181, now seen corresponding path program 1 times [2021-11-23 17:12:57,788 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 17:12:57,789 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1446157349] [2021-11-23 17:12:57,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 17:12:57,789 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 17:12:57,789 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e25cd1c-cbd2-411f-86d7-46f024ebae84/bin/utaipan-fb15Y9Yzbl/mathsat [2021-11-23 17:12:57,790 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e25cd1c-cbd2-411f-86d7-46f024ebae84/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 17:12:57,803 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e25cd1c-cbd2-411f-86d7-46f024ebae84/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-23 17:12:57,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 17:12:57,894 INFO L263 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-23 17:12:57,901 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 17:12:58,099 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-11-23 17:12:58,099 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 17:12:58,099 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-23 17:12:58,100 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1446157349] [2021-11-23 17:12:58,100 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1446157349] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 17:12:58,101 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 17:12:58,101 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 17:12:58,106 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1431481278] [2021-11-23 17:12:58,107 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 17:12:58,107 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 17:12:58,107 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-23 17:12:58,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 17:12:58,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 17:12:58,109 INFO L87 Difference]: Start difference. First operand 146 states and 211 transitions. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 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) [2021-11-23 17:12:58,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 17:12:58,311 INFO L93 Difference]: Finished difference Result 300 states and 441 transitions. [2021-11-23 17:12:58,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 17:12:58,312 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 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 81 [2021-11-23 17:12:58,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 17:12:58,315 INFO L225 Difference]: With dead ends: 300 [2021-11-23 17:12:58,315 INFO L226 Difference]: Without dead ends: 173 [2021-11-23 17:12:58,317 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 17:12:58,318 INFO L933 BasicCegarLoop]: 182 mSDtfsCounter, 13 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 268 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-23 17:12:58,319 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13 Valid, 268 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-23 17:12:58,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2021-11-23 17:12:58,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 170. [2021-11-23 17:12:58,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 170 states, 169 states have (on average 1.4201183431952662) internal successors, (240), 169 states have internal predecessors, (240), 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) [2021-11-23 17:12:58,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 240 transitions. [2021-11-23 17:12:58,335 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 240 transitions. Word has length 81 [2021-11-23 17:12:58,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 17:12:58,336 INFO L470 AbstractCegarLoop]: Abstraction has 170 states and 240 transitions. [2021-11-23 17:12:58,336 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 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) [2021-11-23 17:12:58,337 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 240 transitions. [2021-11-23 17:12:58,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-11-23 17:12:58,340 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 17:12:58,341 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 17:12:58,356 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e25cd1c-cbd2-411f-86d7-46f024ebae84/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-23 17:12:58,552 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e25cd1c-cbd2-411f-86d7-46f024ebae84/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 [2021-11-23 17:12:58,553 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 17:12:58,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 17:12:58,554 INFO L85 PathProgramCache]: Analyzing trace with hash -2045533675, now seen corresponding path program 1 times [2021-11-23 17:12:58,554 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 17:12:58,555 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [181334963] [2021-11-23 17:12:58,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 17:12:58,555 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 17:12:58,555 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e25cd1c-cbd2-411f-86d7-46f024ebae84/bin/utaipan-fb15Y9Yzbl/mathsat [2021-11-23 17:12:58,556 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e25cd1c-cbd2-411f-86d7-46f024ebae84/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 17:12:58,590 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e25cd1c-cbd2-411f-86d7-46f024ebae84/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-23 17:12:58,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 17:12:58,648 INFO L263 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-23 17:12:58,651 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 17:12:58,877 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-11-23 17:12:58,878 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 17:12:58,878 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-23 17:12:58,878 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [181334963] [2021-11-23 17:12:58,878 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [181334963] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 17:12:58,879 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 17:12:58,879 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 17:12:58,879 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [178454691] [2021-11-23 17:12:58,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 17:12:58,880 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 17:12:58,880 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-23 17:12:58,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 17:12:58,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 17:12:58,881 INFO L87 Difference]: Start difference. First operand 170 states and 240 transitions. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 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) [2021-11-23 17:12:59,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 17:12:59,093 INFO L93 Difference]: Finished difference Result 366 states and 534 transitions. [2021-11-23 17:12:59,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 17:12:59,093 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 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 81 [2021-11-23 17:12:59,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 17:12:59,096 INFO L225 Difference]: With dead ends: 366 [2021-11-23 17:12:59,096 INFO L226 Difference]: Without dead ends: 215 [2021-11-23 17:12:59,098 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 17:12:59,099 INFO L933 BasicCegarLoop]: 169 mSDtfsCounter, 15 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 255 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-23 17:12:59,100 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 255 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-23 17:12:59,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 215 states. [2021-11-23 17:12:59,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 215 to 211. [2021-11-23 17:12:59,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 211 states, 210 states have (on average 1.361904761904762) internal successors, (286), 210 states have internal predecessors, (286), 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) [2021-11-23 17:12:59,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 286 transitions. [2021-11-23 17:12:59,116 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 286 transitions. Word has length 81 [2021-11-23 17:12:59,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 17:12:59,117 INFO L470 AbstractCegarLoop]: Abstraction has 211 states and 286 transitions. [2021-11-23 17:12:59,117 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 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) [2021-11-23 17:12:59,117 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 286 transitions. [2021-11-23 17:12:59,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2021-11-23 17:12:59,122 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 17:12:59,122 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 17:12:59,137 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e25cd1c-cbd2-411f-86d7-46f024ebae84/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-23 17:12:59,333 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e25cd1c-cbd2-411f-86d7-46f024ebae84/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 [2021-11-23 17:12:59,334 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 17:12:59,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 17:12:59,335 INFO L85 PathProgramCache]: Analyzing trace with hash 755662145, now seen corresponding path program 1 times [2021-11-23 17:12:59,335 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 17:12:59,335 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1484751396] [2021-11-23 17:12:59,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 17:12:59,336 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 17:12:59,336 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e25cd1c-cbd2-411f-86d7-46f024ebae84/bin/utaipan-fb15Y9Yzbl/mathsat [2021-11-23 17:12:59,337 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e25cd1c-cbd2-411f-86d7-46f024ebae84/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 17:12:59,339 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e25cd1c-cbd2-411f-86d7-46f024ebae84/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-23 17:12:59,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 17:12:59,406 INFO L263 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-23 17:12:59,409 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 17:12:59,619 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2021-11-23 17:12:59,619 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 17:12:59,620 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-23 17:12:59,620 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1484751396] [2021-11-23 17:12:59,620 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1484751396] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 17:12:59,620 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 17:12:59,620 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 17:12:59,621 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [569668132] [2021-11-23 17:12:59,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 17:12:59,622 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 17:12:59,622 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-23 17:12:59,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 17:12:59,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 17:12:59,628 INFO L87 Difference]: Start difference. First operand 211 states and 286 transitions. Second operand has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 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) [2021-11-23 17:12:59,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 17:12:59,806 INFO L93 Difference]: Finished difference Result 440 states and 610 transitions. [2021-11-23 17:12:59,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 17:12:59,807 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 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 101 [2021-11-23 17:12:59,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 17:12:59,809 INFO L225 Difference]: With dead ends: 440 [2021-11-23 17:12:59,810 INFO L226 Difference]: Without dead ends: 248 [2021-11-23 17:12:59,810 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 17:12:59,812 INFO L933 BasicCegarLoop]: 184 mSDtfsCounter, 29 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 270 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-23 17:12:59,812 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [29 Valid, 270 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-23 17:12:59,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 248 states. [2021-11-23 17:12:59,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 248 to 236. [2021-11-23 17:12:59,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 236 states, 235 states have (on average 1.3446808510638297) internal successors, (316), 235 states have internal predecessors, (316), 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) [2021-11-23 17:12:59,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 316 transitions. [2021-11-23 17:12:59,843 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 316 transitions. Word has length 101 [2021-11-23 17:12:59,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 17:12:59,847 INFO L470 AbstractCegarLoop]: Abstraction has 236 states and 316 transitions. [2021-11-23 17:12:59,848 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 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) [2021-11-23 17:12:59,848 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 316 transitions. [2021-11-23 17:12:59,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2021-11-23 17:12:59,857 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 17:12:59,858 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 17:12:59,869 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e25cd1c-cbd2-411f-86d7-46f024ebae84/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-23 17:13:00,058 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e25cd1c-cbd2-411f-86d7-46f024ebae84/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 [2021-11-23 17:13:00,059 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 17:13:00,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 17:13:00,060 INFO L85 PathProgramCache]: Analyzing trace with hash -687746511, now seen corresponding path program 1 times [2021-11-23 17:13:00,060 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 17:13:00,061 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [520716818] [2021-11-23 17:13:00,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 17:13:00,061 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 17:13:00,061 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e25cd1c-cbd2-411f-86d7-46f024ebae84/bin/utaipan-fb15Y9Yzbl/mathsat [2021-11-23 17:13:00,063 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e25cd1c-cbd2-411f-86d7-46f024ebae84/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 17:13:00,069 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e25cd1c-cbd2-411f-86d7-46f024ebae84/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-23 17:13:00,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 17:13:00,133 INFO L263 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-23 17:13:00,136 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 17:13:00,416 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 89 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-11-23 17:13:00,416 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 17:13:00,416 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-23 17:13:00,417 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [520716818] [2021-11-23 17:13:00,417 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [520716818] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 17:13:00,417 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 17:13:00,417 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 17:13:00,417 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [898234324] [2021-11-23 17:13:00,418 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 17:13:00,418 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 17:13:00,418 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-23 17:13:00,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 17:13:00,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 17:13:00,419 INFO L87 Difference]: Start difference. First operand 236 states and 316 transitions. Second operand has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 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) [2021-11-23 17:13:00,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 17:13:00,514 INFO L93 Difference]: Finished difference Result 666 states and 899 transitions. [2021-11-23 17:13:00,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 17:13:00,515 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 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 121 [2021-11-23 17:13:00,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 17:13:00,519 INFO L225 Difference]: With dead ends: 666 [2021-11-23 17:13:00,519 INFO L226 Difference]: Without dead ends: 449 [2021-11-23 17:13:00,520 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 17:13:00,521 INFO L933 BasicCegarLoop]: 270 mSDtfsCounter, 113 mSDsluCounter, 163 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 433 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 17:13:00,522 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [113 Valid, 433 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 17:13:00,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 449 states. [2021-11-23 17:13:00,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 449 to 449. [2021-11-23 17:13:00,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 449 states, 448 states have (on average 1.3415178571428572) internal successors, (601), 448 states have internal predecessors, (601), 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) [2021-11-23 17:13:00,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 449 states to 449 states and 601 transitions. [2021-11-23 17:13:00,559 INFO L78 Accepts]: Start accepts. Automaton has 449 states and 601 transitions. Word has length 121 [2021-11-23 17:13:00,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 17:13:00,560 INFO L470 AbstractCegarLoop]: Abstraction has 449 states and 601 transitions. [2021-11-23 17:13:00,560 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 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) [2021-11-23 17:13:00,560 INFO L276 IsEmpty]: Start isEmpty. Operand 449 states and 601 transitions. [2021-11-23 17:13:00,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2021-11-23 17:13:00,563 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 17:13:00,563 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 17:13:00,585 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e25cd1c-cbd2-411f-86d7-46f024ebae84/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-23 17:13:00,785 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e25cd1c-cbd2-411f-86d7-46f024ebae84/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 [2021-11-23 17:13:00,785 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 17:13:00,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 17:13:00,786 INFO L85 PathProgramCache]: Analyzing trace with hash 209646767, now seen corresponding path program 1 times [2021-11-23 17:13:00,786 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 17:13:00,786 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [501197104] [2021-11-23 17:13:00,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 17:13:00,787 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 17:13:00,787 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e25cd1c-cbd2-411f-86d7-46f024ebae84/bin/utaipan-fb15Y9Yzbl/mathsat [2021-11-23 17:13:00,788 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e25cd1c-cbd2-411f-86d7-46f024ebae84/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 17:13:00,821 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e25cd1c-cbd2-411f-86d7-46f024ebae84/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-23 17:13:00,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 17:13:00,859 INFO L263 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-23 17:13:00,862 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 17:13:01,116 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 62 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2021-11-23 17:13:01,117 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 17:13:01,117 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-23 17:13:01,117 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [501197104] [2021-11-23 17:13:01,117 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [501197104] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 17:13:01,117 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 17:13:01,117 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 17:13:01,118 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [132303524] [2021-11-23 17:13:01,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 17:13:01,118 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 17:13:01,119 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-23 17:13:01,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 17:13:01,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 17:13:01,119 INFO L87 Difference]: Start difference. First operand 449 states and 601 transitions. Second operand has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 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) [2021-11-23 17:13:01,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 17:13:01,196 INFO L93 Difference]: Finished difference Result 1090 states and 1466 transitions. [2021-11-23 17:13:01,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 17:13:01,197 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 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 121 [2021-11-23 17:13:01,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 17:13:01,203 INFO L225 Difference]: With dead ends: 1090 [2021-11-23 17:13:01,204 INFO L226 Difference]: Without dead ends: 660 [2021-11-23 17:13:01,205 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 17:13:01,206 INFO L933 BasicCegarLoop]: 254 mSDtfsCounter, 111 mSDsluCounter, 163 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 417 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 17:13:01,206 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [111 Valid, 417 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 17:13:01,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 660 states. [2021-11-23 17:13:01,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 660 to 660. [2021-11-23 17:13:01,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 660 states, 659 states have (on average 1.339908952959029) internal successors, (883), 659 states have internal predecessors, (883), 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) [2021-11-23 17:13:01,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 660 states to 660 states and 883 transitions. [2021-11-23 17:13:01,249 INFO L78 Accepts]: Start accepts. Automaton has 660 states and 883 transitions. Word has length 121 [2021-11-23 17:13:01,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 17:13:01,249 INFO L470 AbstractCegarLoop]: Abstraction has 660 states and 883 transitions. [2021-11-23 17:13:01,250 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 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) [2021-11-23 17:13:01,250 INFO L276 IsEmpty]: Start isEmpty. Operand 660 states and 883 transitions. [2021-11-23 17:13:01,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2021-11-23 17:13:01,253 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 17:13:01,253 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 17:13:01,270 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e25cd1c-cbd2-411f-86d7-46f024ebae84/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-23 17:13:01,466 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e25cd1c-cbd2-411f-86d7-46f024ebae84/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 [2021-11-23 17:13:01,466 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 17:13:01,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 17:13:01,467 INFO L85 PathProgramCache]: Analyzing trace with hash 1728089839, now seen corresponding path program 1 times [2021-11-23 17:13:01,468 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 17:13:01,468 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [543642240] [2021-11-23 17:13:01,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 17:13:01,469 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 17:13:01,469 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e25cd1c-cbd2-411f-86d7-46f024ebae84/bin/utaipan-fb15Y9Yzbl/mathsat [2021-11-23 17:13:01,470 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e25cd1c-cbd2-411f-86d7-46f024ebae84/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 17:13:01,475 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e25cd1c-cbd2-411f-86d7-46f024ebae84/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-23 17:13:01,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 17:13:01,553 INFO L263 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-23 17:13:01,555 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 17:13:01,787 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 65 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2021-11-23 17:13:01,788 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 17:13:01,788 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-23 17:13:01,788 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [543642240] [2021-11-23 17:13:01,788 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [543642240] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 17:13:01,789 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 17:13:01,789 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 17:13:01,789 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [920063468] [2021-11-23 17:13:01,789 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 17:13:01,790 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 17:13:01,790 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-23 17:13:01,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 17:13:01,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 17:13:01,791 INFO L87 Difference]: Start difference. First operand 660 states and 883 transitions. Second operand has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 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) [2021-11-23 17:13:01,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 17:13:01,847 INFO L93 Difference]: Finished difference Result 1325 states and 1773 transitions. [2021-11-23 17:13:01,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 17:13:01,848 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 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 121 [2021-11-23 17:13:01,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 17:13:01,853 INFO L225 Difference]: With dead ends: 1325 [2021-11-23 17:13:01,854 INFO L226 Difference]: Without dead ends: 684 [2021-11-23 17:13:01,855 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 17:13:01,856 INFO L933 BasicCegarLoop]: 183 mSDtfsCounter, 10 mSDsluCounter, 163 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 346 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 17:13:01,857 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10 Valid, 346 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 17:13:01,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 684 states. [2021-11-23 17:13:01,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 684 to 684. [2021-11-23 17:13:01,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 684 states, 683 states have (on average 1.335285505124451) internal successors, (912), 683 states have internal predecessors, (912), 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) [2021-11-23 17:13:01,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 684 states to 684 states and 912 transitions. [2021-11-23 17:13:01,885 INFO L78 Accepts]: Start accepts. Automaton has 684 states and 912 transitions. Word has length 121 [2021-11-23 17:13:01,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 17:13:01,885 INFO L470 AbstractCegarLoop]: Abstraction has 684 states and 912 transitions. [2021-11-23 17:13:01,885 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 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) [2021-11-23 17:13:01,886 INFO L276 IsEmpty]: Start isEmpty. Operand 684 states and 912 transitions. [2021-11-23 17:13:01,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2021-11-23 17:13:01,889 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 17:13:01,889 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 17:13:01,906 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e25cd1c-cbd2-411f-86d7-46f024ebae84/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-11-23 17:13:02,101 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e25cd1c-cbd2-411f-86d7-46f024ebae84/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 [2021-11-23 17:13:02,102 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 17:13:02,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 17:13:02,103 INFO L85 PathProgramCache]: Analyzing trace with hash -305304207, now seen corresponding path program 1 times [2021-11-23 17:13:02,108 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 17:13:02,109 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1619353902] [2021-11-23 17:13:02,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 17:13:02,109 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 17:13:02,109 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e25cd1c-cbd2-411f-86d7-46f024ebae84/bin/utaipan-fb15Y9Yzbl/mathsat [2021-11-23 17:13:02,110 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e25cd1c-cbd2-411f-86d7-46f024ebae84/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 17:13:02,117 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e25cd1c-cbd2-411f-86d7-46f024ebae84/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-23 17:13:02,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 17:13:02,187 INFO L263 TraceCheckSpWp]: Trace formula consists of 152 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-23 17:13:02,189 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 17:13:02,414 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2021-11-23 17:13:02,414 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 17:13:02,414 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-23 17:13:02,414 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1619353902] [2021-11-23 17:13:02,414 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1619353902] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 17:13:02,415 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 17:13:02,415 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 17:13:02,415 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1911037935] [2021-11-23 17:13:02,415 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 17:13:02,415 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 17:13:02,416 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-23 17:13:02,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 17:13:02,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 17:13:02,416 INFO L87 Difference]: Start difference. First operand 684 states and 912 transitions. Second operand has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 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) [2021-11-23 17:13:02,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 17:13:02,476 INFO L93 Difference]: Finished difference Result 1351 states and 1804 transitions. [2021-11-23 17:13:02,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 17:13:02,476 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 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 121 [2021-11-23 17:13:02,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 17:13:02,482 INFO L225 Difference]: With dead ends: 1351 [2021-11-23 17:13:02,482 INFO L226 Difference]: Without dead ends: 686 [2021-11-23 17:13:02,483 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 17:13:02,486 INFO L933 BasicCegarLoop]: 173 mSDtfsCounter, 6 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 326 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 17:13:02,487 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6 Valid, 326 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 17:13:02,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 686 states. [2021-11-23 17:13:02,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 686 to 686. [2021-11-23 17:13:02,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 686 states, 685 states have (on average 1.3343065693430658) internal successors, (914), 685 states have internal predecessors, (914), 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) [2021-11-23 17:13:02,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 686 states to 686 states and 914 transitions. [2021-11-23 17:13:02,519 INFO L78 Accepts]: Start accepts. Automaton has 686 states and 914 transitions. Word has length 121 [2021-11-23 17:13:02,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 17:13:02,519 INFO L470 AbstractCegarLoop]: Abstraction has 686 states and 914 transitions. [2021-11-23 17:13:02,519 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 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) [2021-11-23 17:13:02,520 INFO L276 IsEmpty]: Start isEmpty. Operand 686 states and 914 transitions. [2021-11-23 17:13:02,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2021-11-23 17:13:02,523 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 17:13:02,524 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 17:13:02,543 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e25cd1c-cbd2-411f-86d7-46f024ebae84/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-11-23 17:13:02,743 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e25cd1c-cbd2-411f-86d7-46f024ebae84/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 [2021-11-23 17:13:02,744 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 17:13:02,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 17:13:02,745 INFO L85 PathProgramCache]: Analyzing trace with hash -247255522, now seen corresponding path program 1 times [2021-11-23 17:13:02,745 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 17:13:02,745 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [466809237] [2021-11-23 17:13:02,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 17:13:02,746 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 17:13:02,746 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e25cd1c-cbd2-411f-86d7-46f024ebae84/bin/utaipan-fb15Y9Yzbl/mathsat [2021-11-23 17:13:02,747 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e25cd1c-cbd2-411f-86d7-46f024ebae84/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 17:13:02,775 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e25cd1c-cbd2-411f-86d7-46f024ebae84/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-11-23 17:13:02,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 17:13:02,913 INFO L263 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-23 17:13:02,921 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 17:13:03,209 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 155 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2021-11-23 17:13:03,211 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 17:13:03,211 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-23 17:13:03,211 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [466809237] [2021-11-23 17:13:03,211 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [466809237] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 17:13:03,211 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 17:13:03,212 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 17:13:03,212 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [189718653] [2021-11-23 17:13:03,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 17:13:03,213 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 17:13:03,213 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-23 17:13:03,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 17:13:03,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 17:13:03,214 INFO L87 Difference]: Start difference. First operand 686 states and 914 transitions. Second operand has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 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) [2021-11-23 17:13:03,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 17:13:03,440 INFO L93 Difference]: Finished difference Result 1446 states and 1964 transitions. [2021-11-23 17:13:03,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 17:13:03,444 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 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 159 [2021-11-23 17:13:03,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 17:13:03,450 INFO L225 Difference]: With dead ends: 1446 [2021-11-23 17:13:03,450 INFO L226 Difference]: Without dead ends: 781 [2021-11-23 17:13:03,451 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 157 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 17:13:03,453 INFO L933 BasicCegarLoop]: 182 mSDtfsCounter, 18 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 267 SdHoareTripleChecker+Invalid, 151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-23 17:13:03,454 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [18 Valid, 267 Invalid, 151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-23 17:13:03,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 781 states. [2021-11-23 17:13:03,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 781 to 770. [2021-11-23 17:13:03,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 770 states, 769 states have (on average 1.3107932379713914) internal successors, (1008), 769 states have internal predecessors, (1008), 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) [2021-11-23 17:13:03,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 770 states to 770 states and 1008 transitions. [2021-11-23 17:13:03,489 INFO L78 Accepts]: Start accepts. Automaton has 770 states and 1008 transitions. Word has length 159 [2021-11-23 17:13:03,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 17:13:03,490 INFO L470 AbstractCegarLoop]: Abstraction has 770 states and 1008 transitions. [2021-11-23 17:13:03,490 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 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) [2021-11-23 17:13:03,490 INFO L276 IsEmpty]: Start isEmpty. Operand 770 states and 1008 transitions. [2021-11-23 17:13:03,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2021-11-23 17:13:03,495 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 17:13:03,495 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 17:13:03,515 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e25cd1c-cbd2-411f-86d7-46f024ebae84/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-11-23 17:13:03,708 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e25cd1c-cbd2-411f-86d7-46f024ebae84/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 [2021-11-23 17:13:03,708 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 17:13:03,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 17:13:03,709 INFO L85 PathProgramCache]: Analyzing trace with hash 118327499, now seen corresponding path program 1 times [2021-11-23 17:13:03,710 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 17:13:03,710 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [978527383] [2021-11-23 17:13:03,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 17:13:03,711 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 17:13:03,711 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e25cd1c-cbd2-411f-86d7-46f024ebae84/bin/utaipan-fb15Y9Yzbl/mathsat [2021-11-23 17:13:03,712 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e25cd1c-cbd2-411f-86d7-46f024ebae84/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 17:13:03,745 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e25cd1c-cbd2-411f-86d7-46f024ebae84/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-11-23 17:13:03,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 17:13:03,851 INFO L263 TraceCheckSpWp]: Trace formula consists of 239 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-23 17:13:03,854 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 17:13:04,185 INFO L134 CoverageAnalysis]: Checked inductivity of 327 backedges. 220 proven. 0 refuted. 0 times theorem prover too weak. 107 trivial. 0 not checked. [2021-11-23 17:13:04,185 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 17:13:04,186 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-23 17:13:04,186 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [978527383] [2021-11-23 17:13:04,186 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [978527383] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 17:13:04,186 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 17:13:04,186 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 17:13:04,186 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1901728565] [2021-11-23 17:13:04,186 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 17:13:04,187 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 17:13:04,187 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-23 17:13:04,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 17:13:04,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 17:13:04,188 INFO L87 Difference]: Start difference. First operand 770 states and 1008 transitions. Second operand has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 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) [2021-11-23 17:13:04,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 17:13:04,418 INFO L93 Difference]: Finished difference Result 1612 states and 2150 transitions. [2021-11-23 17:13:04,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 17:13:04,423 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 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 201 [2021-11-23 17:13:04,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 17:13:04,430 INFO L225 Difference]: With dead ends: 1612 [2021-11-23 17:13:04,430 INFO L226 Difference]: Without dead ends: 863 [2021-11-23 17:13:04,432 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 200 GetRequests, 199 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 17:13:04,432 INFO L933 BasicCegarLoop]: 185 mSDtfsCounter, 13 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 265 SdHoareTripleChecker+Invalid, 129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-23 17:13:04,433 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13 Valid, 265 Invalid, 129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-23 17:13:04,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 863 states. [2021-11-23 17:13:04,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 863 to 863. [2021-11-23 17:13:04,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 863 states, 862 states have (on average 1.294663573085847) internal successors, (1116), 862 states have internal predecessors, (1116), 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) [2021-11-23 17:13:04,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 863 states to 863 states and 1116 transitions. [2021-11-23 17:13:04,466 INFO L78 Accepts]: Start accepts. Automaton has 863 states and 1116 transitions. Word has length 201 [2021-11-23 17:13:04,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 17:13:04,467 INFO L470 AbstractCegarLoop]: Abstraction has 863 states and 1116 transitions. [2021-11-23 17:13:04,467 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 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) [2021-11-23 17:13:04,467 INFO L276 IsEmpty]: Start isEmpty. Operand 863 states and 1116 transitions. [2021-11-23 17:13:04,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2021-11-23 17:13:04,472 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 17:13:04,473 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 17:13:04,490 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e25cd1c-cbd2-411f-86d7-46f024ebae84/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-11-23 17:13:04,690 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e25cd1c-cbd2-411f-86d7-46f024ebae84/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 [2021-11-23 17:13:04,691 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 17:13:04,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 17:13:04,691 INFO L85 PathProgramCache]: Analyzing trace with hash 598072934, now seen corresponding path program 1 times [2021-11-23 17:13:04,692 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 17:13:04,692 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1184448310] [2021-11-23 17:13:04,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 17:13:04,693 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 17:13:04,693 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e25cd1c-cbd2-411f-86d7-46f024ebae84/bin/utaipan-fb15Y9Yzbl/mathsat [2021-11-23 17:13:04,694 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e25cd1c-cbd2-411f-86d7-46f024ebae84/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 17:13:04,727 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e25cd1c-cbd2-411f-86d7-46f024ebae84/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-11-23 17:13:04,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 17:13:04,847 INFO L263 TraceCheckSpWp]: Trace formula consists of 267 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-23 17:13:04,850 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 17:13:05,210 INFO L134 CoverageAnalysis]: Checked inductivity of 458 backedges. 160 proven. 0 refuted. 0 times theorem prover too weak. 298 trivial. 0 not checked. [2021-11-23 17:13:05,210 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 17:13:05,210 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-23 17:13:05,210 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1184448310] [2021-11-23 17:13:05,211 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1184448310] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 17:13:05,211 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 17:13:05,211 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 17:13:05,211 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1337441604] [2021-11-23 17:13:05,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 17:13:05,212 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 17:13:05,212 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-23 17:13:05,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 17:13:05,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 17:13:05,213 INFO L87 Difference]: Start difference. First operand 863 states and 1116 transitions. Second operand has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 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) [2021-11-23 17:13:05,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 17:13:05,440 INFO L93 Difference]: Finished difference Result 1834 states and 2435 transitions. [2021-11-23 17:13:05,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 17:13:05,445 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 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 229 [2021-11-23 17:13:05,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 17:13:05,451 INFO L225 Difference]: With dead ends: 1834 [2021-11-23 17:13:05,451 INFO L226 Difference]: Without dead ends: 858 [2021-11-23 17:13:05,453 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 228 GetRequests, 227 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 17:13:05,455 INFO L933 BasicCegarLoop]: 185 mSDtfsCounter, 10 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 271 SdHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-23 17:13:05,455 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10 Valid, 271 Invalid, 152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-23 17:13:05,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 858 states. [2021-11-23 17:13:05,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 858 to 858. [2021-11-23 17:13:05,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 858 states, 857 states have (on average 1.2905484247374563) internal successors, (1106), 857 states have internal predecessors, (1106), 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) [2021-11-23 17:13:05,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 858 states to 858 states and 1106 transitions. [2021-11-23 17:13:05,485 INFO L78 Accepts]: Start accepts. Automaton has 858 states and 1106 transitions. Word has length 229 [2021-11-23 17:13:05,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 17:13:05,486 INFO L470 AbstractCegarLoop]: Abstraction has 858 states and 1106 transitions. [2021-11-23 17:13:05,486 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 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) [2021-11-23 17:13:05,487 INFO L276 IsEmpty]: Start isEmpty. Operand 858 states and 1106 transitions. [2021-11-23 17:13:05,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 270 [2021-11-23 17:13:05,491 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 17:13:05,492 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 17:13:05,506 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e25cd1c-cbd2-411f-86d7-46f024ebae84/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2021-11-23 17:13:05,706 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e25cd1c-cbd2-411f-86d7-46f024ebae84/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 [2021-11-23 17:13:05,707 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 17:13:05,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 17:13:05,707 INFO L85 PathProgramCache]: Analyzing trace with hash 1622703552, now seen corresponding path program 1 times [2021-11-23 17:13:05,708 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 17:13:05,708 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1572901960] [2021-11-23 17:13:05,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 17:13:05,708 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 17:13:05,708 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e25cd1c-cbd2-411f-86d7-46f024ebae84/bin/utaipan-fb15Y9Yzbl/mathsat [2021-11-23 17:13:05,709 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e25cd1c-cbd2-411f-86d7-46f024ebae84/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 17:13:05,710 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e25cd1c-cbd2-411f-86d7-46f024ebae84/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2021-11-23 17:13:05,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 17:13:05,882 INFO L263 TraceCheckSpWp]: Trace formula consists of 310 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-23 17:13:05,887 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 17:13:06,535 INFO L134 CoverageAnalysis]: Checked inductivity of 654 backedges. 429 proven. 0 refuted. 0 times theorem prover too weak. 225 trivial. 0 not checked. [2021-11-23 17:13:06,535 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 17:13:06,536 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-23 17:13:06,536 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1572901960] [2021-11-23 17:13:06,536 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1572901960] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 17:13:06,536 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 17:13:06,536 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 17:13:06,536 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1381115125] [2021-11-23 17:13:06,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 17:13:06,537 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 17:13:06,537 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-23 17:13:06,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 17:13:06,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 17:13:06,538 INFO L87 Difference]: Start difference. First operand 858 states and 1106 transitions. Second operand has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 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) [2021-11-23 17:13:06,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 17:13:06,581 INFO L93 Difference]: Finished difference Result 2415 states and 3131 transitions. [2021-11-23 17:13:06,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 17:13:06,587 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 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 269 [2021-11-23 17:13:06,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 17:13:06,594 INFO L225 Difference]: With dead ends: 2415 [2021-11-23 17:13:06,594 INFO L226 Difference]: Without dead ends: 1074 [2021-11-23 17:13:06,596 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 268 GetRequests, 267 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 17:13:06,597 INFO L933 BasicCegarLoop]: 291 mSDtfsCounter, 98 mSDsluCounter, 165 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 456 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 17:13:06,598 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [98 Valid, 456 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 17:13:06,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1074 states. [2021-11-23 17:13:06,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1074 to 1072. [2021-11-23 17:13:06,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1072 states, 1071 states have (on average 1.2913165266106443) internal successors, (1383), 1071 states have internal predecessors, (1383), 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) [2021-11-23 17:13:06,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1072 states to 1072 states and 1383 transitions. [2021-11-23 17:13:06,642 INFO L78 Accepts]: Start accepts. Automaton has 1072 states and 1383 transitions. Word has length 269 [2021-11-23 17:13:06,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 17:13:06,643 INFO L470 AbstractCegarLoop]: Abstraction has 1072 states and 1383 transitions. [2021-11-23 17:13:06,643 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 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) [2021-11-23 17:13:06,644 INFO L276 IsEmpty]: Start isEmpty. Operand 1072 states and 1383 transitions. [2021-11-23 17:13:06,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 316 [2021-11-23 17:13:06,650 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 17:13:06,650 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 8, 8, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 17:13:06,666 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e25cd1c-cbd2-411f-86d7-46f024ebae84/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2021-11-23 17:13:06,866 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e25cd1c-cbd2-411f-86d7-46f024ebae84/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 [2021-11-23 17:13:06,866 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 17:13:06,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 17:13:06,867 INFO L85 PathProgramCache]: Analyzing trace with hash 746936446, now seen corresponding path program 1 times [2021-11-23 17:13:06,868 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 17:13:06,868 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1027862001] [2021-11-23 17:13:06,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 17:13:06,868 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 17:13:06,868 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e25cd1c-cbd2-411f-86d7-46f024ebae84/bin/utaipan-fb15Y9Yzbl/mathsat [2021-11-23 17:13:06,869 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e25cd1c-cbd2-411f-86d7-46f024ebae84/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 17:13:06,872 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e25cd1c-cbd2-411f-86d7-46f024ebae84/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2021-11-23 17:13:07,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 17:13:07,051 INFO L263 TraceCheckSpWp]: Trace formula consists of 360 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-23 17:13:07,055 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 17:13:07,585 INFO L134 CoverageAnalysis]: Checked inductivity of 954 backedges. 500 proven. 0 refuted. 0 times theorem prover too weak. 454 trivial. 0 not checked. [2021-11-23 17:13:07,586 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 17:13:07,586 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-23 17:13:07,586 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1027862001] [2021-11-23 17:13:07,586 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1027862001] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 17:13:07,586 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 17:13:07,587 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 17:13:07,587 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [973970670] [2021-11-23 17:13:07,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 17:13:07,587 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 17:13:07,588 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-23 17:13:07,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 17:13:07,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 17:13:07,588 INFO L87 Difference]: Start difference. First operand 1072 states and 1383 transitions. Second operand has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 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) [2021-11-23 17:13:07,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 17:13:07,775 INFO L93 Difference]: Finished difference Result 2259 states and 2965 transitions. [2021-11-23 17:13:07,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 17:13:07,776 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 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 315 [2021-11-23 17:13:07,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 17:13:07,783 INFO L225 Difference]: With dead ends: 2259 [2021-11-23 17:13:07,783 INFO L226 Difference]: Without dead ends: 1208 [2021-11-23 17:13:07,785 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 314 GetRequests, 313 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 17:13:07,786 INFO L933 BasicCegarLoop]: 179 mSDtfsCounter, 18 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 265 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-23 17:13:07,786 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [18 Valid, 265 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-23 17:13:07,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1208 states. [2021-11-23 17:13:07,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1208 to 1180. [2021-11-23 17:13:07,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1180 states, 1179 states have (on average 1.2815945716709076) internal successors, (1511), 1179 states have internal predecessors, (1511), 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) [2021-11-23 17:13:07,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1180 states to 1180 states and 1511 transitions. [2021-11-23 17:13:07,826 INFO L78 Accepts]: Start accepts. Automaton has 1180 states and 1511 transitions. Word has length 315 [2021-11-23 17:13:07,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 17:13:07,826 INFO L470 AbstractCegarLoop]: Abstraction has 1180 states and 1511 transitions. [2021-11-23 17:13:07,827 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 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) [2021-11-23 17:13:07,827 INFO L276 IsEmpty]: Start isEmpty. Operand 1180 states and 1511 transitions. [2021-11-23 17:13:07,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 339 [2021-11-23 17:13:07,833 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 17:13:07,834 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 9, 9, 8, 8, 7, 7, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 17:13:07,853 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e25cd1c-cbd2-411f-86d7-46f024ebae84/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2021-11-23 17:13:08,050 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e25cd1c-cbd2-411f-86d7-46f024ebae84/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 [2021-11-23 17:13:08,051 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 17:13:08,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 17:13:08,052 INFO L85 PathProgramCache]: Analyzing trace with hash -1865013778, now seen corresponding path program 1 times [2021-11-23 17:13:08,053 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 17:13:08,053 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [730733904] [2021-11-23 17:13:08,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 17:13:08,054 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 17:13:08,054 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e25cd1c-cbd2-411f-86d7-46f024ebae84/bin/utaipan-fb15Y9Yzbl/mathsat [2021-11-23 17:13:08,055 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e25cd1c-cbd2-411f-86d7-46f024ebae84/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 17:13:08,088 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e25cd1c-cbd2-411f-86d7-46f024ebae84/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2021-11-23 17:13:08,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 17:13:08,220 INFO L263 TraceCheckSpWp]: Trace formula consists of 386 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-23 17:13:08,223 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 17:13:08,789 INFO L134 CoverageAnalysis]: Checked inductivity of 1151 backedges. 642 proven. 0 refuted. 0 times theorem prover too weak. 509 trivial. 0 not checked. [2021-11-23 17:13:08,789 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 17:13:08,790 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-23 17:13:08,790 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [730733904] [2021-11-23 17:13:08,790 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [730733904] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 17:13:08,790 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 17:13:08,790 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 17:13:08,791 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2072303047] [2021-11-23 17:13:08,791 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 17:13:08,791 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 17:13:08,791 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-23 17:13:08,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 17:13:08,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 17:13:08,792 INFO L87 Difference]: Start difference. First operand 1180 states and 1511 transitions. Second operand has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 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) [2021-11-23 17:13:08,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 17:13:08,986 INFO L93 Difference]: Finished difference Result 2463 states and 3197 transitions. [2021-11-23 17:13:08,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 17:13:08,987 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 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 338 [2021-11-23 17:13:08,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 17:13:08,996 INFO L225 Difference]: With dead ends: 2463 [2021-11-23 17:13:08,996 INFO L226 Difference]: Without dead ends: 1304 [2021-11-23 17:13:09,000 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 337 GetRequests, 336 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 17:13:09,001 INFO L933 BasicCegarLoop]: 179 mSDtfsCounter, 11 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 265 SdHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-23 17:13:09,002 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 265 Invalid, 121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-23 17:13:09,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1304 states. [2021-11-23 17:13:09,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1304 to 1296. [2021-11-23 17:13:09,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1296 states, 1295 states have (on average 1.271814671814672) internal successors, (1647), 1295 states have internal predecessors, (1647), 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) [2021-11-23 17:13:09,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1296 states to 1296 states and 1647 transitions. [2021-11-23 17:13:09,047 INFO L78 Accepts]: Start accepts. Automaton has 1296 states and 1647 transitions. Word has length 338 [2021-11-23 17:13:09,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 17:13:09,048 INFO L470 AbstractCegarLoop]: Abstraction has 1296 states and 1647 transitions. [2021-11-23 17:13:09,048 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 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) [2021-11-23 17:13:09,048 INFO L276 IsEmpty]: Start isEmpty. Operand 1296 states and 1647 transitions. [2021-11-23 17:13:09,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 371 [2021-11-23 17:13:09,052 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 17:13:09,052 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 10, 10, 9, 9, 8, 8, 7, 7, 7, 7, 5, 5, 5, 5, 5, 5, 5, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 17:13:09,067 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e25cd1c-cbd2-411f-86d7-46f024ebae84/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2021-11-23 17:13:09,267 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e25cd1c-cbd2-411f-86d7-46f024ebae84/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 [2021-11-23 17:13:09,267 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 17:13:09,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 17:13:09,268 INFO L85 PathProgramCache]: Analyzing trace with hash -1876884711, now seen corresponding path program 1 times [2021-11-23 17:13:09,268 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 17:13:09,268 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [953248245] [2021-11-23 17:13:09,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 17:13:09,269 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 17:13:09,269 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e25cd1c-cbd2-411f-86d7-46f024ebae84/bin/utaipan-fb15Y9Yzbl/mathsat [2021-11-23 17:13:09,271 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e25cd1c-cbd2-411f-86d7-46f024ebae84/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 17:13:09,272 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e25cd1c-cbd2-411f-86d7-46f024ebae84/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2021-11-23 17:13:09,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 17:13:09,453 INFO L263 TraceCheckSpWp]: Trace formula consists of 419 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-23 17:13:09,458 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 17:13:10,125 INFO L134 CoverageAnalysis]: Checked inductivity of 1396 backedges. 699 proven. 0 refuted. 0 times theorem prover too weak. 697 trivial. 0 not checked. [2021-11-23 17:13:10,125 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 17:13:10,125 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-23 17:13:10,126 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [953248245] [2021-11-23 17:13:10,126 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [953248245] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 17:13:10,126 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 17:13:10,126 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 17:13:10,126 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1177811956] [2021-11-23 17:13:10,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 17:13:10,127 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 17:13:10,127 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-23 17:13:10,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 17:13:10,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 17:13:10,128 INFO L87 Difference]: Start difference. First operand 1296 states and 1647 transitions. Second operand has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 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) [2021-11-23 17:13:10,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 17:13:10,181 INFO L93 Difference]: Finished difference Result 3838 states and 4879 transitions. [2021-11-23 17:13:10,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 17:13:10,182 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 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 370 [2021-11-23 17:13:10,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 17:13:10,196 INFO L225 Difference]: With dead ends: 3838 [2021-11-23 17:13:10,196 INFO L226 Difference]: Without dead ends: 2563 [2021-11-23 17:13:10,198 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 369 GetRequests, 368 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 17:13:10,199 INFO L933 BasicCegarLoop]: 207 mSDtfsCounter, 123 mSDsluCounter, 163 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 370 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 17:13:10,199 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [123 Valid, 370 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 17:13:10,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2563 states. [2021-11-23 17:13:10,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2563 to 2561. [2021-11-23 17:13:10,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2561 states, 2560 states have (on average 1.26875) internal successors, (3248), 2560 states have internal predecessors, (3248), 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) [2021-11-23 17:13:10,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2561 states to 2561 states and 3248 transitions. [2021-11-23 17:13:10,277 INFO L78 Accepts]: Start accepts. Automaton has 2561 states and 3248 transitions. Word has length 370 [2021-11-23 17:13:10,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 17:13:10,278 INFO L470 AbstractCegarLoop]: Abstraction has 2561 states and 3248 transitions. [2021-11-23 17:13:10,278 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 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) [2021-11-23 17:13:10,278 INFO L276 IsEmpty]: Start isEmpty. Operand 2561 states and 3248 transitions. [2021-11-23 17:13:10,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 372 [2021-11-23 17:13:10,283 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 17:13:10,283 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 10, 10, 9, 9, 8, 8, 7, 7, 7, 7, 5, 5, 5, 5, 5, 5, 5, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 17:13:10,300 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e25cd1c-cbd2-411f-86d7-46f024ebae84/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2021-11-23 17:13:10,496 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e25cd1c-cbd2-411f-86d7-46f024ebae84/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 [2021-11-23 17:13:10,497 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 17:13:10,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 17:13:10,498 INFO L85 PathProgramCache]: Analyzing trace with hash -59651589, now seen corresponding path program 1 times [2021-11-23 17:13:10,498 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 17:13:10,498 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1291668286] [2021-11-23 17:13:10,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 17:13:10,499 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 17:13:10,499 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e25cd1c-cbd2-411f-86d7-46f024ebae84/bin/utaipan-fb15Y9Yzbl/mathsat [2021-11-23 17:13:10,500 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e25cd1c-cbd2-411f-86d7-46f024ebae84/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 17:13:10,530 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e25cd1c-cbd2-411f-86d7-46f024ebae84/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2021-11-23 17:13:10,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 17:13:10,664 INFO L263 TraceCheckSpWp]: Trace formula consists of 420 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-23 17:13:10,668 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 17:13:11,294 INFO L134 CoverageAnalysis]: Checked inductivity of 1396 backedges. 875 proven. 26 refuted. 0 times theorem prover too weak. 495 trivial. 0 not checked. [2021-11-23 17:13:11,295 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 17:13:11,987 INFO L134 CoverageAnalysis]: Checked inductivity of 1396 backedges. 875 proven. 26 refuted. 0 times theorem prover too weak. 495 trivial. 0 not checked. [2021-11-23 17:13:11,988 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-23 17:13:11,988 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1291668286] [2021-11-23 17:13:11,988 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1291668286] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 17:13:11,988 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1302807327] [2021-11-23 17:13:11,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 17:13:11,989 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-23 17:13:11,989 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e25cd1c-cbd2-411f-86d7-46f024ebae84/bin/utaipan-fb15Y9Yzbl/cvc4 [2021-11-23 17:13:11,995 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e25cd1c-cbd2-411f-86d7-46f024ebae84/bin/utaipan-fb15Y9Yzbl/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-23 17:13:11,998 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e25cd1c-cbd2-411f-86d7-46f024ebae84/bin/utaipan-fb15Y9Yzbl/cvc4 --incremental --print-success --lang smt (19)] Waiting until timeout for monitored process [2021-11-23 17:13:12,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 17:13:12,160 INFO L263 TraceCheckSpWp]: Trace formula consists of 420 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-23 17:13:12,165 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 17:13:12,816 INFO L134 CoverageAnalysis]: Checked inductivity of 1396 backedges. 875 proven. 26 refuted. 0 times theorem prover too weak. 495 trivial. 0 not checked. [2021-11-23 17:13:12,816 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 17:13:13,450 INFO L134 CoverageAnalysis]: Checked inductivity of 1396 backedges. 875 proven. 26 refuted. 0 times theorem prover too weak. 495 trivial. 0 not checked. [2021-11-23 17:13:13,451 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1302807327] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 17:13:13,451 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1588301909] [2021-11-23 17:13:13,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 17:13:13,451 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 17:13:13,451 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e25cd1c-cbd2-411f-86d7-46f024ebae84/bin/utaipan-fb15Y9Yzbl/z3 [2021-11-23 17:13:13,455 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e25cd1c-cbd2-411f-86d7-46f024ebae84/bin/utaipan-fb15Y9Yzbl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 17:13:13,478 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e25cd1c-cbd2-411f-86d7-46f024ebae84/bin/utaipan-fb15Y9Yzbl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2021-11-23 17:13:13,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 17:13:13,580 INFO L263 TraceCheckSpWp]: Trace formula consists of 420 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-23 17:13:13,583 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 17:13:14,149 INFO L134 CoverageAnalysis]: Checked inductivity of 1396 backedges. 875 proven. 26 refuted. 0 times theorem prover too weak. 495 trivial. 0 not checked. [2021-11-23 17:13:14,150 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 17:13:14,724 INFO L134 CoverageAnalysis]: Checked inductivity of 1396 backedges. 875 proven. 26 refuted. 0 times theorem prover too weak. 495 trivial. 0 not checked. [2021-11-23 17:13:14,724 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1588301909] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 17:13:14,724 INFO L186 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2021-11-23 17:13:14,725 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4, 4, 4, 4] total 4 [2021-11-23 17:13:14,728 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [336227882] [2021-11-23 17:13:14,728 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2021-11-23 17:13:14,732 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 17:13:14,732 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-23 17:13:14,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 17:13:14,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 17:13:14,733 INFO L87 Difference]: Start difference. First operand 2561 states and 3248 transitions. Second operand has 4 states, 4 states have (on average 42.25) internal successors, (169), 4 states have internal predecessors, (169), 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) [2021-11-23 17:13:15,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 17:13:15,090 INFO L93 Difference]: Finished difference Result 7953 states and 10198 transitions. [2021-11-23 17:13:15,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-23 17:13:15,091 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 42.25) internal successors, (169), 4 states have internal predecessors, (169), 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 371 [2021-11-23 17:13:15,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 17:13:15,123 INFO L225 Difference]: With dead ends: 7953 [2021-11-23 17:13:15,123 INFO L226 Difference]: Without dead ends: 5413 [2021-11-23 17:13:15,128 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2222 GetRequests, 2219 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 17:13:15,129 INFO L933 BasicCegarLoop]: 269 mSDtfsCounter, 149 mSDsluCounter, 301 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 570 SdHoareTripleChecker+Invalid, 178 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-23 17:13:15,130 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [149 Valid, 570 Invalid, 178 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 158 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-23 17:13:15,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5413 states. [2021-11-23 17:13:15,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5413 to 3449. [2021-11-23 17:13:15,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3449 states, 3448 states have (on average 1.2900232018561484) internal successors, (4448), 3448 states have internal predecessors, (4448), 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) [2021-11-23 17:13:15,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3449 states to 3449 states and 4448 transitions. [2021-11-23 17:13:15,291 INFO L78 Accepts]: Start accepts. Automaton has 3449 states and 4448 transitions. Word has length 371 [2021-11-23 17:13:15,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 17:13:15,292 INFO L470 AbstractCegarLoop]: Abstraction has 3449 states and 4448 transitions. [2021-11-23 17:13:15,292 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 42.25) internal successors, (169), 4 states have internal predecessors, (169), 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) [2021-11-23 17:13:15,292 INFO L276 IsEmpty]: Start isEmpty. Operand 3449 states and 4448 transitions. [2021-11-23 17:13:15,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 402 [2021-11-23 17:13:15,299 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 17:13:15,299 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 11, 11, 10, 10, 9, 9, 8, 8, 8, 8, 6, 5, 5, 5, 5, 5, 5, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 17:13:15,306 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e25cd1c-cbd2-411f-86d7-46f024ebae84/bin/utaipan-fb15Y9Yzbl/cvc4 --incremental --print-success --lang smt (19)] Forceful destruction successful, exit code 0 [2021-11-23 17:13:15,515 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e25cd1c-cbd2-411f-86d7-46f024ebae84/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2021-11-23 17:13:15,730 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e25cd1c-cbd2-411f-86d7-46f024ebae84/bin/utaipan-fb15Y9Yzbl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2021-11-23 17:13:15,906 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e25cd1c-cbd2-411f-86d7-46f024ebae84/bin/utaipan-fb15Y9Yzbl/cvc4 --incremental --print-success --lang smt,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e25cd1c-cbd2-411f-86d7-46f024ebae84/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e25cd1c-cbd2-411f-86d7-46f024ebae84/bin/utaipan-fb15Y9Yzbl/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 17:13:15,907 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 17:13:15,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 17:13:15,907 INFO L85 PathProgramCache]: Analyzing trace with hash -1792598736, now seen corresponding path program 1 times [2021-11-23 17:13:15,908 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 17:13:15,908 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1917230872] [2021-11-23 17:13:15,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 17:13:15,909 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 17:13:15,909 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e25cd1c-cbd2-411f-86d7-46f024ebae84/bin/utaipan-fb15Y9Yzbl/mathsat [2021-11-23 17:13:15,924 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e25cd1c-cbd2-411f-86d7-46f024ebae84/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 17:13:15,962 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e25cd1c-cbd2-411f-86d7-46f024ebae84/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2021-11-23 17:13:16,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 17:13:16,117 INFO L263 TraceCheckSpWp]: Trace formula consists of 451 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-23 17:13:16,122 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 17:13:16,777 INFO L134 CoverageAnalysis]: Checked inductivity of 1670 backedges. 916 proven. 0 refuted. 0 times theorem prover too weak. 754 trivial. 0 not checked. [2021-11-23 17:13:16,777 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 17:13:16,777 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-23 17:13:16,778 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1917230872] [2021-11-23 17:13:16,778 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1917230872] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 17:13:16,778 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 17:13:16,778 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 17:13:16,778 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2076081399] [2021-11-23 17:13:16,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 17:13:16,779 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 17:13:16,779 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-23 17:13:16,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 17:13:16,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 17:13:16,780 INFO L87 Difference]: Start difference. First operand 3449 states and 4448 transitions. Second operand has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 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) [2021-11-23 17:13:17,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 17:13:17,010 INFO L93 Difference]: Finished difference Result 7223 states and 9379 transitions. [2021-11-23 17:13:17,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 17:13:17,011 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 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 401 [2021-11-23 17:13:17,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 17:13:17,031 INFO L225 Difference]: With dead ends: 7223 [2021-11-23 17:13:17,031 INFO L226 Difference]: Without dead ends: 3795 [2021-11-23 17:13:17,035 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 400 GetRequests, 399 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 17:13:17,036 INFO L933 BasicCegarLoop]: 185 mSDtfsCounter, 13 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 271 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-23 17:13:17,036 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13 Valid, 271 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-23 17:13:17,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3795 states. [2021-11-23 17:13:17,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3795 to 3609. [2021-11-23 17:13:17,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3609 states, 3608 states have (on average 1.288248337028825) internal successors, (4648), 3608 states have internal predecessors, (4648), 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) [2021-11-23 17:13:17,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3609 states to 3609 states and 4648 transitions. [2021-11-23 17:13:17,148 INFO L78 Accepts]: Start accepts. Automaton has 3609 states and 4648 transitions. Word has length 401 [2021-11-23 17:13:17,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 17:13:17,149 INFO L470 AbstractCegarLoop]: Abstraction has 3609 states and 4648 transitions. [2021-11-23 17:13:17,149 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 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) [2021-11-23 17:13:17,150 INFO L276 IsEmpty]: Start isEmpty. Operand 3609 states and 4648 transitions. [2021-11-23 17:13:17,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 403 [2021-11-23 17:13:17,156 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 17:13:17,157 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 11, 11, 10, 10, 9, 9, 8, 8, 8, 8, 6, 5, 5, 5, 5, 5, 5, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 17:13:17,173 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e25cd1c-cbd2-411f-86d7-46f024ebae84/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (21)] Forceful destruction successful, exit code 0 [2021-11-23 17:13:17,373 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e25cd1c-cbd2-411f-86d7-46f024ebae84/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 [2021-11-23 17:13:17,373 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 17:13:17,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 17:13:17,373 INFO L85 PathProgramCache]: Analyzing trace with hash 571180815, now seen corresponding path program 1 times [2021-11-23 17:13:17,374 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 17:13:17,374 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [437000268] [2021-11-23 17:13:17,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 17:13:17,375 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 17:13:17,375 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e25cd1c-cbd2-411f-86d7-46f024ebae84/bin/utaipan-fb15Y9Yzbl/mathsat [2021-11-23 17:13:17,376 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e25cd1c-cbd2-411f-86d7-46f024ebae84/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 17:13:17,407 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e25cd1c-cbd2-411f-86d7-46f024ebae84/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2021-11-23 17:13:17,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 17:13:17,564 INFO L263 TraceCheckSpWp]: Trace formula consists of 454 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-23 17:13:17,567 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 17:13:18,144 INFO L134 CoverageAnalysis]: Checked inductivity of 1670 backedges. 983 proven. 0 refuted. 0 times theorem prover too weak. 687 trivial. 0 not checked. [2021-11-23 17:13:18,145 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 17:13:18,145 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-23 17:13:18,145 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [437000268] [2021-11-23 17:13:18,145 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [437000268] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 17:13:18,145 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 17:13:18,146 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 17:13:18,146 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [572764127] [2021-11-23 17:13:18,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 17:13:18,147 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 17:13:18,147 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-23 17:13:18,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 17:13:18,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 17:13:18,148 INFO L87 Difference]: Start difference. First operand 3609 states and 4648 transitions. Second operand has 3 states, 3 states have (on average 52.0) internal successors, (156), 3 states have internal predecessors, (156), 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) [2021-11-23 17:13:18,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 17:13:18,423 INFO L93 Difference]: Finished difference Result 7773 states and 10231 transitions. [2021-11-23 17:13:18,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 17:13:18,424 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.0) internal successors, (156), 3 states have internal predecessors, (156), 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 402 [2021-11-23 17:13:18,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 17:13:18,448 INFO L225 Difference]: With dead ends: 7773 [2021-11-23 17:13:18,449 INFO L226 Difference]: Without dead ends: 4185 [2021-11-23 17:13:18,454 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 401 GetRequests, 400 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 17:13:18,455 INFO L933 BasicCegarLoop]: 179 mSDtfsCounter, 11 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 265 SdHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-23 17:13:18,456 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 265 Invalid, 131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-23 17:13:18,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4185 states. [2021-11-23 17:13:18,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4185 to 4153. [2021-11-23 17:13:18,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4153 states, 4152 states have (on average 1.2697495183044316) internal successors, (5272), 4152 states have internal predecessors, (5272), 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) [2021-11-23 17:13:18,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4153 states to 4153 states and 5272 transitions. [2021-11-23 17:13:18,599 INFO L78 Accepts]: Start accepts. Automaton has 4153 states and 5272 transitions. Word has length 402 [2021-11-23 17:13:18,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 17:13:18,600 INFO L470 AbstractCegarLoop]: Abstraction has 4153 states and 5272 transitions. [2021-11-23 17:13:18,600 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.0) internal successors, (156), 3 states have internal predecessors, (156), 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) [2021-11-23 17:13:18,600 INFO L276 IsEmpty]: Start isEmpty. Operand 4153 states and 5272 transitions. [2021-11-23 17:13:18,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 434 [2021-11-23 17:13:18,609 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 17:13:18,610 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 12, 12, 11, 11, 10, 10, 9, 9, 9, 9, 7, 6, 6, 5, 5, 5, 5, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 17:13:18,627 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e25cd1c-cbd2-411f-86d7-46f024ebae84/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (22)] Forceful destruction successful, exit code 0 [2021-11-23 17:13:18,823 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e25cd1c-cbd2-411f-86d7-46f024ebae84/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 [2021-11-23 17:13:18,824 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 17:13:18,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 17:13:18,824 INFO L85 PathProgramCache]: Analyzing trace with hash 1646161403, now seen corresponding path program 1 times [2021-11-23 17:13:18,825 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 17:13:18,825 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1017340184] [2021-11-23 17:13:18,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 17:13:18,826 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 17:13:18,826 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e25cd1c-cbd2-411f-86d7-46f024ebae84/bin/utaipan-fb15Y9Yzbl/mathsat [2021-11-23 17:13:18,827 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e25cd1c-cbd2-411f-86d7-46f024ebae84/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 17:13:18,853 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e25cd1c-cbd2-411f-86d7-46f024ebae84/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2021-11-23 17:13:19,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 17:13:19,012 INFO L263 TraceCheckSpWp]: Trace formula consists of 487 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-23 17:13:19,016 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 17:13:19,548 INFO L134 CoverageAnalysis]: Checked inductivity of 1981 backedges. 1162 proven. 0 refuted. 0 times theorem prover too weak. 819 trivial. 0 not checked. [2021-11-23 17:13:19,548 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 17:13:19,548 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-23 17:13:19,548 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1017340184] [2021-11-23 17:13:19,548 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1017340184] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 17:13:19,549 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 17:13:19,549 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 17:13:19,549 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1162172888] [2021-11-23 17:13:19,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 17:13:19,549 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 17:13:19,550 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-23 17:13:19,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 17:13:19,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 17:13:19,550 INFO L87 Difference]: Start difference. First operand 4153 states and 5272 transitions. Second operand has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 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) [2021-11-23 17:13:19,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 17:13:19,813 INFO L93 Difference]: Finished difference Result 8893 states and 11543 transitions. [2021-11-23 17:13:19,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 17:13:19,814 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 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 433 [2021-11-23 17:13:19,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 17:13:19,845 INFO L225 Difference]: With dead ends: 8893 [2021-11-23 17:13:19,849 INFO L226 Difference]: Without dead ends: 4761 [2021-11-23 17:13:19,855 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 432 GetRequests, 431 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 17:13:19,856 INFO L933 BasicCegarLoop]: 179 mSDtfsCounter, 11 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 265 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-23 17:13:19,856 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 265 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-23 17:13:19,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4761 states. [2021-11-23 17:13:19,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4761 to 4729. [2021-11-23 17:13:20,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4729 states, 4728 states have (on average 1.2538071065989849) internal successors, (5928), 4728 states have internal predecessors, (5928), 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) [2021-11-23 17:13:20,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4729 states to 4729 states and 5928 transitions. [2021-11-23 17:13:20,020 INFO L78 Accepts]: Start accepts. Automaton has 4729 states and 5928 transitions. Word has length 433 [2021-11-23 17:13:20,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 17:13:20,021 INFO L470 AbstractCegarLoop]: Abstraction has 4729 states and 5928 transitions. [2021-11-23 17:13:20,022 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 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) [2021-11-23 17:13:20,022 INFO L276 IsEmpty]: Start isEmpty. Operand 4729 states and 5928 transitions. [2021-11-23 17:13:20,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 467 [2021-11-23 17:13:20,029 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 17:13:20,029 INFO L514 BasicCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 13, 13, 12, 12, 11, 11, 10, 10, 10, 10, 8, 7, 7, 6, 6, 5, 5, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 17:13:20,042 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e25cd1c-cbd2-411f-86d7-46f024ebae84/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (23)] Forceful destruction successful, exit code 0 [2021-11-23 17:13:20,242 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e25cd1c-cbd2-411f-86d7-46f024ebae84/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 [2021-11-23 17:13:20,242 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 17:13:20,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 17:13:20,243 INFO L85 PathProgramCache]: Analyzing trace with hash 912404788, now seen corresponding path program 1 times [2021-11-23 17:13:20,243 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 17:13:20,243 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [699022139] [2021-11-23 17:13:20,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 17:13:20,244 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 17:13:20,244 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e25cd1c-cbd2-411f-86d7-46f024ebae84/bin/utaipan-fb15Y9Yzbl/mathsat [2021-11-23 17:13:20,245 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e25cd1c-cbd2-411f-86d7-46f024ebae84/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 17:13:20,248 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e25cd1c-cbd2-411f-86d7-46f024ebae84/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (24)] Waiting until timeout for monitored process [2021-11-23 17:13:20,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 17:13:20,447 INFO L263 TraceCheckSpWp]: Trace formula consists of 522 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-23 17:13:20,452 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 17:13:21,116 INFO L134 CoverageAnalysis]: Checked inductivity of 2331 backedges. 1351 proven. 0 refuted. 0 times theorem prover too weak. 980 trivial. 0 not checked. [2021-11-23 17:13:21,116 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 17:13:21,116 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-23 17:13:21,117 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [699022139] [2021-11-23 17:13:21,117 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [699022139] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 17:13:21,117 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 17:13:21,117 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 17:13:21,117 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1943233336] [2021-11-23 17:13:21,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 17:13:21,118 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 17:13:21,119 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-23 17:13:21,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 17:13:21,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 17:13:21,120 INFO L87 Difference]: Start difference. First operand 4729 states and 5928 transitions. Second operand has 3 states, 3 states have (on average 56.666666666666664) internal successors, (170), 3 states have internal predecessors, (170), 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) [2021-11-23 17:13:21,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 17:13:21,435 INFO L93 Difference]: Finished difference Result 9355 states and 11821 transitions. [2021-11-23 17:13:21,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 17:13:21,437 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 56.666666666666664) internal successors, (170), 3 states have internal predecessors, (170), 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 466 [2021-11-23 17:13:21,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 17:13:21,447 INFO L225 Difference]: With dead ends: 9355 [2021-11-23 17:13:21,448 INFO L226 Difference]: Without dead ends: 4197 [2021-11-23 17:13:21,455 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 465 GetRequests, 464 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 17:13:21,456 INFO L933 BasicCegarLoop]: 178 mSDtfsCounter, 14 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 116 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 264 SdHoareTripleChecker+Invalid, 140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-23 17:13:21,457 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [14 Valid, 264 Invalid, 140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-23 17:13:21,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4197 states. [2021-11-23 17:13:21,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4197 to 3719. [2021-11-23 17:13:21,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3719 states, 3718 states have (on average 1.2205486820871436) internal successors, (4538), 3718 states have internal predecessors, (4538), 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) [2021-11-23 17:13:21,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3719 states to 3719 states and 4538 transitions. [2021-11-23 17:13:21,548 INFO L78 Accepts]: Start accepts. Automaton has 3719 states and 4538 transitions. Word has length 466 [2021-11-23 17:13:21,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 17:13:21,549 INFO L470 AbstractCegarLoop]: Abstraction has 3719 states and 4538 transitions. [2021-11-23 17:13:21,549 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 56.666666666666664) internal successors, (170), 3 states have internal predecessors, (170), 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) [2021-11-23 17:13:21,549 INFO L276 IsEmpty]: Start isEmpty. Operand 3719 states and 4538 transitions. [2021-11-23 17:13:21,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 505 [2021-11-23 17:13:21,568 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 17:13:21,569 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 14, 14, 13, 13, 12, 12, 11, 11, 11, 11, 9, 8, 8, 7, 7, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 17:13:21,585 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e25cd1c-cbd2-411f-86d7-46f024ebae84/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (24)] Forceful destruction successful, exit code 0 [2021-11-23 17:13:21,781 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e25cd1c-cbd2-411f-86d7-46f024ebae84/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 [2021-11-23 17:13:21,781 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 17:13:21,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 17:13:21,782 INFO L85 PathProgramCache]: Analyzing trace with hash 325769247, now seen corresponding path program 1 times [2021-11-23 17:13:21,782 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 17:13:21,782 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2069437183] [2021-11-23 17:13:21,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 17:13:21,783 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 17:13:21,783 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e25cd1c-cbd2-411f-86d7-46f024ebae84/bin/utaipan-fb15Y9Yzbl/mathsat [2021-11-23 17:13:21,783 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e25cd1c-cbd2-411f-86d7-46f024ebae84/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 17:13:21,785 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e25cd1c-cbd2-411f-86d7-46f024ebae84/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (25)] Waiting until timeout for monitored process [2021-11-23 17:13:21,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 17:13:21,977 INFO L263 TraceCheckSpWp]: Trace formula consists of 561 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-23 17:13:21,982 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 17:13:22,660 INFO L134 CoverageAnalysis]: Checked inductivity of 2727 backedges. 1308 proven. 26 refuted. 0 times theorem prover too weak. 1393 trivial. 0 not checked. [2021-11-23 17:13:22,660 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 17:13:23,277 INFO L134 CoverageAnalysis]: Checked inductivity of 2727 backedges. 1308 proven. 26 refuted. 0 times theorem prover too weak. 1393 trivial. 0 not checked. [2021-11-23 17:13:23,277 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-23 17:13:23,277 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2069437183] [2021-11-23 17:13:23,277 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2069437183] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 17:13:23,277 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [883123508] [2021-11-23 17:13:23,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 17:13:23,278 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-23 17:13:23,278 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e25cd1c-cbd2-411f-86d7-46f024ebae84/bin/utaipan-fb15Y9Yzbl/cvc4 [2021-11-23 17:13:23,278 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e25cd1c-cbd2-411f-86d7-46f024ebae84/bin/utaipan-fb15Y9Yzbl/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-23 17:13:23,279 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e25cd1c-cbd2-411f-86d7-46f024ebae84/bin/utaipan-fb15Y9Yzbl/cvc4 --incremental --print-success --lang smt (26)] Waiting until timeout for monitored process [2021-11-23 17:13:23,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 17:13:23,453 INFO L263 TraceCheckSpWp]: Trace formula consists of 561 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-23 17:13:23,457 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 17:13:24,173 INFO L134 CoverageAnalysis]: Checked inductivity of 2727 backedges. 1308 proven. 26 refuted. 0 times theorem prover too weak. 1393 trivial. 0 not checked. [2021-11-23 17:13:24,173 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 17:13:24,761 INFO L134 CoverageAnalysis]: Checked inductivity of 2727 backedges. 1308 proven. 26 refuted. 0 times theorem prover too weak. 1393 trivial. 0 not checked. [2021-11-23 17:13:24,762 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [883123508] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 17:13:24,762 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [431741562] [2021-11-23 17:13:24,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 17:13:24,762 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 17:13:24,762 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e25cd1c-cbd2-411f-86d7-46f024ebae84/bin/utaipan-fb15Y9Yzbl/z3 [2021-11-23 17:13:24,771 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e25cd1c-cbd2-411f-86d7-46f024ebae84/bin/utaipan-fb15Y9Yzbl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 17:13:24,772 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e25cd1c-cbd2-411f-86d7-46f024ebae84/bin/utaipan-fb15Y9Yzbl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2021-11-23 17:13:24,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 17:13:24,902 INFO L263 TraceCheckSpWp]: Trace formula consists of 561 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-23 17:13:24,907 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 17:13:25,604 INFO L134 CoverageAnalysis]: Checked inductivity of 2727 backedges. 1308 proven. 26 refuted. 0 times theorem prover too weak. 1393 trivial. 0 not checked. [2021-11-23 17:13:25,604 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 17:13:26,189 INFO L134 CoverageAnalysis]: Checked inductivity of 2727 backedges. 1308 proven. 26 refuted. 0 times theorem prover too weak. 1393 trivial. 0 not checked. [2021-11-23 17:13:26,189 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [431741562] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 17:13:26,189 INFO L186 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2021-11-23 17:13:26,190 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4, 4, 4, 4] total 6 [2021-11-23 17:13:26,190 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [454457248] [2021-11-23 17:13:26,191 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2021-11-23 17:13:26,193 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-23 17:13:26,193 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-23 17:13:26,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-23 17:13:26,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-23 17:13:26,194 INFO L87 Difference]: Start difference. First operand 3719 states and 4538 transitions. Second operand has 6 states, 6 states have (on average 46.0) internal successors, (276), 6 states have internal predecessors, (276), 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) [2021-11-23 17:13:26,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 17:13:26,687 INFO L93 Difference]: Finished difference Result 5040 states and 6159 transitions. [2021-11-23 17:13:26,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-23 17:13:26,688 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 46.0) internal successors, (276), 6 states have internal predecessors, (276), 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 504 [2021-11-23 17:13:26,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 17:13:26,689 INFO L225 Difference]: With dead ends: 5040 [2021-11-23 17:13:26,689 INFO L226 Difference]: Without dead ends: 0 [2021-11-23 17:13:26,695 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3024 GetRequests, 3017 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-11-23 17:13:26,696 INFO L933 BasicCegarLoop]: 181 mSDtfsCounter, 246 mSDsluCounter, 301 mSDsCounter, 0 mSdLazyCounter, 378 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 246 SdHoareTripleChecker+Valid, 482 SdHoareTripleChecker+Invalid, 429 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 378 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-23 17:13:26,697 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [246 Valid, 482 Invalid, 429 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 378 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-11-23 17:13:26,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-23 17:13:26,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-23 17:13:26,698 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) [2021-11-23 17:13:26,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-23 17:13:26,698 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 504 [2021-11-23 17:13:26,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 17:13:26,699 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-23 17:13:26,699 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 46.0) internal successors, (276), 6 states have internal predecessors, (276), 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) [2021-11-23 17:13:26,699 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-23 17:13:26,699 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-23 17:13:26,703 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-23 17:13:26,709 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e25cd1c-cbd2-411f-86d7-46f024ebae84/bin/utaipan-fb15Y9Yzbl/cvc4 --incremental --print-success --lang smt (26)] Forceful destruction successful, exit code 0 [2021-11-23 17:13:26,913 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e25cd1c-cbd2-411f-86d7-46f024ebae84/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (25)] Ended with exit code 0 [2021-11-23 17:13:27,127 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e25cd1c-cbd2-411f-86d7-46f024ebae84/bin/utaipan-fb15Y9Yzbl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Ended with exit code 0 [2021-11-23 17:13:27,305 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e25cd1c-cbd2-411f-86d7-46f024ebae84/bin/utaipan-fb15Y9Yzbl/cvc4 --incremental --print-success --lang smt,25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e25cd1c-cbd2-411f-86d7-46f024ebae84/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3,27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e25cd1c-cbd2-411f-86d7-46f024ebae84/bin/utaipan-fb15Y9Yzbl/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 17:13:27,308 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-23 17:13:30,600 INFO L854 garLoopResultBuilder]: At program point L597(lines 109 665) the Hoare annotation is: (let ((.cse4 (= |ULTIMATE.start_ssl3_accept_~blastFlag~0#1| (_ bv3 32))) (.cse5 (= (_ bv8448 32) |ULTIMATE.start_ssl3_accept_~s__state~0#1|)) (.cse6 (= (_ bv8496 32) |ULTIMATE.start_ssl3_accept_~s__state~0#1|)) (.cse3 (= (_ bv8640 32) |ULTIMATE.start_ssl3_accept_~s__state~0#1|)) (.cse8 (= (_ bv8592 32) |ULTIMATE.start_ssl3_accept_~s__state~0#1|)) (.cse7 (= |ULTIMATE.start_ssl3_accept_~s__s3__tmp__next_state___0~0#1| (_ bv8576 32))) (.cse2 (not (= |ULTIMATE.start_ssl3_accept_~s__hit~0#1| (_ bv0 32)))) (.cse9 (= (_ bv8608 32) |ULTIMATE.start_ssl3_accept_~s__state~0#1|)) (.cse1 (not (= |ULTIMATE.start_ssl3_accept_~s__s3__tmp__next_state___0~0#1| (_ bv8640 32)))) (.cse0 (= |ULTIMATE.start_ssl3_accept_~blastFlag~0#1| (_ bv2 32)))) (or (and .cse0 (= |ULTIMATE.start_ssl3_accept_~s__state~0#1| (_ bv8466 32)) .cse1) (and .cse2 .cse3) (and .cse2 .cse0) (and .cse0 (= (_ bv8560 32) |ULTIMATE.start_ssl3_accept_~s__state~0#1|)) (and .cse4 (= (_ bv8672 32) |ULTIMATE.start_ssl3_accept_~s__state~0#1|) .cse1) (and .cse4 (= |ULTIMATE.start_ssl3_accept_~s__s3__tmp__next_state___0~0#1| (_ bv3 32)) .cse5) (and (= |ULTIMATE.start_ssl3_accept_~blastFlag~0#1| (_ bv1 32)) .cse6) (and .cse0 (= (_ bv8544 32) |ULTIMATE.start_ssl3_accept_~s__state~0#1|)) (and .cse2 .cse4) (and .cse0 .cse7 (= (_ bv8576 32) |ULTIMATE.start_ssl3_accept_~s__state~0#1|)) (and .cse0 .cse8 .cse7) (and .cse0 .cse7 .cse5) (and .cse0 .cse6 .cse1) (and .cse0 .cse7 .cse3) (and .cse0 (= (_ bv8512 32) |ULTIMATE.start_ssl3_accept_~s__state~0#1|)) (and .cse2 .cse8) (and .cse0 .cse9 .cse7) (= (_ bv3 32) |ULTIMATE.start_ssl3_accept_~s__state~0#1|) (and .cse2 .cse9) (and .cse0 (= (_ bv8656 32) |ULTIMATE.start_ssl3_accept_~s__state~0#1|) .cse1) (and .cse0 (= (_ bv8528 32) |ULTIMATE.start_ssl3_accept_~s__state~0#1|)))) [2021-11-23 17:13:30,601 INFO L858 garLoopResultBuilder]: For program point L564(lines 564 568) no Hoare annotation was computed. [2021-11-23 17:13:30,601 INFO L858 garLoopResultBuilder]: For program point L399(lines 399 405) no Hoare annotation was computed. [2021-11-23 17:13:30,601 INFO L858 garLoopResultBuilder]: For program point L366(lines 366 385) no Hoare annotation was computed. [2021-11-23 17:13:30,601 INFO L858 garLoopResultBuilder]: For program point L499(lines 499 503) no Hoare annotation was computed. [2021-11-23 17:13:30,601 INFO L858 garLoopResultBuilder]: For program point L367(lines 367 371) no Hoare annotation was computed. [2021-11-23 17:13:30,602 INFO L858 garLoopResultBuilder]: For program point L367-2(lines 366 383) no Hoare annotation was computed. [2021-11-23 17:13:30,602 INFO L858 garLoopResultBuilder]: For program point L202(lines 202 604) no Hoare annotation was computed. [2021-11-23 17:13:30,602 INFO L858 garLoopResultBuilder]: For program point L169(lines 169 615) no Hoare annotation was computed. [2021-11-23 17:13:30,602 INFO L858 garLoopResultBuilder]: For program point L136(lines 136 626) no Hoare annotation was computed. [2021-11-23 17:13:30,602 INFO L858 garLoopResultBuilder]: For program point L467(lines 467 471) no Hoare annotation was computed. [2021-11-23 17:13:30,603 INFO L858 garLoopResultBuilder]: For program point L335-1(lines 335 344) no Hoare annotation was computed. [2021-11-23 17:13:30,603 INFO L861 garLoopResultBuilder]: At program point L666(lines 108 667) the Hoare annotation is: true [2021-11-23 17:13:30,603 INFO L858 garLoopResultBuilder]: For program point L205(lines 205 603) no Hoare annotation was computed. [2021-11-23 17:13:30,603 INFO L858 garLoopResultBuilder]: For program point L172(lines 172 614) no Hoare annotation was computed. [2021-11-23 17:13:30,603 INFO L858 garLoopResultBuilder]: For program point L139(lines 139 625) no Hoare annotation was computed. [2021-11-23 17:13:30,603 INFO L858 garLoopResultBuilder]: For program point L635(lines 635 663) no Hoare annotation was computed. [2021-11-23 17:13:30,604 INFO L858 garLoopResultBuilder]: For program point L239(lines 239 256) no Hoare annotation was computed. [2021-11-23 17:13:30,604 INFO L854 garLoopResultBuilder]: At program point L206(lines 202 604) the Hoare annotation is: (let ((.cse0 (not (= |ULTIMATE.start_ssl3_accept_~s__hit~0#1| (_ bv0 32)))) (.cse1 (= |ULTIMATE.start_ssl3_accept_~blastFlag~0#1| (_ bv2 32)))) (or (and .cse0 .cse1) (and .cse0 (= |ULTIMATE.start_ssl3_accept_~blastFlag~0#1| (_ bv3 32))) (and .cse1 (not (= (_ bv8640 32) |ULTIMATE.start_ssl3_accept_~s__state~0#1|)) (not (= |ULTIMATE.start_ssl3_accept_~s__s3__tmp__next_state___0~0#1| (_ bv8640 32)))))) [2021-11-23 17:13:30,604 INFO L854 garLoopResultBuilder]: At program point L173(lines 169 615) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_ssl3_accept_~blastFlag~0#1| (_ bv2 32))) (.cse1 (not (= |ULTIMATE.start_ssl3_accept_~s__hit~0#1| (_ bv0 32))))) (or (and .cse0 (not (= (_ bv8640 32) |ULTIMATE.start_ssl3_accept_~s__state~0#1|))) (and .cse1 .cse0) (and .cse1 (= |ULTIMATE.start_ssl3_accept_~blastFlag~0#1| (_ bv3 32))))) [2021-11-23 17:13:30,604 INFO L858 garLoopResultBuilder]: For program point L239-2(lines 219 596) no Hoare annotation was computed. [2021-11-23 17:13:30,604 INFO L858 garLoopResultBuilder]: For program point L636(lines 636 660) no Hoare annotation was computed. [2021-11-23 17:13:30,605 INFO L858 garLoopResultBuilder]: For program point L570(lines 570 574) no Hoare annotation was computed. [2021-11-23 17:13:30,605 INFO L858 garLoopResultBuilder]: For program point L537(lines 537 541) no Hoare annotation was computed. [2021-11-23 17:13:30,605 INFO L858 garLoopResultBuilder]: For program point L570-2(lines 570 574) no Hoare annotation was computed. [2021-11-23 17:13:30,605 INFO L858 garLoopResultBuilder]: For program point L537-2(lines 219 596) no Hoare annotation was computed. [2021-11-23 17:13:30,605 INFO L858 garLoopResultBuilder]: For program point L339(lines 339 343) no Hoare annotation was computed. [2021-11-23 17:13:30,606 INFO L858 garLoopResultBuilder]: For program point L670(lines 670 674) no Hoare annotation was computed. [2021-11-23 17:13:30,606 INFO L858 garLoopResultBuilder]: For program point L637(lines 637 646) no Hoare annotation was computed. [2021-11-23 17:13:30,606 INFO L858 garLoopResultBuilder]: For program point L670-2(lines 670 674) no Hoare annotation was computed. [2021-11-23 17:13:30,606 INFO L858 garLoopResultBuilder]: For program point L637-2(lines 636 658) no Hoare annotation was computed. [2021-11-23 17:13:30,606 INFO L858 garLoopResultBuilder]: For program point L472(lines 472 483) no Hoare annotation was computed. [2021-11-23 17:13:30,606 INFO L858 garLoopResultBuilder]: For program point L439(lines 439 443) no Hoare annotation was computed. [2021-11-23 17:13:30,607 INFO L854 garLoopResultBuilder]: At program point L373(lines 356 391) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_ssl3_accept_~blastFlag~0#1| (_ bv2 32))) (.cse1 (not (= |ULTIMATE.start_ssl3_accept_~s__hit~0#1| (_ bv0 32))))) (or (and .cse0 (not (= (_ bv8640 32) |ULTIMATE.start_ssl3_accept_~s__state~0#1|))) (and .cse1 .cse0) (and .cse1 (= |ULTIMATE.start_ssl3_accept_~blastFlag~0#1| (_ bv3 32))))) [2021-11-23 17:13:30,607 INFO L858 garLoopResultBuilder]: For program point L241(lines 241 246) no Hoare annotation was computed. [2021-11-23 17:13:30,607 INFO L858 garLoopResultBuilder]: For program point L208(lines 208 602) no Hoare annotation was computed. [2021-11-23 17:13:30,607 INFO L858 garLoopResultBuilder]: For program point L175(lines 175 613) no Hoare annotation was computed. [2021-11-23 17:13:30,607 INFO L858 garLoopResultBuilder]: For program point L142(lines 142 624) no Hoare annotation was computed. [2021-11-23 17:13:30,608 INFO L854 garLoopResultBuilder]: At program point L109-2(lines 109 665) the Hoare annotation is: (let ((.cse4 (= |ULTIMATE.start_ssl3_accept_~blastFlag~0#1| (_ bv3 32))) (.cse5 (= (_ bv8448 32) |ULTIMATE.start_ssl3_accept_~s__state~0#1|)) (.cse6 (= (_ bv8496 32) |ULTIMATE.start_ssl3_accept_~s__state~0#1|)) (.cse3 (= (_ bv8640 32) |ULTIMATE.start_ssl3_accept_~s__state~0#1|)) (.cse8 (= (_ bv8592 32) |ULTIMATE.start_ssl3_accept_~s__state~0#1|)) (.cse7 (= |ULTIMATE.start_ssl3_accept_~s__s3__tmp__next_state___0~0#1| (_ bv8576 32))) (.cse2 (not (= |ULTIMATE.start_ssl3_accept_~s__hit~0#1| (_ bv0 32)))) (.cse9 (= (_ bv8608 32) |ULTIMATE.start_ssl3_accept_~s__state~0#1|)) (.cse1 (not (= |ULTIMATE.start_ssl3_accept_~s__s3__tmp__next_state___0~0#1| (_ bv8640 32)))) (.cse0 (= |ULTIMATE.start_ssl3_accept_~blastFlag~0#1| (_ bv2 32)))) (or (and .cse0 (= |ULTIMATE.start_ssl3_accept_~s__state~0#1| (_ bv8466 32)) .cse1) (and .cse2 .cse3) (and .cse2 .cse0) (and .cse0 (= (_ bv8560 32) |ULTIMATE.start_ssl3_accept_~s__state~0#1|)) (and .cse4 (= (_ bv8672 32) |ULTIMATE.start_ssl3_accept_~s__state~0#1|) .cse1) (and .cse4 (= |ULTIMATE.start_ssl3_accept_~s__s3__tmp__next_state___0~0#1| (_ bv3 32)) .cse5) (and (= |ULTIMATE.start_ssl3_accept_~blastFlag~0#1| (_ bv1 32)) .cse6) (and .cse0 (= (_ bv8544 32) |ULTIMATE.start_ssl3_accept_~s__state~0#1|)) (and .cse2 .cse4) (and .cse0 .cse7 (= (_ bv8576 32) |ULTIMATE.start_ssl3_accept_~s__state~0#1|)) (and (= |ULTIMATE.start_ssl3_accept_~s__state~0#1| (_ bv8464 32)) (= |ULTIMATE.start_ssl3_accept_~blastFlag~0#1| (_ bv0 32))) (and .cse0 .cse8 .cse7) (and .cse0 .cse7 .cse5) (and .cse0 .cse6 .cse1) (and .cse0 .cse7 .cse3) (and .cse0 (= (_ bv8512 32) |ULTIMATE.start_ssl3_accept_~s__state~0#1|)) (and .cse2 .cse8) (and .cse0 .cse9 .cse7) (= (_ bv3 32) |ULTIMATE.start_ssl3_accept_~s__state~0#1|) (and .cse2 .cse9) (and .cse0 (= (_ bv8656 32) |ULTIMATE.start_ssl3_accept_~s__state~0#1|) .cse1) (and .cse0 (= (_ bv8528 32) |ULTIMATE.start_ssl3_accept_~s__state~0#1|)))) [2021-11-23 17:13:30,608 INFO L854 garLoopResultBuilder]: At program point L407(lines 398 429) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_ssl3_accept_~blastFlag~0#1| (_ bv2 32))) (.cse1 (not (= |ULTIMATE.start_ssl3_accept_~s__hit~0#1| (_ bv0 32))))) (or (and .cse0 (not (= (_ bv8640 32) |ULTIMATE.start_ssl3_accept_~s__state~0#1|))) (and .cse1 .cse0) (and .cse1 (= |ULTIMATE.start_ssl3_accept_~blastFlag~0#1| (_ bv3 32))))) [2021-11-23 17:13:30,608 INFO L854 garLoopResultBuilder]: At program point L176(lines 175 613) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_ssl3_accept_~blastFlag~0#1| (_ bv3 32))) (.cse3 (not (= |ULTIMATE.start_ssl3_accept_~s__hit~0#1| (_ bv0 32)))) (.cse2 (= |ULTIMATE.start_ssl3_accept_~blastFlag~0#1| (_ bv2 32))) (.cse1 (= (_ bv8448 32) |ULTIMATE.start_ssl3_accept_~s__state~0#1|))) (or (and .cse0 (= |ULTIMATE.start_ssl3_accept_~s__s3__tmp__next_state___0~0#1| (_ bv3 32)) .cse1) (and .cse2 (= |ULTIMATE.start_ssl3_accept_~s__s3__tmp__next_state___0~0#1| (_ bv8576 32)) .cse1) (and .cse3 .cse0 .cse1) (and .cse3 .cse2 .cse1))) [2021-11-23 17:13:30,608 INFO L854 garLoopResultBuilder]: At program point L143(lines 136 626) the Hoare annotation is: (let ((.cse0 (not (= |ULTIMATE.start_ssl3_accept_~s__hit~0#1| (_ bv0 32)))) (.cse1 (= |ULTIMATE.start_ssl3_accept_~blastFlag~0#1| (_ bv2 32))) (.cse2 (not (= (_ bv8640 32) |ULTIMATE.start_ssl3_accept_~s__state~0#1|)))) (or (and .cse0 .cse1) (and .cse0 (= |ULTIMATE.start_ssl3_accept_~blastFlag~0#1| (_ bv3 32))) (and .cse1 .cse2 (not (= |ULTIMATE.start_ssl3_accept_~s__s3__tmp__next_state___0~0#1| (_ bv8640 32)))) (and .cse2 (= |ULTIMATE.start_ssl3_accept_~blastFlag~0#1| (_ bv0 32))))) [2021-11-23 17:13:30,609 INFO L858 garLoopResultBuilder]: For program point L110(line 110) no Hoare annotation was computed. [2021-11-23 17:13:30,609 INFO L858 garLoopResultBuilder]: For program point L639(lines 639 643) no Hoare annotation was computed. [2021-11-23 17:13:30,609 INFO L858 garLoopResultBuilder]: For program point L375(lines 375 379) no Hoare annotation was computed. [2021-11-23 17:13:30,609 INFO L858 garLoopResultBuilder]: For program point L409(lines 409 415) no Hoare annotation was computed. [2021-11-23 17:13:30,609 INFO L858 garLoopResultBuilder]: For program point L211(lines 211 601) no Hoare annotation was computed. [2021-11-23 17:13:30,609 INFO L858 garLoopResultBuilder]: For program point L178(lines 178 612) no Hoare annotation was computed. [2021-11-23 17:13:30,610 INFO L858 garLoopResultBuilder]: For program point L145(lines 145 623) no Hoare annotation was computed. [2021-11-23 17:13:30,610 INFO L858 garLoopResultBuilder]: For program point L112(lines 112 634) no Hoare annotation was computed. [2021-11-23 17:13:30,610 INFO L858 garLoopResultBuilder]: For program point L476(lines 476 480) no Hoare annotation was computed. [2021-11-23 17:13:30,610 INFO L854 garLoopResultBuilder]: At program point L212(lines 208 602) the Hoare annotation is: (let ((.cse1 (not (= |ULTIMATE.start_ssl3_accept_~s__hit~0#1| (_ bv0 32)))) (.cse0 (= |ULTIMATE.start_ssl3_accept_~blastFlag~0#1| (_ bv3 32)))) (or (and .cse0 (not (= (_ bv8640 32) |ULTIMATE.start_ssl3_accept_~s__state~0#1|)) (not (= |ULTIMATE.start_ssl3_accept_~s__s3__tmp__next_state___0~0#1| (_ bv8640 32)))) (and .cse1 (= |ULTIMATE.start_ssl3_accept_~blastFlag~0#1| (_ bv2 32))) (and .cse1 .cse0))) [2021-11-23 17:13:30,610 INFO L861 garLoopResultBuilder]: At program point L113(lines 112 634) the Hoare annotation is: true [2021-11-23 17:13:30,610 INFO L858 garLoopResultBuilder]: For program point L510(lines 510 514) no Hoare annotation was computed. [2021-11-23 17:13:30,611 INFO L858 garLoopResultBuilder]: For program point L510-2(lines 219 596) no Hoare annotation was computed. [2021-11-23 17:13:30,611 INFO L858 garLoopResultBuilder]: For program point L247(lines 247 252) no Hoare annotation was computed. [2021-11-23 17:13:30,611 INFO L858 garLoopResultBuilder]: For program point L214(lines 214 600) no Hoare annotation was computed. [2021-11-23 17:13:30,611 INFO L858 garLoopResultBuilder]: For program point L181(lines 181 611) no Hoare annotation was computed. [2021-11-23 17:13:30,611 INFO L858 garLoopResultBuilder]: For program point L148(lines 148 622) no Hoare annotation was computed. [2021-11-23 17:13:30,612 INFO L858 garLoopResultBuilder]: For program point L115(lines 115 633) no Hoare annotation was computed. [2021-11-23 17:13:30,612 INFO L861 garLoopResultBuilder]: At program point L215(lines 214 600) the Hoare annotation is: true [2021-11-23 17:13:30,612 INFO L854 garLoopResultBuilder]: At program point L182(lines 178 612) the Hoare annotation is: (let ((.cse0 (not (= |ULTIMATE.start_ssl3_accept_~s__hit~0#1| (_ bv0 32)))) (.cse1 (= |ULTIMATE.start_ssl3_accept_~blastFlag~0#1| (_ bv2 32)))) (or (and .cse0 .cse1) (and .cse0 (= |ULTIMATE.start_ssl3_accept_~blastFlag~0#1| (_ bv3 32))) (and .cse1 (not (= (_ bv8640 32) |ULTIMATE.start_ssl3_accept_~s__state~0#1|)) (= |ULTIMATE.start_ssl3_accept_~s__s3__tmp__next_state___0~0#1| (_ bv8576 32))))) [2021-11-23 17:13:30,612 INFO L854 garLoopResultBuilder]: At program point L149(lines 145 623) the Hoare annotation is: (let ((.cse1 (= |ULTIMATE.start_ssl3_accept_~blastFlag~0#1| (_ bv2 32))) (.cse3 (not (= (_ bv8640 32) |ULTIMATE.start_ssl3_accept_~s__state~0#1|))) (.cse0 (not (= |ULTIMATE.start_ssl3_accept_~s__hit~0#1| (_ bv0 32)))) (.cse2 (= |ULTIMATE.start_ssl3_accept_~blastFlag~0#1| (_ bv1 32)))) (or (and .cse0 .cse1) (and .cse0 (= |ULTIMATE.start_ssl3_accept_~blastFlag~0#1| (_ bv3 32))) (and .cse2 .cse3) (and .cse1 .cse3 (not (= |ULTIMATE.start_ssl3_accept_~s__s3__tmp__next_state___0~0#1| (_ bv8640 32)))) (and .cse0 .cse2))) [2021-11-23 17:13:30,612 INFO L858 garLoopResultBuilder]: For program point L83(lines 83 91) no Hoare annotation was computed. [2021-11-23 17:13:30,613 INFO L858 garLoopResultBuilder]: For program point L282(lines 282 286) no Hoare annotation was computed. [2021-11-23 17:13:30,613 INFO L858 garLoopResultBuilder]: For program point L580(lines 580 590) no Hoare annotation was computed. [2021-11-23 17:13:30,613 INFO L858 garLoopResultBuilder]: For program point L580-1(lines 580 590) no Hoare annotation was computed. [2021-11-23 17:13:30,613 INFO L858 garLoopResultBuilder]: For program point L316(lines 316 320) no Hoare annotation was computed. [2021-11-23 17:13:30,613 INFO L858 garLoopResultBuilder]: For program point L316-2(lines 219 596) no Hoare annotation was computed. [2021-11-23 17:13:30,613 INFO L858 garLoopResultBuilder]: For program point L184(lines 184 610) no Hoare annotation was computed. [2021-11-23 17:13:30,614 INFO L858 garLoopResultBuilder]: For program point L151(lines 151 621) no Hoare annotation was computed. [2021-11-23 17:13:30,614 INFO L858 garLoopResultBuilder]: For program point L118(lines 118 632) no Hoare annotation was computed. [2021-11-23 17:13:30,614 INFO L858 garLoopResultBuilder]: For program point L449-1(lines 449 461) no Hoare annotation was computed. [2021-11-23 17:13:30,614 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-11-23 17:13:30,614 INFO L861 garLoopResultBuilder]: At program point L218(lines 217 599) the Hoare annotation is: true [2021-11-23 17:13:30,614 INFO L858 garLoopResultBuilder]: For program point L86(lines 86 90) no Hoare annotation was computed. [2021-11-23 17:13:30,615 INFO L858 garLoopResultBuilder]: For program point L86-2(lines 83 91) no Hoare annotation was computed. [2021-11-23 17:13:30,615 INFO L861 garLoopResultBuilder]: At program point L681(lines 74 683) the Hoare annotation is: true [2021-11-23 17:13:30,615 INFO L858 garLoopResultBuilder]: For program point L648(lines 648 654) no Hoare annotation was computed. [2021-11-23 17:13:30,615 INFO L858 garLoopResultBuilder]: For program point L549(lines 549 554) no Hoare annotation was computed. [2021-11-23 17:13:30,615 INFO L854 garLoopResultBuilder]: At program point L417(lines 408 428) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_ssl3_accept_~blastFlag~0#1| (_ bv2 32))) (.cse1 (not (= |ULTIMATE.start_ssl3_accept_~s__hit~0#1| (_ bv0 32))))) (or (and .cse0 (not (= (_ bv8640 32) |ULTIMATE.start_ssl3_accept_~s__state~0#1|))) (and .cse1 .cse0) (and .cse1 (= |ULTIMATE.start_ssl3_accept_~blastFlag~0#1| (_ bv3 32))))) [2021-11-23 17:13:30,615 INFO L858 garLoopResultBuilder]: For program point L351(lines 351 355) no Hoare annotation was computed. [2021-11-23 17:13:30,616 INFO L858 garLoopResultBuilder]: For program point L351-2(lines 219 596) no Hoare annotation was computed. [2021-11-23 17:13:30,616 INFO L861 garLoopResultBuilder]: At program point L682(lines 19 684) the Hoare annotation is: true [2021-11-23 17:13:30,616 INFO L858 garLoopResultBuilder]: For program point L583(lines 583 587) no Hoare annotation was computed. [2021-11-23 17:13:30,616 INFO L858 garLoopResultBuilder]: For program point L187(lines 187 609) no Hoare annotation was computed. [2021-11-23 17:13:30,616 INFO L858 garLoopResultBuilder]: For program point L154(lines 154 620) no Hoare annotation was computed. [2021-11-23 17:13:30,617 INFO L858 garLoopResultBuilder]: For program point L121(lines 121 631) no Hoare annotation was computed. [2021-11-23 17:13:30,617 INFO L858 garLoopResultBuilder]: For program point L452(lines 452 457) no Hoare annotation was computed. [2021-11-23 17:13:30,617 INFO L854 garLoopResultBuilder]: At program point L188(lines 184 610) the Hoare annotation is: (or (not (= |ULTIMATE.start_ssl3_accept_~s__hit~0#1| (_ bv0 32))) (and (= |ULTIMATE.start_ssl3_accept_~blastFlag~0#1| (_ bv2 32)) (not (= (_ bv8640 32) |ULTIMATE.start_ssl3_accept_~s__state~0#1|)) (= |ULTIMATE.start_ssl3_accept_~s__s3__tmp__next_state___0~0#1| (_ bv8576 32)))) [2021-11-23 17:13:30,617 INFO L854 garLoopResultBuilder]: At program point L155(lines 151 621) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_ssl3_accept_~blastFlag~0#1| (_ bv2 32))) (.cse1 (not (= |ULTIMATE.start_ssl3_accept_~s__hit~0#1| (_ bv0 32))))) (or (and .cse0 (not (= (_ bv8640 32) |ULTIMATE.start_ssl3_accept_~s__state~0#1|))) (and .cse1 .cse0) (and .cse1 (= |ULTIMATE.start_ssl3_accept_~blastFlag~0#1| (_ bv3 32))))) [2021-11-23 17:13:30,617 INFO L858 garLoopResultBuilder]: For program point L420(lines 420 424) no Hoare annotation was computed. [2021-11-23 17:13:30,617 INFO L861 garLoopResultBuilder]: At program point L222(lines 115 633) the Hoare annotation is: true [2021-11-23 17:13:30,618 INFO L858 garLoopResultBuilder]: For program point L520(lines 520 524) no Hoare annotation was computed. [2021-11-23 17:13:30,618 INFO L858 garLoopResultBuilder]: For program point L520-2(lines 520 524) no Hoare annotation was computed. [2021-11-23 17:13:30,618 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-11-23 17:13:30,618 INFO L858 garLoopResultBuilder]: For program point L190(lines 190 608) no Hoare annotation was computed. [2021-11-23 17:13:30,618 INFO L858 garLoopResultBuilder]: For program point L157(lines 157 619) no Hoare annotation was computed. [2021-11-23 17:13:30,619 INFO L858 garLoopResultBuilder]: For program point L124(lines 124 630) no Hoare annotation was computed. [2021-11-23 17:13:30,619 INFO L858 garLoopResultBuilder]: For program point L488(lines 488 492) no Hoare annotation was computed. [2021-11-23 17:13:30,619 INFO L858 garLoopResultBuilder]: For program point L93(lines 93 101) no Hoare annotation was computed. [2021-11-23 17:13:30,619 INFO L858 garLoopResultBuilder]: For program point L93-1(lines 74 683) no Hoare annotation was computed. [2021-11-23 17:13:30,619 INFO L858 garLoopResultBuilder]: For program point L193(lines 193 607) no Hoare annotation was computed. [2021-11-23 17:13:30,619 INFO L858 garLoopResultBuilder]: For program point L160(lines 160 618) no Hoare annotation was computed. [2021-11-23 17:13:30,620 INFO L858 garLoopResultBuilder]: For program point L127(lines 127 629) no Hoare annotation was computed. [2021-11-23 17:13:30,620 INFO L858 garLoopResultBuilder]: For program point L94(lines 94 98) no Hoare annotation was computed. [2021-11-23 17:13:30,620 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-11-23 17:13:30,620 INFO L858 garLoopResultBuilder]: For program point L359(lines 359 390) no Hoare annotation was computed. [2021-11-23 17:13:30,620 INFO L858 garLoopResultBuilder]: For program point L326(lines 326 330) no Hoare annotation was computed. [2021-11-23 17:13:30,620 INFO L858 garLoopResultBuilder]: For program point L326-2(lines 326 330) no Hoare annotation was computed. [2021-11-23 17:13:30,621 INFO L858 garLoopResultBuilder]: For program point L227(lines 227 231) no Hoare annotation was computed. [2021-11-23 17:13:30,621 INFO L854 garLoopResultBuilder]: At program point L194(lines 190 608) the Hoare annotation is: (or (not (= |ULTIMATE.start_ssl3_accept_~s__hit~0#1| (_ bv0 32))) (and (= |ULTIMATE.start_ssl3_accept_~blastFlag~0#1| (_ bv2 32)) (not (= (_ bv8640 32) |ULTIMATE.start_ssl3_accept_~s__state~0#1|)) (= |ULTIMATE.start_ssl3_accept_~s__s3__tmp__next_state___0~0#1| (_ bv8576 32)))) [2021-11-23 17:13:30,621 INFO L854 garLoopResultBuilder]: At program point L161(lines 157 619) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_ssl3_accept_~blastFlag~0#1| (_ bv2 32))) (.cse1 (not (= |ULTIMATE.start_ssl3_accept_~s__hit~0#1| (_ bv0 32))))) (or (and .cse0 (not (= (_ bv8640 32) |ULTIMATE.start_ssl3_accept_~s__state~0#1|))) (and .cse1 .cse0) (and .cse1 (= |ULTIMATE.start_ssl3_accept_~blastFlag~0#1| (_ bv3 32))))) [2021-11-23 17:13:30,621 INFO L858 garLoopResultBuilder]: For program point L227-2(lines 219 596) no Hoare annotation was computed. [2021-11-23 17:13:30,621 INFO L858 garLoopResultBuilder]: For program point L559(lines 559 563) no Hoare annotation was computed. [2021-11-23 17:13:30,621 INFO L858 garLoopResultBuilder]: For program point L196(lines 196 606) no Hoare annotation was computed. [2021-11-23 17:13:30,622 INFO L858 garLoopResultBuilder]: For program point L163(lines 163 617) no Hoare annotation was computed. [2021-11-23 17:13:30,622 INFO L858 garLoopResultBuilder]: For program point L130(lines 130 628) no Hoare annotation was computed. [2021-11-23 17:13:30,622 INFO L854 garLoopResultBuilder]: At program point L560(lines 74 683) the Hoare annotation is: false [2021-11-23 17:13:30,622 INFO L858 garLoopResultBuilder]: For program point L362(lines 362 389) no Hoare annotation was computed. [2021-11-23 17:13:30,622 INFO L858 garLoopResultBuilder]: For program point L362-1(lines 362 389) no Hoare annotation was computed. [2021-11-23 17:13:30,623 INFO L854 garLoopResultBuilder]: At program point L131(lines 127 629) the Hoare annotation is: (let ((.cse0 (not (= |ULTIMATE.start_ssl3_accept_~s__hit~0#1| (_ bv0 32))))) (or (and .cse0 (= |ULTIMATE.start_ssl3_accept_~blastFlag~0#1| (_ bv2 32))) (and .cse0 (= |ULTIMATE.start_ssl3_accept_~blastFlag~0#1| (_ bv3 32))))) [2021-11-23 17:13:30,623 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-11-23 17:13:30,623 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 677) no Hoare annotation was computed. [2021-11-23 17:13:30,623 INFO L858 garLoopResultBuilder]: For program point L363(lines 363 386) no Hoare annotation was computed. [2021-11-23 17:13:30,623 INFO L858 garLoopResultBuilder]: For program point L264(lines 264 276) no Hoare annotation was computed. [2021-11-23 17:13:30,623 INFO L861 garLoopResultBuilder]: At program point L694(lines 685 696) the Hoare annotation is: true [2021-11-23 17:13:30,624 INFO L858 garLoopResultBuilder]: For program point L265(lines 265 270) no Hoare annotation was computed. [2021-11-23 17:13:30,624 INFO L858 garLoopResultBuilder]: For program point L199(lines 199 605) no Hoare annotation was computed. [2021-11-23 17:13:30,624 INFO L858 garLoopResultBuilder]: For program point L166(lines 166 616) no Hoare annotation was computed. [2021-11-23 17:13:30,624 INFO L858 garLoopResultBuilder]: For program point L133(lines 133 627) no Hoare annotation was computed. [2021-11-23 17:13:30,624 INFO L858 garLoopResultBuilder]: For program point L530(lines 530 535) no Hoare annotation was computed. [2021-11-23 17:13:30,624 INFO L858 garLoopResultBuilder]: For program point L398(lines 398 429) no Hoare annotation was computed. [2021-11-23 17:13:30,625 INFO L858 garLoopResultBuilder]: For program point L299(lines 299 303) no Hoare annotation was computed. [2021-11-23 17:13:30,625 INFO L858 garLoopResultBuilder]: For program point L299-2(lines 219 596) no Hoare annotation was computed. [2021-11-23 17:13:30,625 INFO L854 garLoopResultBuilder]: At program point L200(lines 196 606) the Hoare annotation is: (or (not (= |ULTIMATE.start_ssl3_accept_~s__hit~0#1| (_ bv0 32))) (and (= |ULTIMATE.start_ssl3_accept_~blastFlag~0#1| (_ bv2 32)) (= (_ bv8640 32) |ULTIMATE.start_ssl3_accept_~s__state~0#1|) (not (= |ULTIMATE.start_ssl3_accept_~s__s3__tmp__next_state___0~0#1| (_ bv8640 32))))) [2021-11-23 17:13:30,625 INFO L854 garLoopResultBuilder]: At program point L167(lines 163 617) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_ssl3_accept_~blastFlag~0#1| (_ bv2 32))) (.cse1 (not (= |ULTIMATE.start_ssl3_accept_~s__hit~0#1| (_ bv0 32))))) (or (and .cse0 (not (= (_ bv8640 32) |ULTIMATE.start_ssl3_accept_~s__state~0#1|))) (and .cse1 .cse0) (and .cse1 (= |ULTIMATE.start_ssl3_accept_~blastFlag~0#1| (_ bv3 32))))) [2021-11-23 17:13:30,625 INFO L861 garLoopResultBuilder]: At program point L134(lines 133 627) the Hoare annotation is: true [2021-11-23 17:13:30,629 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 17:13:30,631 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-23 17:13:30,666 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 05:13:30 BoogieIcfgContainer [2021-11-23 17:13:30,666 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-23 17:13:30,667 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-23 17:13:30,667 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-23 17:13:30,667 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-23 17:13:30,668 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 05:12:55" (3/4) ... [2021-11-23 17:13:30,671 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-23 17:13:30,691 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2021-11-23 17:13:30,692 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-11-23 17:13:30,693 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-11-23 17:13:30,694 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-23 17:13:30,777 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e25cd1c-cbd2-411f-86d7-46f024ebae84/bin/utaipan-fb15Y9Yzbl/witness.graphml [2021-11-23 17:13:30,777 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-23 17:13:30,778 INFO L158 Benchmark]: Toolchain (without parser) took 36836.04ms. Allocated memory was 58.7MB in the beginning and 237.0MB in the end (delta: 178.3MB). Free memory was 36.1MB in the beginning and 79.9MB in the end (delta: -43.8MB). Peak memory consumption was 134.0MB. Max. memory is 16.1GB. [2021-11-23 17:13:30,779 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 58.7MB. Free memory was 38.8MB in the beginning and 38.8MB in the end (delta: 28.2kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 17:13:30,779 INFO L158 Benchmark]: CACSL2BoogieTranslator took 499.02ms. Allocated memory is still 58.7MB. Free memory was 35.9MB in the beginning and 36.6MB in the end (delta: -744.5kB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-11-23 17:13:30,780 INFO L158 Benchmark]: Boogie Procedure Inliner took 59.00ms. Allocated memory is still 58.7MB. Free memory was 36.6MB in the beginning and 34.0MB in the end (delta: 2.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-23 17:13:30,780 INFO L158 Benchmark]: Boogie Preprocessor took 63.94ms. Allocated memory is still 58.7MB. Free memory was 34.0MB in the beginning and 31.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 17:13:30,781 INFO L158 Benchmark]: RCFGBuilder took 1042.39ms. Allocated memory was 58.7MB in the beginning and 71.3MB in the end (delta: 12.6MB). Free memory was 31.9MB in the beginning and 34.1MB in the end (delta: -2.3MB). Peak memory consumption was 10.9MB. Max. memory is 16.1GB. [2021-11-23 17:13:30,781 INFO L158 Benchmark]: TraceAbstraction took 35048.67ms. Allocated memory was 71.3MB in the beginning and 237.0MB in the end (delta: 165.7MB). Free memory was 33.5MB in the beginning and 89.3MB in the end (delta: -55.8MB). Peak memory consumption was 154.1MB. Max. memory is 16.1GB. [2021-11-23 17:13:30,781 INFO L158 Benchmark]: Witness Printer took 110.85ms. Allocated memory is still 237.0MB. Free memory was 89.3MB in the beginning and 79.9MB in the end (delta: 9.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-23 17:13:30,784 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 58.7MB. Free memory was 38.8MB in the beginning and 38.8MB in the end (delta: 28.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 499.02ms. Allocated memory is still 58.7MB. Free memory was 35.9MB in the beginning and 36.6MB in the end (delta: -744.5kB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 59.00ms. Allocated memory is still 58.7MB. Free memory was 36.6MB in the beginning and 34.0MB in the end (delta: 2.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 63.94ms. Allocated memory is still 58.7MB. Free memory was 34.0MB in the beginning and 31.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1042.39ms. Allocated memory was 58.7MB in the beginning and 71.3MB in the end (delta: 12.6MB). Free memory was 31.9MB in the beginning and 34.1MB in the end (delta: -2.3MB). Peak memory consumption was 10.9MB. Max. memory is 16.1GB. * TraceAbstraction took 35048.67ms. Allocated memory was 71.3MB in the beginning and 237.0MB in the end (delta: 165.7MB). Free memory was 33.5MB in the beginning and 89.3MB in the end (delta: -55.8MB). Peak memory consumption was 154.1MB. Max. memory is 16.1GB. * Witness Printer took 110.85ms. Allocated memory is still 237.0MB. Free memory was 89.3MB in the beginning and 79.9MB in the end (delta: 9.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * 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: 677]: 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, 138 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 34.8s, OverallIterations: 22, TraceHistogramMax: 16, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 5.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 3.3s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1066 SdHoareTripleChecker+Valid, 3.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1066 mSDsluCounter, 7171 SdHoareTripleChecker+Invalid, 2.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2797 mSDsCounter, 333 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2131 IncrementalHoareTripleChecker+Invalid, 2464 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 333 mSolverCounterUnsat, 4374 mSDtfsCounter, 2131 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 9660 GetRequests, 9630 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4729occurred in iteration=20, InterpolantAutomatonStates: 72, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.2s AutomataMinimizationTime, 22 MinimizatonAttempts, 2769 StatesRemovedByMinimization, 15 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 29 LocationsWithAnnotation, 29 PreInvPairs, 268 NumberOfFragments, 834 HoareAnnotationTreeSize, 29 FomulaSimplifications, 952 FormulaSimplificationTreeSizeReduction, 0.7s HoareSimplificationTime, 29 FomulaSimplificationsInter, 2880 FormulaSimplificationTreeSizeReductionInter, 2.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.5s SsaConstructionTime, 2.1s SatisfiabilityAnalysisTime, 15.9s InterpolantComputationTime, 7059 NumberOfCodeBlocks, 7059 NumberOfCodeBlocksAsserted, 26 NumberOfCheckSat, 9652 ConstructedInterpolants, 0 QuantifiedInterpolants, 12902 SizeOfPredicates, 9 NumberOfNonLiveVariables, 8157 ConjunctsInSsa, 61 ConjunctsInUnsatCore, 32 InterpolantComputations, 20 PerfectInterpolantSequences, 37781/38093 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 1 specifications checked. All of them hold - InvariantResult [Line: 196]: Loop Invariant Derived loop invariant: !(s__hit == 0bv32) || ((blastFlag == 2bv32 && 8640bv32 == s__state) && !(s__s3__tmp__next_state___0 == 8640bv32)) - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 208]: Loop Invariant Derived loop invariant: (((blastFlag == 3bv32 && !(8640bv32 == s__state)) && !(s__s3__tmp__next_state___0 == 8640bv32)) || (!(s__hit == 0bv32) && blastFlag == 2bv32)) || (!(s__hit == 0bv32) && blastFlag == 3bv32) - InvariantResult [Line: 408]: Loop Invariant Derived loop invariant: ((blastFlag == 2bv32 && !(8640bv32 == s__state)) || (!(s__hit == 0bv32) && blastFlag == 2bv32)) || (!(s__hit == 0bv32) && blastFlag == 3bv32) - InvariantResult [Line: 217]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 127]: Loop Invariant Derived loop invariant: (!(s__hit == 0bv32) && blastFlag == 2bv32) || (!(s__hit == 0bv32) && blastFlag == 3bv32) - InvariantResult [Line: 112]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 175]: Loop Invariant Derived loop invariant: ((((blastFlag == 3bv32 && s__s3__tmp__next_state___0 == 3bv32) && 8448bv32 == s__state) || ((blastFlag == 2bv32 && s__s3__tmp__next_state___0 == 8576bv32) && 8448bv32 == s__state)) || ((!(s__hit == 0bv32) && blastFlag == 3bv32) && 8448bv32 == s__state)) || ((!(s__hit == 0bv32) && blastFlag == 2bv32) && 8448bv32 == s__state) - InvariantResult [Line: 109]: Loop Invariant Derived loop invariant: (((((((((((((((((((((blastFlag == 2bv32 && s__state == 8466bv32) && !(s__s3__tmp__next_state___0 == 8640bv32)) || (!(s__hit == 0bv32) && 8640bv32 == s__state)) || (!(s__hit == 0bv32) && blastFlag == 2bv32)) || (blastFlag == 2bv32 && 8560bv32 == s__state)) || ((blastFlag == 3bv32 && 8672bv32 == s__state) && !(s__s3__tmp__next_state___0 == 8640bv32))) || ((blastFlag == 3bv32 && s__s3__tmp__next_state___0 == 3bv32) && 8448bv32 == s__state)) || (blastFlag == 1bv32 && 8496bv32 == s__state)) || (blastFlag == 2bv32 && 8544bv32 == s__state)) || (!(s__hit == 0bv32) && blastFlag == 3bv32)) || ((blastFlag == 2bv32 && s__s3__tmp__next_state___0 == 8576bv32) && 8576bv32 == s__state)) || ((blastFlag == 2bv32 && 8592bv32 == s__state) && s__s3__tmp__next_state___0 == 8576bv32)) || ((blastFlag == 2bv32 && s__s3__tmp__next_state___0 == 8576bv32) && 8448bv32 == s__state)) || ((blastFlag == 2bv32 && 8496bv32 == s__state) && !(s__s3__tmp__next_state___0 == 8640bv32))) || ((blastFlag == 2bv32 && s__s3__tmp__next_state___0 == 8576bv32) && 8640bv32 == s__state)) || (blastFlag == 2bv32 && 8512bv32 == s__state)) || (!(s__hit == 0bv32) && 8592bv32 == s__state)) || ((blastFlag == 2bv32 && 8608bv32 == s__state) && s__s3__tmp__next_state___0 == 8576bv32)) || 3bv32 == s__state) || (!(s__hit == 0bv32) && 8608bv32 == s__state)) || ((blastFlag == 2bv32 && 8656bv32 == s__state) && !(s__s3__tmp__next_state___0 == 8640bv32))) || (blastFlag == 2bv32 && 8528bv32 == s__state) - InvariantResult [Line: 157]: Loop Invariant Derived loop invariant: ((blastFlag == 2bv32 && !(8640bv32 == s__state)) || (!(s__hit == 0bv32) && blastFlag == 2bv32)) || (!(s__hit == 0bv32) && blastFlag == 3bv32) - InvariantResult [Line: 108]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 398]: Loop Invariant Derived loop invariant: ((blastFlag == 2bv32 && !(8640bv32 == s__state)) || (!(s__hit == 0bv32) && blastFlag == 2bv32)) || (!(s__hit == 0bv32) && blastFlag == 3bv32) - InvariantResult [Line: 151]: Loop Invariant Derived loop invariant: ((blastFlag == 2bv32 && !(8640bv32 == s__state)) || (!(s__hit == 0bv32) && blastFlag == 2bv32)) || (!(s__hit == 0bv32) && blastFlag == 3bv32) - InvariantResult [Line: 184]: Loop Invariant Derived loop invariant: !(s__hit == 0bv32) || ((blastFlag == 2bv32 && !(8640bv32 == s__state)) && s__s3__tmp__next_state___0 == 8576bv32) - InvariantResult [Line: 115]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 356]: Loop Invariant Derived loop invariant: ((blastFlag == 2bv32 && !(8640bv32 == s__state)) || (!(s__hit == 0bv32) && blastFlag == 2bv32)) || (!(s__hit == 0bv32) && blastFlag == 3bv32) - InvariantResult [Line: 133]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 163]: Loop Invariant Derived loop invariant: ((blastFlag == 2bv32 && !(8640bv32 == s__state)) || (!(s__hit == 0bv32) && blastFlag == 2bv32)) || (!(s__hit == 0bv32) && blastFlag == 3bv32) - InvariantResult [Line: 74]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 685]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 169]: Loop Invariant Derived loop invariant: ((blastFlag == 2bv32 && !(8640bv32 == s__state)) || (!(s__hit == 0bv32) && blastFlag == 2bv32)) || (!(s__hit == 0bv32) && blastFlag == 3bv32) - InvariantResult [Line: 145]: Loop Invariant Derived loop invariant: ((((!(s__hit == 0bv32) && blastFlag == 2bv32) || (!(s__hit == 0bv32) && blastFlag == 3bv32)) || (blastFlag == 1bv32 && !(8640bv32 == s__state))) || ((blastFlag == 2bv32 && !(8640bv32 == s__state)) && !(s__s3__tmp__next_state___0 == 8640bv32))) || (!(s__hit == 0bv32) && blastFlag == 1bv32) - InvariantResult [Line: 109]: Loop Invariant Derived loop invariant: ((((((((((((((((((((((blastFlag == 2bv32 && s__state == 8466bv32) && !(s__s3__tmp__next_state___0 == 8640bv32)) || (!(s__hit == 0bv32) && 8640bv32 == s__state)) || (!(s__hit == 0bv32) && blastFlag == 2bv32)) || (blastFlag == 2bv32 && 8560bv32 == s__state)) || ((blastFlag == 3bv32 && 8672bv32 == s__state) && !(s__s3__tmp__next_state___0 == 8640bv32))) || ((blastFlag == 3bv32 && s__s3__tmp__next_state___0 == 3bv32) && 8448bv32 == s__state)) || (blastFlag == 1bv32 && 8496bv32 == s__state)) || (blastFlag == 2bv32 && 8544bv32 == s__state)) || (!(s__hit == 0bv32) && blastFlag == 3bv32)) || ((blastFlag == 2bv32 && s__s3__tmp__next_state___0 == 8576bv32) && 8576bv32 == s__state)) || (s__state == 8464bv32 && blastFlag == 0bv32)) || ((blastFlag == 2bv32 && 8592bv32 == s__state) && s__s3__tmp__next_state___0 == 8576bv32)) || ((blastFlag == 2bv32 && s__s3__tmp__next_state___0 == 8576bv32) && 8448bv32 == s__state)) || ((blastFlag == 2bv32 && 8496bv32 == s__state) && !(s__s3__tmp__next_state___0 == 8640bv32))) || ((blastFlag == 2bv32 && s__s3__tmp__next_state___0 == 8576bv32) && 8640bv32 == s__state)) || (blastFlag == 2bv32 && 8512bv32 == s__state)) || (!(s__hit == 0bv32) && 8592bv32 == s__state)) || ((blastFlag == 2bv32 && 8608bv32 == s__state) && s__s3__tmp__next_state___0 == 8576bv32)) || 3bv32 == s__state) || (!(s__hit == 0bv32) && 8608bv32 == s__state)) || ((blastFlag == 2bv32 && 8656bv32 == s__state) && !(s__s3__tmp__next_state___0 == 8640bv32))) || (blastFlag == 2bv32 && 8528bv32 == s__state) - InvariantResult [Line: 190]: Loop Invariant Derived loop invariant: !(s__hit == 0bv32) || ((blastFlag == 2bv32 && !(8640bv32 == s__state)) && s__s3__tmp__next_state___0 == 8576bv32) - InvariantResult [Line: 74]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 136]: Loop Invariant Derived loop invariant: (((!(s__hit == 0bv32) && blastFlag == 2bv32) || (!(s__hit == 0bv32) && blastFlag == 3bv32)) || ((blastFlag == 2bv32 && !(8640bv32 == s__state)) && !(s__s3__tmp__next_state___0 == 8640bv32))) || (!(8640bv32 == s__state) && blastFlag == 0bv32) - InvariantResult [Line: 214]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 178]: Loop Invariant Derived loop invariant: ((!(s__hit == 0bv32) && blastFlag == 2bv32) || (!(s__hit == 0bv32) && blastFlag == 3bv32)) || ((blastFlag == 2bv32 && !(8640bv32 == s__state)) && s__s3__tmp__next_state___0 == 8576bv32) - InvariantResult [Line: 202]: Loop Invariant Derived loop invariant: ((!(s__hit == 0bv32) && blastFlag == 2bv32) || (!(s__hit == 0bv32) && blastFlag == 3bv32)) || ((blastFlag == 2bv32 && !(8640bv32 == s__state)) && !(s__s3__tmp__next_state___0 == 8640bv32)) RESULT: Ultimate proved your program to be correct! [2021-11-23 17:13:30,851 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e25cd1c-cbd2-411f-86d7-46f024ebae84/bin/utaipan-fb15Y9Yzbl/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