./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem10_label49.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4e77c044 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_468de366-5740-47de-aedd-6c7cb32d4f52/bin/utaipan-q2qaUkNPG8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_468de366-5740-47de-aedd-6c7cb32d4f52/bin/utaipan-q2qaUkNPG8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_468de366-5740-47de-aedd-6c7cb32d4f52/bin/utaipan-q2qaUkNPG8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_468de366-5740-47de-aedd-6c7cb32d4f52/bin/utaipan-q2qaUkNPG8/config/TaipanReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem10_label49.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_468de366-5740-47de-aedd-6c7cb32d4f52/bin/utaipan-q2qaUkNPG8/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_468de366-5740-47de-aedd-6c7cb32d4f52/bin/utaipan-q2qaUkNPG8 --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 542216decab4eb809f5dc567967fa4ce316925bd ....................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_468de366-5740-47de-aedd-6c7cb32d4f52/bin/utaipan-q2qaUkNPG8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_468de366-5740-47de-aedd-6c7cb32d4f52/bin/utaipan-q2qaUkNPG8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_468de366-5740-47de-aedd-6c7cb32d4f52/bin/utaipan-q2qaUkNPG8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_468de366-5740-47de-aedd-6c7cb32d4f52/bin/utaipan-q2qaUkNPG8/config/TaipanReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem10_label49.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_468de366-5740-47de-aedd-6c7cb32d4f52/bin/utaipan-q2qaUkNPG8/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_468de366-5740-47de-aedd-6c7cb32d4f52/bin/utaipan-q2qaUkNPG8 --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 542216decab4eb809f5dc567967fa4ce316925bd ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-4e77c04 [2021-10-13 07:23:04,410 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 07:23:04,412 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 07:23:04,444 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 07:23:04,445 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 07:23:04,446 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 07:23:04,448 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 07:23:04,450 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 07:23:04,453 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 07:23:04,454 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 07:23:04,456 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 07:23:04,457 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 07:23:04,458 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 07:23:04,459 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 07:23:04,461 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 07:23:04,463 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 07:23:04,464 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 07:23:04,465 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 07:23:04,467 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 07:23:04,470 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 07:23:04,472 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 07:23:04,478 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 07:23:04,480 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 07:23:04,482 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 07:23:04,486 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 07:23:04,493 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 07:23:04,493 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 07:23:04,494 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 07:23:04,496 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 07:23:04,498 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 07:23:04,499 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 07:23:04,500 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 07:23:04,502 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 07:23:04,503 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 07:23:04,505 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 07:23:04,506 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 07:23:04,507 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 07:23:04,508 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 07:23:04,508 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 07:23:04,509 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 07:23:04,510 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 07:23:04,511 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_468de366-5740-47de-aedd-6c7cb32d4f52/bin/utaipan-q2qaUkNPG8/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-13 07:23:04,562 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 07:23:04,565 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 07:23:04,566 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-13 07:23:04,567 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-13 07:23:04,567 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-13 07:23:04,567 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-13 07:23:04,567 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-13 07:23:04,568 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-13 07:23:04,568 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-13 07:23:04,568 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-13 07:23:04,569 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-13 07:23:04,570 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-13 07:23:04,570 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-13 07:23:04,570 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-13 07:23:04,571 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-13 07:23:04,571 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 07:23:04,572 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 07:23:04,572 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 07:23:04,572 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 07:23:04,572 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 07:23:04,573 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-13 07:23:04,573 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 07:23:04,573 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-13 07:23:04,573 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-13 07:23:04,574 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 07:23:04,574 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 07:23:04,574 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 07:23:04,574 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-13 07:23:04,575 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 07:23:04,577 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-13 07:23:04,577 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 07:23:04,577 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 07:23:04,578 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 07:23:04,578 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-13 07:23:04,578 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-13 07:23:04,578 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-13 07:23:04,579 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-13 07:23:04,579 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 07:23:04,579 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-13 07:23:04,579 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_468de366-5740-47de-aedd-6c7cb32d4f52/bin/utaipan-q2qaUkNPG8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_468de366-5740-47de-aedd-6c7cb32d4f52/bin/utaipan-q2qaUkNPG8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 542216decab4eb809f5dc567967fa4ce316925bd [2021-10-13 07:23:04,844 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 07:23:04,864 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 07:23:04,867 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 07:23:04,868 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 07:23:04,869 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 07:23:04,870 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_468de366-5740-47de-aedd-6c7cb32d4f52/bin/utaipan-q2qaUkNPG8/../../sv-benchmarks/c/eca-rers2012/Problem10_label49.c [2021-10-13 07:23:04,927 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_468de366-5740-47de-aedd-6c7cb32d4f52/bin/utaipan-q2qaUkNPG8/data/6602eb500/375d5aa885dd48db9796fb6e580565e9/FLAGabf37267e [2021-10-13 07:23:05,423 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 07:23:05,424 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_468de366-5740-47de-aedd-6c7cb32d4f52/sv-benchmarks/c/eca-rers2012/Problem10_label49.c [2021-10-13 07:23:05,447 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_468de366-5740-47de-aedd-6c7cb32d4f52/bin/utaipan-q2qaUkNPG8/data/6602eb500/375d5aa885dd48db9796fb6e580565e9/FLAGabf37267e [2021-10-13 07:23:05,730 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_468de366-5740-47de-aedd-6c7cb32d4f52/bin/utaipan-q2qaUkNPG8/data/6602eb500/375d5aa885dd48db9796fb6e580565e9 [2021-10-13 07:23:05,732 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 07:23:05,735 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 07:23:05,751 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 07:23:05,751 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 07:23:05,755 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 07:23:05,755 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:23:05" (1/1) ... [2021-10-13 07:23:05,757 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c6895fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:23:05, skipping insertion in model container [2021-10-13 07:23:05,757 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:23:05" (1/1) ... [2021-10-13 07:23:05,764 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 07:23:05,815 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 07:23:06,028 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_468de366-5740-47de-aedd-6c7cb32d4f52/sv-benchmarks/c/eca-rers2012/Problem10_label49.c[2714,2727] [2021-10-13 07:23:06,290 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 07:23:06,311 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 07:23:06,351 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_468de366-5740-47de-aedd-6c7cb32d4f52/sv-benchmarks/c/eca-rers2012/Problem10_label49.c[2714,2727] [2021-10-13 07:23:06,457 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 07:23:06,472 INFO L208 MainTranslator]: Completed translation [2021-10-13 07:23:06,473 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:23:06 WrapperNode [2021-10-13 07:23:06,473 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 07:23:06,474 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 07:23:06,474 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 07:23:06,474 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 07:23:06,482 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:23:06" (1/1) ... [2021-10-13 07:23:06,503 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:23:06" (1/1) ... [2021-10-13 07:23:06,592 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 07:23:06,594 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 07:23:06,595 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 07:23:06,595 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 07:23:06,604 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:23:06" (1/1) ... [2021-10-13 07:23:06,605 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:23:06" (1/1) ... [2021-10-13 07:23:06,631 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:23:06" (1/1) ... [2021-10-13 07:23:06,631 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:23:06" (1/1) ... [2021-10-13 07:23:06,672 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:23:06" (1/1) ... [2021-10-13 07:23:06,682 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:23:06" (1/1) ... [2021-10-13 07:23:06,691 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:23:06" (1/1) ... [2021-10-13 07:23:06,703 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 07:23:06,704 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 07:23:06,705 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 07:23:06,705 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 07:23:06,706 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:23:06" (1/1) ... [2021-10-13 07:23:06,713 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 07:23:06,727 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_468de366-5740-47de-aedd-6c7cb32d4f52/bin/utaipan-q2qaUkNPG8/z3 [2021-10-13 07:23:06,753 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_468de366-5740-47de-aedd-6c7cb32d4f52/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-13 07:23:06,768 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_468de366-5740-47de-aedd-6c7cb32d4f52/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-13 07:23:06,802 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-13 07:23:06,802 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 07:23:06,804 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 07:23:06,804 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 07:23:14,910 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 07:23:14,910 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-10-13 07:23:14,913 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:23:14 BoogieIcfgContainer [2021-10-13 07:23:14,913 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 07:23:14,915 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-13 07:23:14,915 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-13 07:23:14,918 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-13 07:23:14,919 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 07:23:05" (1/3) ... [2021-10-13 07:23:14,920 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@415b41bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:23:14, skipping insertion in model container [2021-10-13 07:23:14,920 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:23:06" (2/3) ... [2021-10-13 07:23:14,920 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@415b41bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:23:14, skipping insertion in model container [2021-10-13 07:23:14,920 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:23:14" (3/3) ... [2021-10-13 07:23:14,922 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem10_label49.c [2021-10-13 07:23:14,927 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-13 07:23:14,928 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-13 07:23:14,976 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-13 07:23:14,983 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, mConcurrency=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 [2021-10-13 07:23:14,983 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-13 07:23:14,996 INFO L276 IsEmpty]: Start isEmpty. Operand has 9 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 8 states have internal predecessors, (11), 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) [2021-10-13 07:23:15,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-13 07:23:15,001 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:23:15,002 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-10-13 07:23:15,002 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 07:23:15,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:23:15,008 INFO L82 PathProgramCache]: Analyzing trace with hash 885163547, now seen corresponding path program 1 times [2021-10-13 07:23:15,018 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:23:15,018 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1637836689] [2021-10-13 07:23:15,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:23:15,020 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:23:15,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:23:15,231 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:23:15,231 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 07:23:15,231 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1637836689] [2021-10-13 07:23:15,232 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1637836689] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 07:23:15,232 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:23:15,233 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-13 07:23:15,235 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1676220738] [2021-10-13 07:23:15,242 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 07:23:15,243 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 07:23:15,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 07:23:15,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:23:15,266 INFO L87 Difference]: Start difference. First operand has 9 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 8 states have internal predecessors, (11), 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 1.6666666666666667) internal successors, (5), 2 states have internal predecessors, (5), 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) [2021-10-13 07:23:15,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:23:15,359 INFO L93 Difference]: Finished difference Result 23 states and 29 transitions. [2021-10-13 07:23:15,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 07:23:15,361 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 2 states have internal predecessors, (5), 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 5 [2021-10-13 07:23:15,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:23:15,369 INFO L225 Difference]: With dead ends: 23 [2021-10-13 07:23:15,370 INFO L226 Difference]: Without dead ends: 11 [2021-10-13 07:23:15,373 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.4ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:23:15,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2021-10-13 07:23:15,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 10. [2021-10-13 07:23:15,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 9 states have (on average 1.1111111111111112) internal successors, (10), 9 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:23:15,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2021-10-13 07:23:15,404 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 10 transitions. Word has length 5 [2021-10-13 07:23:15,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:23:15,405 INFO L470 AbstractCegarLoop]: Abstraction has 10 states and 10 transitions. [2021-10-13 07:23:15,405 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 2 states have internal predecessors, (5), 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) [2021-10-13 07:23:15,405 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 10 transitions. [2021-10-13 07:23:15,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-13 07:23:15,406 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:23:15,406 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1] [2021-10-13 07:23:15,406 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-13 07:23:15,407 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 07:23:15,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:23:15,410 INFO L82 PathProgramCache]: Analyzing trace with hash -1457702589, now seen corresponding path program 1 times [2021-10-13 07:23:15,411 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:23:15,411 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2082265489] [2021-10-13 07:23:15,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:23:15,412 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:23:15,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:23:16,003 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:23:16,004 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 07:23:16,004 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2082265489] [2021-10-13 07:23:16,004 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2082265489] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 07:23:16,005 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [227303826] [2021-10-13 07:23:16,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:23:16,005 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 07:23:16,006 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_468de366-5740-47de-aedd-6c7cb32d4f52/bin/utaipan-q2qaUkNPG8/z3 [2021-10-13 07:23:16,008 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_468de366-5740-47de-aedd-6c7cb32d4f52/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 07:23:16,037 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_468de366-5740-47de-aedd-6c7cb32d4f52/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-10-13 07:23:16,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:23:16,148 INFO L263 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 12 conjunts are in the unsatisfiable core [2021-10-13 07:23:16,154 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:23:29,468 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:23:29,469 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:23:48,733 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: BigInteger out of long range [2021-10-13 07:23:48,733 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1287016468] [2021-10-13 07:23:48,757 INFO L159 IcfgInterpreter]: Started Sifa with 7 locations of interest [2021-10-13 07:23:48,757 INFO L166 IcfgInterpreter]: Building call graph [2021-10-13 07:23:48,763 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-10-13 07:23:48,769 INFO L176 IcfgInterpreter]: Starting interpretation [2021-10-13 07:23:48,770 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-10-13 07:23:48,801 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:23:48,802 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-13 07:23:48,803 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:23:48,804 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-10-13 07:23:48,804 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-13 07:23:48,805 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:23:48,805 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-10-13 07:23:48,807 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 152 [2021-10-13 07:23:48,837 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 07:23:48,839 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 07:23:48,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 07:23:48,848 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 9 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 16 [2021-10-13 07:23:48,849 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:23:48,849 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-10-13 07:23:48,855 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:23:48,856 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-10-13 07:23:48,857 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-13 07:23:48,859 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:23:48,898 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:23:48,902 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:23:48,903 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 152 [2021-10-13 07:23:48,903 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-10-13 07:23:48,904 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:149, output treesize:152 [2021-10-13 07:23:48,934 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_468de366-5740-47de-aedd-6c7cb32d4f52/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-10-13 07:23:49,131 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_468de366-5740-47de-aedd-6c7cb32d4f52/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 07:23:49,131 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: No corresponding IProgramVar for |v_#valid_10| at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.TermVarsProc.computeTermVarsProc(TermVarsProc.java:97) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.TermVarsProc.computeTermVarsProc(TermVarsProc.java:83) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.constructTermVarsProc(BasicPredicateFactory.java:92) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.newPredicate(BasicPredicateFactory.java:81) at de.uni_freiburg.informatik.ultimate.lib.sifa.SymbolicTools.predicate(SymbolicTools.java:174) at de.uni_freiburg.informatik.ultimate.lib.sifa.SymbolicTools.post(SymbolicTools.java:116) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretInternal(DagInterpreter.java:227) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTransAndStoreLoiPred(DagInterpreter.java:209) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTrans(DagInterpreter.java:187) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:165) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:123) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpretLoisInProcedure(IcfgInterpreter.java:136) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpret(IcfgInterpreter.java:127) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:102) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:67) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:268) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:150) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:140) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:88) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:608) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:413) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:53) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:392) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:263) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:176) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-10-13 07:23:49,135 INFO L168 Benchmark]: Toolchain (without parser) took 43400.05 ms. Allocated memory was 86.0 MB in the beginning and 1.3 GB in the end (delta: 1.2 GB). Free memory was 45.8 MB in the beginning and 461.5 MB in the end (delta: -415.7 MB). Peak memory consumption was 766.4 MB. Max. memory is 16.1 GB. [2021-10-13 07:23:49,136 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 86.0 MB. Free memory is still 64.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 07:23:49,136 INFO L168 Benchmark]: CACSL2BoogieTranslator took 722.09 ms. Allocated memory was 86.0 MB in the beginning and 104.9 MB in the end (delta: 18.9 MB). Free memory was 45.6 MB in the beginning and 62.9 MB in the end (delta: -17.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-13 07:23:49,137 INFO L168 Benchmark]: Boogie Procedure Inliner took 118.76 ms. Allocated memory is still 104.9 MB. Free memory was 62.9 MB in the beginning and 55.2 MB in the end (delta: 7.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-13 07:23:49,137 INFO L168 Benchmark]: Boogie Preprocessor took 109.88 ms. Allocated memory is still 104.9 MB. Free memory was 55.2 MB in the beginning and 50.2 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-13 07:23:49,138 INFO L168 Benchmark]: RCFGBuilder took 8209.01 ms. Allocated memory was 104.9 MB in the beginning and 295.7 MB in the end (delta: 190.8 MB). Free memory was 50.2 MB in the beginning and 156.2 MB in the end (delta: -106.0 MB). Peak memory consumption was 131.0 MB. Max. memory is 16.1 GB. [2021-10-13 07:23:49,139 INFO L168 Benchmark]: TraceAbstraction took 34219.19 ms. Allocated memory was 295.7 MB in the beginning and 1.3 GB in the end (delta: 973.1 MB). Free memory was 156.2 MB in the beginning and 461.5 MB in the end (delta: -305.3 MB). Peak memory consumption was 668.9 MB. Max. memory is 16.1 GB. [2021-10-13 07:23:49,142 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 86.0 MB. Free memory is still 64.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 722.09 ms. Allocated memory was 86.0 MB in the beginning and 104.9 MB in the end (delta: 18.9 MB). Free memory was 45.6 MB in the beginning and 62.9 MB in the end (delta: -17.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 118.76 ms. Allocated memory is still 104.9 MB. Free memory was 62.9 MB in the beginning and 55.2 MB in the end (delta: 7.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 109.88 ms. Allocated memory is still 104.9 MB. Free memory was 55.2 MB in the beginning and 50.2 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 8209.01 ms. Allocated memory was 104.9 MB in the beginning and 295.7 MB in the end (delta: 190.8 MB). Free memory was 50.2 MB in the beginning and 156.2 MB in the end (delta: -106.0 MB). Peak memory consumption was 131.0 MB. Max. memory is 16.1 GB. * TraceAbstraction took 34219.19 ms. Allocated memory was 295.7 MB in the beginning and 1.3 GB in the end (delta: 973.1 MB). Free memory was 156.2 MB in the beginning and 461.5 MB in the end (delta: -305.3 MB). Peak memory consumption was 668.9 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: No corresponding IProgramVar for |v_#valid_10| de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: No corresponding IProgramVar for |v_#valid_10|: de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.TermVarsProc.computeTermVarsProc(TermVarsProc.java:97) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-10-13 07:23:49,187 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_468de366-5740-47de-aedd-6c7cb32d4f52/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.1-dev-4e77c04 [2021-10-13 07:23:51,650 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 07:23:51,653 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 07:23:51,707 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 07:23:51,708 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 07:23:51,709 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 07:23:51,711 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 07:23:51,713 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 07:23:51,716 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 07:23:51,717 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 07:23:51,718 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 07:23:51,720 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 07:23:51,720 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 07:23:51,721 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 07:23:51,723 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 07:23:51,725 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 07:23:51,726 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 07:23:51,727 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 07:23:51,729 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 07:23:51,732 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 07:23:51,734 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 07:23:51,736 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 07:23:51,738 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 07:23:51,739 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 07:23:51,743 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 07:23:51,743 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 07:23:51,744 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 07:23:51,745 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 07:23:51,745 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 07:23:51,750 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 07:23:51,751 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 07:23:51,752 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 07:23:51,754 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 07:23:51,755 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 07:23:51,759 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 07:23:51,759 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 07:23:51,760 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 07:23:51,761 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 07:23:51,761 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 07:23:51,763 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 07:23:51,764 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 07:23:51,769 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_468de366-5740-47de-aedd-6c7cb32d4f52/bin/utaipan-q2qaUkNPG8/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-10-13 07:23:51,814 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 07:23:51,814 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 07:23:51,816 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-13 07:23:51,816 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-13 07:23:51,817 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-13 07:23:51,817 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-13 07:23:51,817 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-13 07:23:51,817 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-13 07:23:51,818 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-13 07:23:51,820 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 07:23:51,821 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 07:23:51,821 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 07:23:51,822 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 07:23:51,822 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-13 07:23:51,822 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 07:23:51,822 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-13 07:23:51,823 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-13 07:23:51,823 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-13 07:23:51,823 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-13 07:23:51,823 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 07:23:51,823 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 07:23:51,824 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 07:23:51,824 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-13 07:23:51,824 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 07:23:51,825 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-13 07:23:51,825 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-13 07:23:51,825 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 07:23:51,825 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 07:23:51,826 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 07:23:51,826 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-13 07:23:51,826 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-13 07:23:51,826 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-13 07:23:51,828 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-13 07:23:51,828 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 07:23:51,829 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-13 07:23:51,829 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_468de366-5740-47de-aedd-6c7cb32d4f52/bin/utaipan-q2qaUkNPG8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_468de366-5740-47de-aedd-6c7cb32d4f52/bin/utaipan-q2qaUkNPG8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 542216decab4eb809f5dc567967fa4ce316925bd [2021-10-13 07:23:52,260 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 07:23:52,285 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 07:23:52,288 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 07:23:52,290 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 07:23:52,291 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 07:23:52,292 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_468de366-5740-47de-aedd-6c7cb32d4f52/bin/utaipan-q2qaUkNPG8/../../sv-benchmarks/c/eca-rers2012/Problem10_label49.c [2021-10-13 07:23:52,359 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_468de366-5740-47de-aedd-6c7cb32d4f52/bin/utaipan-q2qaUkNPG8/data/bbe4663df/63f58821120041dd9b1a2c9391554a19/FLAG8952185ae [2021-10-13 07:23:52,985 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 07:23:52,990 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_468de366-5740-47de-aedd-6c7cb32d4f52/sv-benchmarks/c/eca-rers2012/Problem10_label49.c [2021-10-13 07:23:53,004 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_468de366-5740-47de-aedd-6c7cb32d4f52/bin/utaipan-q2qaUkNPG8/data/bbe4663df/63f58821120041dd9b1a2c9391554a19/FLAG8952185ae [2021-10-13 07:23:53,278 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_468de366-5740-47de-aedd-6c7cb32d4f52/bin/utaipan-q2qaUkNPG8/data/bbe4663df/63f58821120041dd9b1a2c9391554a19 [2021-10-13 07:23:53,281 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 07:23:53,283 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 07:23:53,285 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 07:23:53,285 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 07:23:53,288 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 07:23:53,289 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:23:53" (1/1) ... [2021-10-13 07:23:53,290 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f5d80bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:23:53, skipping insertion in model container [2021-10-13 07:23:53,291 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:23:53" (1/1) ... [2021-10-13 07:23:53,299 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 07:23:53,363 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 07:23:53,607 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_468de366-5740-47de-aedd-6c7cb32d4f52/sv-benchmarks/c/eca-rers2012/Problem10_label49.c[2714,2727] [2021-10-13 07:23:53,847 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 07:23:53,858 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 07:23:53,879 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_468de366-5740-47de-aedd-6c7cb32d4f52/sv-benchmarks/c/eca-rers2012/Problem10_label49.c[2714,2727] [2021-10-13 07:23:54,043 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 07:23:54,075 INFO L208 MainTranslator]: Completed translation [2021-10-13 07:23:54,076 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:23:54 WrapperNode [2021-10-13 07:23:54,076 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 07:23:54,077 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 07:23:54,077 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 07:23:54,077 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 07:23:54,084 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:23:54" (1/1) ... [2021-10-13 07:23:54,105 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:23:54" (1/1) ... [2021-10-13 07:23:54,150 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 07:23:54,151 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 07:23:54,151 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 07:23:54,151 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 07:23:54,159 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:23:54" (1/1) ... [2021-10-13 07:23:54,159 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:23:54" (1/1) ... [2021-10-13 07:23:54,165 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:23:54" (1/1) ... [2021-10-13 07:23:54,165 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:23:54" (1/1) ... [2021-10-13 07:23:54,198 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:23:54" (1/1) ... [2021-10-13 07:23:54,207 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:23:54" (1/1) ... [2021-10-13 07:23:54,212 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:23:54" (1/1) ... [2021-10-13 07:23:54,217 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 07:23:54,218 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 07:23:54,218 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 07:23:54,218 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 07:23:54,219 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:23:54" (1/1) ... [2021-10-13 07:23:54,226 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 07:23:54,236 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_468de366-5740-47de-aedd-6c7cb32d4f52/bin/utaipan-q2qaUkNPG8/z3 [2021-10-13 07:23:54,247 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_468de366-5740-47de-aedd-6c7cb32d4f52/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-13 07:23:54,277 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_468de366-5740-47de-aedd-6c7cb32d4f52/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-13 07:23:54,291 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-13 07:23:54,291 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 07:23:54,291 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 07:23:54,292 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 07:23:57,314 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 07:23:57,317 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-10-13 07:23:57,323 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:23:57 BoogieIcfgContainer [2021-10-13 07:23:57,323 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 07:23:57,326 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-13 07:23:57,326 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-13 07:23:57,329 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-13 07:23:57,329 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 07:23:53" (1/3) ... [2021-10-13 07:23:57,330 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2180beb0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:23:57, skipping insertion in model container [2021-10-13 07:23:57,331 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:23:54" (2/3) ... [2021-10-13 07:23:57,331 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2180beb0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:23:57, skipping insertion in model container [2021-10-13 07:23:57,331 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:23:57" (3/3) ... [2021-10-13 07:23:57,333 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem10_label49.c [2021-10-13 07:23:57,338 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-13 07:23:57,339 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-13 07:23:57,399 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-13 07:23:57,405 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, mConcurrency=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 [2021-10-13 07:23:57,405 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-13 07:23:57,425 INFO L276 IsEmpty]: Start isEmpty. Operand has 206 states, 204 states have (on average 1.6862745098039216) internal successors, (344), 205 states have internal predecessors, (344), 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) [2021-10-13 07:23:57,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-10-13 07:23:57,431 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:23:57,432 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:23:57,432 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 07:23:57,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:23:57,438 INFO L82 PathProgramCache]: Analyzing trace with hash 1644072970, now seen corresponding path program 1 times [2021-10-13 07:23:57,450 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:23:57,451 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [312796113] [2021-10-13 07:23:57,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:23:57,452 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:23:57,452 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_468de366-5740-47de-aedd-6c7cb32d4f52/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:23:57,455 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_468de366-5740-47de-aedd-6c7cb32d4f52/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:23:57,459 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_468de366-5740-47de-aedd-6c7cb32d4f52/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-13 07:23:57,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:23:57,540 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 07:23:57,545 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:23:57,732 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:23:57,733 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:23:57,850 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:23:57,851 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:23:57,852 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [312796113] [2021-10-13 07:23:57,852 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [312796113] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 07:23:57,853 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:23:57,853 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-10-13 07:23:57,864 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1943917870] [2021-10-13 07:23:57,870 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 07:23:57,871 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:23:57,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 07:23:57,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 07:23:57,896 INFO L87 Difference]: Start difference. First operand has 206 states, 204 states have (on average 1.6862745098039216) internal successors, (344), 205 states have internal predecessors, (344), 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 4 states, 4 states have (on average 10.75) internal successors, (43), 3 states have internal predecessors, (43), 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) [2021-10-13 07:24:11,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:24:11,958 INFO L93 Difference]: Finished difference Result 709 states and 1261 transitions. [2021-10-13 07:24:11,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 07:24:11,960 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 3 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2021-10-13 07:24:11,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:24:11,976 INFO L225 Difference]: With dead ends: 709 [2021-10-13 07:24:11,977 INFO L226 Difference]: Without dead ends: 421 [2021-10-13 07:24:11,981 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 13.0ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 07:24:11,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 421 states. [2021-10-13 07:24:12,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 421 to 421. [2021-10-13 07:24:12,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 421 states, 420 states have (on average 1.3952380952380952) internal successors, (586), 420 states have internal predecessors, (586), 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) [2021-10-13 07:24:12,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 421 states to 421 states and 586 transitions. [2021-10-13 07:24:12,050 INFO L78 Accepts]: Start accepts. Automaton has 421 states and 586 transitions. Word has length 22 [2021-10-13 07:24:12,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:24:12,051 INFO L470 AbstractCegarLoop]: Abstraction has 421 states and 586 transitions. [2021-10-13 07:24:12,051 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 3 states have internal predecessors, (43), 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) [2021-10-13 07:24:12,052 INFO L276 IsEmpty]: Start isEmpty. Operand 421 states and 586 transitions. [2021-10-13 07:24:12,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2021-10-13 07:24:12,056 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:24:12,057 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:24:12,073 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_468de366-5740-47de-aedd-6c7cb32d4f52/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-13 07:24:12,268 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_468de366-5740-47de-aedd-6c7cb32d4f52/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 07:24:12,269 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 07:24:12,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:24:12,272 INFO L82 PathProgramCache]: Analyzing trace with hash -1186072980, now seen corresponding path program 1 times [2021-10-13 07:24:12,273 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:24:12,274 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [959598243] [2021-10-13 07:24:12,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:24:12,274 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:24:12,274 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_468de366-5740-47de-aedd-6c7cb32d4f52/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:24:12,275 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_468de366-5740-47de-aedd-6c7cb32d4f52/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:24:12,312 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_468de366-5740-47de-aedd-6c7cb32d4f52/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-13 07:24:12,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:24:12,395 INFO L263 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 07:24:12,399 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:24:12,846 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:24:12,846 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:24:13,233 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:24:13,233 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:24:13,234 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [959598243] [2021-10-13 07:24:13,234 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [959598243] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 07:24:13,234 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:24:13,234 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-10-13 07:24:13,235 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [460550210] [2021-10-13 07:24:13,238 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 07:24:13,238 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:24:13,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 07:24:13,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 07:24:13,239 INFO L87 Difference]: Start difference. First operand 421 states and 586 transitions. Second operand has 4 states, 4 states have (on average 40.75) 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) [2021-10-13 07:24:17,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:24:17,812 INFO L93 Difference]: Finished difference Result 1396 states and 1988 transitions. [2021-10-13 07:24:17,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 07:24:17,815 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 40.75) 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 92 [2021-10-13 07:24:17,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:24:17,821 INFO L225 Difference]: With dead ends: 1396 [2021-10-13 07:24:17,821 INFO L226 Difference]: Without dead ends: 977 [2021-10-13 07:24:17,825 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 182 GetRequests, 180 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 10.2ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 07:24:17,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 977 states. [2021-10-13 07:24:17,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 977 to 838. [2021-10-13 07:24:17,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 838 states, 837 states have (on average 1.3369175627240144) internal successors, (1119), 837 states have internal predecessors, (1119), 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) [2021-10-13 07:24:17,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 838 states to 838 states and 1119 transitions. [2021-10-13 07:24:17,901 INFO L78 Accepts]: Start accepts. Automaton has 838 states and 1119 transitions. Word has length 92 [2021-10-13 07:24:17,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:24:17,902 INFO L470 AbstractCegarLoop]: Abstraction has 838 states and 1119 transitions. [2021-10-13 07:24:17,902 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 40.75) 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) [2021-10-13 07:24:17,903 INFO L276 IsEmpty]: Start isEmpty. Operand 838 states and 1119 transitions. [2021-10-13 07:24:17,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2021-10-13 07:24:17,905 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:24:17,905 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:24:17,921 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_468de366-5740-47de-aedd-6c7cb32d4f52/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-13 07:24:18,106 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_468de366-5740-47de-aedd-6c7cb32d4f52/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 07:24:18,108 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 07:24:18,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:24:18,109 INFO L82 PathProgramCache]: Analyzing trace with hash -751446652, now seen corresponding path program 1 times [2021-10-13 07:24:18,110 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:24:18,110 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1926147973] [2021-10-13 07:24:18,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:24:18,111 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:24:18,111 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_468de366-5740-47de-aedd-6c7cb32d4f52/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:24:18,112 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_468de366-5740-47de-aedd-6c7cb32d4f52/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:24:18,118 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_468de366-5740-47de-aedd-6c7cb32d4f52/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-13 07:24:18,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:24:18,273 INFO L263 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-13 07:24:18,277 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:24:18,890 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:24:18,890 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:24:21,821 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 18 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:24:21,821 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:24:21,821 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1926147973] [2021-10-13 07:24:21,822 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1926147973] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-13 07:24:21,822 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [89014839] [2021-10-13 07:24:21,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:24:21,822 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-13 07:24:21,823 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_468de366-5740-47de-aedd-6c7cb32d4f52/bin/utaipan-q2qaUkNPG8/cvc4 [2021-10-13 07:24:21,830 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_468de366-5740-47de-aedd-6c7cb32d4f52/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-13 07:24:21,831 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_468de366-5740-47de-aedd-6c7cb32d4f52/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2021-10-13 07:24:22,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:24:22,081 INFO L263 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 07:24:22,084 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:24:22,363 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:24:22,364 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:24:22,623 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:24:22,624 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [89014839] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 07:24:22,624 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 2 imperfect interpolant sequences. [2021-10-13 07:24:22,624 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [4, 4] total 9 [2021-10-13 07:24:22,625 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [507537559] [2021-10-13 07:24:22,626 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 07:24:22,626 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:24:22,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 07:24:22,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2021-10-13 07:24:22,627 INFO L87 Difference]: Start difference. First operand 838 states and 1119 transitions. Second operand has 4 states, 4 states have (on average 29.5) internal successors, (118), 4 states have internal predecessors, (118), 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) [2021-10-13 07:24:27,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:24:27,326 INFO L93 Difference]: Finished difference Result 2091 states and 2885 transitions. [2021-10-13 07:24:27,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 07:24:27,330 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 29.5) internal successors, (118), 4 states have internal predecessors, (118), 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 97 [2021-10-13 07:24:27,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:24:27,340 INFO L225 Difference]: With dead ends: 2091 [2021-10-13 07:24:27,340 INFO L226 Difference]: Without dead ends: 1394 [2021-10-13 07:24:27,342 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 384 GetRequests, 377 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 263.2ms TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2021-10-13 07:24:27,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1394 states. [2021-10-13 07:24:27,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1394 to 1394. [2021-10-13 07:24:27,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1394 states, 1393 states have (on average 1.3129935391241925) internal successors, (1829), 1393 states have internal predecessors, (1829), 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) [2021-10-13 07:24:27,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1394 states to 1394 states and 1829 transitions. [2021-10-13 07:24:27,386 INFO L78 Accepts]: Start accepts. Automaton has 1394 states and 1829 transitions. Word has length 97 [2021-10-13 07:24:27,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:24:27,388 INFO L470 AbstractCegarLoop]: Abstraction has 1394 states and 1829 transitions. [2021-10-13 07:24:27,389 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.5) internal successors, (118), 4 states have internal predecessors, (118), 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) [2021-10-13 07:24:27,389 INFO L276 IsEmpty]: Start isEmpty. Operand 1394 states and 1829 transitions. [2021-10-13 07:24:27,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2021-10-13 07:24:27,407 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:24:27,407 INFO L512 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-10-13 07:24:27,424 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_468de366-5740-47de-aedd-6c7cb32d4f52/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-10-13 07:24:27,626 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_468de366-5740-47de-aedd-6c7cb32d4f52/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (5)] Forceful destruction successful, exit code 0 [2021-10-13 07:24:27,824 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_468de366-5740-47de-aedd-6c7cb32d4f52/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_468de366-5740-47de-aedd-6c7cb32d4f52/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt [2021-10-13 07:24:27,828 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 07:24:27,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:24:27,829 INFO L82 PathProgramCache]: Analyzing trace with hash -1975823509, now seen corresponding path program 1 times [2021-10-13 07:24:27,832 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:24:27,833 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [741001410] [2021-10-13 07:24:27,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:24:27,833 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:24:27,834 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_468de366-5740-47de-aedd-6c7cb32d4f52/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:24:27,835 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_468de366-5740-47de-aedd-6c7cb32d4f52/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:24:27,897 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_468de366-5740-47de-aedd-6c7cb32d4f52/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-10-13 07:24:28,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:24:28,133 INFO L263 TraceCheckSpWp]: Trace formula consists of 237 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 07:24:28,137 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:24:28,801 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 104 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:24:28,801 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:24:29,940 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 104 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:24:29,940 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:24:29,940 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [741001410] [2021-10-13 07:24:29,940 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [741001410] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 07:24:29,941 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:24:29,941 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-13 07:24:29,941 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1987055973] [2021-10-13 07:24:29,942 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 07:24:29,942 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:24:29,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 07:24:29,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 07:24:29,943 INFO L87 Difference]: Start difference. First operand 1394 states and 1829 transitions. Second operand has 4 states, 4 states have (on average 68.75) internal successors, (275), 4 states have internal predecessors, (275), 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) [2021-10-13 07:24:34,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:24:34,737 INFO L93 Difference]: Finished difference Result 2647 states and 3507 transitions. [2021-10-13 07:24:34,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 07:24:34,741 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 68.75) internal successors, (275), 4 states have internal predecessors, (275), 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 181 [2021-10-13 07:24:34,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:24:34,751 INFO L225 Difference]: With dead ends: 2647 [2021-10-13 07:24:34,751 INFO L226 Difference]: Without dead ends: 1394 [2021-10-13 07:24:34,754 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 360 GetRequests, 358 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 13.1ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 07:24:34,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1394 states. [2021-10-13 07:24:34,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1394 to 1394. [2021-10-13 07:24:34,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1394 states, 1393 states have (on average 1.2412060301507537) internal successors, (1729), 1393 states have internal predecessors, (1729), 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) [2021-10-13 07:24:34,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1394 states to 1394 states and 1729 transitions. [2021-10-13 07:24:34,804 INFO L78 Accepts]: Start accepts. Automaton has 1394 states and 1729 transitions. Word has length 181 [2021-10-13 07:24:34,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:24:34,804 INFO L470 AbstractCegarLoop]: Abstraction has 1394 states and 1729 transitions. [2021-10-13 07:24:34,805 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 68.75) internal successors, (275), 4 states have internal predecessors, (275), 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) [2021-10-13 07:24:34,805 INFO L276 IsEmpty]: Start isEmpty. Operand 1394 states and 1729 transitions. [2021-10-13 07:24:34,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2021-10-13 07:24:34,809 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:24:34,809 INFO L512 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-10-13 07:24:34,830 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_468de366-5740-47de-aedd-6c7cb32d4f52/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-10-13 07:24:35,023 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_468de366-5740-47de-aedd-6c7cb32d4f52/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 07:24:35,027 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 07:24:35,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:24:35,027 INFO L82 PathProgramCache]: Analyzing trace with hash 1838444835, now seen corresponding path program 1 times [2021-10-13 07:24:35,028 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:24:35,028 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [844678644] [2021-10-13 07:24:35,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:24:35,029 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:24:35,029 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_468de366-5740-47de-aedd-6c7cb32d4f52/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:24:35,030 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_468de366-5740-47de-aedd-6c7cb32d4f52/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:24:35,035 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_468de366-5740-47de-aedd-6c7cb32d4f52/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-10-13 07:24:35,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:24:35,402 INFO L263 TraceCheckSpWp]: Trace formula consists of 248 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-13 07:24:35,406 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:24:36,643 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 39 proven. 65 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:24:36,643 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:24:41,121 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 39 proven. 65 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:24:41,121 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:24:41,122 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [844678644] [2021-10-13 07:24:41,122 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [844678644] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-13 07:24:41,122 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1920859030] [2021-10-13 07:24:41,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:24:41,123 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-13 07:24:41,123 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_468de366-5740-47de-aedd-6c7cb32d4f52/bin/utaipan-q2qaUkNPG8/cvc4 [2021-10-13 07:24:41,136 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_468de366-5740-47de-aedd-6c7cb32d4f52/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-13 07:24:41,137 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_468de366-5740-47de-aedd-6c7cb32d4f52/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (8)] Waiting until timeout for monitored process [2021-10-13 07:24:41,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:24:41,877 INFO L263 TraceCheckSpWp]: Trace formula consists of 248 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-13 07:24:41,880 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:24:43,617 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 39 proven. 48 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2021-10-13 07:24:43,617 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:24:44,122 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2021-10-13 07:24:44,123 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1920859030] provided 1 perfect and 1 imperfect interpolant sequences [2021-10-13 07:24:44,123 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 3 imperfect interpolant sequences. [2021-10-13 07:24:44,123 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3, 3, 6] total 11 [2021-10-13 07:24:44,124 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1092669487] [2021-10-13 07:24:44,124 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 07:24:44,124 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:24:44,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 07:24:44,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2021-10-13 07:24:44,125 INFO L87 Difference]: Start difference. First operand 1394 states and 1729 transitions. Second operand has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 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) [2021-10-13 07:24:46,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:24:46,875 INFO L93 Difference]: Finished difference Result 2091 states and 2566 transitions. [2021-10-13 07:24:46,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 07:24:46,878 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 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 192 [2021-10-13 07:24:46,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:24:46,890 INFO L225 Difference]: With dead ends: 2091 [2021-10-13 07:24:46,890 INFO L226 Difference]: Without dead ends: 2089 [2021-10-13 07:24:46,891 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 764 GetRequests, 755 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 399.2ms TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2021-10-13 07:24:46,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2089 states. [2021-10-13 07:24:46,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2089 to 1394. [2021-10-13 07:24:46,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1394 states, 1393 states have (on average 1.2412060301507537) internal successors, (1729), 1393 states have internal predecessors, (1729), 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) [2021-10-13 07:24:46,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1394 states to 1394 states and 1729 transitions. [2021-10-13 07:24:46,932 INFO L78 Accepts]: Start accepts. Automaton has 1394 states and 1729 transitions. Word has length 192 [2021-10-13 07:24:46,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:24:46,933 INFO L470 AbstractCegarLoop]: Abstraction has 1394 states and 1729 transitions. [2021-10-13 07:24:46,933 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 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) [2021-10-13 07:24:46,933 INFO L276 IsEmpty]: Start isEmpty. Operand 1394 states and 1729 transitions. [2021-10-13 07:24:46,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 252 [2021-10-13 07:24:46,938 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:24:46,939 INFO L512 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-10-13 07:24:46,959 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_468de366-5740-47de-aedd-6c7cb32d4f52/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (8)] Forceful destruction successful, exit code 0 [2021-10-13 07:24:47,157 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_468de366-5740-47de-aedd-6c7cb32d4f52/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-10-13 07:24:47,353 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_468de366-5740-47de-aedd-6c7cb32d4f52/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_468de366-5740-47de-aedd-6c7cb32d4f52/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 07:24:47,354 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 07:24:47,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:24:47,354 INFO L82 PathProgramCache]: Analyzing trace with hash 79128916, now seen corresponding path program 1 times [2021-10-13 07:24:47,355 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:24:47,355 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [927958711] [2021-10-13 07:24:47,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:24:47,356 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:24:47,356 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_468de366-5740-47de-aedd-6c7cb32d4f52/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:24:47,357 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_468de366-5740-47de-aedd-6c7cb32d4f52/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:24:47,359 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_468de366-5740-47de-aedd-6c7cb32d4f52/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-10-13 07:24:48,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:24:48,011 INFO L263 TraceCheckSpWp]: Trace formula consists of 310 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 07:24:48,015 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:24:48,629 INFO L134 CoverageAnalysis]: Checked inductivity of 129 backedges. 109 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-10-13 07:24:48,629 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:24:49,359 INFO L134 CoverageAnalysis]: Checked inductivity of 129 backedges. 109 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-10-13 07:24:49,359 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:24:49,359 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [927958711] [2021-10-13 07:24:49,359 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [927958711] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 07:24:49,360 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:24:49,360 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-10-13 07:24:49,360 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [380825933] [2021-10-13 07:24:49,360 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 07:24:49,361 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:24:49,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 07:24:49,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 07:24:49,362 INFO L87 Difference]: Start difference. First operand 1394 states and 1729 transitions. Second operand has 4 states, 4 states have (on average 81.0) internal successors, (324), 3 states have internal predecessors, (324), 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) [2021-10-13 07:24:52,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:24:52,771 INFO L93 Difference]: Finished difference Result 4037 states and 5017 transitions. [2021-10-13 07:24:52,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 07:24:52,772 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 81.0) internal successors, (324), 3 states have internal predecessors, (324), 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 251 [2021-10-13 07:24:52,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:24:52,784 INFO L225 Difference]: With dead ends: 4037 [2021-10-13 07:24:52,784 INFO L226 Difference]: Without dead ends: 2784 [2021-10-13 07:24:52,787 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 500 GetRequests, 498 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.2ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 07:24:52,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2784 states. [2021-10-13 07:24:52,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2784 to 1811. [2021-10-13 07:24:52,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1811 states, 1810 states have (on average 1.158011049723757) internal successors, (2096), 1810 states have internal predecessors, (2096), 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) [2021-10-13 07:24:52,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1811 states to 1811 states and 2096 transitions. [2021-10-13 07:24:52,847 INFO L78 Accepts]: Start accepts. Automaton has 1811 states and 2096 transitions. Word has length 251 [2021-10-13 07:24:52,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:24:52,848 INFO L470 AbstractCegarLoop]: Abstraction has 1811 states and 2096 transitions. [2021-10-13 07:24:52,848 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 81.0) internal successors, (324), 3 states have internal predecessors, (324), 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) [2021-10-13 07:24:52,848 INFO L276 IsEmpty]: Start isEmpty. Operand 1811 states and 2096 transitions. [2021-10-13 07:24:52,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 309 [2021-10-13 07:24:52,855 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:24:52,856 INFO L512 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:24:52,874 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_468de366-5740-47de-aedd-6c7cb32d4f52/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-10-13 07:24:53,069 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_468de366-5740-47de-aedd-6c7cb32d4f52/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 07:24:53,069 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 07:24:53,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:24:53,070 INFO L82 PathProgramCache]: Analyzing trace with hash -1801365689, now seen corresponding path program 1 times [2021-10-13 07:24:53,071 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:24:53,071 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [298952259] [2021-10-13 07:24:53,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:24:53,071 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:24:53,071 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_468de366-5740-47de-aedd-6c7cb32d4f52/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:24:53,072 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_468de366-5740-47de-aedd-6c7cb32d4f52/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:24:53,073 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_468de366-5740-47de-aedd-6c7cb32d4f52/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-10-13 07:24:53,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:24:53,905 INFO L263 TraceCheckSpWp]: Trace formula consists of 376 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-13 07:24:53,908 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:24:54,945 INFO L134 CoverageAnalysis]: Checked inductivity of 278 backedges. 186 proven. 72 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-10-13 07:24:54,945 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:24:58,204 INFO L134 CoverageAnalysis]: Checked inductivity of 278 backedges. 204 proven. 54 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-10-13 07:24:58,204 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:24:58,205 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [298952259] [2021-10-13 07:24:58,205 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [298952259] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-13 07:24:58,205 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1345834535] [2021-10-13 07:24:58,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:24:58,205 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-13 07:24:58,205 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_468de366-5740-47de-aedd-6c7cb32d4f52/bin/utaipan-q2qaUkNPG8/cvc4 [2021-10-13 07:24:58,206 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_468de366-5740-47de-aedd-6c7cb32d4f52/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-13 07:24:58,207 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_468de366-5740-47de-aedd-6c7cb32d4f52/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (11)] Waiting until timeout for monitored process [2021-10-13 07:24:59,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:24:59,565 INFO L263 TraceCheckSpWp]: Trace formula consists of 376 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-13 07:24:59,569 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:25:02,411 INFO L134 CoverageAnalysis]: Checked inductivity of 278 backedges. 165 proven. 75 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2021-10-13 07:25:02,411 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:25:04,910 INFO L134 CoverageAnalysis]: Checked inductivity of 278 backedges. 202 proven. 38 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2021-10-13 07:25:04,911 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1345834535] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-13 07:25:04,911 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [54464088] [2021-10-13 07:25:04,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:25:04,912 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 07:25:04,912 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_468de366-5740-47de-aedd-6c7cb32d4f52/bin/utaipan-q2qaUkNPG8/z3 [2021-10-13 07:25:04,917 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_468de366-5740-47de-aedd-6c7cb32d4f52/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 07:25:04,938 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_468de366-5740-47de-aedd-6c7cb32d4f52/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2021-10-13 07:25:06,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:25:06,626 INFO L263 TraceCheckSpWp]: Trace formula consists of 376 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-13 07:25:06,632 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:25:08,762 INFO L134 CoverageAnalysis]: Checked inductivity of 278 backedges. 240 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2021-10-13 07:25:08,762 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:25:10,907 INFO L134 CoverageAnalysis]: Checked inductivity of 278 backedges. 240 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2021-10-13 07:25:10,907 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [54464088] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 07:25:10,908 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 4 imperfect interpolant sequences. [2021-10-13 07:25:10,908 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [4, 4, 7, 7] total 20 [2021-10-13 07:25:10,909 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [352803669] [2021-10-13 07:25:10,909 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-13 07:25:10,910 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:25:10,910 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-13 07:25:10,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=287, Unknown=0, NotChecked=0, Total=380 [2021-10-13 07:25:10,911 INFO L87 Difference]: Start difference. First operand 1811 states and 2096 transitions. Second operand has 7 states, 7 states have (on average 38.857142857142854) internal successors, (272), 6 states have internal predecessors, (272), 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) [2021-10-13 07:25:13,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:25:13,477 INFO L93 Difference]: Finished difference Result 3536 states and 4101 transitions. [2021-10-13 07:25:13,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-13 07:25:13,478 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 38.857142857142854) internal successors, (272), 6 states have internal predecessors, (272), 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 308 [2021-10-13 07:25:13,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:25:13,487 INFO L225 Difference]: With dead ends: 3536 [2021-10-13 07:25:13,488 INFO L226 Difference]: Without dead ends: 1811 [2021-10-13 07:25:13,490 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 1842 GetRequests, 1821 SyntacticMatches, 3 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 118 ImplicationChecksByTransitivity, 892.2ms TimeCoverageRelationStatistics Valid=93, Invalid=287, Unknown=0, NotChecked=0, Total=380 [2021-10-13 07:25:13,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1811 states. [2021-10-13 07:25:13,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1811 to 1811. [2021-10-13 07:25:13,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1811 states, 1810 states have (on average 1.1541436464088397) internal successors, (2089), 1810 states have internal predecessors, (2089), 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) [2021-10-13 07:25:13,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1811 states to 1811 states and 2089 transitions. [2021-10-13 07:25:13,532 INFO L78 Accepts]: Start accepts. Automaton has 1811 states and 2089 transitions. Word has length 308 [2021-10-13 07:25:13,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:25:13,533 INFO L470 AbstractCegarLoop]: Abstraction has 1811 states and 2089 transitions. [2021-10-13 07:25:13,533 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 38.857142857142854) internal successors, (272), 6 states have internal predecessors, (272), 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) [2021-10-13 07:25:13,533 INFO L276 IsEmpty]: Start isEmpty. Operand 1811 states and 2089 transitions. [2021-10-13 07:25:13,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 345 [2021-10-13 07:25:13,541 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:25:13,542 INFO L512 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-10-13 07:25:13,560 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_468de366-5740-47de-aedd-6c7cb32d4f52/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-10-13 07:25:13,782 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_468de366-5740-47de-aedd-6c7cb32d4f52/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2021-10-13 07:25:13,963 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_468de366-5740-47de-aedd-6c7cb32d4f52/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (11)] Ended with exit code 0 [2021-10-13 07:25:14,157 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_468de366-5740-47de-aedd-6c7cb32d4f52/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_468de366-5740-47de-aedd-6c7cb32d4f52/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_468de366-5740-47de-aedd-6c7cb32d4f52/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt [2021-10-13 07:25:14,158 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 07:25:14,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:25:14,158 INFO L82 PathProgramCache]: Analyzing trace with hash 1635215713, now seen corresponding path program 1 times [2021-10-13 07:25:14,160 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:25:14,160 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2044525595] [2021-10-13 07:25:14,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:25:14,160 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:25:14,160 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_468de366-5740-47de-aedd-6c7cb32d4f52/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:25:14,161 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_468de366-5740-47de-aedd-6c7cb32d4f52/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:25:14,162 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_468de366-5740-47de-aedd-6c7cb32d4f52/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-10-13 07:25:15,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:25:15,685 INFO L263 TraceCheckSpWp]: Trace formula consists of 411 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-13 07:25:15,688 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:25:16,810 INFO L134 CoverageAnalysis]: Checked inductivity of 314 backedges. 222 proven. 72 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-10-13 07:25:16,810 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:25:30,673 INFO L134 CoverageAnalysis]: Checked inductivity of 314 backedges. 222 proven. 72 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-10-13 07:25:30,673 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:25:30,673 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2044525595] [2021-10-13 07:25:30,674 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2044525595] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-13 07:25:30,674 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [563933301] [2021-10-13 07:25:30,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:25:30,674 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-13 07:25:30,674 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_468de366-5740-47de-aedd-6c7cb32d4f52/bin/utaipan-q2qaUkNPG8/cvc4 [2021-10-13 07:25:30,675 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_468de366-5740-47de-aedd-6c7cb32d4f52/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-13 07:25:30,676 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_468de366-5740-47de-aedd-6c7cb32d4f52/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (14)] Waiting until timeout for monitored process [2021-10-13 07:25:33,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:25:33,098 INFO L263 TraceCheckSpWp]: Trace formula consists of 411 conjuncts, 13 conjunts are in the unsatisfiable core [2021-10-13 07:25:33,101 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:25:39,141 INFO L134 CoverageAnalysis]: Checked inductivity of 314 backedges. 222 proven. 20 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2021-10-13 07:25:39,141 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:25:42,454 INFO L134 CoverageAnalysis]: Checked inductivity of 314 backedges. 222 proven. 20 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2021-10-13 07:25:42,454 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [563933301] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-13 07:25:42,455 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1681668403] [2021-10-13 07:25:42,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:25:42,455 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 07:25:42,455 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_468de366-5740-47de-aedd-6c7cb32d4f52/bin/utaipan-q2qaUkNPG8/z3 [2021-10-13 07:25:42,459 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_468de366-5740-47de-aedd-6c7cb32d4f52/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 07:25:42,479 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_468de366-5740-47de-aedd-6c7cb32d4f52/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2021-10-13 07:25:45,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:25:45,139 INFO L263 TraceCheckSpWp]: Trace formula consists of 411 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-13 07:25:45,143 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:25:49,300 INFO L134 CoverageAnalysis]: Checked inductivity of 314 backedges. 225 proven. 17 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2021-10-13 07:25:49,301 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:25:53,036 INFO L134 CoverageAnalysis]: Checked inductivity of 314 backedges. 225 proven. 17 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2021-10-13 07:25:53,037 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1681668403] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-13 07:25:53,037 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2021-10-13 07:25:53,037 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 11, 8, 4, 4] total 21 [2021-10-13 07:25:53,038 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [761150677] [2021-10-13 07:25:53,040 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-10-13 07:25:53,040 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:25:53,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-10-13 07:25:53,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=96, Invalid=324, Unknown=0, NotChecked=0, Total=420 [2021-10-13 07:25:53,042 INFO L87 Difference]: Start difference. First operand 1811 states and 2089 transitions. Second operand has 21 states, 21 states have (on average 51.61904761904762) internal successors, (1084), 21 states have internal predecessors, (1084), 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) [2021-10-13 07:28:57,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:28:57,586 INFO L93 Difference]: Finished difference Result 5798 states and 6707 transitions. [2021-10-13 07:28:57,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2021-10-13 07:28:57,593 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 51.61904761904762) internal successors, (1084), 21 states have internal predecessors, (1084), 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 344 [2021-10-13 07:28:57,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:28:57,616 INFO L225 Difference]: With dead ends: 5798 [2021-10-13 07:28:57,617 INFO L226 Difference]: Without dead ends: 4128 [2021-10-13 07:28:57,620 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2121 GetRequests, 2065 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 935 ImplicationChecksByTransitivity, 40268.8ms TimeCoverageRelationStatistics Valid=747, Invalid=2559, Unknown=0, NotChecked=0, Total=3306 [2021-10-13 07:28:57,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4128 states. [2021-10-13 07:28:57,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4128 to 2645. [2021-10-13 07:28:57,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2645 states, 2644 states have (on average 1.1059001512859303) internal successors, (2924), 2644 states have internal predecessors, (2924), 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) [2021-10-13 07:28:57,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2645 states to 2645 states and 2924 transitions. [2021-10-13 07:28:57,693 INFO L78 Accepts]: Start accepts. Automaton has 2645 states and 2924 transitions. Word has length 344 [2021-10-13 07:28:57,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:28:57,693 INFO L470 AbstractCegarLoop]: Abstraction has 2645 states and 2924 transitions. [2021-10-13 07:28:57,694 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 51.61904761904762) internal successors, (1084), 21 states have internal predecessors, (1084), 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) [2021-10-13 07:28:57,694 INFO L276 IsEmpty]: Start isEmpty. Operand 2645 states and 2924 transitions. [2021-10-13 07:28:57,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 374 [2021-10-13 07:28:57,703 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:28:57,704 INFO L512 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-10-13 07:28:57,731 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_468de366-5740-47de-aedd-6c7cb32d4f52/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2021-10-13 07:28:57,923 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_468de366-5740-47de-aedd-6c7cb32d4f52/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (14)] Ended with exit code 0 [2021-10-13 07:28:58,148 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_468de366-5740-47de-aedd-6c7cb32d4f52/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2021-10-13 07:28:58,318 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_468de366-5740-47de-aedd-6c7cb32d4f52/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_468de366-5740-47de-aedd-6c7cb32d4f52/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_468de366-5740-47de-aedd-6c7cb32d4f52/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 07:28:58,319 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 07:28:58,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:28:58,319 INFO L82 PathProgramCache]: Analyzing trace with hash 1115836380, now seen corresponding path program 1 times [2021-10-13 07:28:58,321 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:28:58,321 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [217460629] [2021-10-13 07:28:58,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:28:58,321 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:28:58,321 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_468de366-5740-47de-aedd-6c7cb32d4f52/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:28:58,322 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_468de366-5740-47de-aedd-6c7cb32d4f52/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:28:58,327 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_468de366-5740-47de-aedd-6c7cb32d4f52/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2021-10-13 07:29:01,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:29:01,048 INFO L263 TraceCheckSpWp]: Trace formula consists of 439 conjuncts, 15 conjunts are in the unsatisfiable core [2021-10-13 07:29:01,052 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:29:07,239 INFO L134 CoverageAnalysis]: Checked inductivity of 353 backedges. 65 proven. 288 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:29:07,239 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:29:28,981 INFO L134 CoverageAnalysis]: Checked inductivity of 353 backedges. 271 proven. 0 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2021-10-13 07:29:28,981 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:29:28,981 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [217460629] [2021-10-13 07:29:28,981 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [217460629] provided 1 perfect and 1 imperfect interpolant sequences [2021-10-13 07:29:28,981 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-13 07:29:28,982 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [9] total 16 [2021-10-13 07:29:28,982 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [572084156] [2021-10-13 07:29:28,982 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-13 07:29:28,982 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:29:28,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-13 07:29:28,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=160, Unknown=0, NotChecked=0, Total=240 [2021-10-13 07:29:28,983 INFO L87 Difference]: Start difference. First operand 2645 states and 2924 transitions. Second operand has 8 states, 8 states have (on average 36.5) internal successors, (292), 8 states have internal predecessors, (292), 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) [2021-10-13 07:29:32,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:29:32,098 INFO L93 Difference]: Finished difference Result 5119 states and 5689 transitions. [2021-10-13 07:29:32,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-13 07:29:32,102 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 36.5) internal successors, (292), 8 states have internal predecessors, (292), 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 373 [2021-10-13 07:29:32,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:29:32,115 INFO L225 Difference]: With dead ends: 5119 [2021-10-13 07:29:32,116 INFO L226 Difference]: Without dead ends: 2893 [2021-10-13 07:29:32,118 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 744 GetRequests, 730 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 682.7ms TimeCoverageRelationStatistics Valid=80, Invalid=160, Unknown=0, NotChecked=0, Total=240 [2021-10-13 07:29:32,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2893 states. [2021-10-13 07:29:32,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2893 to 2853. [2021-10-13 07:29:32,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2853 states, 2852 states have (on average 1.099929873772791) internal successors, (3137), 2852 states have internal predecessors, (3137), 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) [2021-10-13 07:29:32,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2853 states to 2853 states and 3137 transitions. [2021-10-13 07:29:32,188 INFO L78 Accepts]: Start accepts. Automaton has 2853 states and 3137 transitions. Word has length 373 [2021-10-13 07:29:32,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:29:32,189 INFO L470 AbstractCegarLoop]: Abstraction has 2853 states and 3137 transitions. [2021-10-13 07:29:32,190 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 36.5) internal successors, (292), 8 states have internal predecessors, (292), 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) [2021-10-13 07:29:32,190 INFO L276 IsEmpty]: Start isEmpty. Operand 2853 states and 3137 transitions. [2021-10-13 07:29:32,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 383 [2021-10-13 07:29:32,197 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:29:32,197 INFO L512 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:29:32,218 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_468de366-5740-47de-aedd-6c7cb32d4f52/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2021-10-13 07:29:32,418 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_468de366-5740-47de-aedd-6c7cb32d4f52/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 07:29:32,419 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 07:29:32,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:29:32,419 INFO L82 PathProgramCache]: Analyzing trace with hash -2000279015, now seen corresponding path program 1 times [2021-10-13 07:29:32,421 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:29:32,421 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2096936589] [2021-10-13 07:29:32,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:29:32,421 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:29:32,421 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_468de366-5740-47de-aedd-6c7cb32d4f52/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:29:32,422 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_468de366-5740-47de-aedd-6c7cb32d4f52/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:29:32,423 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_468de366-5740-47de-aedd-6c7cb32d4f52/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2021-10-13 07:29:36,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:29:36,401 INFO L263 TraceCheckSpWp]: Trace formula consists of 448 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-13 07:29:36,404 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:29:37,942 INFO L134 CoverageAnalysis]: Checked inductivity of 371 backedges. 0 proven. 371 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:29:37,942 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:29:39,462 INFO L134 CoverageAnalysis]: Checked inductivity of 371 backedges. 260 proven. 20 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2021-10-13 07:29:39,463 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:29:39,463 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2096936589] [2021-10-13 07:29:39,463 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2096936589] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-13 07:29:39,463 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [940198668] [2021-10-13 07:29:39,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:29:39,464 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-13 07:29:39,464 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_468de366-5740-47de-aedd-6c7cb32d4f52/bin/utaipan-q2qaUkNPG8/cvc4 [2021-10-13 07:29:39,465 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_468de366-5740-47de-aedd-6c7cb32d4f52/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-13 07:29:39,466 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_468de366-5740-47de-aedd-6c7cb32d4f52/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (18)] Waiting until timeout for monitored process [2021-10-13 07:29:45,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:29:45,584 INFO L263 TraceCheckSpWp]: Trace formula consists of 448 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-13 07:29:45,587 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:29:47,287 INFO L134 CoverageAnalysis]: Checked inductivity of 371 backedges. 0 proven. 371 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:29:47,287 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:29:49,492 INFO L134 CoverageAnalysis]: Checked inductivity of 371 backedges. 260 proven. 20 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2021-10-13 07:29:49,492 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [940198668] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-13 07:29:49,492 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1205128957] [2021-10-13 07:29:49,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:29:49,492 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 07:29:49,493 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_468de366-5740-47de-aedd-6c7cb32d4f52/bin/utaipan-q2qaUkNPG8/z3 [2021-10-13 07:29:49,493 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_468de366-5740-47de-aedd-6c7cb32d4f52/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 07:29:49,494 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_468de366-5740-47de-aedd-6c7cb32d4f52/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2021-10-13 07:29:54,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:29:54,906 INFO L263 TraceCheckSpWp]: Trace formula consists of 448 conjuncts, 12 conjunts are in the unsatisfiable core [2021-10-13 07:29:54,909 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:29:59,586 INFO L134 CoverageAnalysis]: Checked inductivity of 371 backedges. 0 proven. 371 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:29:59,586 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:30:01,451 INFO L134 CoverageAnalysis]: Checked inductivity of 371 backedges. 260 proven. 20 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2021-10-13 07:30:01,451 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1205128957] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-13 07:30:01,451 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2021-10-13 07:30:01,452 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 7, 7, 6, 4] total 17 [2021-10-13 07:30:01,452 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1557726018] [2021-10-13 07:30:01,454 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-10-13 07:30:01,454 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:30:01,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-10-13 07:30:01,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=186, Unknown=0, NotChecked=0, Total=272 [2021-10-13 07:30:01,456 INFO L87 Difference]: Start difference. First operand 2853 states and 3137 transitions. Second operand has 17 states, 17 states have (on average 63.529411764705884) internal successors, (1080), 17 states have internal predecessors, (1080), 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) [2021-10-13 07:30:34,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:30:34,449 INFO L93 Difference]: Finished difference Result 8282 states and 9197 transitions. [2021-10-13 07:30:34,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-10-13 07:30:34,450 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 63.529411764705884) internal successors, (1080), 17 states have internal predecessors, (1080), 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 382 [2021-10-13 07:30:34,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:30:34,450 INFO L225 Difference]: With dead ends: 8282 [2021-10-13 07:30:34,451 INFO L226 Difference]: Without dead ends: 0 [2021-10-13 07:30:34,460 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2307 GetRequests, 2280 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 181 ImplicationChecksByTransitivity, 708.2ms TimeCoverageRelationStatistics Valid=240, Invalid=516, Unknown=0, NotChecked=0, Total=756 [2021-10-13 07:30:34,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-13 07:30:34,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-13 07:30:34,462 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) [2021-10-13 07:30:34,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-13 07:30:34,463 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 382 [2021-10-13 07:30:34,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:30:34,463 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-13 07:30:34,463 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 63.529411764705884) internal successors, (1080), 17 states have internal predecessors, (1080), 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) [2021-10-13 07:30:34,463 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-13 07:30:34,467 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-13 07:30:34,470 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 07:30:34,530 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_468de366-5740-47de-aedd-6c7cb32d4f52/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2021-10-13 07:30:34,700 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_468de366-5740-47de-aedd-6c7cb32d4f52/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (18)] Forceful destruction successful, exit code 0 [2021-10-13 07:30:34,905 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_468de366-5740-47de-aedd-6c7cb32d4f52/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2021-10-13 07:30:35,087 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_468de366-5740-47de-aedd-6c7cb32d4f52/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_468de366-5740-47de-aedd-6c7cb32d4f52/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_468de366-5740-47de-aedd-6c7cb32d4f52/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 07:30:35,089 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-13 07:30:35,093 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:30:35,763 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:30:36,148 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:30:49,688 WARN L207 SmtUtils]: Spent 13.54 s on a formula simplification. DAG size of input: 209 DAG size of output: 75 [2021-10-13 07:31:03,547 WARN L207 SmtUtils]: Spent 13.86 s on a formula simplification. DAG size of input: 209 DAG size of output: 75 [2021-10-13 07:31:03,551 INFO L857 garLoopResultBuilder]: For program point L597(line 597) no Hoare annotation was computed. [2021-10-13 07:31:03,551 INFO L857 garLoopResultBuilder]: For program point L564(lines 564 582) no Hoare annotation was computed. [2021-10-13 07:31:03,551 INFO L857 garLoopResultBuilder]: For program point L333(lines 333 582) no Hoare annotation was computed. [2021-10-13 07:31:03,551 INFO L857 garLoopResultBuilder]: For program point L367(lines 367 582) no Hoare annotation was computed. [2021-10-13 07:31:03,551 INFO L857 garLoopResultBuilder]: For program point L301(lines 301 582) no Hoare annotation was computed. [2021-10-13 07:31:03,551 INFO L857 garLoopResultBuilder]: For program point L235(lines 235 582) no Hoare annotation was computed. [2021-10-13 07:31:03,552 INFO L857 garLoopResultBuilder]: For program point L202-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 07:31:03,552 INFO L857 garLoopResultBuilder]: For program point L169-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 07:31:03,552 INFO L857 garLoopResultBuilder]: For program point L136-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 07:31:03,552 INFO L857 garLoopResultBuilder]: For program point L103-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 07:31:03,552 INFO L857 garLoopResultBuilder]: For program point L70-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 07:31:03,552 INFO L857 garLoopResultBuilder]: For program point L37-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 07:31:03,552 INFO L857 garLoopResultBuilder]: For program point L533(lines 533 582) no Hoare annotation was computed. [2021-10-13 07:31:03,552 INFO L857 garLoopResultBuilder]: For program point L203(line 203) no Hoare annotation was computed. [2021-10-13 07:31:03,553 INFO L857 garLoopResultBuilder]: For program point L170(line 170) no Hoare annotation was computed. [2021-10-13 07:31:03,553 INFO L857 garLoopResultBuilder]: For program point L137(line 137) no Hoare annotation was computed. [2021-10-13 07:31:03,553 INFO L857 garLoopResultBuilder]: For program point L104(line 104) no Hoare annotation was computed. [2021-10-13 07:31:03,553 INFO L857 garLoopResultBuilder]: For program point L71(line 71) no Hoare annotation was computed. [2021-10-13 07:31:03,554 INFO L857 garLoopResultBuilder]: For program point L38(line 38) no Hoare annotation was computed. [2021-10-13 07:31:03,554 INFO L857 garLoopResultBuilder]: For program point L567(lines 567 582) no Hoare annotation was computed. [2021-10-13 07:31:03,555 INFO L857 garLoopResultBuilder]: For program point L435(lines 435 582) no Hoare annotation was computed. [2021-10-13 07:31:03,555 INFO L857 garLoopResultBuilder]: For program point L336(lines 336 582) no Hoare annotation was computed. [2021-10-13 07:31:03,555 INFO L857 garLoopResultBuilder]: For program point L270(lines 270 582) no Hoare annotation was computed. [2021-10-13 07:31:03,555 INFO L857 garLoopResultBuilder]: For program point L403(lines 403 582) no Hoare annotation was computed. [2021-10-13 07:31:03,555 INFO L857 garLoopResultBuilder]: For program point L370(lines 370 582) no Hoare annotation was computed. [2021-10-13 07:31:03,556 INFO L857 garLoopResultBuilder]: For program point L205-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 07:31:03,556 INFO L857 garLoopResultBuilder]: For program point L172-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 07:31:03,556 INFO L857 garLoopResultBuilder]: For program point L139-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 07:31:03,556 INFO L857 garLoopResultBuilder]: For program point L106-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 07:31:03,557 INFO L857 garLoopResultBuilder]: For program point L73-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 07:31:03,557 INFO L857 garLoopResultBuilder]: For program point L40-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 07:31:03,558 INFO L857 garLoopResultBuilder]: For program point L536(lines 536 582) no Hoare annotation was computed. [2021-10-13 07:31:03,558 INFO L857 garLoopResultBuilder]: For program point L503(lines 503 582) no Hoare annotation was computed. [2021-10-13 07:31:03,558 INFO L857 garLoopResultBuilder]: For program point L470(lines 470 582) no Hoare annotation was computed. [2021-10-13 07:31:03,558 INFO L857 garLoopResultBuilder]: For program point L206(line 206) no Hoare annotation was computed. [2021-10-13 07:31:03,558 INFO L857 garLoopResultBuilder]: For program point L173(line 173) no Hoare annotation was computed. [2021-10-13 07:31:03,558 INFO L857 garLoopResultBuilder]: For program point L140(line 140) no Hoare annotation was computed. [2021-10-13 07:31:03,558 INFO L857 garLoopResultBuilder]: For program point L107(line 107) no Hoare annotation was computed. [2021-10-13 07:31:03,558 INFO L857 garLoopResultBuilder]: For program point L74(line 74) no Hoare annotation was computed. [2021-10-13 07:31:03,558 INFO L857 garLoopResultBuilder]: For program point L41(line 41) no Hoare annotation was computed. [2021-10-13 07:31:03,558 INFO L857 garLoopResultBuilder]: For program point L339(lines 339 582) no Hoare annotation was computed. [2021-10-13 07:31:03,558 INFO L857 garLoopResultBuilder]: For program point L306(lines 306 582) no Hoare annotation was computed. [2021-10-13 07:31:03,559 INFO L857 garLoopResultBuilder]: For program point L241(lines 241 582) no Hoare annotation was computed. [2021-10-13 07:31:03,559 INFO L857 garLoopResultBuilder]: For program point L208-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 07:31:03,559 INFO L857 garLoopResultBuilder]: For program point L175-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 07:31:03,559 INFO L857 garLoopResultBuilder]: For program point L142-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 07:31:03,559 INFO L857 garLoopResultBuilder]: For program point L109-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 07:31:03,559 INFO L857 garLoopResultBuilder]: For program point L76-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 07:31:03,559 INFO L857 garLoopResultBuilder]: For program point L43-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 07:31:03,559 INFO L857 garLoopResultBuilder]: For program point L539(lines 539 582) no Hoare annotation was computed. [2021-10-13 07:31:03,560 INFO L857 garLoopResultBuilder]: For program point L440(lines 440 582) no Hoare annotation was computed. [2021-10-13 07:31:03,560 INFO L857 garLoopResultBuilder]: For program point L275(lines 275 582) no Hoare annotation was computed. [2021-10-13 07:31:03,560 INFO L857 garLoopResultBuilder]: For program point L209(line 209) no Hoare annotation was computed. [2021-10-13 07:31:03,560 INFO L857 garLoopResultBuilder]: For program point L176(line 176) no Hoare annotation was computed. [2021-10-13 07:31:03,560 INFO L857 garLoopResultBuilder]: For program point L143(line 143) no Hoare annotation was computed. [2021-10-13 07:31:03,560 INFO L857 garLoopResultBuilder]: For program point L110(line 110) no Hoare annotation was computed. [2021-10-13 07:31:03,561 INFO L857 garLoopResultBuilder]: For program point L77(line 77) no Hoare annotation was computed. [2021-10-13 07:31:03,561 INFO L857 garLoopResultBuilder]: For program point L44(line 44) no Hoare annotation was computed. [2021-10-13 07:31:03,561 INFO L857 garLoopResultBuilder]: For program point L573(lines 573 582) no Hoare annotation was computed. [2021-10-13 07:31:03,561 INFO L857 garLoopResultBuilder]: For program point L408(lines 408 582) no Hoare annotation was computed. [2021-10-13 07:31:03,561 INFO L857 garLoopResultBuilder]: For program point L375(lines 375 582) no Hoare annotation was computed. [2021-10-13 07:31:03,562 INFO L857 garLoopResultBuilder]: For program point L475(lines 475 582) no Hoare annotation was computed. [2021-10-13 07:31:03,562 INFO L857 garLoopResultBuilder]: For program point L211-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 07:31:03,562 INFO L857 garLoopResultBuilder]: For program point L178-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 07:31:03,562 INFO L857 garLoopResultBuilder]: For program point L145-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 07:31:03,562 INFO L857 garLoopResultBuilder]: For program point L112-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 07:31:03,562 INFO L857 garLoopResultBuilder]: For program point L79-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 07:31:03,563 INFO L857 garLoopResultBuilder]: For program point L46-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 07:31:03,563 INFO L857 garLoopResultBuilder]: For program point L509(lines 509 582) no Hoare annotation was computed. [2021-10-13 07:31:03,563 INFO L857 garLoopResultBuilder]: For program point L311(lines 311 582) no Hoare annotation was computed. [2021-10-13 07:31:03,563 INFO L857 garLoopResultBuilder]: For program point L212(line 212) no Hoare annotation was computed. [2021-10-13 07:31:03,563 INFO L857 garLoopResultBuilder]: For program point L179(line 179) no Hoare annotation was computed. [2021-10-13 07:31:03,563 INFO L857 garLoopResultBuilder]: For program point L146(line 146) no Hoare annotation was computed. [2021-10-13 07:31:03,563 INFO L857 garLoopResultBuilder]: For program point L113(line 113) no Hoare annotation was computed. [2021-10-13 07:31:03,564 INFO L857 garLoopResultBuilder]: For program point L80(line 80) no Hoare annotation was computed. [2021-10-13 07:31:03,564 INFO L857 garLoopResultBuilder]: For program point L47(line 47) no Hoare annotation was computed. [2021-10-13 07:31:03,564 INFO L857 garLoopResultBuilder]: For program point L345(lines 345 582) no Hoare annotation was computed. [2021-10-13 07:31:03,564 INFO L857 garLoopResultBuilder]: For program point L246(lines 246 582) no Hoare annotation was computed. [2021-10-13 07:31:03,564 INFO L857 garLoopResultBuilder]: For program point L544(lines 544 582) no Hoare annotation was computed. [2021-10-13 07:31:03,564 INFO L857 garLoopResultBuilder]: For program point L181-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 07:31:03,564 INFO L857 garLoopResultBuilder]: For program point L148-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 07:31:03,565 INFO L857 garLoopResultBuilder]: For program point L115-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 07:31:03,565 INFO L857 garLoopResultBuilder]: For program point L82-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 07:31:03,566 INFO L857 garLoopResultBuilder]: For program point L49-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 07:31:03,566 INFO L857 garLoopResultBuilder]: For program point L446(lines 446 582) no Hoare annotation was computed. [2021-10-13 07:31:03,566 INFO L857 garLoopResultBuilder]: For program point L413(lines 413 582) no Hoare annotation was computed. [2021-10-13 07:31:03,566 INFO L857 garLoopResultBuilder]: For program point L380(lines 380 582) no Hoare annotation was computed. [2021-10-13 07:31:03,566 INFO L857 garLoopResultBuilder]: For program point L281(lines 281 582) no Hoare annotation was computed. [2021-10-13 07:31:03,566 INFO L857 garLoopResultBuilder]: For program point L182(line 182) no Hoare annotation was computed. [2021-10-13 07:31:03,566 INFO L857 garLoopResultBuilder]: For program point L149(line 149) no Hoare annotation was computed. [2021-10-13 07:31:03,567 INFO L857 garLoopResultBuilder]: For program point L116(line 116) no Hoare annotation was computed. [2021-10-13 07:31:03,567 INFO L857 garLoopResultBuilder]: For program point L83(line 83) no Hoare annotation was computed. [2021-10-13 07:31:03,576 INFO L857 garLoopResultBuilder]: For program point L50(line 50) no Hoare annotation was computed. [2021-10-13 07:31:03,576 INFO L857 garLoopResultBuilder]: For program point L579(lines 579 582) no Hoare annotation was computed. [2021-10-13 07:31:03,576 INFO L857 garLoopResultBuilder]: For program point L249(lines 249 582) no Hoare annotation was computed. [2021-10-13 07:31:03,576 INFO L857 garLoopResultBuilder]: For program point L514(lines 514 582) no Hoare annotation was computed. [2021-10-13 07:31:03,576 INFO L857 garLoopResultBuilder]: For program point L481(lines 481 582) no Hoare annotation was computed. [2021-10-13 07:31:03,576 INFO L857 garLoopResultBuilder]: For program point L316(lines 316 582) no Hoare annotation was computed. [2021-10-13 07:31:03,576 INFO L857 garLoopResultBuilder]: For program point L184-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 07:31:03,577 INFO L857 garLoopResultBuilder]: For program point L151-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 07:31:03,577 INFO L857 garLoopResultBuilder]: For program point L118-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 07:31:03,577 INFO L857 garLoopResultBuilder]: For program point L85-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 07:31:03,577 INFO L857 garLoopResultBuilder]: For program point L52-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 07:31:03,577 INFO L857 garLoopResultBuilder]: For program point L350(lines 350 582) no Hoare annotation was computed. [2021-10-13 07:31:03,577 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-13 07:31:03,577 INFO L857 garLoopResultBuilder]: For program point L185(line 185) no Hoare annotation was computed. [2021-10-13 07:31:03,577 INFO L857 garLoopResultBuilder]: For program point L152(line 152) no Hoare annotation was computed. [2021-10-13 07:31:03,577 INFO L857 garLoopResultBuilder]: For program point L119(line 119) no Hoare annotation was computed. [2021-10-13 07:31:03,577 INFO L857 garLoopResultBuilder]: For program point L86(line 86) no Hoare annotation was computed. [2021-10-13 07:31:03,578 INFO L857 garLoopResultBuilder]: For program point L53(line 53) no Hoare annotation was computed. [2021-10-13 07:31:03,579 INFO L853 garLoopResultBuilder]: At program point L583(lines 30 584) the Hoare annotation is: (let ((.cse13 (= (_ bv8 32) ~a19~0))) (let ((.cse1 (not .cse13)) (.cse3 (= (_ bv0 32) ~a12~0))) (let ((.cse12 (= ~a19~0 (_ bv9 32))) (.cse7 (not (bvsle (bvadd (_ bv505228 32) (bvsdiv (bvmul (bvsdiv ~a1~0 (_ bv5 32)) (_ bv5 32)) (_ bv5 32))) (_ bv4294967283 32)))) (.cse2 (= (_ bv14 32) ~a4~0)) (.cse6 (not (= (_ bv10 32) ~a19~0))) (.cse10 (or .cse1 (not .cse3))) (.cse5 (= (_ bv2 32) ~a10~0)) (.cse11 (not (bvslt (_ bv38 32) ~a1~0)))) (let ((.cse0 (let ((.cse14 (or (and .cse5 .cse10) (and .cse5 .cse11)))) (or (and .cse12 .cse2 .cse3 .cse14 .cse6) (and .cse7 .cse2 .cse3 .cse14 .cse6)))) (.cse9 (not .cse5)) (.cse8 (= (_ bv1 32) ~a10~0)) (.cse4 (bvslt (_ bv218 32) (bvadd ~a1~0 (_ bv592110 32))))) (or (and .cse0 .cse1) (and .cse2 .cse3 .cse4 (bvsge (_ bv38 32) ~a1~0) (= (_ bv0 32) ~a10~0)) (and (bvslt (_ bv218 32) ~a1~0) .cse2 .cse3 .cse5 .cse4 .cse6) (and .cse7 .cse2 .cse3 .cse8) (and .cse0 .cse4) (and (not (= (_ bv3 32) ~a10~0)) .cse9 .cse2 .cse3 (not .cse8) .cse6) (and (not (bvslt (_ bv4294967283 32) ~a1~0)) .cse7 .cse9 .cse2 .cse3 .cse10 .cse6 .cse11) (and .cse7 .cse9 .cse2 .cse3 .cse10 .cse6 .cse11 (not .cse12)) (and .cse2 .cse3 .cse13 .cse8) (and .cse12 .cse2 .cse3 .cse4 (not (= ULTIMATE.start_calculate_output_~input (_ bv5 32))))))))) [2021-10-13 07:31:03,579 INFO L857 garLoopResultBuilder]: For program point L550(lines 550 582) no Hoare annotation was computed. [2021-10-13 07:31:03,579 INFO L857 garLoopResultBuilder]: For program point L418(lines 418 582) no Hoare annotation was computed. [2021-10-13 07:31:03,579 INFO L857 garLoopResultBuilder]: For program point L385(lines 385 582) no Hoare annotation was computed. [2021-10-13 07:31:03,579 INFO L857 garLoopResultBuilder]: For program point L220(lines 220 582) no Hoare annotation was computed. [2021-10-13 07:31:03,579 INFO L857 garLoopResultBuilder]: For program point L187-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 07:31:03,579 INFO L857 garLoopResultBuilder]: For program point L154-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 07:31:03,579 INFO L857 garLoopResultBuilder]: For program point L121-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 07:31:03,580 INFO L857 garLoopResultBuilder]: For program point L88-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 07:31:03,580 INFO L857 garLoopResultBuilder]: For program point L55-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 07:31:03,580 INFO L857 garLoopResultBuilder]: For program point L452(lines 452 582) no Hoare annotation was computed. [2021-10-13 07:31:03,580 INFO L857 garLoopResultBuilder]: For program point L287(lines 287 582) no Hoare annotation was computed. [2021-10-13 07:31:03,580 INFO L857 garLoopResultBuilder]: For program point L254(lines 254 582) no Hoare annotation was computed. [2021-10-13 07:31:03,580 INFO L857 garLoopResultBuilder]: For program point L188(line 188) no Hoare annotation was computed. [2021-10-13 07:31:03,580 INFO L857 garLoopResultBuilder]: For program point L155(line 155) no Hoare annotation was computed. [2021-10-13 07:31:03,580 INFO L857 garLoopResultBuilder]: For program point L122(line 122) no Hoare annotation was computed. [2021-10-13 07:31:03,580 INFO L857 garLoopResultBuilder]: For program point L89(line 89) no Hoare annotation was computed. [2021-10-13 07:31:03,580 INFO L857 garLoopResultBuilder]: For program point L56(line 56) no Hoare annotation was computed. [2021-10-13 07:31:03,580 INFO L857 garLoopResultBuilder]: For program point L519(lines 519 582) no Hoare annotation was computed. [2021-10-13 07:31:03,580 INFO L857 garLoopResultBuilder]: For program point L486(lines 486 582) no Hoare annotation was computed. [2021-10-13 07:31:03,580 INFO L860 garLoopResultBuilder]: At program point L586(lines 586 602) the Hoare annotation is: true [2021-10-13 07:31:03,580 INFO L857 garLoopResultBuilder]: For program point L388(lines 388 582) no Hoare annotation was computed. [2021-10-13 07:31:03,581 INFO L857 garLoopResultBuilder]: For program point L355(lines 355 582) no Hoare annotation was computed. [2021-10-13 07:31:03,581 INFO L857 garLoopResultBuilder]: For program point L322(lines 322 582) no Hoare annotation was computed. [2021-10-13 07:31:03,581 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-13 07:31:03,581 INFO L857 garLoopResultBuilder]: For program point L190-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 07:31:03,581 INFO L857 garLoopResultBuilder]: For program point L157-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 07:31:03,581 INFO L857 garLoopResultBuilder]: For program point L124-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 07:31:03,581 INFO L857 garLoopResultBuilder]: For program point L91-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 07:31:03,581 INFO L857 garLoopResultBuilder]: For program point L58-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 07:31:03,581 INFO L857 garLoopResultBuilder]: For program point L191(line 191) no Hoare annotation was computed. [2021-10-13 07:31:03,581 INFO L857 garLoopResultBuilder]: For program point L158(line 158) no Hoare annotation was computed. [2021-10-13 07:31:03,581 INFO L857 garLoopResultBuilder]: For program point L125(line 125) no Hoare annotation was computed. [2021-10-13 07:31:03,581 INFO L857 garLoopResultBuilder]: For program point L92(line 92) no Hoare annotation was computed. [2021-10-13 07:31:03,581 INFO L857 garLoopResultBuilder]: For program point L59(line 59) no Hoare annotation was computed. [2021-10-13 07:31:03,581 INFO L857 garLoopResultBuilder]: For program point L555(lines 555 582) no Hoare annotation was computed. [2021-10-13 07:31:03,582 INFO L857 garLoopResultBuilder]: For program point L225(lines 225 582) no Hoare annotation was computed. [2021-10-13 07:31:03,582 INFO L857 garLoopResultBuilder]: For program point L424(lines 424 582) no Hoare annotation was computed. [2021-10-13 07:31:03,582 INFO L857 garLoopResultBuilder]: For program point L259(lines 259 582) no Hoare annotation was computed. [2021-10-13 07:31:03,582 INFO L857 garLoopResultBuilder]: For program point L193-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 07:31:03,582 INFO L857 garLoopResultBuilder]: For program point L160-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 07:31:03,582 INFO L857 garLoopResultBuilder]: For program point L127-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 07:31:03,582 INFO L857 garLoopResultBuilder]: For program point L94-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 07:31:03,582 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-13 07:31:03,582 INFO L857 garLoopResultBuilder]: For program point L61-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 07:31:03,582 INFO L857 garLoopResultBuilder]: For program point L524(lines 524 582) no Hoare annotation was computed. [2021-10-13 07:31:03,582 INFO L857 garLoopResultBuilder]: For program point L491(lines 491 582) no Hoare annotation was computed. [2021-10-13 07:31:03,582 INFO L857 garLoopResultBuilder]: For program point L458(lines 458 582) no Hoare annotation was computed. [2021-10-13 07:31:03,582 INFO L857 garLoopResultBuilder]: For program point L293(lines 293 582) no Hoare annotation was computed. [2021-10-13 07:31:03,582 INFO L857 garLoopResultBuilder]: For program point L194(line 194) no Hoare annotation was computed. [2021-10-13 07:31:03,583 INFO L857 garLoopResultBuilder]: For program point L161(line 161) no Hoare annotation was computed. [2021-10-13 07:31:03,583 INFO L857 garLoopResultBuilder]: For program point L128(line 128) no Hoare annotation was computed. [2021-10-13 07:31:03,583 INFO L857 garLoopResultBuilder]: For program point L95(line 95) no Hoare annotation was computed. [2021-10-13 07:31:03,583 INFO L857 garLoopResultBuilder]: For program point L62(line 62) no Hoare annotation was computed. [2021-10-13 07:31:03,583 INFO L857 garLoopResultBuilder]: For program point L558(lines 558 582) no Hoare annotation was computed. [2021-10-13 07:31:03,583 INFO L857 garLoopResultBuilder]: For program point L393(lines 393 582) no Hoare annotation was computed. [2021-10-13 07:31:03,583 INFO L857 garLoopResultBuilder]: For program point L327(lines 327 582) no Hoare annotation was computed. [2021-10-13 07:31:03,583 INFO L853 garLoopResultBuilder]: At program point L592-2(lines 592 601) the Hoare annotation is: (let ((.cse13 (= (_ bv8 32) ~a19~0))) (let ((.cse1 (not .cse13)) (.cse3 (= (_ bv0 32) ~a12~0))) (let ((.cse12 (= ~a19~0 (_ bv9 32))) (.cse7 (not (bvsle (bvadd (_ bv505228 32) (bvsdiv (bvmul (bvsdiv ~a1~0 (_ bv5 32)) (_ bv5 32)) (_ bv5 32))) (_ bv4294967283 32)))) (.cse2 (= (_ bv14 32) ~a4~0)) (.cse6 (not (= (_ bv10 32) ~a19~0))) (.cse10 (or .cse1 (not .cse3))) (.cse5 (= (_ bv2 32) ~a10~0)) (.cse11 (not (bvslt (_ bv38 32) ~a1~0)))) (let ((.cse0 (let ((.cse14 (or (and .cse5 .cse10) (and .cse5 .cse11)))) (or (and .cse12 .cse2 .cse3 .cse14 .cse6) (and .cse7 .cse2 .cse3 .cse14 .cse6)))) (.cse9 (not .cse5)) (.cse8 (= (_ bv1 32) ~a10~0)) (.cse4 (bvslt (_ bv218 32) (bvadd ~a1~0 (_ bv592110 32))))) (or (and .cse0 .cse1) (and .cse2 .cse3 .cse4 (bvsge (_ bv38 32) ~a1~0) (= (_ bv0 32) ~a10~0)) (and (bvslt (_ bv218 32) ~a1~0) .cse2 .cse3 .cse5 .cse4 .cse6) (and .cse7 .cse2 .cse3 .cse8) (and .cse0 .cse4) (and (not (= (_ bv3 32) ~a10~0)) .cse9 .cse2 .cse3 (not .cse8) .cse6) (and (not (bvslt (_ bv4294967283 32) ~a1~0)) .cse7 .cse9 .cse2 .cse3 .cse10 .cse6 .cse11) (and .cse7 .cse9 .cse2 .cse3 .cse10 .cse6 .cse11 (not .cse12)) (and .cse2 .cse3 .cse13 .cse8) (and .cse12 .cse2 .cse3 .cse4 (not (= ULTIMATE.start_calculate_output_~input (_ bv5 32))))))))) [2021-10-13 07:31:03,583 INFO L857 garLoopResultBuilder]: For program point L361(lines 361 582) no Hoare annotation was computed. [2021-10-13 07:31:03,583 INFO L857 garLoopResultBuilder]: For program point L196-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 07:31:03,583 INFO L857 garLoopResultBuilder]: For program point L163-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 07:31:03,583 INFO L857 garLoopResultBuilder]: For program point L130-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 07:31:03,583 INFO L857 garLoopResultBuilder]: For program point L97-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 07:31:03,584 INFO L857 garLoopResultBuilder]: For program point L31(lines 31 33) no Hoare annotation was computed. [2021-10-13 07:31:03,584 INFO L857 garLoopResultBuilder]: For program point L64-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 07:31:03,584 INFO L857 garLoopResultBuilder]: For program point L31-2(lines 30 584) no Hoare annotation was computed. [2021-10-13 07:31:03,584 INFO L857 garLoopResultBuilder]: For program point L527(lines 527 582) no Hoare annotation was computed. [2021-10-13 07:31:03,584 INFO L857 garLoopResultBuilder]: For program point L296(lines 296 582) no Hoare annotation was computed. [2021-10-13 07:31:03,584 INFO L857 garLoopResultBuilder]: For program point L230(lines 230 582) no Hoare annotation was computed. [2021-10-13 07:31:03,584 INFO L857 garLoopResultBuilder]: For program point L197(line 197) no Hoare annotation was computed. [2021-10-13 07:31:03,584 INFO L857 garLoopResultBuilder]: For program point L164(line 164) no Hoare annotation was computed. [2021-10-13 07:31:03,584 INFO L857 garLoopResultBuilder]: For program point L131(line 131) no Hoare annotation was computed. [2021-10-13 07:31:03,584 INFO L857 garLoopResultBuilder]: For program point L98(line 98) no Hoare annotation was computed. [2021-10-13 07:31:03,584 INFO L857 garLoopResultBuilder]: For program point L65(line 65) no Hoare annotation was computed. [2021-10-13 07:31:03,584 INFO L857 garLoopResultBuilder]: For program point L32(line 32) no Hoare annotation was computed. [2021-10-13 07:31:03,584 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-10-13 07:31:03,585 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 80) no Hoare annotation was computed. [2021-10-13 07:31:03,585 INFO L857 garLoopResultBuilder]: For program point L429(lines 429 582) no Hoare annotation was computed. [2021-10-13 07:31:03,585 INFO L857 garLoopResultBuilder]: For program point L330(lines 330 582) no Hoare annotation was computed. [2021-10-13 07:31:03,585 INFO L857 garLoopResultBuilder]: For program point L264(lines 264 582) no Hoare annotation was computed. [2021-10-13 07:31:03,585 INFO L857 garLoopResultBuilder]: For program point L364(lines 364 582) no Hoare annotation was computed. [2021-10-13 07:31:03,585 INFO L857 garLoopResultBuilder]: For program point L199-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 07:31:03,585 INFO L857 garLoopResultBuilder]: For program point L166-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 07:31:03,585 INFO L857 garLoopResultBuilder]: For program point L133-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 07:31:03,585 INFO L857 garLoopResultBuilder]: For program point L100-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 07:31:03,585 INFO L857 garLoopResultBuilder]: For program point L67-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 07:31:03,585 INFO L857 garLoopResultBuilder]: For program point L34-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 07:31:03,585 INFO L857 garLoopResultBuilder]: For program point L497(lines 497 582) no Hoare annotation was computed. [2021-10-13 07:31:03,585 INFO L857 garLoopResultBuilder]: For program point L464(lines 464 582) no Hoare annotation was computed. [2021-10-13 07:31:03,585 INFO L857 garLoopResultBuilder]: For program point L398(lines 398 582) no Hoare annotation was computed. [2021-10-13 07:31:03,585 INFO L857 garLoopResultBuilder]: For program point L200(line 200) no Hoare annotation was computed. [2021-10-13 07:31:03,586 INFO L857 garLoopResultBuilder]: For program point L167(line 167) no Hoare annotation was computed. [2021-10-13 07:31:03,586 INFO L857 garLoopResultBuilder]: For program point L134(line 134) no Hoare annotation was computed. [2021-10-13 07:31:03,586 INFO L857 garLoopResultBuilder]: For program point L101(line 101) no Hoare annotation was computed. [2021-10-13 07:31:03,586 INFO L857 garLoopResultBuilder]: For program point L68(line 68) no Hoare annotation was computed. [2021-10-13 07:31:03,586 INFO L857 garLoopResultBuilder]: For program point L35(line 35) no Hoare annotation was computed. [2021-10-13 07:31:03,589 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-13 07:31:03,623 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 07:31:03 BoogieIcfgContainer [2021-10-13 07:31:03,637 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-13 07:31:03,638 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-13 07:31:03,638 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-13 07:31:03,638 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-13 07:31:03,638 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:23:57" (3/4) ... [2021-10-13 07:31:03,641 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-13 07:31:03,669 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2021-10-13 07:31:03,672 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-10-13 07:31:03,673 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-13 07:31:03,674 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-13 07:31:03,795 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_468de366-5740-47de-aedd-6c7cb32d4f52/bin/utaipan-q2qaUkNPG8/witness.graphml [2021-10-13 07:31:03,795 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-13 07:31:03,797 INFO L168 Benchmark]: Toolchain (without parser) took 430513.26 ms. Allocated memory was 56.6 MB in the beginning and 446.7 MB in the end (delta: 390.1 MB). Free memory was 31.2 MB in the beginning and 178.6 MB in the end (delta: -147.4 MB). Peak memory consumption was 242.1 MB. Max. memory is 16.1 GB. [2021-10-13 07:31:03,797 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 56.6 MB. Free memory was 36.8 MB in the beginning and 36.7 MB in the end (delta: 63.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 07:31:03,798 INFO L168 Benchmark]: CACSL2BoogieTranslator took 791.78 ms. Allocated memory was 56.6 MB in the beginning and 75.5 MB in the end (delta: 18.9 MB). Free memory was 31.1 MB in the beginning and 55.7 MB in the end (delta: -24.6 MB). Peak memory consumption was 13.4 MB. Max. memory is 16.1 GB. [2021-10-13 07:31:03,798 INFO L168 Benchmark]: Boogie Procedure Inliner took 73.29 ms. Allocated memory is still 75.5 MB. Free memory was 55.7 MB in the beginning and 50.3 MB in the end (delta: 5.4 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-13 07:31:03,799 INFO L168 Benchmark]: Boogie Preprocessor took 66.39 ms. Allocated memory is still 75.5 MB. Free memory was 50.3 MB in the beginning and 46.1 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-13 07:31:03,799 INFO L168 Benchmark]: RCFGBuilder took 3105.20 ms. Allocated memory was 75.5 MB in the beginning and 100.7 MB in the end (delta: 25.2 MB). Free memory was 46.1 MB in the beginning and 69.2 MB in the end (delta: -23.1 MB). Peak memory consumption was 20.5 MB. Max. memory is 16.1 GB. [2021-10-13 07:31:03,799 INFO L168 Benchmark]: TraceAbstraction took 426311.50 ms. Allocated memory was 100.7 MB in the beginning and 446.7 MB in the end (delta: 346.0 MB). Free memory was 68.7 MB in the beginning and 194.4 MB in the end (delta: -125.7 MB). Peak memory consumption was 351.6 MB. Max. memory is 16.1 GB. [2021-10-13 07:31:03,800 INFO L168 Benchmark]: Witness Printer took 157.88 ms. Allocated memory is still 446.7 MB. Free memory was 194.4 MB in the beginning and 178.6 MB in the end (delta: 15.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2021-10-13 07:31:03,803 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 56.6 MB. Free memory was 36.8 MB in the beginning and 36.7 MB in the end (delta: 63.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 791.78 ms. Allocated memory was 56.6 MB in the beginning and 75.5 MB in the end (delta: 18.9 MB). Free memory was 31.1 MB in the beginning and 55.7 MB in the end (delta: -24.6 MB). Peak memory consumption was 13.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 73.29 ms. Allocated memory is still 75.5 MB. Free memory was 55.7 MB in the beginning and 50.3 MB in the end (delta: 5.4 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 66.39 ms. Allocated memory is still 75.5 MB. Free memory was 50.3 MB in the beginning and 46.1 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 3105.20 ms. Allocated memory was 75.5 MB in the beginning and 100.7 MB in the end (delta: 25.2 MB). Free memory was 46.1 MB in the beginning and 69.2 MB in the end (delta: -23.1 MB). Peak memory consumption was 20.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 426311.50 ms. Allocated memory was 100.7 MB in the beginning and 446.7 MB in the end (delta: 346.0 MB). Free memory was 68.7 MB in the beginning and 194.4 MB in the end (delta: -125.7 MB). Peak memory consumption was 351.6 MB. Max. memory is 16.1 GB. * Witness Printer took 157.88 ms. Allocated memory is still 446.7 MB. Free memory was 194.4 MB in the beginning and 178.6 MB in the end (delta: 15.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 80]: 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, 206 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 426190.9ms, OverallIterations: 10, TraceHistogramMax: 4, EmptinessCheckTime: 78.1ms, AutomataDifference: 257716.3ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 28462.8ms, InitialAbstractionConstructionTime: 14.8ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 488 SDtfs, 4943 SDslu, 328 SDs, 0 SdLazy, 16235 SolverSat, 2766 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 202093.2ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 9246 GetRequests, 9104 SyntacticMatches, 4 SemanticMatches, 138 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1295 ImplicationChecksByTransitivity, 43258.3ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=2853occurred in iteration=9, InterpolantAutomatonStates: 98, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 511.1ms AutomataMinimizationTime, 10 MinimizatonAttempts, 3330 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 100 NumberOfFragments, 763 HoareAnnotationTreeSize, 3 FomulaSimplifications, 19430 FormulaSimplificationTreeSizeReduction, 1057.8ms HoareSimplificationTime, 3 FomulaSimplificationsInter, 31212 FormulaSimplificationTreeSizeReductionInter, 27396.5ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 356.3ms SsaConstructionTime, 2218.1ms SatisfiabilityAnalysisTime, 104083.0ms InterpolantComputationTime, 4599 NumberOfCodeBlocks, 4599 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 9162 ConstructedInterpolants, 0 QuantifiedInterpolants, 70314 SizeOfPredicates, 68 NumberOfNonLiveVariables, 5675 ConjunctsInSsa, 124 ConjunctsInUnsatCore, 36 InterpolantComputations, 14 PerfectInterpolantSequences, 5364/7480 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: 592]: Loop Invariant Derived loop invariant: ((((((((((((((a19 == 9bv32 && 14bv32 == a4) && 0bv32 == a12) && ((2bv32 == a10 && (!(8bv32 == a19) || !(0bv32 == a12))) || (2bv32 == a10 && !~bvslt32(38bv32, a1)))) && !(10bv32 == a19)) || ((((!~bvsle32(~bvadd64(505228bv32, ~bvsdiv32(~bvmul32(~bvsdiv32(a1, 5bv32), 5bv32), 5bv32)), 4294967283bv32) && 14bv32 == a4) && 0bv32 == a12) && ((2bv32 == a10 && (!(8bv32 == a19) || !(0bv32 == a12))) || (2bv32 == a10 && !~bvslt32(38bv32, a1)))) && !(10bv32 == a19))) && !(8bv32 == a19)) || ((((14bv32 == a4 && 0bv32 == a12) && ~bvslt32(218bv32, ~bvadd64(a1, 592110bv32))) && ~bvsge32(38bv32, a1)) && 0bv32 == a10)) || (((((~bvslt32(218bv32, a1) && 14bv32 == a4) && 0bv32 == a12) && 2bv32 == a10) && ~bvslt32(218bv32, ~bvadd64(a1, 592110bv32))) && !(10bv32 == a19))) || (((!~bvsle32(~bvadd64(505228bv32, ~bvsdiv32(~bvmul32(~bvsdiv32(a1, 5bv32), 5bv32), 5bv32)), 4294967283bv32) && 14bv32 == a4) && 0bv32 == a12) && 1bv32 == a10)) || ((((((a19 == 9bv32 && 14bv32 == a4) && 0bv32 == a12) && ((2bv32 == a10 && (!(8bv32 == a19) || !(0bv32 == a12))) || (2bv32 == a10 && !~bvslt32(38bv32, a1)))) && !(10bv32 == a19)) || ((((!~bvsle32(~bvadd64(505228bv32, ~bvsdiv32(~bvmul32(~bvsdiv32(a1, 5bv32), 5bv32), 5bv32)), 4294967283bv32) && 14bv32 == a4) && 0bv32 == a12) && ((2bv32 == a10 && (!(8bv32 == a19) || !(0bv32 == a12))) || (2bv32 == a10 && !~bvslt32(38bv32, a1)))) && !(10bv32 == a19))) && ~bvslt32(218bv32, ~bvadd64(a1, 592110bv32)))) || (((((!(3bv32 == a10) && !(2bv32 == a10)) && 14bv32 == a4) && 0bv32 == a12) && !(1bv32 == a10)) && !(10bv32 == a19))) || (((((((!~bvslt32(4294967283bv32, a1) && !~bvsle32(~bvadd64(505228bv32, ~bvsdiv32(~bvmul32(~bvsdiv32(a1, 5bv32), 5bv32), 5bv32)), 4294967283bv32)) && !(2bv32 == a10)) && 14bv32 == a4) && 0bv32 == a12) && (!(8bv32 == a19) || !(0bv32 == a12))) && !(10bv32 == a19)) && !~bvslt32(38bv32, a1))) || (((((((!~bvsle32(~bvadd64(505228bv32, ~bvsdiv32(~bvmul32(~bvsdiv32(a1, 5bv32), 5bv32), 5bv32)), 4294967283bv32) && !(2bv32 == a10)) && 14bv32 == a4) && 0bv32 == a12) && (!(8bv32 == a19) || !(0bv32 == a12))) && !(10bv32 == a19)) && !~bvslt32(38bv32, a1)) && !(a19 == 9bv32))) || (((14bv32 == a4 && 0bv32 == a12) && 8bv32 == a19) && 1bv32 == a10)) || ((((a19 == 9bv32 && 14bv32 == a4) && 0bv32 == a12) && ~bvslt32(218bv32, ~bvadd64(a1, 592110bv32))) && !(input == 5bv32)) - InvariantResult [Line: 30]: Loop Invariant Derived loop invariant: ((((((((((((((a19 == 9bv32 && 14bv32 == a4) && 0bv32 == a12) && ((2bv32 == a10 && (!(8bv32 == a19) || !(0bv32 == a12))) || (2bv32 == a10 && !~bvslt32(38bv32, a1)))) && !(10bv32 == a19)) || ((((!~bvsle32(~bvadd64(505228bv32, ~bvsdiv32(~bvmul32(~bvsdiv32(a1, 5bv32), 5bv32), 5bv32)), 4294967283bv32) && 14bv32 == a4) && 0bv32 == a12) && ((2bv32 == a10 && (!(8bv32 == a19) || !(0bv32 == a12))) || (2bv32 == a10 && !~bvslt32(38bv32, a1)))) && !(10bv32 == a19))) && !(8bv32 == a19)) || ((((14bv32 == a4 && 0bv32 == a12) && ~bvslt32(218bv32, ~bvadd64(a1, 592110bv32))) && ~bvsge32(38bv32, a1)) && 0bv32 == a10)) || (((((~bvslt32(218bv32, a1) && 14bv32 == a4) && 0bv32 == a12) && 2bv32 == a10) && ~bvslt32(218bv32, ~bvadd64(a1, 592110bv32))) && !(10bv32 == a19))) || (((!~bvsle32(~bvadd64(505228bv32, ~bvsdiv32(~bvmul32(~bvsdiv32(a1, 5bv32), 5bv32), 5bv32)), 4294967283bv32) && 14bv32 == a4) && 0bv32 == a12) && 1bv32 == a10)) || ((((((a19 == 9bv32 && 14bv32 == a4) && 0bv32 == a12) && ((2bv32 == a10 && (!(8bv32 == a19) || !(0bv32 == a12))) || (2bv32 == a10 && !~bvslt32(38bv32, a1)))) && !(10bv32 == a19)) || ((((!~bvsle32(~bvadd64(505228bv32, ~bvsdiv32(~bvmul32(~bvsdiv32(a1, 5bv32), 5bv32), 5bv32)), 4294967283bv32) && 14bv32 == a4) && 0bv32 == a12) && ((2bv32 == a10 && (!(8bv32 == a19) || !(0bv32 == a12))) || (2bv32 == a10 && !~bvslt32(38bv32, a1)))) && !(10bv32 == a19))) && ~bvslt32(218bv32, ~bvadd64(a1, 592110bv32)))) || (((((!(3bv32 == a10) && !(2bv32 == a10)) && 14bv32 == a4) && 0bv32 == a12) && !(1bv32 == a10)) && !(10bv32 == a19))) || (((((((!~bvslt32(4294967283bv32, a1) && !~bvsle32(~bvadd64(505228bv32, ~bvsdiv32(~bvmul32(~bvsdiv32(a1, 5bv32), 5bv32), 5bv32)), 4294967283bv32)) && !(2bv32 == a10)) && 14bv32 == a4) && 0bv32 == a12) && (!(8bv32 == a19) || !(0bv32 == a12))) && !(10bv32 == a19)) && !~bvslt32(38bv32, a1))) || (((((((!~bvsle32(~bvadd64(505228bv32, ~bvsdiv32(~bvmul32(~bvsdiv32(a1, 5bv32), 5bv32), 5bv32)), 4294967283bv32) && !(2bv32 == a10)) && 14bv32 == a4) && 0bv32 == a12) && (!(8bv32 == a19) || !(0bv32 == a12))) && !(10bv32 == a19)) && !~bvslt32(38bv32, a1)) && !(a19 == 9bv32))) || (((14bv32 == a4 && 0bv32 == a12) && 8bv32 == a19) && 1bv32 == a10)) || ((((a19 == 9bv32 && 14bv32 == a4) && 0bv32 == a12) && ~bvslt32(218bv32, ~bvadd64(a1, 592110bv32))) && !(input == 5bv32)) - InvariantResult [Line: 586]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2021-10-13 07:31:03,901 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_468de366-5740-47de-aedd-6c7cb32d4f52/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...