./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem11_label09.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_d10f8406-8e66-4c8d-9c9c-ef992f01b9b3/bin/utaipan-q2qaUkNPG8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d10f8406-8e66-4c8d-9c9c-ef992f01b9b3/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_d10f8406-8e66-4c8d-9c9c-ef992f01b9b3/bin/utaipan-q2qaUkNPG8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d10f8406-8e66-4c8d-9c9c-ef992f01b9b3/bin/utaipan-q2qaUkNPG8/config/TaipanReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem11_label09.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d10f8406-8e66-4c8d-9c9c-ef992f01b9b3/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_d10f8406-8e66-4c8d-9c9c-ef992f01b9b3/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 3f3500aa26cc1aa6476de6e685de497bdddefade ......................................................................................................................................................................................................................................................................................................................................................... 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_d10f8406-8e66-4c8d-9c9c-ef992f01b9b3/bin/utaipan-q2qaUkNPG8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d10f8406-8e66-4c8d-9c9c-ef992f01b9b3/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_d10f8406-8e66-4c8d-9c9c-ef992f01b9b3/bin/utaipan-q2qaUkNPG8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d10f8406-8e66-4c8d-9c9c-ef992f01b9b3/bin/utaipan-q2qaUkNPG8/config/TaipanReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem11_label09.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d10f8406-8e66-4c8d-9c9c-ef992f01b9b3/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_d10f8406-8e66-4c8d-9c9c-ef992f01b9b3/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 3f3500aa26cc1aa6476de6e685de497bdddefade .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 07:17:26,925 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 07:17:26,928 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 07:17:26,967 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 07:17:26,967 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 07:17:26,969 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 07:17:26,971 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 07:17:26,973 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 07:17:26,975 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 07:17:26,976 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 07:17:26,978 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 07:17:26,979 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 07:17:26,980 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 07:17:26,981 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 07:17:26,983 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 07:17:26,984 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 07:17:26,986 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 07:17:26,987 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 07:17:26,989 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 07:17:26,991 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 07:17:26,994 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 07:17:26,995 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 07:17:26,996 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 07:17:26,997 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 07:17:27,001 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 07:17:27,001 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 07:17:27,001 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 07:17:27,003 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 07:17:27,003 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 07:17:27,004 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 07:17:27,005 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 07:17:27,006 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 07:17:27,006 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 07:17:27,007 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 07:17:27,008 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 07:17:27,008 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 07:17:27,009 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 07:17:27,009 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 07:17:27,010 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 07:17:27,010 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 07:17:27,011 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 07:17:27,012 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d10f8406-8e66-4c8d-9c9c-ef992f01b9b3/bin/utaipan-q2qaUkNPG8/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-13 07:17:27,036 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 07:17:27,036 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 07:17:27,037 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-13 07:17:27,037 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-13 07:17:27,037 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-13 07:17:27,037 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-13 07:17:27,037 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-13 07:17:27,038 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-13 07:17:27,038 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-13 07:17:27,038 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-13 07:17:27,038 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-13 07:17:27,038 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-13 07:17:27,039 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-13 07:17:27,039 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-13 07:17:27,039 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-13 07:17:27,040 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 07:17:27,040 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 07:17:27,040 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 07:17:27,040 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 07:17:27,040 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 07:17:27,040 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-13 07:17:27,041 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 07:17:27,041 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-13 07:17:27,041 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-13 07:17:27,041 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 07:17:27,041 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 07:17:27,042 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 07:17:27,042 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-13 07:17:27,042 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 07:17:27,042 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-13 07:17:27,042 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 07:17:27,043 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 07:17:27,043 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 07:17:27,043 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-13 07:17:27,043 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-13 07:17:27,044 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-13 07:17:27,044 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-13 07:17:27,044 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 07:17:27,044 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-13 07:17:27,044 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_d10f8406-8e66-4c8d-9c9c-ef992f01b9b3/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d10f8406-8e66-4c8d-9c9c-ef992f01b9b3/bin/utaipan-q2qaUkNPG8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3f3500aa26cc1aa6476de6e685de497bdddefade [2021-10-13 07:17:27,277 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 07:17:27,299 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 07:17:27,302 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 07:17:27,303 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 07:17:27,304 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 07:17:27,305 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d10f8406-8e66-4c8d-9c9c-ef992f01b9b3/bin/utaipan-q2qaUkNPG8/../../sv-benchmarks/c/eca-rers2012/Problem11_label09.c [2021-10-13 07:17:27,372 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d10f8406-8e66-4c8d-9c9c-ef992f01b9b3/bin/utaipan-q2qaUkNPG8/data/8704e8a8e/1e1547af8d6b48899c5343b45ba7524c/FLAGd52b4fc2f [2021-10-13 07:17:28,161 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 07:17:28,163 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d10f8406-8e66-4c8d-9c9c-ef992f01b9b3/sv-benchmarks/c/eca-rers2012/Problem11_label09.c [2021-10-13 07:17:28,184 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d10f8406-8e66-4c8d-9c9c-ef992f01b9b3/bin/utaipan-q2qaUkNPG8/data/8704e8a8e/1e1547af8d6b48899c5343b45ba7524c/FLAGd52b4fc2f [2021-10-13 07:17:28,314 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d10f8406-8e66-4c8d-9c9c-ef992f01b9b3/bin/utaipan-q2qaUkNPG8/data/8704e8a8e/1e1547af8d6b48899c5343b45ba7524c [2021-10-13 07:17:28,317 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 07:17:28,321 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 07:17:28,328 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 07:17:28,328 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 07:17:28,332 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 07:17:28,333 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:17:28" (1/1) ... [2021-10-13 07:17:28,335 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f76a7e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:17:28, skipping insertion in model container [2021-10-13 07:17:28,336 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:17:28" (1/1) ... [2021-10-13 07:17:28,345 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 07:17:28,437 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 07:17:28,781 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_d10f8406-8e66-4c8d-9c9c-ef992f01b9b3/sv-benchmarks/c/eca-rers2012/Problem11_label09.c[9501,9514] [2021-10-13 07:17:29,084 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 07:17:29,095 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 07:17:29,162 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_d10f8406-8e66-4c8d-9c9c-ef992f01b9b3/sv-benchmarks/c/eca-rers2012/Problem11_label09.c[9501,9514] [2021-10-13 07:17:29,322 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 07:17:29,339 INFO L208 MainTranslator]: Completed translation [2021-10-13 07:17:29,339 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:17:29 WrapperNode [2021-10-13 07:17:29,340 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 07:17:29,341 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 07:17:29,341 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 07:17:29,341 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 07:17:29,349 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:17:29" (1/1) ... [2021-10-13 07:17:29,383 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:17:29" (1/1) ... [2021-10-13 07:17:29,508 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 07:17:29,509 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 07:17:29,509 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 07:17:29,510 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 07:17:29,519 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:17:29" (1/1) ... [2021-10-13 07:17:29,519 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:17:29" (1/1) ... [2021-10-13 07:17:29,536 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:17:29" (1/1) ... [2021-10-13 07:17:29,536 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:17:29" (1/1) ... [2021-10-13 07:17:29,628 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:17:29" (1/1) ... [2021-10-13 07:17:29,636 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:17:29" (1/1) ... [2021-10-13 07:17:29,655 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:17:29" (1/1) ... [2021-10-13 07:17:29,675 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 07:17:29,676 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 07:17:29,676 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 07:17:29,676 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 07:17:29,677 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:17:29" (1/1) ... [2021-10-13 07:17:29,685 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 07:17:29,724 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d10f8406-8e66-4c8d-9c9c-ef992f01b9b3/bin/utaipan-q2qaUkNPG8/z3 [2021-10-13 07:17:29,746 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d10f8406-8e66-4c8d-9c9c-ef992f01b9b3/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-13 07:17:29,763 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d10f8406-8e66-4c8d-9c9c-ef992f01b9b3/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-13 07:17:29,807 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-13 07:17:29,807 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 07:17:29,809 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 07:17:29,809 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 07:17:55,689 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 07:17:55,690 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-10-13 07:17:55,693 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:17:55 BoogieIcfgContainer [2021-10-13 07:17:55,693 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 07:17:55,695 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-13 07:17:55,695 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-13 07:17:55,698 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-13 07:17:55,698 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 07:17:28" (1/3) ... [2021-10-13 07:17:55,699 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1de5b521 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:17:55, skipping insertion in model container [2021-10-13 07:17:55,699 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:17:29" (2/3) ... [2021-10-13 07:17:55,699 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1de5b521 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:17:55, skipping insertion in model container [2021-10-13 07:17:55,700 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:17:55" (3/3) ... [2021-10-13 07:17:55,701 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem11_label09.c [2021-10-13 07:17:55,707 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-13 07:17:55,707 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-13 07:17:55,761 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-13 07:17:55,769 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 07:17:55,769 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-13 07:17:55,784 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 07:17:55,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-13 07:17:55,789 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:17:55,790 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-10-13 07:17:55,790 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 07:17:55,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:17:55,797 INFO L82 PathProgramCache]: Analyzing trace with hash 1191233130, now seen corresponding path program 1 times [2021-10-13 07:17:55,807 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:17:55,808 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1317783572] [2021-10-13 07:17:55,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:17:55,809 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:17:55,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:17:56,072 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 07:17:56,073 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 07:17:56,073 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1317783572] [2021-10-13 07:17:56,075 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1317783572] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 07:17:56,075 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:17:56,075 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-13 07:17:56,081 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [460784464] [2021-10-13 07:17:56,086 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 07:17:56,087 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 07:17:56,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 07:17:56,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:17:56,108 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 07:17:56,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:17:56,217 INFO L93 Difference]: Finished difference Result 23 states and 29 transitions. [2021-10-13 07:17:56,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 07:17:56,218 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 07:17:56,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:17:56,228 INFO L225 Difference]: With dead ends: 23 [2021-10-13 07:17:56,228 INFO L226 Difference]: Without dead ends: 11 [2021-10-13 07:17:56,231 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.8ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:17:56,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2021-10-13 07:17:56,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 10. [2021-10-13 07:17:56,261 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 07:17:56,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2021-10-13 07:17:56,264 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 10 transitions. Word has length 5 [2021-10-13 07:17:56,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:17:56,265 INFO L470 AbstractCegarLoop]: Abstraction has 10 states and 10 transitions. [2021-10-13 07:17:56,265 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 07:17:56,265 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 10 transitions. [2021-10-13 07:17:56,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-13 07:17:56,266 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:17:56,266 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1] [2021-10-13 07:17:56,266 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-13 07:17:56,267 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 07:17:56,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:17:56,270 INFO L82 PathProgramCache]: Analyzing trace with hash -44047983, now seen corresponding path program 1 times [2021-10-13 07:17:56,271 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:17:56,271 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1405721289] [2021-10-13 07:17:56,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:17:56,271 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:17:56,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:17:57,323 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 07:17:57,323 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 07:17:57,324 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1405721289] [2021-10-13 07:17:57,324 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1405721289] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 07:17:57,324 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1975711631] [2021-10-13 07:17:57,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:17:57,325 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 07:17:57,325 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d10f8406-8e66-4c8d-9c9c-ef992f01b9b3/bin/utaipan-q2qaUkNPG8/z3 [2021-10-13 07:17:57,329 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d10f8406-8e66-4c8d-9c9c-ef992f01b9b3/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 07:17:57,352 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d10f8406-8e66-4c8d-9c9c-ef992f01b9b3/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-10-13 07:17:57,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:17:57,483 INFO L263 TraceCheckSpWp]: Trace formula consists of 213 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-13 07:17:57,492 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:18:18,148 WARN L207 SmtUtils]: Spent 9.13 s on a formula simplification. DAG size of input: 168 DAG size of output: 115 [2021-10-13 07:18:19,036 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 07:18:19,037 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:18:29,130 WARN L207 SmtUtils]: Spent 9.04 s on a formula simplification. DAG size of input: 1473 DAG size of output: 1424 [2021-10-13 07:19:10,140 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: BigInteger out of long range [2021-10-13 07:19:10,140 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1391826982] [2021-10-13 07:19:10,164 INFO L159 IcfgInterpreter]: Started Sifa with 7 locations of interest [2021-10-13 07:19:10,164 INFO L166 IcfgInterpreter]: Building call graph [2021-10-13 07:19:10,170 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-10-13 07:19:10,176 INFO L176 IcfgInterpreter]: Starting interpretation [2021-10-13 07:19:10,176 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-10-13 07:19:10,213 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:19:10,215 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-13 07:19:10,216 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:19:10,217 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-10-13 07:19:10,218 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-13 07:19:10,219 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:19:10,226 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-10-13 07:19:10,229 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 158 [2021-10-13 07:19:10,266 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 07:19:10,267 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 07:19:10,268 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 07:19:10,276 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 07:19:10,277 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:19:10,278 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-10-13 07:19:10,279 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:19:10,280 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-10-13 07:19:10,280 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-13 07:19:10,282 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:19:10,303 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:19:10,306 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:19:10,308 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 158 [2021-10-13 07:19:10,308 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-10-13 07:19:10,309 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:155, output treesize:158 [2021-10-13 07:19:10,352 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d10f8406-8e66-4c8d-9c9c-ef992f01b9b3/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-10-13 07:19:10,533 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d10f8406-8e66-4c8d-9c9c-ef992f01b9b3/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2021-10-13 07:19:10,533 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 07:19:10,537 INFO L168 Benchmark]: Toolchain (without parser) took 102216.06 ms. Allocated memory was 104.9 MB in the beginning and 2.8 GB in the end (delta: 2.7 GB). Free memory was 68.6 MB in the beginning and 1.2 GB in the end (delta: -1.1 GB). Peak memory consumption was 1.6 GB. Max. memory is 16.1 GB. [2021-10-13 07:19:10,538 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 104.9 MB. Free memory is still 60.6 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 07:19:10,539 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1012.26 ms. Allocated memory was 104.9 MB in the beginning and 151.0 MB in the end (delta: 46.1 MB). Free memory was 68.3 MB in the beginning and 91.2 MB in the end (delta: -22.9 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. [2021-10-13 07:19:10,539 INFO L168 Benchmark]: Boogie Procedure Inliner took 167.24 ms. Allocated memory is still 151.0 MB. Free memory was 91.2 MB in the beginning and 74.4 MB in the end (delta: 16.8 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2021-10-13 07:19:10,540 INFO L168 Benchmark]: Boogie Preprocessor took 166.30 ms. Allocated memory is still 151.0 MB. Free memory was 74.4 MB in the beginning and 110.8 MB in the end (delta: -36.4 MB). Peak memory consumption was 21.2 MB. Max. memory is 16.1 GB. [2021-10-13 07:19:10,541 INFO L168 Benchmark]: RCFGBuilder took 26017.02 ms. Allocated memory was 151.0 MB in the beginning and 1.8 GB in the end (delta: 1.6 GB). Free memory was 110.8 MB in the beginning and 1.5 GB in the end (delta: -1.4 GB). Peak memory consumption was 393.7 MB. Max. memory is 16.1 GB. [2021-10-13 07:19:10,542 INFO L168 Benchmark]: TraceAbstraction took 74841.36 ms. Allocated memory was 1.8 GB in the beginning and 2.8 GB in the end (delta: 1.1 GB). Free memory was 1.5 GB in the beginning and 1.2 GB in the end (delta: 372.8 MB). Peak memory consumption was 1.4 GB. Max. memory is 16.1 GB. [2021-10-13 07:19:10,546 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 104.9 MB. Free memory is still 60.6 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 1012.26 ms. Allocated memory was 104.9 MB in the beginning and 151.0 MB in the end (delta: 46.1 MB). Free memory was 68.3 MB in the beginning and 91.2 MB in the end (delta: -22.9 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 167.24 ms. Allocated memory is still 151.0 MB. Free memory was 91.2 MB in the beginning and 74.4 MB in the end (delta: 16.8 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 166.30 ms. Allocated memory is still 151.0 MB. Free memory was 74.4 MB in the beginning and 110.8 MB in the end (delta: -36.4 MB). Peak memory consumption was 21.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 26017.02 ms. Allocated memory was 151.0 MB in the beginning and 1.8 GB in the end (delta: 1.6 GB). Free memory was 110.8 MB in the beginning and 1.5 GB in the end (delta: -1.4 GB). Peak memory consumption was 393.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 74841.36 ms. Allocated memory was 1.8 GB in the beginning and 2.8 GB in the end (delta: 1.1 GB). Free memory was 1.5 GB in the beginning and 1.2 GB in the end (delta: 372.8 MB). Peak memory consumption was 1.4 GB. 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 07:19:10,634 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d10f8406-8e66-4c8d-9c9c-ef992f01b9b3/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.1-dev-4e77c04 [2021-10-13 07:19:13,274 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 07:19:13,277 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 07:19:13,314 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 07:19:13,321 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 07:19:13,323 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 07:19:13,327 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 07:19:13,333 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 07:19:13,337 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 07:19:13,339 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 07:19:13,341 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 07:19:13,345 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 07:19:13,346 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 07:19:13,354 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 07:19:13,356 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 07:19:13,360 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 07:19:13,361 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 07:19:13,364 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 07:19:13,370 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 07:19:13,381 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 07:19:13,383 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 07:19:13,385 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 07:19:13,386 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 07:19:13,388 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 07:19:13,392 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 07:19:13,392 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 07:19:13,393 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 07:19:13,394 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 07:19:13,395 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 07:19:13,396 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 07:19:13,397 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 07:19:13,398 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 07:19:13,399 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 07:19:13,400 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 07:19:13,402 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 07:19:13,402 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 07:19:13,403 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 07:19:13,404 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 07:19:13,404 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 07:19:13,405 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 07:19:13,406 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 07:19:13,408 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d10f8406-8e66-4c8d-9c9c-ef992f01b9b3/bin/utaipan-q2qaUkNPG8/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-10-13 07:19:13,471 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 07:19:13,474 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 07:19:13,475 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-13 07:19:13,476 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-13 07:19:13,476 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-13 07:19:13,476 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-13 07:19:13,476 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-13 07:19:13,477 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-13 07:19:13,477 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-13 07:19:13,479 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 07:19:13,480 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 07:19:13,480 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 07:19:13,481 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 07:19:13,481 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-13 07:19:13,481 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 07:19:13,481 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-13 07:19:13,482 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-13 07:19:13,482 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-13 07:19:13,482 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-13 07:19:13,483 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 07:19:13,483 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 07:19:13,483 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 07:19:13,483 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-13 07:19:13,484 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 07:19:13,484 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-13 07:19:13,484 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-13 07:19:13,485 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 07:19:13,485 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 07:19:13,485 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 07:19:13,485 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-13 07:19:13,486 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-13 07:19:13,486 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-13 07:19:13,486 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-13 07:19:13,486 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 07:19:13,487 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-13 07:19:13,487 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_d10f8406-8e66-4c8d-9c9c-ef992f01b9b3/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d10f8406-8e66-4c8d-9c9c-ef992f01b9b3/bin/utaipan-q2qaUkNPG8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3f3500aa26cc1aa6476de6e685de497bdddefade [2021-10-13 07:19:13,948 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 07:19:13,977 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 07:19:13,980 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 07:19:13,981 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 07:19:13,985 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 07:19:13,986 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d10f8406-8e66-4c8d-9c9c-ef992f01b9b3/bin/utaipan-q2qaUkNPG8/../../sv-benchmarks/c/eca-rers2012/Problem11_label09.c [2021-10-13 07:19:14,068 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d10f8406-8e66-4c8d-9c9c-ef992f01b9b3/bin/utaipan-q2qaUkNPG8/data/70ef66f74/7008cdba78464e67addc0440393047f6/FLAGf1bd3eea3 [2021-10-13 07:19:14,809 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 07:19:14,809 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d10f8406-8e66-4c8d-9c9c-ef992f01b9b3/sv-benchmarks/c/eca-rers2012/Problem11_label09.c [2021-10-13 07:19:14,841 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d10f8406-8e66-4c8d-9c9c-ef992f01b9b3/bin/utaipan-q2qaUkNPG8/data/70ef66f74/7008cdba78464e67addc0440393047f6/FLAGf1bd3eea3 [2021-10-13 07:19:14,943 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d10f8406-8e66-4c8d-9c9c-ef992f01b9b3/bin/utaipan-q2qaUkNPG8/data/70ef66f74/7008cdba78464e67addc0440393047f6 [2021-10-13 07:19:14,945 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 07:19:14,947 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 07:19:14,948 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 07:19:14,948 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 07:19:14,956 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 07:19:14,958 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:19:14" (1/1) ... [2021-10-13 07:19:14,960 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@59b885a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:19:14, skipping insertion in model container [2021-10-13 07:19:14,960 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:19:14" (1/1) ... [2021-10-13 07:19:14,969 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 07:19:15,041 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 07:19:15,280 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_d10f8406-8e66-4c8d-9c9c-ef992f01b9b3/sv-benchmarks/c/eca-rers2012/Problem11_label09.c[9501,9514] [2021-10-13 07:19:15,741 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 07:19:15,754 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 07:19:15,819 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_d10f8406-8e66-4c8d-9c9c-ef992f01b9b3/sv-benchmarks/c/eca-rers2012/Problem11_label09.c[9501,9514] [2021-10-13 07:19:15,971 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 07:19:15,990 INFO L208 MainTranslator]: Completed translation [2021-10-13 07:19:15,991 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:19:15 WrapperNode [2021-10-13 07:19:15,991 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 07:19:15,993 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 07:19:15,993 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 07:19:15,993 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 07:19:16,002 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:19:15" (1/1) ... [2021-10-13 07:19:16,044 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:19:15" (1/1) ... [2021-10-13 07:19:16,203 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 07:19:16,204 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 07:19:16,204 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 07:19:16,204 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 07:19:16,214 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:19:15" (1/1) ... [2021-10-13 07:19:16,215 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:19:15" (1/1) ... [2021-10-13 07:19:16,233 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:19:15" (1/1) ... [2021-10-13 07:19:16,233 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:19:15" (1/1) ... [2021-10-13 07:19:16,296 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:19:15" (1/1) ... [2021-10-13 07:19:16,316 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:19:15" (1/1) ... [2021-10-13 07:19:16,340 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:19:15" (1/1) ... [2021-10-13 07:19:16,357 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 07:19:16,360 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 07:19:16,362 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 07:19:16,362 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 07:19:16,363 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:19:15" (1/1) ... [2021-10-13 07:19:16,370 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 07:19:16,383 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d10f8406-8e66-4c8d-9c9c-ef992f01b9b3/bin/utaipan-q2qaUkNPG8/z3 [2021-10-13 07:19:16,399 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d10f8406-8e66-4c8d-9c9c-ef992f01b9b3/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-13 07:19:16,412 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d10f8406-8e66-4c8d-9c9c-ef992f01b9b3/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-13 07:19:16,458 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-13 07:19:16,459 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 07:19:16,459 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 07:19:16,459 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 07:19:25,053 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 07:19:25,054 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-10-13 07:19:25,057 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:19:25 BoogieIcfgContainer [2021-10-13 07:19:25,057 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 07:19:25,060 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-13 07:19:25,060 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-13 07:19:25,064 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-13 07:19:25,064 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 07:19:14" (1/3) ... [2021-10-13 07:19:25,065 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@755febe4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:19:25, skipping insertion in model container [2021-10-13 07:19:25,065 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:19:15" (2/3) ... [2021-10-13 07:19:25,066 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@755febe4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:19:25, skipping insertion in model container [2021-10-13 07:19:25,066 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:19:25" (3/3) ... [2021-10-13 07:19:25,068 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem11_label09.c [2021-10-13 07:19:25,074 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-13 07:19:25,074 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-13 07:19:25,135 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-13 07:19:25,141 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 07:19:25,142 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-13 07:19:25,171 INFO L276 IsEmpty]: Start isEmpty. Operand has 283 states, 281 states have (on average 1.7153024911032029) internal successors, (482), 282 states have internal predecessors, (482), 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 07:19:25,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-10-13 07:19:25,182 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:19:25,183 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:19:25,184 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 07:19:25,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:19:25,191 INFO L82 PathProgramCache]: Analyzing trace with hash -215114758, now seen corresponding path program 1 times [2021-10-13 07:19:25,209 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:19:25,210 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2046416418] [2021-10-13 07:19:25,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:19:25,211 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:19:25,212 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d10f8406-8e66-4c8d-9c9c-ef992f01b9b3/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:19:25,216 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d10f8406-8e66-4c8d-9c9c-ef992f01b9b3/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:19:25,219 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d10f8406-8e66-4c8d-9c9c-ef992f01b9b3/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-13 07:19:25,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:19:25,311 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 07:19:25,319 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:19:25,787 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 07:19:25,787 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:19:26,164 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 07:19:26,165 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:19:26,165 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2046416418] [2021-10-13 07:19:26,166 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2046416418] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 07:19:26,166 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:19:26,166 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-10-13 07:19:26,168 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [264048089] [2021-10-13 07:19:26,174 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 07:19:26,175 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:19:26,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 07:19:26,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 07:19:26,193 INFO L87 Difference]: Start difference. First operand has 283 states, 281 states have (on average 1.7153024911032029) internal successors, (482), 282 states have internal predecessors, (482), 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 32.75) internal successors, (131), 3 states have internal predecessors, (131), 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 07:19:52,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:19:52,813 INFO L93 Difference]: Finished difference Result 954 states and 1721 transitions. [2021-10-13 07:19:52,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 07:19:52,821 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.75) internal successors, (131), 3 states have internal predecessors, (131), 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 66 [2021-10-13 07:19:52,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:19:52,843 INFO L225 Difference]: With dead ends: 954 [2021-10-13 07:19:52,844 INFO L226 Difference]: Without dead ends: 603 [2021-10-13 07:19:52,849 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 16.7ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 07:19:52,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 603 states. [2021-10-13 07:19:52,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 603 to 603. [2021-10-13 07:19:52,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 603 states, 602 states have (on average 1.420265780730897) internal successors, (855), 602 states have internal predecessors, (855), 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 07:19:52,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 603 states to 603 states and 855 transitions. [2021-10-13 07:19:52,939 INFO L78 Accepts]: Start accepts. Automaton has 603 states and 855 transitions. Word has length 66 [2021-10-13 07:19:52,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:19:52,940 INFO L470 AbstractCegarLoop]: Abstraction has 603 states and 855 transitions. [2021-10-13 07:19:52,941 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.75) internal successors, (131), 3 states have internal predecessors, (131), 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 07:19:52,941 INFO L276 IsEmpty]: Start isEmpty. Operand 603 states and 855 transitions. [2021-10-13 07:19:52,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2021-10-13 07:19:52,950 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:19:52,951 INFO L512 BasicCegarLoop]: trace histogram [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] [2021-10-13 07:19:52,972 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d10f8406-8e66-4c8d-9c9c-ef992f01b9b3/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-13 07:19:53,165 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d10f8406-8e66-4c8d-9c9c-ef992f01b9b3/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 07:19:53,165 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 07:19:53,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:19:53,166 INFO L82 PathProgramCache]: Analyzing trace with hash 1527046270, now seen corresponding path program 1 times [2021-10-13 07:19:53,168 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:19:53,169 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1947469780] [2021-10-13 07:19:53,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:19:53,170 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:19:53,170 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d10f8406-8e66-4c8d-9c9c-ef992f01b9b3/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:19:53,171 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d10f8406-8e66-4c8d-9c9c-ef992f01b9b3/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:19:53,192 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d10f8406-8e66-4c8d-9c9c-ef992f01b9b3/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-13 07:19:53,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:19:53,379 INFO L263 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 07:19:53,384 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:19:53,950 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 63 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:19:53,950 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:19:54,534 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 63 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:19:54,534 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:19:54,535 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1947469780] [2021-10-13 07:19:54,535 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1947469780] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 07:19:54,535 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:19:54,535 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-10-13 07:19:54,536 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1253628745] [2021-10-13 07:19:54,538 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 07:19:54,538 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:19:54,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 07:19:54,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 07:19:54,540 INFO L87 Difference]: Start difference. First operand 603 states and 855 transitions. Second operand has 4 states, 4 states have (on average 54.75) internal successors, (219), 3 states have internal predecessors, (219), 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 07:20:05,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:20:05,734 INFO L93 Difference]: Finished difference Result 1946 states and 2736 transitions. [2021-10-13 07:20:05,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 07:20:05,742 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 54.75) internal successors, (219), 3 states have internal predecessors, (219), 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 142 [2021-10-13 07:20:05,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:20:05,754 INFO L225 Difference]: With dead ends: 1946 [2021-10-13 07:20:05,755 INFO L226 Difference]: Without dead ends: 1345 [2021-10-13 07:20:05,758 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 282 GetRequests, 280 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 12.4ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 07:20:05,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1345 states. [2021-10-13 07:20:05,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1345 to 1158. [2021-10-13 07:20:05,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1158 states, 1157 states have (on average 1.3059636992221262) internal successors, (1511), 1157 states have internal predecessors, (1511), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:20:05,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1158 states to 1158 states and 1511 transitions. [2021-10-13 07:20:05,827 INFO L78 Accepts]: Start accepts. Automaton has 1158 states and 1511 transitions. Word has length 142 [2021-10-13 07:20:05,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:20:05,828 INFO L470 AbstractCegarLoop]: Abstraction has 1158 states and 1511 transitions. [2021-10-13 07:20:05,828 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 54.75) internal successors, (219), 3 states have internal predecessors, (219), 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 07:20:05,829 INFO L276 IsEmpty]: Start isEmpty. Operand 1158 states and 1511 transitions. [2021-10-13 07:20:05,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2021-10-13 07:20:05,837 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:20:05,838 INFO L512 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:20:05,854 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d10f8406-8e66-4c8d-9c9c-ef992f01b9b3/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-13 07:20:06,051 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d10f8406-8e66-4c8d-9c9c-ef992f01b9b3/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 07:20:06,051 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 07:20:06,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:20:06,053 INFO L82 PathProgramCache]: Analyzing trace with hash 1612095663, now seen corresponding path program 1 times [2021-10-13 07:20:06,055 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:20:06,055 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [290535557] [2021-10-13 07:20:06,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:20:06,056 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:20:06,056 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d10f8406-8e66-4c8d-9c9c-ef992f01b9b3/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:20:06,057 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d10f8406-8e66-4c8d-9c9c-ef992f01b9b3/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:20:06,091 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d10f8406-8e66-4c8d-9c9c-ef992f01b9b3/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-13 07:20:06,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:20:06,360 INFO L263 TraceCheckSpWp]: Trace formula consists of 245 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 07:20:06,365 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:20:06,963 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 63 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:20:06,964 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:20:07,558 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 63 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:20:07,559 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:20:07,559 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [290535557] [2021-10-13 07:20:07,559 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [290535557] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 07:20:07,560 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:20:07,560 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-13 07:20:07,560 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [53174925] [2021-10-13 07:20:07,561 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 07:20:07,561 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:20:07,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 07:20:07,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 07:20:07,563 INFO L87 Difference]: Start difference. First operand 1158 states and 1511 transitions. Second operand has 4 states, 4 states have (on average 64.75) internal successors, (259), 4 states have internal predecessors, (259), 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 07:20:19,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:20:19,257 INFO L93 Difference]: Finished difference Result 3994 states and 5302 transitions. [2021-10-13 07:20:19,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 07:20:19,258 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 64.75) internal successors, (259), 4 states have internal predecessors, (259), 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 193 [2021-10-13 07:20:19,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:20:19,278 INFO L225 Difference]: With dead ends: 3994 [2021-10-13 07:20:19,279 INFO L226 Difference]: Without dead ends: 2838 [2021-10-13 07:20:19,281 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 384 GetRequests, 382 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 11.1ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 07:20:19,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2838 states. [2021-10-13 07:20:19,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2838 to 2079. [2021-10-13 07:20:19,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2079 states, 2078 states have (on average 1.2502406159769008) internal successors, (2598), 2078 states have internal predecessors, (2598), 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 07:20:19,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2079 states to 2079 states and 2598 transitions. [2021-10-13 07:20:19,355 INFO L78 Accepts]: Start accepts. Automaton has 2079 states and 2598 transitions. Word has length 193 [2021-10-13 07:20:19,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:20:19,358 INFO L470 AbstractCegarLoop]: Abstraction has 2079 states and 2598 transitions. [2021-10-13 07:20:19,359 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 64.75) internal successors, (259), 4 states have internal predecessors, (259), 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 07:20:19,360 INFO L276 IsEmpty]: Start isEmpty. Operand 2079 states and 2598 transitions. [2021-10-13 07:20:19,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2021-10-13 07:20:19,366 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:20:19,367 INFO L512 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:20:19,388 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d10f8406-8e66-4c8d-9c9c-ef992f01b9b3/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-10-13 07:20:19,583 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d10f8406-8e66-4c8d-9c9c-ef992f01b9b3/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 07:20:19,583 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 07:20:19,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:20:19,584 INFO L82 PathProgramCache]: Analyzing trace with hash -752183914, now seen corresponding path program 1 times [2021-10-13 07:20:19,586 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:20:19,586 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [738514879] [2021-10-13 07:20:19,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:20:19,587 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:20:19,587 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d10f8406-8e66-4c8d-9c9c-ef992f01b9b3/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:20:19,591 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d10f8406-8e66-4c8d-9c9c-ef992f01b9b3/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:20:19,596 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d10f8406-8e66-4c8d-9c9c-ef992f01b9b3/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-10-13 07:20:19,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:20:19,977 INFO L263 TraceCheckSpWp]: Trace formula consists of 274 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 07:20:19,982 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:20:20,765 INFO L134 CoverageAnalysis]: Checked inductivity of 194 backedges. 130 proven. 0 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2021-10-13 07:20:20,765 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:20:21,614 INFO L134 CoverageAnalysis]: Checked inductivity of 194 backedges. 130 proven. 0 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2021-10-13 07:20:21,614 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:20:21,615 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [738514879] [2021-10-13 07:20:21,615 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [738514879] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 07:20:21,615 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:20:21,615 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-10-13 07:20:21,616 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1173494444] [2021-10-13 07:20:21,616 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 07:20:21,617 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:20:21,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 07:20:21,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 07:20:21,618 INFO L87 Difference]: Start difference. First operand 2079 states and 2598 transitions. Second operand has 4 states, 4 states have (on average 54.0) internal successors, (216), 3 states have internal predecessors, (216), 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 07:20:35,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:20:35,465 INFO L93 Difference]: Finished difference Result 6749 states and 8601 transitions. [2021-10-13 07:20:35,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 07:20:35,472 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 54.0) internal successors, (216), 3 states have internal predecessors, (216), 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 210 [2021-10-13 07:20:35,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:20:35,502 INFO L225 Difference]: With dead ends: 6749 [2021-10-13 07:20:35,502 INFO L226 Difference]: Without dead ends: 4672 [2021-10-13 07:20:35,506 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 418 GetRequests, 416 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 28.5ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 07:20:35,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4672 states. [2021-10-13 07:20:35,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4672 to 4471. [2021-10-13 07:20:35,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4471 states, 4470 states have (on average 1.2279642058165547) internal successors, (5489), 4470 states have internal predecessors, (5489), 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 07:20:35,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4471 states to 4471 states and 5489 transitions. [2021-10-13 07:20:35,641 INFO L78 Accepts]: Start accepts. Automaton has 4471 states and 5489 transitions. Word has length 210 [2021-10-13 07:20:35,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:20:35,641 INFO L470 AbstractCegarLoop]: Abstraction has 4471 states and 5489 transitions. [2021-10-13 07:20:35,642 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 54.0) internal successors, (216), 3 states have internal predecessors, (216), 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 07:20:35,642 INFO L276 IsEmpty]: Start isEmpty. Operand 4471 states and 5489 transitions. [2021-10-13 07:20:35,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2021-10-13 07:20:35,670 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:20:35,671 INFO L512 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:20:35,690 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d10f8406-8e66-4c8d-9c9c-ef992f01b9b3/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-10-13 07:20:35,884 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d10f8406-8e66-4c8d-9c9c-ef992f01b9b3/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 07:20:35,885 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 07:20:35,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:20:35,887 INFO L82 PathProgramCache]: Analyzing trace with hash 989310298, now seen corresponding path program 1 times [2021-10-13 07:20:35,890 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:20:35,891 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [448887755] [2021-10-13 07:20:35,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:20:35,892 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:20:35,892 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d10f8406-8e66-4c8d-9c9c-ef992f01b9b3/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:20:35,893 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d10f8406-8e66-4c8d-9c9c-ef992f01b9b3/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:20:35,936 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d10f8406-8e66-4c8d-9c9c-ef992f01b9b3/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-10-13 07:20:36,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:20:36,393 INFO L263 TraceCheckSpWp]: Trace formula consists of 317 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 07:20:36,397 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:20:37,236 INFO L134 CoverageAnalysis]: Checked inductivity of 202 backedges. 202 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:20:37,236 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:20:38,559 INFO L134 CoverageAnalysis]: Checked inductivity of 202 backedges. 202 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:20:38,560 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:20:38,560 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [448887755] [2021-10-13 07:20:38,560 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [448887755] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 07:20:38,560 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:20:38,560 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-13 07:20:38,561 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [287985572] [2021-10-13 07:20:38,562 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 07:20:38,562 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:20:38,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 07:20:38,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 07:20:38,563 INFO L87 Difference]: Start difference. First operand 4471 states and 5489 transitions. Second operand has 4 states, 4 states have (on average 82.75) internal successors, (331), 4 states have internal predecessors, (331), 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 07:20:50,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:20:50,740 INFO L93 Difference]: Finished difference Result 11350 states and 14135 transitions. [2021-10-13 07:20:50,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 07:20:50,752 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 82.75) internal successors, (331), 4 states have internal predecessors, (331), 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 254 [2021-10-13 07:20:50,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:20:50,796 INFO L225 Difference]: With dead ends: 11350 [2021-10-13 07:20:50,796 INFO L226 Difference]: Without dead ends: 7065 [2021-10-13 07:20:50,802 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 506 GetRequests, 504 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 14.1ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 07:20:50,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7065 states. [2021-10-13 07:20:50,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7065 to 7046. [2021-10-13 07:20:50,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7046 states, 7045 states have (on average 1.2090844570617458) internal successors, (8518), 7045 states have internal predecessors, (8518), 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 07:20:50,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7046 states to 7046 states and 8518 transitions. [2021-10-13 07:20:50,995 INFO L78 Accepts]: Start accepts. Automaton has 7046 states and 8518 transitions. Word has length 254 [2021-10-13 07:20:50,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:20:50,996 INFO L470 AbstractCegarLoop]: Abstraction has 7046 states and 8518 transitions. [2021-10-13 07:20:50,997 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 82.75) internal successors, (331), 4 states have internal predecessors, (331), 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 07:20:50,997 INFO L276 IsEmpty]: Start isEmpty. Operand 7046 states and 8518 transitions. [2021-10-13 07:20:51,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 346 [2021-10-13 07:20:51,012 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:20:51,013 INFO L512 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2021-10-13 07:20:51,029 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d10f8406-8e66-4c8d-9c9c-ef992f01b9b3/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-10-13 07:20:51,227 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d10f8406-8e66-4c8d-9c9c-ef992f01b9b3/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 07:20:51,227 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 07:20:51,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:20:51,228 INFO L82 PathProgramCache]: Analyzing trace with hash 1173822211, now seen corresponding path program 1 times [2021-10-13 07:20:51,231 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:20:51,232 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [532758083] [2021-10-13 07:20:51,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:20:51,232 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:20:51,232 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d10f8406-8e66-4c8d-9c9c-ef992f01b9b3/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:20:51,233 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d10f8406-8e66-4c8d-9c9c-ef992f01b9b3/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:20:51,236 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d10f8406-8e66-4c8d-9c9c-ef992f01b9b3/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-10-13 07:20:51,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:20:51,913 INFO L263 TraceCheckSpWp]: Trace formula consists of 418 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-13 07:20:51,919 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:20:54,868 INFO L134 CoverageAnalysis]: Checked inductivity of 433 backedges. 280 proven. 89 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2021-10-13 07:20:54,868 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:21:00,704 INFO L134 CoverageAnalysis]: Checked inductivity of 433 backedges. 369 proven. 0 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2021-10-13 07:21:00,705 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:21:00,705 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [532758083] [2021-10-13 07:21:00,705 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [532758083] provided 1 perfect and 1 imperfect interpolant sequences [2021-10-13 07:21:00,705 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-13 07:21:00,706 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2021-10-13 07:21:00,706 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [890673920] [2021-10-13 07:21:00,707 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 07:21:00,707 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:21:00,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 07:21:00,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-13 07:21:00,709 INFO L87 Difference]: Start difference. First operand 7046 states and 8518 transitions. Second operand has 3 states, 3 states have (on average 94.0) internal successors, (282), 3 states have internal predecessors, (282), 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 07:21:19,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:21:19,017 INFO L93 Difference]: Finished difference Result 13900 states and 17016 transitions. [2021-10-13 07:21:19,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 07:21:19,023 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 94.0) internal successors, (282), 3 states have internal predecessors, (282), 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 345 [2021-10-13 07:21:19,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:21:19,064 INFO L225 Difference]: With dead ends: 13900 [2021-10-13 07:21:19,064 INFO L226 Difference]: Without dead ends: 8149 [2021-10-13 07:21:19,070 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 688 GetRequests, 685 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 76.5ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-13 07:21:19,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8149 states. [2021-10-13 07:21:19,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8149 to 7229. [2021-10-13 07:21:19,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7229 states, 7228 states have (on average 1.2144438295517432) internal successors, (8778), 7228 states have internal predecessors, (8778), 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 07:21:19,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7229 states to 7229 states and 8778 transitions. [2021-10-13 07:21:19,285 INFO L78 Accepts]: Start accepts. Automaton has 7229 states and 8778 transitions. Word has length 345 [2021-10-13 07:21:19,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:21:19,287 INFO L470 AbstractCegarLoop]: Abstraction has 7229 states and 8778 transitions. [2021-10-13 07:21:19,287 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 94.0) internal successors, (282), 3 states have internal predecessors, (282), 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 07:21:19,288 INFO L276 IsEmpty]: Start isEmpty. Operand 7229 states and 8778 transitions. [2021-10-13 07:21:19,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 349 [2021-10-13 07:21:19,301 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:21:19,302 INFO L512 BasicCegarLoop]: trace histogram [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, 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] [2021-10-13 07:21:19,325 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d10f8406-8e66-4c8d-9c9c-ef992f01b9b3/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-10-13 07:21:19,517 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d10f8406-8e66-4c8d-9c9c-ef992f01b9b3/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 07:21:19,517 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 07:21:19,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:21:19,518 INFO L82 PathProgramCache]: Analyzing trace with hash -116356383, now seen corresponding path program 1 times [2021-10-13 07:21:19,520 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:21:19,520 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1470749075] [2021-10-13 07:21:19,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:21:19,521 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:21:19,521 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d10f8406-8e66-4c8d-9c9c-ef992f01b9b3/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:21:19,522 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d10f8406-8e66-4c8d-9c9c-ef992f01b9b3/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:21:19,523 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d10f8406-8e66-4c8d-9c9c-ef992f01b9b3/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-10-13 07:21:20,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:21:20,559 INFO L263 TraceCheckSpWp]: Trace formula consists of 411 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 07:21:20,564 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:21:21,452 INFO L134 CoverageAnalysis]: Checked inductivity of 251 backedges. 127 proven. 0 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2021-10-13 07:21:21,453 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:21:22,091 INFO L134 CoverageAnalysis]: Checked inductivity of 251 backedges. 127 proven. 0 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2021-10-13 07:21:22,091 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:21:22,091 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1470749075] [2021-10-13 07:21:22,091 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1470749075] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 07:21:22,091 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:21:22,092 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-13 07:21:22,092 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1774598712] [2021-10-13 07:21:22,092 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 07:21:22,092 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:21:22,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 07:21:22,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:21:22,093 INFO L87 Difference]: Start difference. First operand 7229 states and 8778 transitions. Second operand has 3 states, 3 states have (on average 75.0) internal successors, (225), 3 states have internal predecessors, (225), 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 07:21:27,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:21:27,298 INFO L93 Difference]: Finished difference Result 12790 states and 15641 transitions. [2021-10-13 07:21:27,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 07:21:27,299 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 75.0) internal successors, (225), 3 states have internal predecessors, (225), 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 348 [2021-10-13 07:21:27,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:21:27,333 INFO L225 Difference]: With dead ends: 12790 [2021-10-13 07:21:27,333 INFO L226 Difference]: Without dead ends: 7224 [2021-10-13 07:21:27,341 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 694 GetRequests, 693 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.3ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:21:27,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7224 states. [2021-10-13 07:21:27,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7224 to 7224. [2021-10-13 07:21:27,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7224 states, 7223 states have (on average 1.2139000415339887) internal successors, (8768), 7223 states have internal predecessors, (8768), 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 07:21:27,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7224 states to 7224 states and 8768 transitions. [2021-10-13 07:21:27,577 INFO L78 Accepts]: Start accepts. Automaton has 7224 states and 8768 transitions. Word has length 348 [2021-10-13 07:21:27,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:21:27,578 INFO L470 AbstractCegarLoop]: Abstraction has 7224 states and 8768 transitions. [2021-10-13 07:21:27,578 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 75.0) internal successors, (225), 3 states have internal predecessors, (225), 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 07:21:27,578 INFO L276 IsEmpty]: Start isEmpty. Operand 7224 states and 8768 transitions. [2021-10-13 07:21:27,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 350 [2021-10-13 07:21:27,608 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:21:27,609 INFO L512 BasicCegarLoop]: trace histogram [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, 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] [2021-10-13 07:21:27,657 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d10f8406-8e66-4c8d-9c9c-ef992f01b9b3/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-10-13 07:21:27,809 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d10f8406-8e66-4c8d-9c9c-ef992f01b9b3/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 07:21:27,810 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 07:21:27,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:21:27,811 INFO L82 PathProgramCache]: Analyzing trace with hash -1999986080, now seen corresponding path program 1 times [2021-10-13 07:21:27,814 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:21:27,814 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1831861441] [2021-10-13 07:21:27,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:21:27,814 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:21:27,815 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d10f8406-8e66-4c8d-9c9c-ef992f01b9b3/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:21:27,817 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d10f8406-8e66-4c8d-9c9c-ef992f01b9b3/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:21:27,819 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d10f8406-8e66-4c8d-9c9c-ef992f01b9b3/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-10-13 07:21:28,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:21:28,962 INFO L263 TraceCheckSpWp]: Trace formula consists of 411 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-13 07:21:28,968 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:21:34,432 INFO L134 CoverageAnalysis]: Checked inductivity of 266 backedges. 100 proven. 166 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:21:34,432 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:21:39,834 INFO L134 CoverageAnalysis]: Checked inductivity of 266 backedges. 239 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:21:39,835 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:21:39,835 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1831861441] [2021-10-13 07:21:39,835 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1831861441] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-13 07:21:39,835 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [146335867] [2021-10-13 07:21:39,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:21:39,836 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-13 07:21:39,836 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d10f8406-8e66-4c8d-9c9c-ef992f01b9b3/bin/utaipan-q2qaUkNPG8/cvc4 [2021-10-13 07:21:39,840 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d10f8406-8e66-4c8d-9c9c-ef992f01b9b3/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-13 07:21:39,840 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d10f8406-8e66-4c8d-9c9c-ef992f01b9b3/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (10)] Waiting until timeout for monitored process [2021-10-13 07:21:41,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:21:41,997 INFO L263 TraceCheckSpWp]: Trace formula consists of 411 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 07:21:41,999 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:21:42,835 INFO L134 CoverageAnalysis]: Checked inductivity of 266 backedges. 127 proven. 0 refuted. 0 times theorem prover too weak. 139 trivial. 0 not checked. [2021-10-13 07:21:42,835 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:21:43,579 INFO L134 CoverageAnalysis]: Checked inductivity of 266 backedges. 127 proven. 0 refuted. 0 times theorem prover too weak. 139 trivial. 0 not checked. [2021-10-13 07:21:43,580 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [146335867] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 07:21:43,580 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 2 imperfect interpolant sequences. [2021-10-13 07:21:43,581 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [4, 4] total 9 [2021-10-13 07:21:43,581 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [380418419] [2021-10-13 07:21:43,582 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 07:21:43,582 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:21:43,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 07:21:43,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2021-10-13 07:21:43,583 INFO L87 Difference]: Start difference. First operand 7224 states and 8768 transitions. Second operand has 3 states, 3 states have (on average 70.33333333333333) internal successors, (211), 3 states have internal predecessors, (211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:21:53,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:21:53,876 INFO L93 Difference]: Finished difference Result 16104 states and 19673 transitions. [2021-10-13 07:21:53,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 07:21:53,882 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 70.33333333333333) internal successors, (211), 3 states have internal predecessors, (211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 349 [2021-10-13 07:21:53,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:21:53,896 INFO L225 Difference]: With dead ends: 16104 [2021-10-13 07:21:53,896 INFO L226 Difference]: Without dead ends: 9066 [2021-10-13 07:21:53,903 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 1392 GetRequests, 1384 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 188.2ms TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2021-10-13 07:21:53,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9066 states. [2021-10-13 07:21:54,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9066 to 8143. [2021-10-13 07:21:54,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8143 states, 8142 states have (on average 1.197003193318595) internal successors, (9746), 8142 states have internal predecessors, (9746), 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 07:21:54,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8143 states to 8143 states and 9746 transitions. [2021-10-13 07:21:54,036 INFO L78 Accepts]: Start accepts. Automaton has 8143 states and 9746 transitions. Word has length 349 [2021-10-13 07:21:54,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:21:54,037 INFO L470 AbstractCegarLoop]: Abstraction has 8143 states and 9746 transitions. [2021-10-13 07:21:54,038 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 70.33333333333333) internal successors, (211), 3 states have internal predecessors, (211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:21:54,038 INFO L276 IsEmpty]: Start isEmpty. Operand 8143 states and 9746 transitions. [2021-10-13 07:21:54,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 401 [2021-10-13 07:21:54,084 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:21:54,085 INFO L512 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:21:54,101 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d10f8406-8e66-4c8d-9c9c-ef992f01b9b3/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-10-13 07:21:54,305 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d10f8406-8e66-4c8d-9c9c-ef992f01b9b3/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (10)] Forceful destruction successful, exit code 0 [2021-10-13 07:21:54,500 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d10f8406-8e66-4c8d-9c9c-ef992f01b9b3/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d10f8406-8e66-4c8d-9c9c-ef992f01b9b3/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt [2021-10-13 07:21:54,500 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 07:21:54,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:21:54,501 INFO L82 PathProgramCache]: Analyzing trace with hash 2034380711, now seen corresponding path program 1 times [2021-10-13 07:21:54,503 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:21:54,504 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [782967714] [2021-10-13 07:21:54,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:21:54,504 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:21:54,504 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d10f8406-8e66-4c8d-9c9c-ef992f01b9b3/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:21:54,505 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d10f8406-8e66-4c8d-9c9c-ef992f01b9b3/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:21:54,506 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d10f8406-8e66-4c8d-9c9c-ef992f01b9b3/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-10-13 07:21:56,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:21:56,220 INFO L263 TraceCheckSpWp]: Trace formula consists of 475 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-13 07:21:56,223 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:21:57,596 INFO L134 CoverageAnalysis]: Checked inductivity of 418 backedges. 279 proven. 75 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2021-10-13 07:21:57,597 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:21:58,959 INFO L134 CoverageAnalysis]: Checked inductivity of 418 backedges. 354 proven. 0 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2021-10-13 07:21:58,959 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:21:58,959 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [782967714] [2021-10-13 07:21:58,959 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [782967714] provided 1 perfect and 1 imperfect interpolant sequences [2021-10-13 07:21:58,959 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-13 07:21:58,959 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2021-10-13 07:21:58,959 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [391512640] [2021-10-13 07:21:58,960 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 07:21:58,960 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:21:58,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 07:21:58,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-13 07:21:58,961 INFO L87 Difference]: Start difference. First operand 8143 states and 9746 transitions. Second operand has 3 states, 3 states have (on average 112.33333333333333) internal successors, (337), 3 states have internal predecessors, (337), 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 07:22:21,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:22:21,126 INFO L93 Difference]: Finished difference Result 17756 states and 21334 transitions. [2021-10-13 07:22:21,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 07:22:21,127 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 112.33333333333333) internal successors, (337), 3 states have internal predecessors, (337), 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 400 [2021-10-13 07:22:21,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:22:21,148 INFO L225 Difference]: With dead ends: 17756 [2021-10-13 07:22:21,149 INFO L226 Difference]: Without dead ends: 9799 [2021-10-13 07:22:21,157 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 798 GetRequests, 795 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 16.9ms TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-13 07:22:21,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9799 states. [2021-10-13 07:22:21,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9799 to 9247. [2021-10-13 07:22:21,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9247 states, 9246 states have (on average 1.1760761410339606) internal successors, (10874), 9246 states have internal predecessors, (10874), 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 07:22:21,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9247 states to 9247 states and 10874 transitions. [2021-10-13 07:22:21,401 INFO L78 Accepts]: Start accepts. Automaton has 9247 states and 10874 transitions. Word has length 400 [2021-10-13 07:22:21,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:22:21,402 INFO L470 AbstractCegarLoop]: Abstraction has 9247 states and 10874 transitions. [2021-10-13 07:22:21,402 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 112.33333333333333) internal successors, (337), 3 states have internal predecessors, (337), 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 07:22:21,402 INFO L276 IsEmpty]: Start isEmpty. Operand 9247 states and 10874 transitions. [2021-10-13 07:22:21,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 406 [2021-10-13 07:22:21,418 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:22:21,419 INFO L512 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2021-10-13 07:22:21,445 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d10f8406-8e66-4c8d-9c9c-ef992f01b9b3/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-10-13 07:22:21,644 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d10f8406-8e66-4c8d-9c9c-ef992f01b9b3/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 07:22:21,645 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 07:22:21,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:22:21,645 INFO L82 PathProgramCache]: Analyzing trace with hash -1931760477, now seen corresponding path program 1 times [2021-10-13 07:22:21,648 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:22:21,648 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1101572804] [2021-10-13 07:22:21,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:22:21,649 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:22:21,649 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d10f8406-8e66-4c8d-9c9c-ef992f01b9b3/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:22:21,650 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d10f8406-8e66-4c8d-9c9c-ef992f01b9b3/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:22:21,651 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d10f8406-8e66-4c8d-9c9c-ef992f01b9b3/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-10-13 07:22:23,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:22:23,749 INFO L263 TraceCheckSpWp]: Trace formula consists of 480 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-13 07:22:23,753 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:22:26,817 INFO L134 CoverageAnalysis]: Checked inductivity of 468 backedges. 268 proven. 149 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2021-10-13 07:22:26,817 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:22:59,773 INFO L134 CoverageAnalysis]: Checked inductivity of 468 backedges. 281 proven. 136 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2021-10-13 07:22:59,773 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:22:59,773 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1101572804] [2021-10-13 07:22:59,773 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1101572804] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-13 07:22:59,773 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1312194071] [2021-10-13 07:22:59,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:22:59,774 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-13 07:22:59,774 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d10f8406-8e66-4c8d-9c9c-ef992f01b9b3/bin/utaipan-q2qaUkNPG8/cvc4 [2021-10-13 07:22:59,775 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d10f8406-8e66-4c8d-9c9c-ef992f01b9b3/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-13 07:22:59,776 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d10f8406-8e66-4c8d-9c9c-ef992f01b9b3/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (13)] Waiting until timeout for monitored process [2021-10-13 07:23:02,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:23:02,801 INFO L263 TraceCheckSpWp]: Trace formula consists of 480 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-13 07:23:02,809 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:23:06,400 INFO L134 CoverageAnalysis]: Checked inductivity of 468 backedges. 312 proven. 32 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2021-10-13 07:23:06,400 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:23:09,477 INFO L134 CoverageAnalysis]: Checked inductivity of 468 backedges. 331 proven. 13 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2021-10-13 07:23:09,477 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1312194071] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-13 07:23:09,477 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [393323511] [2021-10-13 07:23:09,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:23:09,477 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 07:23:09,478 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d10f8406-8e66-4c8d-9c9c-ef992f01b9b3/bin/utaipan-q2qaUkNPG8/z3 [2021-10-13 07:23:09,479 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d10f8406-8e66-4c8d-9c9c-ef992f01b9b3/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 07:23:09,479 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d10f8406-8e66-4c8d-9c9c-ef992f01b9b3/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2021-10-13 07:23:12,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:23:12,504 INFO L263 TraceCheckSpWp]: Trace formula consists of 480 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 07:23:12,508 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:23:13,533 INFO L134 CoverageAnalysis]: Checked inductivity of 468 backedges. 344 proven. 0 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2021-10-13 07:23:13,534 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:23:14,510 INFO L134 CoverageAnalysis]: Checked inductivity of 468 backedges. 344 proven. 0 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2021-10-13 07:23:14,511 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [393323511] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 07:23:14,511 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 4 imperfect interpolant sequences. [2021-10-13 07:23:14,512 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [4, 4, 8, 8] total 18 [2021-10-13 07:23:14,512 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [186650828] [2021-10-13 07:23:14,513 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 07:23:14,513 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:23:14,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 07:23:14,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=232, Unknown=0, NotChecked=0, Total=306 [2021-10-13 07:23:14,514 INFO L87 Difference]: Start difference. First operand 9247 states and 10874 transitions. Second operand has 3 states, 3 states have (on average 94.0) internal successors, (282), 3 states have internal predecessors, (282), 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 07:23:20,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:23:20,824 INFO L93 Difference]: Finished difference Result 16090 states and 18995 transitions. [2021-10-13 07:23:20,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 07:23:20,825 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 94.0) internal successors, (282), 3 states have internal predecessors, (282), 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 405 [2021-10-13 07:23:20,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:23:20,843 INFO L225 Difference]: With dead ends: 16090 [2021-10-13 07:23:20,844 INFO L226 Difference]: Without dead ends: 8690 [2021-10-13 07:23:20,851 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2424 GetRequests, 2408 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 2023.7ms TimeCoverageRelationStatistics Valid=74, Invalid=232, Unknown=0, NotChecked=0, Total=306 [2021-10-13 07:23:20,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8690 states. [2021-10-13 07:23:20,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8690 to 6849. [2021-10-13 07:23:20,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6849 states, 6848 states have (on average 1.1219334112149533) internal successors, (7683), 6848 states have internal predecessors, (7683), 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 07:23:21,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6849 states to 6849 states and 7683 transitions. [2021-10-13 07:23:21,004 INFO L78 Accepts]: Start accepts. Automaton has 6849 states and 7683 transitions. Word has length 405 [2021-10-13 07:23:21,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:23:21,005 INFO L470 AbstractCegarLoop]: Abstraction has 6849 states and 7683 transitions. [2021-10-13 07:23:21,006 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 94.0) internal successors, (282), 3 states have internal predecessors, (282), 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 07:23:21,006 INFO L276 IsEmpty]: Start isEmpty. Operand 6849 states and 7683 transitions. [2021-10-13 07:23:21,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 471 [2021-10-13 07:23:21,061 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:23:21,062 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-10-13 07:23:21,086 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d10f8406-8e66-4c8d-9c9c-ef992f01b9b3/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-10-13 07:23:21,269 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d10f8406-8e66-4c8d-9c9c-ef992f01b9b3/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (13)] Forceful destruction successful, exit code 0 [2021-10-13 07:23:21,498 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d10f8406-8e66-4c8d-9c9c-ef992f01b9b3/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2021-10-13 07:23:21,663 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d10f8406-8e66-4c8d-9c9c-ef992f01b9b3/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d10f8406-8e66-4c8d-9c9c-ef992f01b9b3/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d10f8406-8e66-4c8d-9c9c-ef992f01b9b3/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 07:23:21,663 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 07:23:21,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:23:21,664 INFO L82 PathProgramCache]: Analyzing trace with hash -206932432, now seen corresponding path program 1 times [2021-10-13 07:23:21,667 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:23:21,667 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1179137440] [2021-10-13 07:23:21,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:23:21,668 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:23:21,668 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d10f8406-8e66-4c8d-9c9c-ef992f01b9b3/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:23:21,669 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d10f8406-8e66-4c8d-9c9c-ef992f01b9b3/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:23:21,670 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d10f8406-8e66-4c8d-9c9c-ef992f01b9b3/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2021-10-13 07:23:24,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:23:24,433 INFO L263 TraceCheckSpWp]: Trace formula consists of 559 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-13 07:23:24,446 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:23:25,864 INFO L134 CoverageAnalysis]: Checked inductivity of 759 backedges. 473 proven. 81 refuted. 0 times theorem prover too weak. 205 trivial. 0 not checked. [2021-10-13 07:23:25,864 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:23:27,491 INFO L134 CoverageAnalysis]: Checked inductivity of 759 backedges. 554 proven. 0 refuted. 0 times theorem prover too weak. 205 trivial. 0 not checked. [2021-10-13 07:23:27,492 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:23:27,492 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1179137440] [2021-10-13 07:23:27,492 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1179137440] provided 1 perfect and 1 imperfect interpolant sequences [2021-10-13 07:23:27,492 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-13 07:23:27,492 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2021-10-13 07:23:27,492 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1888168107] [2021-10-13 07:23:27,493 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 07:23:27,493 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:23:27,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 07:23:27,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-13 07:23:27,494 INFO L87 Difference]: Start difference. First operand 6849 states and 7683 transitions. Second operand has 3 states, 3 states have (on average 110.33333333333333) internal successors, (331), 3 states have internal predecessors, (331), 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 07:23:41,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:23:41,817 INFO L93 Difference]: Finished difference Result 14800 states and 16624 transitions. [2021-10-13 07:23:41,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 07:23:41,839 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 110.33333333333333) internal successors, (331), 3 states have internal predecessors, (331), 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 470 [2021-10-13 07:23:41,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:23:41,853 INFO L225 Difference]: With dead ends: 14800 [2021-10-13 07:23:41,854 INFO L226 Difference]: Without dead ends: 8137 [2021-10-13 07:23:41,860 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 938 GetRequests, 935 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 16.1ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-13 07:23:41,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8137 states. [2021-10-13 07:23:41,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8137 to 7769. [2021-10-13 07:23:42,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7769 states, 7768 states have (on average 1.1105818743563336) internal successors, (8627), 7768 states have internal predecessors, (8627), 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 07:23:42,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7769 states to 7769 states and 8627 transitions. [2021-10-13 07:23:42,017 INFO L78 Accepts]: Start accepts. Automaton has 7769 states and 8627 transitions. Word has length 470 [2021-10-13 07:23:42,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:23:42,018 INFO L470 AbstractCegarLoop]: Abstraction has 7769 states and 8627 transitions. [2021-10-13 07:23:42,018 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 110.33333333333333) internal successors, (331), 3 states have internal predecessors, (331), 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 07:23:42,019 INFO L276 IsEmpty]: Start isEmpty. Operand 7769 states and 8627 transitions. [2021-10-13 07:23:42,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 481 [2021-10-13 07:23:42,033 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:23:42,033 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-10-13 07:23:42,064 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d10f8406-8e66-4c8d-9c9c-ef992f01b9b3/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2021-10-13 07:23:42,257 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d10f8406-8e66-4c8d-9c9c-ef992f01b9b3/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 07:23:42,258 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 07:23:42,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:23:42,258 INFO L82 PathProgramCache]: Analyzing trace with hash 1079798519, now seen corresponding path program 1 times [2021-10-13 07:23:42,260 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:23:42,261 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1302047994] [2021-10-13 07:23:42,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:23:42,261 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:23:42,261 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d10f8406-8e66-4c8d-9c9c-ef992f01b9b3/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:23:42,262 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d10f8406-8e66-4c8d-9c9c-ef992f01b9b3/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:23:42,263 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d10f8406-8e66-4c8d-9c9c-ef992f01b9b3/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2021-10-13 07:23:45,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:23:45,154 INFO L263 TraceCheckSpWp]: Trace formula consists of 569 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-13 07:23:45,159 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:23:49,040 INFO L134 CoverageAnalysis]: Checked inductivity of 769 backedges. 421 proven. 284 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2021-10-13 07:23:49,040 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:24:14,341 INFO L134 CoverageAnalysis]: Checked inductivity of 769 backedges. 502 proven. 203 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2021-10-13 07:24:14,342 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:24:14,342 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1302047994] [2021-10-13 07:24:14,342 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1302047994] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-13 07:24:14,342 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1779648616] [2021-10-13 07:24:14,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:24:14,342 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-13 07:24:14,342 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d10f8406-8e66-4c8d-9c9c-ef992f01b9b3/bin/utaipan-q2qaUkNPG8/cvc4 [2021-10-13 07:24:14,343 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d10f8406-8e66-4c8d-9c9c-ef992f01b9b3/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-13 07:24:14,344 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d10f8406-8e66-4c8d-9c9c-ef992f01b9b3/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (17)] Waiting until timeout for monitored process [2021-10-13 07:24:18,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:24:18,904 INFO L263 TraceCheckSpWp]: Trace formula consists of 569 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-13 07:24:18,911 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:24:24,577 INFO L134 CoverageAnalysis]: Checked inductivity of 769 backedges. 547 proven. 141 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2021-10-13 07:24:24,577 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:24:29,313 INFO L134 CoverageAnalysis]: Checked inductivity of 769 backedges. 549 proven. 139 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2021-10-13 07:24:29,313 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1779648616] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-13 07:24:29,313 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1716536769] [2021-10-13 07:24:29,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:24:29,314 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 07:24:29,314 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d10f8406-8e66-4c8d-9c9c-ef992f01b9b3/bin/utaipan-q2qaUkNPG8/z3 [2021-10-13 07:24:29,316 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d10f8406-8e66-4c8d-9c9c-ef992f01b9b3/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 07:24:29,317 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d10f8406-8e66-4c8d-9c9c-ef992f01b9b3/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2021-10-13 07:24:33,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:24:34,013 INFO L263 TraceCheckSpWp]: Trace formula consists of 569 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-13 07:24:34,020 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:24:35,104 INFO L134 CoverageAnalysis]: Checked inductivity of 769 backedges. 421 proven. 0 refuted. 0 times theorem prover too weak. 348 trivial. 0 not checked. [2021-10-13 07:24:35,104 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:24:35,946 INFO L134 CoverageAnalysis]: Checked inductivity of 769 backedges. 421 proven. 0 refuted. 0 times theorem prover too weak. 348 trivial. 0 not checked. [2021-10-13 07:24:35,946 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1716536769] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 07:24:35,946 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 4 imperfect interpolant sequences. [2021-10-13 07:24:35,947 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [5, 5, 8, 8] total 20 [2021-10-13 07:24:35,947 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [108001647] [2021-10-13 07:24:35,948 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 07:24:35,948 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:24:35,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 07:24:35,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=290, Unknown=0, NotChecked=0, Total=380 [2021-10-13 07:24:35,949 INFO L87 Difference]: Start difference. First operand 7769 states and 8627 transitions. Second operand has 3 states, 3 states have (on average 72.0) internal successors, (216), 3 states have internal predecessors, (216), 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 07:24:44,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:24:44,818 INFO L93 Difference]: Finished difference Result 13686 states and 15148 transitions. [2021-10-13 07:24:44,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 07:24:44,819 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 72.0) internal successors, (216), 3 states have internal predecessors, (216), 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 480 [2021-10-13 07:24:44,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:24:44,820 INFO L225 Difference]: With dead ends: 13686 [2021-10-13 07:24:44,820 INFO L226 Difference]: Without dead ends: 0 [2021-10-13 07:24:44,829 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2874 GetRequests, 2856 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 2781.9ms TimeCoverageRelationStatistics Valid=90, Invalid=290, Unknown=0, NotChecked=0, Total=380 [2021-10-13 07:24:44,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-13 07:24:44,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-13 07:24:44,830 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 07:24:44,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-13 07:24:44,830 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 480 [2021-10-13 07:24:44,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:24:44,831 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-13 07:24:44,831 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 72.0) internal successors, (216), 3 states have internal predecessors, (216), 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 07:24:44,831 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-13 07:24:44,831 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-13 07:24:44,834 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 07:24:44,849 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d10f8406-8e66-4c8d-9c9c-ef992f01b9b3/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (17)] Forceful destruction successful, exit code 0 [2021-10-13 07:24:45,067 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d10f8406-8e66-4c8d-9c9c-ef992f01b9b3/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (16)] Ended with exit code 0 [2021-10-13 07:24:45,285 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d10f8406-8e66-4c8d-9c9c-ef992f01b9b3/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2021-10-13 07:24:45,447 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d10f8406-8e66-4c8d-9c9c-ef992f01b9b3/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt,16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d10f8406-8e66-4c8d-9c9c-ef992f01b9b3/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d10f8406-8e66-4c8d-9c9c-ef992f01b9b3/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 07:24:45,449 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-13 07:24:45,452 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:24:45,876 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:24:46,028 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:24:47,288 INFO L857 garLoopResultBuilder]: For program point L498(lines 498 509) no Hoare annotation was computed. [2021-10-13 07:24:47,294 INFO L857 garLoopResultBuilder]: For program point L432(lines 432 1034) no Hoare annotation was computed. [2021-10-13 07:24:47,295 INFO L857 garLoopResultBuilder]: For program point L498-2(lines 498 509) no Hoare annotation was computed. [2021-10-13 07:24:47,295 INFO L857 garLoopResultBuilder]: For program point L168-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 07:24:47,295 INFO L857 garLoopResultBuilder]: For program point L102-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 07:24:47,295 INFO L857 garLoopResultBuilder]: For program point L36-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 07:24:47,295 INFO L857 garLoopResultBuilder]: For program point L1027(lines 1027 1034) no Hoare annotation was computed. [2021-10-13 07:24:47,296 INFO L857 garLoopResultBuilder]: For program point L631(lines 631 1034) no Hoare annotation was computed. [2021-10-13 07:24:47,296 INFO L857 garLoopResultBuilder]: For program point L565(lines 565 1034) no Hoare annotation was computed. [2021-10-13 07:24:47,296 INFO L857 garLoopResultBuilder]: For program point L169(line 169) no Hoare annotation was computed. [2021-10-13 07:24:47,296 INFO L857 garLoopResultBuilder]: For program point L103(line 103) no Hoare annotation was computed. [2021-10-13 07:24:47,297 INFO L857 garLoopResultBuilder]: For program point L37(line 37) no Hoare annotation was computed. [2021-10-13 07:24:47,297 INFO L857 garLoopResultBuilder]: For program point L896(lines 896 1034) no Hoare annotation was computed. [2021-10-13 07:24:47,298 INFO L857 garLoopResultBuilder]: For program point L698(lines 698 1034) no Hoare annotation was computed. [2021-10-13 07:24:47,298 INFO L857 garLoopResultBuilder]: For program point L368(lines 368 1034) no Hoare annotation was computed. [2021-10-13 07:24:47,299 INFO L857 garLoopResultBuilder]: For program point L963(lines 963 1034) no Hoare annotation was computed. [2021-10-13 07:24:47,299 INFO L857 garLoopResultBuilder]: For program point L237(lines 237 1034) no Hoare annotation was computed. [2021-10-13 07:24:47,299 INFO L857 garLoopResultBuilder]: For program point L171-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 07:24:47,299 INFO L857 garLoopResultBuilder]: For program point L105-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 07:24:47,299 INFO L857 garLoopResultBuilder]: For program point L39-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 07:24:47,299 INFO L857 garLoopResultBuilder]: For program point L832(lines 832 1034) no Hoare annotation was computed. [2021-10-13 07:24:47,299 INFO L857 garLoopResultBuilder]: For program point L304(lines 304 1034) no Hoare annotation was computed. [2021-10-13 07:24:47,300 INFO L857 garLoopResultBuilder]: For program point L172(line 172) no Hoare annotation was computed. [2021-10-13 07:24:47,300 INFO L857 garLoopResultBuilder]: For program point L106(line 106) no Hoare annotation was computed. [2021-10-13 07:24:47,300 INFO L857 garLoopResultBuilder]: For program point L40(line 40) no Hoare annotation was computed. [2021-10-13 07:24:47,300 INFO L857 garLoopResultBuilder]: For program point L767(lines 767 1034) no Hoare annotation was computed. [2021-10-13 07:24:47,300 INFO L857 garLoopResultBuilder]: For program point L768(lines 768 778) no Hoare annotation was computed. [2021-10-13 07:24:47,300 INFO L857 garLoopResultBuilder]: For program point L768-2(lines 768 778) no Hoare annotation was computed. [2021-10-13 07:24:47,300 INFO L857 garLoopResultBuilder]: For program point L174-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 07:24:47,300 INFO L857 garLoopResultBuilder]: For program point L108-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 07:24:47,300 INFO L857 garLoopResultBuilder]: For program point L42-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 07:24:47,300 INFO L857 garLoopResultBuilder]: For program point L835(lines 835 1034) no Hoare annotation was computed. [2021-10-13 07:24:47,300 INFO L857 garLoopResultBuilder]: For program point L571(lines 571 1034) no Hoare annotation was computed. [2021-10-13 07:24:47,300 INFO L857 garLoopResultBuilder]: For program point L439(lines 439 1034) no Hoare annotation was computed. [2021-10-13 07:24:47,301 INFO L857 garLoopResultBuilder]: For program point L175(line 175) no Hoare annotation was computed. [2021-10-13 07:24:47,301 INFO L857 garLoopResultBuilder]: For program point L109(line 109) no Hoare annotation was computed. [2021-10-13 07:24:47,301 INFO L857 garLoopResultBuilder]: For program point L43(line 43) no Hoare annotation was computed. [2021-10-13 07:24:47,301 INFO L857 garLoopResultBuilder]: For program point L968(lines 968 1034) no Hoare annotation was computed. [2021-10-13 07:24:47,301 INFO L857 garLoopResultBuilder]: For program point L704(lines 704 1034) no Hoare annotation was computed. [2021-10-13 07:24:47,301 INFO L857 garLoopResultBuilder]: For program point L638(lines 638 1034) no Hoare annotation was computed. [2021-10-13 07:24:47,301 INFO L853 garLoopResultBuilder]: At program point L1035(lines 32 1036) the Hoare annotation is: (let ((.cse3 (= ~a4~0 (_ bv1 32)))) (let ((.cse2 (not (bvsle ~a23~0 (_ bv4294967253 32)))) (.cse1 (not (= (_ bv13 32) ~a25~0))) (.cse5 (not .cse3)) (.cse4 (not (= ~a25~0 (_ bv9 32)))) (.cse0 (= ~a8~0 (_ bv15 32)))) (or (and .cse0 .cse1 (bvslt (_ bv277 32) ~a29~0)) (and (bvsge (_ bv138 32) ~a23~0) .cse0 .cse2) (and .cse0 .cse2 .cse3) (and (or .cse4 (not (bvsle ~a29~0 (_ bv140 32)))) .cse1 (= (_ bv312 32) ~a23~0) .cse5) (and (not (bvslt (_ bv140 32) ~a29~0)) .cse0 .cse1 .cse5) (and .cse0 .cse4 .cse3) (and .cse0 (= ~a25~0 (_ bv12 32)))))) [2021-10-13 07:24:47,302 INFO L857 garLoopResultBuilder]: For program point L903(lines 903 1034) no Hoare annotation was computed. [2021-10-13 07:24:47,302 INFO L857 garLoopResultBuilder]: For program point L705(lines 705 715) no Hoare annotation was computed. [2021-10-13 07:24:47,302 INFO L857 garLoopResultBuilder]: For program point L705-2(lines 705 715) no Hoare annotation was computed. [2021-10-13 07:24:47,302 INFO L857 garLoopResultBuilder]: For program point L375(lines 375 1034) no Hoare annotation was computed. [2021-10-13 07:24:47,302 INFO L857 garLoopResultBuilder]: For program point L309(lines 309 1034) no Hoare annotation was computed. [2021-10-13 07:24:47,302 INFO L857 garLoopResultBuilder]: For program point L243(lines 243 1034) no Hoare annotation was computed. [2021-10-13 07:24:47,302 INFO L857 garLoopResultBuilder]: For program point L177-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 07:24:47,302 INFO L857 garLoopResultBuilder]: For program point L111-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 07:24:47,302 INFO L857 garLoopResultBuilder]: For program point L45-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 07:24:47,302 INFO L857 garLoopResultBuilder]: For program point L178(line 178) no Hoare annotation was computed. [2021-10-13 07:24:47,302 INFO L857 garLoopResultBuilder]: For program point L112(line 112) no Hoare annotation was computed. [2021-10-13 07:24:47,302 INFO L857 garLoopResultBuilder]: For program point L46(line 46) no Hoare annotation was computed. [2021-10-13 07:24:47,303 INFO L860 garLoopResultBuilder]: At program point L1038(lines 1038 1054) the Hoare annotation is: true [2021-10-13 07:24:47,303 INFO L857 garLoopResultBuilder]: For program point L576(lines 576 1034) no Hoare annotation was computed. [2021-10-13 07:24:47,303 INFO L857 garLoopResultBuilder]: For program point L510(lines 510 1034) no Hoare annotation was computed. [2021-10-13 07:24:47,303 INFO L857 garLoopResultBuilder]: For program point L180-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 07:24:47,303 INFO L857 garLoopResultBuilder]: For program point L114-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 07:24:47,303 INFO L857 garLoopResultBuilder]: For program point L48-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 07:24:47,303 INFO L857 garLoopResultBuilder]: For program point L973(lines 973 1034) no Hoare annotation was computed. [2021-10-13 07:24:47,303 INFO L857 garLoopResultBuilder]: For program point L841(lines 841 1034) no Hoare annotation was computed. [2021-10-13 07:24:47,303 INFO L857 garLoopResultBuilder]: For program point L181(line 181) no Hoare annotation was computed. [2021-10-13 07:24:47,303 INFO L857 garLoopResultBuilder]: For program point L115(line 115) no Hoare annotation was computed. [2021-10-13 07:24:47,303 INFO L857 garLoopResultBuilder]: For program point L49(line 49) no Hoare annotation was computed. [2021-10-13 07:24:47,303 INFO L857 garLoopResultBuilder]: For program point L908(lines 908 1034) no Hoare annotation was computed. [2021-10-13 07:24:47,303 INFO L857 garLoopResultBuilder]: For program point L446(lines 446 1034) no Hoare annotation was computed. [2021-10-13 07:24:47,304 INFO L857 garLoopResultBuilder]: For program point L380(lines 380 1034) no Hoare annotation was computed. [2021-10-13 07:24:47,304 INFO L857 garLoopResultBuilder]: For program point L645(lines 645 1034) no Hoare annotation was computed. [2021-10-13 07:24:47,304 INFO L857 garLoopResultBuilder]: For program point L315(lines 315 1034) no Hoare annotation was computed. [2021-10-13 07:24:47,304 INFO L857 garLoopResultBuilder]: For program point L183-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 07:24:47,304 INFO L857 garLoopResultBuilder]: For program point L117-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 07:24:47,304 INFO L857 garLoopResultBuilder]: For program point L51-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 07:24:47,304 INFO L857 garLoopResultBuilder]: For program point L250(lines 250 1034) no Hoare annotation was computed. [2021-10-13 07:24:47,304 INFO L857 garLoopResultBuilder]: For program point L184(line 184) no Hoare annotation was computed. [2021-10-13 07:24:47,304 INFO L857 garLoopResultBuilder]: For program point L118(line 118) no Hoare annotation was computed. [2021-10-13 07:24:47,304 INFO L857 garLoopResultBuilder]: For program point L52(line 52) no Hoare annotation was computed. [2021-10-13 07:24:47,305 INFO L857 garLoopResultBuilder]: For program point L779(lines 779 1034) no Hoare annotation was computed. [2021-10-13 07:24:47,305 INFO L853 garLoopResultBuilder]: At program point L1044-2(lines 1044 1053) the Hoare annotation is: (let ((.cse3 (= ~a4~0 (_ bv1 32)))) (let ((.cse2 (not (bvsle ~a23~0 (_ bv4294967253 32)))) (.cse1 (not (= (_ bv13 32) ~a25~0))) (.cse5 (not .cse3)) (.cse4 (not (= ~a25~0 (_ bv9 32)))) (.cse0 (= ~a8~0 (_ bv15 32)))) (or (and .cse0 .cse1 (bvslt (_ bv277 32) ~a29~0)) (and (bvsge (_ bv138 32) ~a23~0) .cse0 .cse2) (and .cse0 .cse2 .cse3) (and (or .cse4 (not (bvsle ~a29~0 (_ bv140 32)))) .cse1 (= (_ bv312 32) ~a23~0) .cse5) (and (not (bvslt (_ bv140 32) ~a29~0)) .cse0 .cse1 .cse5) (and .cse0 .cse4 .cse3) (and .cse0 (= ~a25~0 (_ bv12 32)))))) [2021-10-13 07:24:47,305 INFO L857 garLoopResultBuilder]: For program point L846(lines 846 1034) no Hoare annotation was computed. [2021-10-13 07:24:47,305 INFO L857 garLoopResultBuilder]: For program point L582(lines 582 1034) no Hoare annotation was computed. [2021-10-13 07:24:47,305 INFO L857 garLoopResultBuilder]: For program point L186-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 07:24:47,305 INFO L857 garLoopResultBuilder]: For program point L120-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 07:24:47,305 INFO L857 garLoopResultBuilder]: For program point L54-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 07:24:47,306 INFO L857 garLoopResultBuilder]: For program point L979(lines 979 1034) no Hoare annotation was computed. [2021-10-13 07:24:47,306 INFO L857 garLoopResultBuilder]: For program point L913(lines 913 1034) no Hoare annotation was computed. [2021-10-13 07:24:47,306 INFO L857 garLoopResultBuilder]: For program point L517(lines 517 1034) no Hoare annotation was computed. [2021-10-13 07:24:47,306 INFO L857 garLoopResultBuilder]: For program point L187(line 187) no Hoare annotation was computed. [2021-10-13 07:24:47,306 INFO L857 garLoopResultBuilder]: For program point L121(line 121) no Hoare annotation was computed. [2021-10-13 07:24:47,306 INFO L857 garLoopResultBuilder]: For program point L55(line 55) no Hoare annotation was computed. [2021-10-13 07:24:47,306 INFO L857 garLoopResultBuilder]: For program point L980(lines 980 990) no Hoare annotation was computed. [2021-10-13 07:24:47,306 INFO L857 garLoopResultBuilder]: For program point L914(lines 914 924) no Hoare annotation was computed. [2021-10-13 07:24:47,306 INFO L857 garLoopResultBuilder]: For program point L980-2(lines 980 990) no Hoare annotation was computed. [2021-10-13 07:24:47,306 INFO L857 garLoopResultBuilder]: For program point L914-2(lines 914 924) no Hoare annotation was computed. [2021-10-13 07:24:47,306 INFO L857 garLoopResultBuilder]: For program point L716(lines 716 1034) no Hoare annotation was computed. [2021-10-13 07:24:47,306 INFO L857 garLoopResultBuilder]: For program point L320(lines 320 1034) no Hoare annotation was computed. [2021-10-13 07:24:47,306 INFO L857 garLoopResultBuilder]: For program point L585(lines 585 1034) no Hoare annotation was computed. [2021-10-13 07:24:47,307 INFO L857 garLoopResultBuilder]: For program point L453(lines 453 1034) no Hoare annotation was computed. [2021-10-13 07:24:47,307 INFO L857 garLoopResultBuilder]: For program point L387(lines 387 1034) no Hoare annotation was computed. [2021-10-13 07:24:47,307 INFO L857 garLoopResultBuilder]: For program point L189-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 07:24:47,307 INFO L857 garLoopResultBuilder]: For program point L123-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 07:24:47,307 INFO L857 garLoopResultBuilder]: For program point L57-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 07:24:47,307 INFO L857 garLoopResultBuilder]: For program point L784(lines 784 1034) no Hoare annotation was computed. [2021-10-13 07:24:47,307 INFO L857 garLoopResultBuilder]: For program point L652(lines 652 1034) no Hoare annotation was computed. [2021-10-13 07:24:47,307 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-13 07:24:47,307 INFO L857 garLoopResultBuilder]: For program point L190(line 190) no Hoare annotation was computed. [2021-10-13 07:24:47,307 INFO L857 garLoopResultBuilder]: For program point L124(line 124) no Hoare annotation was computed. [2021-10-13 07:24:47,307 INFO L857 garLoopResultBuilder]: For program point L58(line 58) no Hoare annotation was computed. [2021-10-13 07:24:47,307 INFO L857 garLoopResultBuilder]: For program point L1049(line 1049) no Hoare annotation was computed. [2021-10-13 07:24:47,307 INFO L857 garLoopResultBuilder]: For program point L851(lines 851 1034) no Hoare annotation was computed. [2021-10-13 07:24:47,307 INFO L857 garLoopResultBuilder]: For program point L257(lines 257 1034) no Hoare annotation was computed. [2021-10-13 07:24:47,308 INFO L857 garLoopResultBuilder]: For program point L192-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 07:24:47,308 INFO L857 garLoopResultBuilder]: For program point L126-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 07:24:47,308 INFO L857 garLoopResultBuilder]: For program point L60-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 07:24:47,308 INFO L857 garLoopResultBuilder]: For program point L193(line 193) no Hoare annotation was computed. [2021-10-13 07:24:47,308 INFO L857 garLoopResultBuilder]: For program point L127(line 127) no Hoare annotation was computed. [2021-10-13 07:24:47,308 INFO L857 garLoopResultBuilder]: For program point L61(line 61) no Hoare annotation was computed. [2021-10-13 07:24:47,308 INFO L857 garLoopResultBuilder]: For program point L722(lines 722 1034) no Hoare annotation was computed. [2021-10-13 07:24:47,308 INFO L857 garLoopResultBuilder]: For program point L524(lines 524 1034) no Hoare annotation was computed. [2021-10-13 07:24:47,309 INFO L857 garLoopResultBuilder]: For program point L657(lines 657 1034) no Hoare annotation was computed. [2021-10-13 07:24:47,309 INFO L857 garLoopResultBuilder]: For program point L591(lines 591 1034) no Hoare annotation was computed. [2021-10-13 07:24:47,309 INFO L857 garLoopResultBuilder]: For program point L525(lines 525 535) no Hoare annotation was computed. [2021-10-13 07:24:47,309 INFO L857 garLoopResultBuilder]: For program point L525-2(lines 525 535) no Hoare annotation was computed. [2021-10-13 07:24:47,316 INFO L857 garLoopResultBuilder]: For program point L327(lines 327 1034) no Hoare annotation was computed. [2021-10-13 07:24:47,316 INFO L857 garLoopResultBuilder]: For program point L195-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 07:24:47,316 INFO L857 garLoopResultBuilder]: For program point L129-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 07:24:47,316 INFO L857 garLoopResultBuilder]: For program point L63-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 07:24:47,316 INFO L857 garLoopResultBuilder]: For program point L856(lines 856 1034) no Hoare annotation was computed. [2021-10-13 07:24:47,317 INFO L857 garLoopResultBuilder]: For program point L790(lines 790 1034) no Hoare annotation was computed. [2021-10-13 07:24:47,317 INFO L857 garLoopResultBuilder]: For program point L658(lines 658 667) no Hoare annotation was computed. [2021-10-13 07:24:47,317 INFO L857 garLoopResultBuilder]: For program point L658-2(lines 658 667) no Hoare annotation was computed. [2021-10-13 07:24:47,317 INFO L857 garLoopResultBuilder]: For program point L460(lines 460 1034) no Hoare annotation was computed. [2021-10-13 07:24:47,317 INFO L857 garLoopResultBuilder]: For program point L394(lines 394 1034) no Hoare annotation was computed. [2021-10-13 07:24:47,317 INFO L857 garLoopResultBuilder]: For program point L196(line 196) no Hoare annotation was computed. [2021-10-13 07:24:47,317 INFO L857 garLoopResultBuilder]: For program point L130(line 130) no Hoare annotation was computed. [2021-10-13 07:24:47,318 INFO L857 garLoopResultBuilder]: For program point L64(line 64) no Hoare annotation was computed. [2021-10-13 07:24:47,318 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-10-13 07:24:47,318 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 214) no Hoare annotation was computed. [2021-10-13 07:24:47,333 INFO L857 garLoopResultBuilder]: For program point L264(lines 264 1034) no Hoare annotation was computed. [2021-10-13 07:24:47,333 INFO L857 garLoopResultBuilder]: For program point L198-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 07:24:47,333 INFO L857 garLoopResultBuilder]: For program point L132-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 07:24:47,333 INFO L857 garLoopResultBuilder]: For program point L66-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 07:24:47,333 INFO L857 garLoopResultBuilder]: For program point L991(lines 991 1034) no Hoare annotation was computed. [2021-10-13 07:24:47,333 INFO L857 garLoopResultBuilder]: For program point L925(lines 925 1034) no Hoare annotation was computed. [2021-10-13 07:24:47,333 INFO L857 garLoopResultBuilder]: For program point L727(lines 727 1034) no Hoare annotation was computed. [2021-10-13 07:24:47,333 INFO L857 garLoopResultBuilder]: For program point L199(line 199) no Hoare annotation was computed. [2021-10-13 07:24:47,334 INFO L857 garLoopResultBuilder]: For program point L133(line 133) no Hoare annotation was computed. [2021-10-13 07:24:47,334 INFO L857 garLoopResultBuilder]: For program point L67(line 67) no Hoare annotation was computed. [2021-10-13 07:24:47,334 INFO L857 garLoopResultBuilder]: For program point L926(lines 926 936) no Hoare annotation was computed. [2021-10-13 07:24:47,334 INFO L857 garLoopResultBuilder]: For program point L926-2(lines 926 936) no Hoare annotation was computed. [2021-10-13 07:24:47,334 INFO L857 garLoopResultBuilder]: For program point L728(lines 728 740) no Hoare annotation was computed. [2021-10-13 07:24:47,334 INFO L857 garLoopResultBuilder]: For program point L728-2(lines 728 740) no Hoare annotation was computed. [2021-10-13 07:24:47,334 INFO L857 garLoopResultBuilder]: For program point L596(lines 596 1034) no Hoare annotation was computed. [2021-10-13 07:24:47,335 INFO L857 garLoopResultBuilder]: For program point L332(lines 332 1034) no Hoare annotation was computed. [2021-10-13 07:24:47,335 INFO L857 garLoopResultBuilder]: For program point L597(lines 597 607) no Hoare annotation was computed. [2021-10-13 07:24:47,335 INFO L857 garLoopResultBuilder]: For program point L597-2(lines 597 607) no Hoare annotation was computed. [2021-10-13 07:24:47,335 INFO L857 garLoopResultBuilder]: For program point L201-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 07:24:47,335 INFO L857 garLoopResultBuilder]: For program point L135-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 07:24:47,335 INFO L857 garLoopResultBuilder]: For program point L69-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 07:24:47,336 INFO L857 garLoopResultBuilder]: For program point L862(lines 862 1034) no Hoare annotation was computed. [2021-10-13 07:24:47,336 INFO L857 garLoopResultBuilder]: For program point L466(lines 466 1034) no Hoare annotation was computed. [2021-10-13 07:24:47,336 INFO L857 garLoopResultBuilder]: For program point L202(line 202) no Hoare annotation was computed. [2021-10-13 07:24:47,336 INFO L857 garLoopResultBuilder]: For program point L136(line 136) no Hoare annotation was computed. [2021-10-13 07:24:47,336 INFO L857 garLoopResultBuilder]: For program point L70(line 70) no Hoare annotation was computed. [2021-10-13 07:24:47,336 INFO L857 garLoopResultBuilder]: For program point L797(lines 797 1034) no Hoare annotation was computed. [2021-10-13 07:24:47,337 INFO L857 garLoopResultBuilder]: For program point L401(lines 401 1034) no Hoare annotation was computed. [2021-10-13 07:24:47,337 INFO L857 garLoopResultBuilder]: For program point L270(lines 270 1034) no Hoare annotation was computed. [2021-10-13 07:24:47,337 INFO L857 garLoopResultBuilder]: For program point L204-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 07:24:47,337 INFO L857 garLoopResultBuilder]: For program point L138-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 07:24:47,337 INFO L857 garLoopResultBuilder]: For program point L72-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 07:24:47,337 INFO L857 garLoopResultBuilder]: For program point L205(line 205) no Hoare annotation was computed. [2021-10-13 07:24:47,338 INFO L857 garLoopResultBuilder]: For program point L139(line 139) no Hoare annotation was computed. [2021-10-13 07:24:47,338 INFO L857 garLoopResultBuilder]: For program point L73(line 73) no Hoare annotation was computed. [2021-10-13 07:24:47,338 INFO L857 garLoopResultBuilder]: For program point L998(lines 998 1034) no Hoare annotation was computed. [2021-10-13 07:24:47,338 INFO L857 garLoopResultBuilder]: For program point L668(lines 668 1034) no Hoare annotation was computed. [2021-10-13 07:24:47,338 INFO L857 garLoopResultBuilder]: For program point L536(lines 536 1034) no Hoare annotation was computed. [2021-10-13 07:24:47,338 INFO L857 garLoopResultBuilder]: For program point L339(lines 339 1034) no Hoare annotation was computed. [2021-10-13 07:24:47,338 INFO L857 garLoopResultBuilder]: For program point L207-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 07:24:47,339 INFO L857 garLoopResultBuilder]: For program point L141-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 07:24:47,339 INFO L857 garLoopResultBuilder]: For program point L75-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 07:24:47,339 INFO L857 garLoopResultBuilder]: For program point L802(lines 802 1034) no Hoare annotation was computed. [2021-10-13 07:24:47,339 INFO L857 garLoopResultBuilder]: For program point L208(line 208) no Hoare annotation was computed. [2021-10-13 07:24:47,339 INFO L857 garLoopResultBuilder]: For program point L142(line 142) no Hoare annotation was computed. [2021-10-13 07:24:47,340 INFO L857 garLoopResultBuilder]: For program point L76(line 76) no Hoare annotation was computed. [2021-10-13 07:24:47,340 INFO L857 garLoopResultBuilder]: For program point L869(lines 869 1034) no Hoare annotation was computed. [2021-10-13 07:24:47,340 INFO L857 garLoopResultBuilder]: For program point L473(lines 473 1034) no Hoare annotation was computed. [2021-10-13 07:24:47,340 INFO L857 garLoopResultBuilder]: For program point L275(lines 275 1034) no Hoare annotation was computed. [2021-10-13 07:24:47,340 INFO L857 garLoopResultBuilder]: For program point L408(lines 408 1034) no Hoare annotation was computed. [2021-10-13 07:24:47,340 INFO L857 garLoopResultBuilder]: For program point L210-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 07:24:47,340 INFO L857 garLoopResultBuilder]: For program point L144-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 07:24:47,341 INFO L857 garLoopResultBuilder]: For program point L78-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 07:24:47,341 INFO L857 garLoopResultBuilder]: For program point L1003(lines 1003 1034) no Hoare annotation was computed. [2021-10-13 07:24:47,341 INFO L857 garLoopResultBuilder]: For program point L937(lines 937 1034) no Hoare annotation was computed. [2021-10-13 07:24:47,341 INFO L857 garLoopResultBuilder]: For program point L673(lines 673 1034) no Hoare annotation was computed. [2021-10-13 07:24:47,341 INFO L857 garLoopResultBuilder]: For program point L541(lines 541 1034) no Hoare annotation was computed. [2021-10-13 07:24:47,341 INFO L857 garLoopResultBuilder]: For program point L409(lines 409 420) no Hoare annotation was computed. [2021-10-13 07:24:47,342 INFO L857 garLoopResultBuilder]: For program point L409-2(lines 409 420) no Hoare annotation was computed. [2021-10-13 07:24:47,342 INFO L857 garLoopResultBuilder]: For program point L211(line 211) no Hoare annotation was computed. [2021-10-13 07:24:47,342 INFO L857 garLoopResultBuilder]: For program point L145(line 145) no Hoare annotation was computed. [2021-10-13 07:24:47,342 INFO L857 garLoopResultBuilder]: For program point L79(line 79) no Hoare annotation was computed. [2021-10-13 07:24:47,342 INFO L857 garLoopResultBuilder]: For program point L608(lines 608 1034) no Hoare annotation was computed. [2021-10-13 07:24:47,342 INFO L857 garLoopResultBuilder]: For program point L344(lines 344 1034) no Hoare annotation was computed. [2021-10-13 07:24:47,343 INFO L857 garLoopResultBuilder]: For program point L278(lines 278 1034) no Hoare annotation was computed. [2021-10-13 07:24:47,343 INFO L857 garLoopResultBuilder]: For program point L741(lines 741 1034) no Hoare annotation was computed. [2021-10-13 07:24:47,344 INFO L857 garLoopResultBuilder]: For program point L213-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 07:24:47,344 INFO L857 garLoopResultBuilder]: For program point L147-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 07:24:47,344 INFO L857 garLoopResultBuilder]: For program point L81-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 07:24:47,344 INFO L857 garLoopResultBuilder]: For program point L214(line 214) no Hoare annotation was computed. [2021-10-13 07:24:47,344 INFO L857 garLoopResultBuilder]: For program point L148(line 148) no Hoare annotation was computed. [2021-10-13 07:24:47,344 INFO L857 garLoopResultBuilder]: For program point L82(line 82) no Hoare annotation was computed. [2021-10-13 07:24:47,345 INFO L857 garLoopResultBuilder]: For program point L875(lines 875 1034) no Hoare annotation was computed. [2021-10-13 07:24:47,345 INFO L857 garLoopResultBuilder]: For program point L809(lines 809 1034) no Hoare annotation was computed. [2021-10-13 07:24:47,345 INFO L857 garLoopResultBuilder]: For program point L942(lines 942 1034) no Hoare annotation was computed. [2021-10-13 07:24:47,345 INFO L857 garLoopResultBuilder]: For program point L876(lines 876 885) no Hoare annotation was computed. [2021-10-13 07:24:47,345 INFO L857 garLoopResultBuilder]: For program point L876-2(lines 876 885) no Hoare annotation was computed. [2021-10-13 07:24:47,345 INFO L857 garLoopResultBuilder]: For program point L480(lines 480 1034) no Hoare annotation was computed. [2021-10-13 07:24:47,346 INFO L857 garLoopResultBuilder]: For program point L150-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 07:24:47,346 INFO L857 garLoopResultBuilder]: For program point L84-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 07:24:47,346 INFO L857 garLoopResultBuilder]: For program point L613(lines 613 1034) no Hoare annotation was computed. [2021-10-13 07:24:47,346 INFO L857 garLoopResultBuilder]: For program point L547(lines 547 1034) no Hoare annotation was computed. [2021-10-13 07:24:47,346 INFO L857 garLoopResultBuilder]: For program point L151(line 151) no Hoare annotation was computed. [2021-10-13 07:24:47,346 INFO L857 garLoopResultBuilder]: For program point L85(line 85) no Hoare annotation was computed. [2021-10-13 07:24:47,347 INFO L857 garLoopResultBuilder]: For program point L1010(lines 1010 1034) no Hoare annotation was computed. [2021-10-13 07:24:47,347 INFO L857 garLoopResultBuilder]: For program point L680(lines 680 1034) no Hoare annotation was computed. [2021-10-13 07:24:47,347 INFO L857 garLoopResultBuilder]: For program point L614(lines 614 624) no Hoare annotation was computed. [2021-10-13 07:24:47,347 INFO L857 garLoopResultBuilder]: For program point L614-2(lines 614 624) no Hoare annotation was computed. [2021-10-13 07:24:47,347 INFO L857 garLoopResultBuilder]: For program point L350(lines 350 1034) no Hoare annotation was computed. [2021-10-13 07:24:47,347 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-13 07:24:47,347 INFO L857 garLoopResultBuilder]: For program point L285(lines 285 1034) no Hoare annotation was computed. [2021-10-13 07:24:47,348 INFO L857 garLoopResultBuilder]: For program point L153-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 07:24:47,348 INFO L857 garLoopResultBuilder]: For program point L87-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 07:24:47,348 INFO L857 garLoopResultBuilder]: For program point L814(lines 814 1034) no Hoare annotation was computed. [2021-10-13 07:24:47,348 INFO L857 garLoopResultBuilder]: For program point L748(lines 748 1034) no Hoare annotation was computed. [2021-10-13 07:24:47,348 INFO L857 garLoopResultBuilder]: For program point L154(line 154) no Hoare annotation was computed. [2021-10-13 07:24:47,348 INFO L857 garLoopResultBuilder]: For program point L88(line 88) no Hoare annotation was computed. [2021-10-13 07:24:47,349 INFO L857 garLoopResultBuilder]: For program point L815(lines 815 825) no Hoare annotation was computed. [2021-10-13 07:24:47,349 INFO L857 garLoopResultBuilder]: For program point L815-2(lines 815 825) no Hoare annotation was computed. [2021-10-13 07:24:47,349 INFO L857 garLoopResultBuilder]: For program point L552(lines 552 1034) no Hoare annotation was computed. [2021-10-13 07:24:47,349 INFO L857 garLoopResultBuilder]: For program point L156-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 07:24:47,349 INFO L857 garLoopResultBuilder]: For program point L90-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 07:24:47,349 INFO L857 garLoopResultBuilder]: For program point L1015(lines 1015 1034) no Hoare annotation was computed. [2021-10-13 07:24:47,349 INFO L857 garLoopResultBuilder]: For program point L949(lines 949 1034) no Hoare annotation was computed. [2021-10-13 07:24:47,350 INFO L857 garLoopResultBuilder]: For program point L685(lines 685 1034) no Hoare annotation was computed. [2021-10-13 07:24:47,350 INFO L857 garLoopResultBuilder]: For program point L487(lines 487 1034) no Hoare annotation was computed. [2021-10-13 07:24:47,350 INFO L857 garLoopResultBuilder]: For program point L421(lines 421 1034) no Hoare annotation was computed. [2021-10-13 07:24:47,351 INFO L857 garLoopResultBuilder]: For program point L157(line 157) no Hoare annotation was computed. [2021-10-13 07:24:47,351 INFO L857 garLoopResultBuilder]: For program point L91(line 91) no Hoare annotation was computed. [2021-10-13 07:24:47,352 INFO L857 garLoopResultBuilder]: For program point L950(lines 950 962) no Hoare annotation was computed. [2021-10-13 07:24:47,352 INFO L857 garLoopResultBuilder]: For program point L950-2(lines 950 962) no Hoare annotation was computed. [2021-10-13 07:24:47,352 INFO L857 garLoopResultBuilder]: For program point L488(lines 488 496) no Hoare annotation was computed. [2021-10-13 07:24:47,352 INFO L857 garLoopResultBuilder]: For program point L488-2(lines 488 496) no Hoare annotation was computed. [2021-10-13 07:24:47,352 INFO L857 garLoopResultBuilder]: For program point L356(lines 356 1034) no Hoare annotation was computed. [2021-10-13 07:24:47,352 INFO L857 garLoopResultBuilder]: For program point L290(lines 290 1034) no Hoare annotation was computed. [2021-10-13 07:24:47,353 INFO L857 garLoopResultBuilder]: For program point L224(lines 224 1034) no Hoare annotation was computed. [2021-10-13 07:24:47,354 INFO L857 garLoopResultBuilder]: For program point L753(lines 753 1034) no Hoare annotation was computed. [2021-10-13 07:24:47,354 INFO L857 garLoopResultBuilder]: For program point L159-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 07:24:47,355 INFO L857 garLoopResultBuilder]: For program point L93-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 07:24:47,356 INFO L857 garLoopResultBuilder]: For program point L886(lines 886 1034) no Hoare annotation was computed. [2021-10-13 07:24:47,356 INFO L857 garLoopResultBuilder]: For program point L160(line 160) no Hoare annotation was computed. [2021-10-13 07:24:47,356 INFO L857 garLoopResultBuilder]: For program point L94(line 94) no Hoare annotation was computed. [2021-10-13 07:24:47,356 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-13 07:24:47,356 INFO L857 garLoopResultBuilder]: For program point L162-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 07:24:47,357 INFO L857 garLoopResultBuilder]: For program point L96-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 07:24:47,357 INFO L857 garLoopResultBuilder]: For program point L691(lines 691 1034) no Hoare annotation was computed. [2021-10-13 07:24:47,358 INFO L857 garLoopResultBuilder]: For program point L625(lines 625 1034) no Hoare annotation was computed. [2021-10-13 07:24:47,358 INFO L857 garLoopResultBuilder]: For program point L559(lines 559 1034) no Hoare annotation was computed. [2021-10-13 07:24:47,358 INFO L857 garLoopResultBuilder]: For program point L427(lines 427 1034) no Hoare annotation was computed. [2021-10-13 07:24:47,358 INFO L857 garLoopResultBuilder]: For program point L163(line 163) no Hoare annotation was computed. [2021-10-13 07:24:47,358 INFO L857 garLoopResultBuilder]: For program point L97(line 97) no Hoare annotation was computed. [2021-10-13 07:24:47,358 INFO L857 garLoopResultBuilder]: For program point L1022(lines 1022 1034) no Hoare annotation was computed. [2021-10-13 07:24:47,359 INFO L857 garLoopResultBuilder]: For program point L891(lines 891 1034) no Hoare annotation was computed. [2021-10-13 07:24:47,359 INFO L857 garLoopResultBuilder]: For program point L363(lines 363 1034) no Hoare annotation was computed. [2021-10-13 07:24:47,359 INFO L857 garLoopResultBuilder]: For program point L297(lines 297 1034) no Hoare annotation was computed. [2021-10-13 07:24:47,359 INFO L857 garLoopResultBuilder]: For program point L231(lines 231 1034) no Hoare annotation was computed. [2021-10-13 07:24:47,359 INFO L857 garLoopResultBuilder]: For program point L165-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 07:24:47,359 INFO L857 garLoopResultBuilder]: For program point L99-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 07:24:47,359 INFO L857 garLoopResultBuilder]: For program point L33(lines 33 35) no Hoare annotation was computed. [2021-10-13 07:24:47,360 INFO L857 garLoopResultBuilder]: For program point L33-2(lines 32 1036) no Hoare annotation was computed. [2021-10-13 07:24:47,360 INFO L857 garLoopResultBuilder]: For program point L826(lines 826 1034) no Hoare annotation was computed. [2021-10-13 07:24:47,360 INFO L857 garLoopResultBuilder]: For program point L760(lines 760 1034) no Hoare annotation was computed. [2021-10-13 07:24:47,360 INFO L857 garLoopResultBuilder]: For program point L166(line 166) no Hoare annotation was computed. [2021-10-13 07:24:47,360 INFO L857 garLoopResultBuilder]: For program point L100(line 100) no Hoare annotation was computed. [2021-10-13 07:24:47,360 INFO L857 garLoopResultBuilder]: For program point L34(line 34) no Hoare annotation was computed. [2021-10-13 07:24:47,360 INFO L857 garLoopResultBuilder]: For program point L497(lines 497 1034) no Hoare annotation was computed. [2021-10-13 07:24:47,365 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-13 07:24:47,405 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 07:24:47 BoogieIcfgContainer [2021-10-13 07:24:47,405 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-13 07:24:47,406 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-13 07:24:47,406 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-13 07:24:47,407 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-13 07:24:47,407 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:19:25" (3/4) ... [2021-10-13 07:24:47,410 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-13 07:24:47,459 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2021-10-13 07:24:47,468 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-10-13 07:24:47,470 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-13 07:24:47,472 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-13 07:24:47,655 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d10f8406-8e66-4c8d-9c9c-ef992f01b9b3/bin/utaipan-q2qaUkNPG8/witness.graphml [2021-10-13 07:24:47,656 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-13 07:24:47,657 INFO L168 Benchmark]: Toolchain (without parser) took 332709.49 ms. Allocated memory was 73.4 MB in the beginning and 434.1 MB in the end (delta: 360.7 MB). Free memory was 51.4 MB in the beginning and 59.0 MB in the end (delta: -7.6 MB). Peak memory consumption was 353.6 MB. Max. memory is 16.1 GB. [2021-10-13 07:24:47,658 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 73.4 MB. Free memory is still 54.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 07:24:47,659 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1043.54 ms. Allocated memory was 73.4 MB in the beginning and 96.5 MB in the end (delta: 23.1 MB). Free memory was 51.2 MB in the beginning and 54.3 MB in the end (delta: -3.0 MB). Peak memory consumption was 21.2 MB. Max. memory is 16.1 GB. [2021-10-13 07:24:47,659 INFO L168 Benchmark]: Boogie Procedure Inliner took 210.43 ms. Allocated memory is still 96.5 MB. Free memory was 53.8 MB in the beginning and 68.7 MB in the end (delta: -14.9 MB). Peak memory consumption was 14.3 MB. Max. memory is 16.1 GB. [2021-10-13 07:24:47,659 INFO L168 Benchmark]: Boogie Preprocessor took 154.58 ms. Allocated memory is still 96.5 MB. Free memory was 68.7 MB in the beginning and 62.0 MB in the end (delta: 6.8 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-13 07:24:47,660 INFO L168 Benchmark]: RCFGBuilder took 8697.04 ms. Allocated memory was 96.5 MB in the beginning and 142.6 MB in the end (delta: 46.1 MB). Free memory was 61.8 MB in the beginning and 94.0 MB in the end (delta: -32.3 MB). Peak memory consumption was 32.8 MB. Max. memory is 16.1 GB. [2021-10-13 07:24:47,660 INFO L168 Benchmark]: TraceAbstraction took 322345.63 ms. Allocated memory was 142.6 MB in the beginning and 434.1 MB in the end (delta: 291.5 MB). Free memory was 93.1 MB in the beginning and 83.4 MB in the end (delta: 9.7 MB). Peak memory consumption was 329.4 MB. Max. memory is 16.1 GB. [2021-10-13 07:24:47,661 INFO L168 Benchmark]: Witness Printer took 249.97 ms. Allocated memory is still 434.1 MB. Free memory was 83.4 MB in the beginning and 59.0 MB in the end (delta: 24.4 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.1 GB. [2021-10-13 07:24:47,663 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 73.4 MB. Free memory is still 54.2 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 1043.54 ms. Allocated memory was 73.4 MB in the beginning and 96.5 MB in the end (delta: 23.1 MB). Free memory was 51.2 MB in the beginning and 54.3 MB in the end (delta: -3.0 MB). Peak memory consumption was 21.2 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 210.43 ms. Allocated memory is still 96.5 MB. Free memory was 53.8 MB in the beginning and 68.7 MB in the end (delta: -14.9 MB). Peak memory consumption was 14.3 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 154.58 ms. Allocated memory is still 96.5 MB. Free memory was 68.7 MB in the beginning and 62.0 MB in the end (delta: 6.8 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * RCFGBuilder took 8697.04 ms. Allocated memory was 96.5 MB in the beginning and 142.6 MB in the end (delta: 46.1 MB). Free memory was 61.8 MB in the beginning and 94.0 MB in the end (delta: -32.3 MB). Peak memory consumption was 32.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 322345.63 ms. Allocated memory was 142.6 MB in the beginning and 434.1 MB in the end (delta: 291.5 MB). Free memory was 93.1 MB in the beginning and 83.4 MB in the end (delta: 9.7 MB). Peak memory consumption was 329.4 MB. Max. memory is 16.1 GB. * Witness Printer took 249.97 ms. Allocated memory is still 434.1 MB. Free memory was 83.4 MB in the beginning and 59.0 MB in the end (delta: 24.4 MB). Peak memory consumption was 25.2 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: 214]: 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, 283 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 322232.8ms, OverallIterations: 12, TraceHistogramMax: 5, EmptinessCheckTime: 260.0ms, AutomataDifference: 161457.4ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 1840.5ms, InitialAbstractionConstructionTime: 22.6ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 2210 SDtfs, 2824 SDslu, 327 SDs, 0 SdLazy, 8303 SolverSat, 1814 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 142263.7ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 11528 GetRequests, 11466 SyntacticMatches, 1 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 162 ImplicationChecksByTransitivity, 5191.8ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=9247occurred in iteration=9, InterpolantAutomatonStates: 41, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 1680.7ms AutomataMinimizationTime, 12 MinimizatonAttempts, 5770 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 94 NumberOfFragments, 179 HoareAnnotationTreeSize, 3 FomulaSimplifications, 7084 FormulaSimplificationTreeSizeReduction, 577.5ms HoareSimplificationTime, 3 FomulaSimplificationsInter, 2606 FormulaSimplificationTreeSizeReductionInter, 1254.3ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 475.7ms SsaConstructionTime, 2859.4ms SatisfiabilityAnalysisTime, 122017.6ms InterpolantComputationTime, 5781 NumberOfCodeBlocks, 5781 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 11528 ConstructedInterpolants, 0 QuantifiedInterpolants, 49192 SizeOfPredicates, 44 NumberOfNonLiveVariables, 6968 ConjunctsInSsa, 79 ConjunctsInUnsatCore, 34 InterpolantComputations, 21 PerfectInterpolantSequences, 11717/13252 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: 1044]: Loop Invariant Derived loop invariant: (((((((a8 == 15bv32 && !(13bv32 == a25)) && ~bvslt32(277bv32, a29)) || ((~bvsge32(138bv32, a23) && a8 == 15bv32) && !~bvsle32(a23, 4294967253bv32))) || ((a8 == 15bv32 && !~bvsle32(a23, 4294967253bv32)) && a4 == 1bv32)) || ((((!(a25 == 9bv32) || !~bvsle32(a29, 140bv32)) && !(13bv32 == a25)) && 312bv32 == a23) && !(a4 == 1bv32))) || (((!~bvslt32(140bv32, a29) && a8 == 15bv32) && !(13bv32 == a25)) && !(a4 == 1bv32))) || ((a8 == 15bv32 && !(a25 == 9bv32)) && a4 == 1bv32)) || (a8 == 15bv32 && a25 == 12bv32) - InvariantResult [Line: 32]: Loop Invariant Derived loop invariant: (((((((a8 == 15bv32 && !(13bv32 == a25)) && ~bvslt32(277bv32, a29)) || ((~bvsge32(138bv32, a23) && a8 == 15bv32) && !~bvsle32(a23, 4294967253bv32))) || ((a8 == 15bv32 && !~bvsle32(a23, 4294967253bv32)) && a4 == 1bv32)) || ((((!(a25 == 9bv32) || !~bvsle32(a29, 140bv32)) && !(13bv32 == a25)) && 312bv32 == a23) && !(a4 == 1bv32))) || (((!~bvslt32(140bv32, a29) && a8 == 15bv32) && !(13bv32 == a25)) && !(a4 == 1bv32))) || ((a8 == 15bv32 && !(a25 == 9bv32)) && a4 == 1bv32)) || (a8 == 15bv32 && a25 == 12bv32) - InvariantResult [Line: 1038]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2021-10-13 07:24:47,765 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d10f8406-8e66-4c8d-9c9c-ef992f01b9b3/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...