./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem14_label17.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_2393f825-6487-46f6-b1ba-06fb99c9c0d9/bin/utaipan-q2qaUkNPG8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2393f825-6487-46f6-b1ba-06fb99c9c0d9/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_2393f825-6487-46f6-b1ba-06fb99c9c0d9/bin/utaipan-q2qaUkNPG8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2393f825-6487-46f6-b1ba-06fb99c9c0d9/bin/utaipan-q2qaUkNPG8/config/TaipanReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem14_label17.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2393f825-6487-46f6-b1ba-06fb99c9c0d9/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_2393f825-6487-46f6-b1ba-06fb99c9c0d9/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 49dac4ca9ee8c434b3fbcc0dc92d48d94344e2f3 ....................................................................................................................................................................................................................................................................................................................................................... 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_2393f825-6487-46f6-b1ba-06fb99c9c0d9/bin/utaipan-q2qaUkNPG8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2393f825-6487-46f6-b1ba-06fb99c9c0d9/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_2393f825-6487-46f6-b1ba-06fb99c9c0d9/bin/utaipan-q2qaUkNPG8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2393f825-6487-46f6-b1ba-06fb99c9c0d9/bin/utaipan-q2qaUkNPG8/config/TaipanReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem14_label17.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2393f825-6487-46f6-b1ba-06fb99c9c0d9/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_2393f825-6487-46f6-b1ba-06fb99c9c0d9/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 49dac4ca9ee8c434b3fbcc0dc92d48d94344e2f3 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 07:22:09,691 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 07:22:09,697 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 07:22:09,771 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 07:22:09,771 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 07:22:09,778 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 07:22:09,780 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 07:22:09,782 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 07:22:09,785 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 07:22:09,789 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 07:22:09,790 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 07:22:09,793 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 07:22:09,794 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 07:22:09,802 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 07:22:09,805 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 07:22:09,808 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 07:22:09,814 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 07:22:09,815 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 07:22:09,818 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 07:22:09,823 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 07:22:09,829 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 07:22:09,831 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 07:22:09,835 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 07:22:09,836 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 07:22:09,844 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 07:22:09,845 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 07:22:09,846 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 07:22:09,849 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 07:22:09,849 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 07:22:09,851 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 07:22:09,853 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 07:22:09,854 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 07:22:09,857 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 07:22:09,858 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 07:22:09,861 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 07:22:09,861 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 07:22:09,862 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 07:22:09,863 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 07:22:09,863 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 07:22:09,864 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 07:22:09,865 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 07:22:09,866 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2393f825-6487-46f6-b1ba-06fb99c9c0d9/bin/utaipan-q2qaUkNPG8/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-13 07:22:09,927 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 07:22:09,927 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 07:22:09,929 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-13 07:22:09,929 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-13 07:22:09,930 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-13 07:22:09,930 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-13 07:22:09,930 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-13 07:22:09,931 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-13 07:22:09,931 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-13 07:22:09,931 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-13 07:22:09,939 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-13 07:22:09,940 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-13 07:22:09,940 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-13 07:22:09,940 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-13 07:22:09,941 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-13 07:22:09,942 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 07:22:09,942 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 07:22:09,942 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 07:22:09,943 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 07:22:09,943 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 07:22:09,943 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-13 07:22:09,943 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 07:22:09,944 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-13 07:22:09,944 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-13 07:22:09,944 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 07:22:09,944 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 07:22:09,945 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 07:22:09,945 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-13 07:22:09,945 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 07:22:09,947 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-13 07:22:09,947 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 07:22:09,948 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 07:22:09,948 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 07:22:09,948 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-13 07:22:09,949 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-13 07:22:09,949 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-13 07:22:09,949 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-13 07:22:09,949 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 07:22:09,950 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-13 07:22:09,950 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_2393f825-6487-46f6-b1ba-06fb99c9c0d9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2393f825-6487-46f6-b1ba-06fb99c9c0d9/bin/utaipan-q2qaUkNPG8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 49dac4ca9ee8c434b3fbcc0dc92d48d94344e2f3 [2021-10-13 07:22:10,227 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 07:22:10,264 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 07:22:10,267 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 07:22:10,268 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 07:22:10,269 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 07:22:10,270 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2393f825-6487-46f6-b1ba-06fb99c9c0d9/bin/utaipan-q2qaUkNPG8/../../sv-benchmarks/c/eca-rers2012/Problem14_label17.c [2021-10-13 07:22:10,383 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2393f825-6487-46f6-b1ba-06fb99c9c0d9/bin/utaipan-q2qaUkNPG8/data/da5bb6052/ff011e694e07487b831affb7d2c4499a/FLAG014d71efa [2021-10-13 07:22:11,044 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 07:22:11,045 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2393f825-6487-46f6-b1ba-06fb99c9c0d9/sv-benchmarks/c/eca-rers2012/Problem14_label17.c [2021-10-13 07:22:11,063 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2393f825-6487-46f6-b1ba-06fb99c9c0d9/bin/utaipan-q2qaUkNPG8/data/da5bb6052/ff011e694e07487b831affb7d2c4499a/FLAG014d71efa [2021-10-13 07:22:11,264 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2393f825-6487-46f6-b1ba-06fb99c9c0d9/bin/utaipan-q2qaUkNPG8/data/da5bb6052/ff011e694e07487b831affb7d2c4499a [2021-10-13 07:22:11,268 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 07:22:11,270 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 07:22:11,272 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 07:22:11,273 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 07:22:11,277 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 07:22:11,278 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:22:11" (1/1) ... [2021-10-13 07:22:11,280 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4aaf9929 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:22:11, skipping insertion in model container [2021-10-13 07:22:11,281 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:22:11" (1/1) ... [2021-10-13 07:22:11,288 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 07:22:11,342 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 07:22:11,659 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_2393f825-6487-46f6-b1ba-06fb99c9c0d9/sv-benchmarks/c/eca-rers2012/Problem14_label17.c[5746,5759] [2021-10-13 07:22:11,896 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 07:22:11,909 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 07:22:11,959 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_2393f825-6487-46f6-b1ba-06fb99c9c0d9/sv-benchmarks/c/eca-rers2012/Problem14_label17.c[5746,5759] [2021-10-13 07:22:12,073 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 07:22:12,089 INFO L208 MainTranslator]: Completed translation [2021-10-13 07:22:12,089 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:22:12 WrapperNode [2021-10-13 07:22:12,090 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 07:22:12,091 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 07:22:12,091 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 07:22:12,091 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 07:22:12,099 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:22:12" (1/1) ... [2021-10-13 07:22:12,159 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:22:12" (1/1) ... [2021-10-13 07:22:12,251 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 07:22:12,252 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 07:22:12,252 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 07:22:12,252 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 07:22:12,261 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:22:12" (1/1) ... [2021-10-13 07:22:12,261 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:22:12" (1/1) ... [2021-10-13 07:22:12,269 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:22:12" (1/1) ... [2021-10-13 07:22:12,270 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:22:12" (1/1) ... [2021-10-13 07:22:12,312 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:22:12" (1/1) ... [2021-10-13 07:22:12,344 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:22:12" (1/1) ... [2021-10-13 07:22:12,351 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:22:12" (1/1) ... [2021-10-13 07:22:12,367 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 07:22:12,368 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 07:22:12,369 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 07:22:12,369 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 07:22:12,371 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:22:12" (1/1) ... [2021-10-13 07:22:12,379 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 07:22:12,393 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2393f825-6487-46f6-b1ba-06fb99c9c0d9/bin/utaipan-q2qaUkNPG8/z3 [2021-10-13 07:22:12,411 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2393f825-6487-46f6-b1ba-06fb99c9c0d9/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-13 07:22:12,428 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2393f825-6487-46f6-b1ba-06fb99c9c0d9/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-13 07:22:12,469 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-13 07:22:12,469 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 07:22:12,471 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 07:22:12,471 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 07:22:29,150 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 07:22:29,151 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-10-13 07:22:29,154 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:22:29 BoogieIcfgContainer [2021-10-13 07:22:29,155 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 07:22:29,157 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-13 07:22:29,157 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-13 07:22:29,160 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-13 07:22:29,160 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 07:22:11" (1/3) ... [2021-10-13 07:22:29,161 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59e21628 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:22:29, skipping insertion in model container [2021-10-13 07:22:29,162 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:22:12" (2/3) ... [2021-10-13 07:22:29,162 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59e21628 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:22:29, skipping insertion in model container [2021-10-13 07:22:29,162 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:22:29" (3/3) ... [2021-10-13 07:22:29,164 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem14_label17.c [2021-10-13 07:22:29,263 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-13 07:22:29,280 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-13 07:22:29,350 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-13 07:22:29,361 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 07:22:29,363 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-13 07:22:29,389 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 07:22:29,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-13 07:22:29,395 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:22:29,396 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-10-13 07:22:29,397 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 07:22:29,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:22:29,407 INFO L82 PathProgramCache]: Analyzing trace with hash 1065580781, now seen corresponding path program 1 times [2021-10-13 07:22:29,420 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:22:29,420 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [241282050] [2021-10-13 07:22:29,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:22:29,422 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:22:29,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:22:29,728 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 07:22:29,729 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 07:22:29,729 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [241282050] [2021-10-13 07:22:29,730 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [241282050] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 07:22:29,731 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:22:29,731 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-13 07:22:29,743 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [69285287] [2021-10-13 07:22:29,749 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 07:22:29,750 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 07:22:29,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 07:22:29,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:22:29,771 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 07:22:29,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:22:29,874 INFO L93 Difference]: Finished difference Result 23 states and 29 transitions. [2021-10-13 07:22:29,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 07:22:29,877 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 07:22:29,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:22:29,889 INFO L225 Difference]: With dead ends: 23 [2021-10-13 07:22:29,889 INFO L226 Difference]: Without dead ends: 11 [2021-10-13 07:22:29,894 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.9ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:22:29,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2021-10-13 07:22:29,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 10. [2021-10-13 07:22:29,925 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 07:22:29,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2021-10-13 07:22:29,928 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 10 transitions. Word has length 5 [2021-10-13 07:22:29,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:22:29,929 INFO L470 AbstractCegarLoop]: Abstraction has 10 states and 10 transitions. [2021-10-13 07:22:29,929 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 07:22:29,930 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 10 transitions. [2021-10-13 07:22:29,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-13 07:22:29,930 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:22:29,931 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1] [2021-10-13 07:22:29,931 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-13 07:22:29,932 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 07:22:29,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:22:29,936 INFO L82 PathProgramCache]: Analyzing trace with hash -1313368539, now seen corresponding path program 1 times [2021-10-13 07:22:29,936 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:22:29,937 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1281313400] [2021-10-13 07:22:29,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:22:29,938 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:22:30,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:22:30,542 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 07:22:30,543 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 07:22:30,543 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1281313400] [2021-10-13 07:22:30,544 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1281313400] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 07:22:30,544 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [857116128] [2021-10-13 07:22:30,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:22:30,545 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 07:22:30,545 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2393f825-6487-46f6-b1ba-06fb99c9c0d9/bin/utaipan-q2qaUkNPG8/z3 [2021-10-13 07:22:30,551 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2393f825-6487-46f6-b1ba-06fb99c9c0d9/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 07:22:30,559 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2393f825-6487-46f6-b1ba-06fb99c9c0d9/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-10-13 07:22:30,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:22:30,664 INFO L263 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-13 07:22:30,672 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:23:11,767 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:23:11,767 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:26:45,596 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: BigInteger out of long range [2021-10-13 07:26:45,596 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [857701900] [2021-10-13 07:26:45,621 INFO L159 IcfgInterpreter]: Started Sifa with 7 locations of interest [2021-10-13 07:26:45,621 INFO L166 IcfgInterpreter]: Building call graph [2021-10-13 07:26:45,627 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-10-13 07:26:45,633 INFO L176 IcfgInterpreter]: Starting interpretation [2021-10-13 07:26:45,634 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-10-13 07:26:45,671 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:26:45,674 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-13 07:26:45,675 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:26:45,676 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-10-13 07:26:45,677 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-13 07:26:45,678 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:26:45,679 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-10-13 07:26:45,681 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 152 [2021-10-13 07:26:45,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 07:26:45,726 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 07:26:45,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 07:26:45,736 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 07:26:45,737 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:26:45,740 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-10-13 07:26:45,741 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:26:45,745 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-10-13 07:26:45,746 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-13 07:26:45,748 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:26:45,782 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:26:45,785 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:26:45,787 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 152 [2021-10-13 07:26:45,788 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-10-13 07:26:45,788 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:149, output treesize:152 [2021-10-13 07:26:45,838 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2393f825-6487-46f6-b1ba-06fb99c9c0d9/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-10-13 07:26:46,009 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2393f825-6487-46f6-b1ba-06fb99c9c0d9/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 07:26:46,010 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 07:26:46,015 INFO L168 Benchmark]: Toolchain (without parser) took 274744.37 ms. Allocated memory was 94.4 MB in the beginning and 1.3 GB in the end (delta: 1.2 GB). Free memory was 57.0 MB in the beginning and 890.6 MB in the end (delta: -833.6 MB). Peak memory consumption was 373.3 MB. Max. memory is 16.1 GB. [2021-10-13 07:26:46,016 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 94.4 MB. Free memory was 65.4 MB in the beginning and 65.4 MB in the end (delta: 30.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 07:26:46,017 INFO L168 Benchmark]: CACSL2BoogieTranslator took 817.72 ms. Allocated memory was 94.4 MB in the beginning and 138.4 MB in the end (delta: 44.0 MB). Free memory was 56.8 MB in the beginning and 91.6 MB in the end (delta: -34.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-13 07:26:46,018 INFO L168 Benchmark]: Boogie Procedure Inliner took 160.56 ms. Allocated memory is still 138.4 MB. Free memory was 91.6 MB in the beginning and 82.0 MB in the end (delta: 9.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-13 07:26:46,018 INFO L168 Benchmark]: Boogie Preprocessor took 115.68 ms. Allocated memory is still 138.4 MB. Free memory was 82.0 MB in the beginning and 75.7 MB in the end (delta: 6.3 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-13 07:26:46,019 INFO L168 Benchmark]: RCFGBuilder took 16786.36 ms. Allocated memory was 138.4 MB in the beginning and 429.9 MB in the end (delta: 291.5 MB). Free memory was 75.7 MB in the beginning and 124.0 MB in the end (delta: -48.3 MB). Peak memory consumption was 245.4 MB. Max. memory is 16.1 GB. [2021-10-13 07:26:46,020 INFO L168 Benchmark]: TraceAbstraction took 256857.04 ms. Allocated memory was 429.9 MB in the beginning and 1.3 GB in the end (delta: 872.4 MB). Free memory was 123.0 MB in the beginning and 890.6 MB in the end (delta: -767.6 MB). Peak memory consumption was 104.8 MB. Max. memory is 16.1 GB. [2021-10-13 07:26:46,025 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 94.4 MB. Free memory was 65.4 MB in the beginning and 65.4 MB in the end (delta: 30.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 817.72 ms. Allocated memory was 94.4 MB in the beginning and 138.4 MB in the end (delta: 44.0 MB). Free memory was 56.8 MB in the beginning and 91.6 MB in the end (delta: -34.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 160.56 ms. Allocated memory is still 138.4 MB. Free memory was 91.6 MB in the beginning and 82.0 MB in the end (delta: 9.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 115.68 ms. Allocated memory is still 138.4 MB. Free memory was 82.0 MB in the beginning and 75.7 MB in the end (delta: 6.3 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * RCFGBuilder took 16786.36 ms. Allocated memory was 138.4 MB in the beginning and 429.9 MB in the end (delta: 291.5 MB). Free memory was 75.7 MB in the beginning and 124.0 MB in the end (delta: -48.3 MB). Peak memory consumption was 245.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 256857.04 ms. Allocated memory was 429.9 MB in the beginning and 1.3 GB in the end (delta: 872.4 MB). Free memory was 123.0 MB in the beginning and 890.6 MB in the end (delta: -767.6 MB). Peak memory consumption was 104.8 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: No corresponding IProgramVar for |v_#valid_10| de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: No corresponding IProgramVar for |v_#valid_10|: de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.TermVarsProc.computeTermVarsProc(TermVarsProc.java:97) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-10-13 07:26:46,086 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2393f825-6487-46f6-b1ba-06fb99c9c0d9/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.1-dev-4e77c04 [2021-10-13 07:26:49,000 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 07:26:49,004 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 07:26:49,073 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 07:26:49,074 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 07:26:49,081 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 07:26:49,085 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 07:26:49,091 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 07:26:49,095 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 07:26:49,105 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 07:26:49,107 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 07:26:49,109 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 07:26:49,110 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 07:26:49,113 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 07:26:49,116 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 07:26:49,119 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 07:26:49,122 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 07:26:49,123 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 07:26:49,134 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 07:26:49,141 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 07:26:49,147 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 07:26:49,149 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 07:26:49,152 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 07:26:49,155 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 07:26:49,163 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 07:26:49,163 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 07:26:49,164 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 07:26:49,166 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 07:26:49,166 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 07:26:49,167 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 07:26:49,168 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 07:26:49,168 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 07:26:49,169 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 07:26:49,170 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 07:26:49,174 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 07:26:49,174 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 07:26:49,176 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 07:26:49,176 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 07:26:49,176 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 07:26:49,179 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 07:26:49,180 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 07:26:49,186 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2393f825-6487-46f6-b1ba-06fb99c9c0d9/bin/utaipan-q2qaUkNPG8/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-10-13 07:26:49,243 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 07:26:49,244 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 07:26:49,245 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-13 07:26:49,246 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-13 07:26:49,246 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-13 07:26:49,246 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-13 07:26:49,246 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-13 07:26:49,247 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-13 07:26:49,247 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-13 07:26:49,249 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 07:26:49,250 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 07:26:49,250 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 07:26:49,251 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 07:26:49,251 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-13 07:26:49,251 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 07:26:49,251 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-13 07:26:49,252 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-13 07:26:49,252 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-13 07:26:49,252 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-13 07:26:49,252 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 07:26:49,253 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 07:26:49,253 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 07:26:49,253 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-13 07:26:49,253 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 07:26:49,254 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-13 07:26:49,254 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-13 07:26:49,254 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 07:26:49,254 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 07:26:49,255 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 07:26:49,255 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-13 07:26:49,255 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-13 07:26:49,255 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-13 07:26:49,256 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-13 07:26:49,256 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 07:26:49,256 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-13 07:26:49,257 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_2393f825-6487-46f6-b1ba-06fb99c9c0d9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2393f825-6487-46f6-b1ba-06fb99c9c0d9/bin/utaipan-q2qaUkNPG8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 49dac4ca9ee8c434b3fbcc0dc92d48d94344e2f3 [2021-10-13 07:26:49,687 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 07:26:49,712 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 07:26:49,715 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 07:26:49,717 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 07:26:49,718 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 07:26:49,719 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2393f825-6487-46f6-b1ba-06fb99c9c0d9/bin/utaipan-q2qaUkNPG8/../../sv-benchmarks/c/eca-rers2012/Problem14_label17.c [2021-10-13 07:26:49,801 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2393f825-6487-46f6-b1ba-06fb99c9c0d9/bin/utaipan-q2qaUkNPG8/data/fae8b2021/822b1359a0da482b81d5d23862fb4b5e/FLAG1be99cdce [2021-10-13 07:26:50,548 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 07:26:50,549 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2393f825-6487-46f6-b1ba-06fb99c9c0d9/sv-benchmarks/c/eca-rers2012/Problem14_label17.c [2021-10-13 07:26:50,583 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2393f825-6487-46f6-b1ba-06fb99c9c0d9/bin/utaipan-q2qaUkNPG8/data/fae8b2021/822b1359a0da482b81d5d23862fb4b5e/FLAG1be99cdce [2021-10-13 07:26:50,723 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2393f825-6487-46f6-b1ba-06fb99c9c0d9/bin/utaipan-q2qaUkNPG8/data/fae8b2021/822b1359a0da482b81d5d23862fb4b5e [2021-10-13 07:26:50,732 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 07:26:50,735 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 07:26:50,743 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 07:26:50,743 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 07:26:50,747 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 07:26:50,748 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:26:50" (1/1) ... [2021-10-13 07:26:50,751 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@537d3e4c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:26:50, skipping insertion in model container [2021-10-13 07:26:50,752 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:26:50" (1/1) ... [2021-10-13 07:26:50,766 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 07:26:50,841 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 07:26:51,192 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_2393f825-6487-46f6-b1ba-06fb99c9c0d9/sv-benchmarks/c/eca-rers2012/Problem14_label17.c[5746,5759] [2021-10-13 07:26:51,491 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 07:26:51,506 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 07:26:51,546 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_2393f825-6487-46f6-b1ba-06fb99c9c0d9/sv-benchmarks/c/eca-rers2012/Problem14_label17.c[5746,5759] [2021-10-13 07:26:51,783 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 07:26:51,814 INFO L208 MainTranslator]: Completed translation [2021-10-13 07:26:51,815 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:26:51 WrapperNode [2021-10-13 07:26:51,815 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 07:26:51,816 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 07:26:51,817 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 07:26:51,817 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 07:26:51,825 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:26:51" (1/1) ... [2021-10-13 07:26:51,854 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:26:51" (1/1) ... [2021-10-13 07:26:51,946 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 07:26:51,947 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 07:26:51,947 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 07:26:51,948 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 07:26:51,955 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:26:51" (1/1) ... [2021-10-13 07:26:51,955 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:26:51" (1/1) ... [2021-10-13 07:26:51,963 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:26:51" (1/1) ... [2021-10-13 07:26:51,963 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:26:51" (1/1) ... [2021-10-13 07:26:52,002 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:26:51" (1/1) ... [2021-10-13 07:26:52,016 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:26:51" (1/1) ... [2021-10-13 07:26:52,044 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:26:51" (1/1) ... [2021-10-13 07:26:52,057 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 07:26:52,074 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 07:26:52,075 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 07:26:52,075 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 07:26:52,076 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:26:51" (1/1) ... [2021-10-13 07:26:52,084 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 07:26:52,098 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2393f825-6487-46f6-b1ba-06fb99c9c0d9/bin/utaipan-q2qaUkNPG8/z3 [2021-10-13 07:26:52,111 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2393f825-6487-46f6-b1ba-06fb99c9c0d9/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-13 07:26:52,132 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2393f825-6487-46f6-b1ba-06fb99c9c0d9/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-13 07:26:52,161 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-13 07:26:52,161 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 07:26:52,182 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 07:26:52,183 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 07:26:56,227 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 07:26:56,228 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-10-13 07:26:56,234 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:26:56 BoogieIcfgContainer [2021-10-13 07:26:56,234 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 07:26:56,237 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-13 07:26:56,237 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-13 07:26:56,242 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-13 07:26:56,242 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 07:26:50" (1/3) ... [2021-10-13 07:26:56,243 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19bc8ce3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:26:56, skipping insertion in model container [2021-10-13 07:26:56,244 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:26:51" (2/3) ... [2021-10-13 07:26:56,244 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19bc8ce3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:26:56, skipping insertion in model container [2021-10-13 07:26:56,244 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:26:56" (3/3) ... [2021-10-13 07:26:56,246 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem14_label17.c [2021-10-13 07:26:56,253 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-13 07:26:56,254 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-13 07:26:56,319 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-13 07:26:56,326 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 07:26:56,326 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-13 07:26:56,354 INFO L276 IsEmpty]: Start isEmpty. Operand has 245 states, 243 states have (on average 1.7366255144032923) internal successors, (422), 244 states have internal predecessors, (422), 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 07:26:56,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-10-13 07:26:56,365 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:26:56,366 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] [2021-10-13 07:26:56,367 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 07:26:56,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:26:56,374 INFO L82 PathProgramCache]: Analyzing trace with hash -2158734, now seen corresponding path program 1 times [2021-10-13 07:26:56,405 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:26:56,406 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1323622314] [2021-10-13 07:26:56,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:26:56,407 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:26:56,408 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2393f825-6487-46f6-b1ba-06fb99c9c0d9/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:26:56,416 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2393f825-6487-46f6-b1ba-06fb99c9c0d9/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:26:56,420 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2393f825-6487-46f6-b1ba-06fb99c9c0d9/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-13 07:26:56,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:26:56,507 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 07:26:56,514 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:26:56,879 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 07:26:56,880 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:26:57,211 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 07:26:57,212 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:26:57,213 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1323622314] [2021-10-13 07:26:57,214 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1323622314] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 07:26:57,214 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:26:57,214 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-10-13 07:26:57,216 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1295583577] [2021-10-13 07:26:57,222 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 07:26:57,223 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:26:57,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 07:26:57,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 07:26:57,243 INFO L87 Difference]: Start difference. First operand has 245 states, 243 states have (on average 1.7366255144032923) internal successors, (422), 244 states have internal predecessors, (422), 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 27.75) internal successors, (111), 3 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:27:03,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:27:03,608 INFO L93 Difference]: Finished difference Result 850 states and 1558 transitions. [2021-10-13 07:27:03,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 07:27:03,611 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.75) internal successors, (111), 3 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 56 [2021-10-13 07:27:03,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:27:03,633 INFO L225 Difference]: With dead ends: 850 [2021-10-13 07:27:03,633 INFO L226 Difference]: Without dead ends: 538 [2021-10-13 07:27:03,638 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 24.5ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 07:27:03,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 538 states. [2021-10-13 07:27:03,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 538 to 538. [2021-10-13 07:27:03,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 538 states, 537 states have (on average 1.5381750465549349) internal successors, (826), 537 states have internal predecessors, (826), 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 07:27:03,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 826 transitions. [2021-10-13 07:27:03,738 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 826 transitions. Word has length 56 [2021-10-13 07:27:03,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:27:03,751 INFO L470 AbstractCegarLoop]: Abstraction has 538 states and 826 transitions. [2021-10-13 07:27:03,752 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.75) internal successors, (111), 3 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:27:03,752 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 826 transitions. [2021-10-13 07:27:03,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2021-10-13 07:27:03,758 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:27:03,758 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:27:03,784 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2393f825-6487-46f6-b1ba-06fb99c9c0d9/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-13 07:27:03,971 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2393f825-6487-46f6-b1ba-06fb99c9c0d9/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 07:27:03,971 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 07:27:03,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:27:03,973 INFO L82 PathProgramCache]: Analyzing trace with hash 1966484904, now seen corresponding path program 1 times [2021-10-13 07:27:03,974 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:27:03,975 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [179156758] [2021-10-13 07:27:03,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:27:03,975 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:27:03,976 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2393f825-6487-46f6-b1ba-06fb99c9c0d9/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:27:03,977 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2393f825-6487-46f6-b1ba-06fb99c9c0d9/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:27:03,981 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2393f825-6487-46f6-b1ba-06fb99c9c0d9/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-13 07:27:04,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:27:04,134 INFO L263 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 07:27:04,138 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:27:04,610 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 53 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:27:04,610 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:27:05,151 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 53 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:27:05,152 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:27:05,152 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [179156758] [2021-10-13 07:27:05,153 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [179156758] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 07:27:05,153 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:27:05,153 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-10-13 07:27:05,153 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [919372637] [2021-10-13 07:27:05,155 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 07:27:05,157 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:27:05,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 07:27:05,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 07:27:05,160 INFO L87 Difference]: Start difference. First operand 538 states and 826 transitions. Second operand has 4 states, 4 states have (on average 46.75) internal successors, (187), 3 states have internal predecessors, (187), 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 07:27:11,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:27:11,128 INFO L93 Difference]: Finished difference Result 2142 states and 3296 transitions. [2021-10-13 07:27:11,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 07:27:11,129 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 46.75) internal successors, (187), 3 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 121 [2021-10-13 07:27:11,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:27:11,142 INFO L225 Difference]: With dead ends: 2142 [2021-10-13 07:27:11,142 INFO L226 Difference]: Without dead ends: 1606 [2021-10-13 07:27:11,146 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 240 GetRequests, 238 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 07:27:11,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1606 states. [2021-10-13 07:27:11,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1606 to 1250. [2021-10-13 07:27:11,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1250 states, 1249 states have (on average 1.4043234587670137) internal successors, (1754), 1249 states have internal predecessors, (1754), 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 07:27:11,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1250 states to 1250 states and 1754 transitions. [2021-10-13 07:27:11,243 INFO L78 Accepts]: Start accepts. Automaton has 1250 states and 1754 transitions. Word has length 121 [2021-10-13 07:27:11,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:27:11,244 INFO L470 AbstractCegarLoop]: Abstraction has 1250 states and 1754 transitions. [2021-10-13 07:27:11,244 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 46.75) internal successors, (187), 3 states have internal predecessors, (187), 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 07:27:11,244 INFO L276 IsEmpty]: Start isEmpty. Operand 1250 states and 1754 transitions. [2021-10-13 07:27:11,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 286 [2021-10-13 07:27:11,257 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:27:11,258 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, 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, 1, 1, 1, 1, 1, 1, 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 07:27:11,279 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2393f825-6487-46f6-b1ba-06fb99c9c0d9/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2021-10-13 07:27:11,475 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2393f825-6487-46f6-b1ba-06fb99c9c0d9/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 07:27:11,479 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 07:27:11,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:27:11,480 INFO L82 PathProgramCache]: Analyzing trace with hash -364313522, now seen corresponding path program 1 times [2021-10-13 07:27:11,483 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:27:11,484 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [715297509] [2021-10-13 07:27:11,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:27:11,485 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:27:11,485 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2393f825-6487-46f6-b1ba-06fb99c9c0d9/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:27:11,488 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2393f825-6487-46f6-b1ba-06fb99c9c0d9/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:27:11,510 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2393f825-6487-46f6-b1ba-06fb99c9c0d9/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-13 07:27:11,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:27:11,816 INFO L263 TraceCheckSpWp]: Trace formula consists of 339 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 07:27:11,824 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:27:12,798 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 120 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2021-10-13 07:27:12,798 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:27:13,842 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 120 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2021-10-13 07:27:13,843 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:27:13,843 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [715297509] [2021-10-13 07:27:13,843 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [715297509] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 07:27:13,844 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:27:13,844 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-10-13 07:27:13,844 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [26765569] [2021-10-13 07:27:13,846 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 07:27:13,846 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:27:13,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 07:27:13,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 07:27:13,848 INFO L87 Difference]: Start difference. First operand 1250 states and 1754 transitions. Second operand has 4 states, 4 states have (on average 75.25) internal successors, (301), 3 states have internal predecessors, (301), 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 07:27:25,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:27:25,297 INFO L93 Difference]: Finished difference Result 3922 states and 5531 transitions. [2021-10-13 07:27:25,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 07:27:25,298 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 75.25) internal successors, (301), 3 states have internal predecessors, (301), 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 285 [2021-10-13 07:27:25,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:27:25,323 INFO L225 Difference]: With dead ends: 3922 [2021-10-13 07:27:25,323 INFO L226 Difference]: Without dead ends: 2674 [2021-10-13 07:27:25,326 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 568 GetRequests, 566 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 10.6ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 07:27:25,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2674 states. [2021-10-13 07:27:25,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2674 to 2496. [2021-10-13 07:27:25,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2496 states, 2495 states have (on average 1.2985971943887775) internal successors, (3240), 2495 states have internal predecessors, (3240), 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 07:27:25,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2496 states to 2496 states and 3240 transitions. [2021-10-13 07:27:25,417 INFO L78 Accepts]: Start accepts. Automaton has 2496 states and 3240 transitions. Word has length 285 [2021-10-13 07:27:25,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:27:25,418 INFO L470 AbstractCegarLoop]: Abstraction has 2496 states and 3240 transitions. [2021-10-13 07:27:25,418 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 75.25) internal successors, (301), 3 states have internal predecessors, (301), 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 07:27:25,419 INFO L276 IsEmpty]: Start isEmpty. Operand 2496 states and 3240 transitions. [2021-10-13 07:27:25,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 392 [2021-10-13 07:27:25,432 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:27:25,433 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, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:27:25,453 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2393f825-6487-46f6-b1ba-06fb99c9c0d9/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-10-13 07:27:25,649 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2393f825-6487-46f6-b1ba-06fb99c9c0d9/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 07:27:25,649 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 07:27:25,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:27:25,650 INFO L82 PathProgramCache]: Analyzing trace with hash 748430345, now seen corresponding path program 1 times [2021-10-13 07:27:25,653 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:27:25,653 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [644624870] [2021-10-13 07:27:25,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:27:25,653 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:27:25,653 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2393f825-6487-46f6-b1ba-06fb99c9c0d9/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:27:25,656 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2393f825-6487-46f6-b1ba-06fb99c9c0d9/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:27:25,657 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2393f825-6487-46f6-b1ba-06fb99c9c0d9/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-10-13 07:27:26,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:27:26,115 INFO L263 TraceCheckSpWp]: Trace formula consists of 452 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-13 07:27:26,146 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:27:28,111 INFO L134 CoverageAnalysis]: Checked inductivity of 427 backedges. 269 proven. 0 refuted. 0 times theorem prover too weak. 158 trivial. 0 not checked. [2021-10-13 07:27:28,111 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:27:30,118 INFO L134 CoverageAnalysis]: Checked inductivity of 427 backedges. 269 proven. 0 refuted. 0 times theorem prover too weak. 158 trivial. 0 not checked. [2021-10-13 07:27:30,119 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:27:30,119 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [644624870] [2021-10-13 07:27:30,119 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [644624870] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 07:27:30,120 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:27:30,120 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2021-10-13 07:27:30,120 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1667342382] [2021-10-13 07:27:30,122 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-13 07:27:30,122 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:27:30,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-13 07:27:30,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-10-13 07:27:30,124 INFO L87 Difference]: Start difference. First operand 2496 states and 3240 transitions. Second operand has 6 states, 6 states have (on average 61.666666666666664) internal successors, (370), 5 states have internal predecessors, (370), 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 07:27:37,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:27:37,301 INFO L93 Difference]: Finished difference Result 5226 states and 6828 transitions. [2021-10-13 07:27:37,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-13 07:27:37,302 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 61.666666666666664) internal successors, (370), 5 states have internal predecessors, (370), 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 391 [2021-10-13 07:27:37,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:27:37,322 INFO L225 Difference]: With dead ends: 5226 [2021-10-13 07:27:37,322 INFO L226 Difference]: Without dead ends: 2852 [2021-10-13 07:27:37,326 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 780 GetRequests, 776 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 52.5ms TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-10-13 07:27:37,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2852 states. [2021-10-13 07:27:37,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2852 to 2496. [2021-10-13 07:27:37,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2496 states, 2495 states have (on average 1.1210420841683366) internal successors, (2797), 2495 states have internal predecessors, (2797), 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 07:27:37,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2496 states to 2496 states and 2797 transitions. [2021-10-13 07:27:37,404 INFO L78 Accepts]: Start accepts. Automaton has 2496 states and 2797 transitions. Word has length 391 [2021-10-13 07:27:37,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:27:37,405 INFO L470 AbstractCegarLoop]: Abstraction has 2496 states and 2797 transitions. [2021-10-13 07:27:37,406 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 61.666666666666664) internal successors, (370), 5 states have internal predecessors, (370), 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 07:27:37,406 INFO L276 IsEmpty]: Start isEmpty. Operand 2496 states and 2797 transitions. [2021-10-13 07:27:37,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 583 [2021-10-13 07:27:37,430 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:27:37,431 INFO L512 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2021-10-13 07:27:37,453 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2393f825-6487-46f6-b1ba-06fb99c9c0d9/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-10-13 07:27:37,648 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2393f825-6487-46f6-b1ba-06fb99c9c0d9/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 07:27:37,649 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 07:27:37,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:27:37,650 INFO L82 PathProgramCache]: Analyzing trace with hash -1075634657, now seen corresponding path program 1 times [2021-10-13 07:27:37,653 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:27:37,653 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1646350169] [2021-10-13 07:27:37,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:27:37,653 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:27:37,654 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2393f825-6487-46f6-b1ba-06fb99c9c0d9/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:27:37,655 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2393f825-6487-46f6-b1ba-06fb99c9c0d9/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:27:37,656 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2393f825-6487-46f6-b1ba-06fb99c9c0d9/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-10-13 07:27:38,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:27:38,466 INFO L263 TraceCheckSpWp]: Trace formula consists of 658 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-13 07:27:38,476 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:27:41,309 INFO L134 CoverageAnalysis]: Checked inductivity of 1107 backedges. 732 proven. 0 refuted. 0 times theorem prover too weak. 375 trivial. 0 not checked. [2021-10-13 07:27:41,309 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:27:45,383 INFO L134 CoverageAnalysis]: Checked inductivity of 1107 backedges. 627 proven. 105 refuted. 0 times theorem prover too weak. 375 trivial. 0 not checked. [2021-10-13 07:27:45,383 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:27:45,384 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1646350169] [2021-10-13 07:27:45,384 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1646350169] provided 1 perfect and 1 imperfect interpolant sequences [2021-10-13 07:27:45,384 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-13 07:27:45,385 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2021-10-13 07:27:45,385 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1154352802] [2021-10-13 07:27:45,387 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 07:27:45,387 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:27:45,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 07:27:45,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-10-13 07:27:45,388 INFO L87 Difference]: Start difference. First operand 2496 states and 2797 transitions. Second operand has 4 states, 4 states have (on average 96.75) internal successors, (387), 3 states have internal predecessors, (387), 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 07:27:47,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:27:47,334 INFO L93 Difference]: Finished difference Result 4990 states and 5594 transitions. [2021-10-13 07:27:47,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 07:27:47,335 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 96.75) internal successors, (387), 3 states have internal predecessors, (387), 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 582 [2021-10-13 07:27:47,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:27:47,352 INFO L225 Difference]: With dead ends: 4990 [2021-10-13 07:27:47,352 INFO L226 Difference]: Without dead ends: 2674 [2021-10-13 07:27:47,356 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 1162 GetRequests, 1158 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 48.7ms TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-10-13 07:27:47,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2674 states. [2021-10-13 07:27:47,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2674 to 2674. [2021-10-13 07:27:47,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2674 states, 2673 states have (on average 1.1137298915076692) internal successors, (2977), 2673 states have internal predecessors, (2977), 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 07:27:47,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2674 states to 2674 states and 2977 transitions. [2021-10-13 07:27:47,456 INFO L78 Accepts]: Start accepts. Automaton has 2674 states and 2977 transitions. Word has length 582 [2021-10-13 07:27:47,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:27:47,457 INFO L470 AbstractCegarLoop]: Abstraction has 2674 states and 2977 transitions. [2021-10-13 07:27:47,458 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 96.75) internal successors, (387), 3 states have internal predecessors, (387), 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 07:27:47,458 INFO L276 IsEmpty]: Start isEmpty. Operand 2674 states and 2977 transitions. [2021-10-13 07:27:47,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 704 [2021-10-13 07:27:47,475 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:27:47,475 INFO L512 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:27:47,494 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2393f825-6487-46f6-b1ba-06fb99c9c0d9/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (6)] Ended with exit code 0 [2021-10-13 07:27:47,690 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2393f825-6487-46f6-b1ba-06fb99c9c0d9/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 07:27:47,691 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 07:27:47,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:27:47,691 INFO L82 PathProgramCache]: Analyzing trace with hash -1702225629, now seen corresponding path program 1 times [2021-10-13 07:27:47,697 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:27:47,698 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [601952970] [2021-10-13 07:27:47,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:27:47,698 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:27:47,699 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2393f825-6487-46f6-b1ba-06fb99c9c0d9/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:27:47,700 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2393f825-6487-46f6-b1ba-06fb99c9c0d9/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:27:47,747 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2393f825-6487-46f6-b1ba-06fb99c9c0d9/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-10-13 07:27:49,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:27:49,041 INFO L263 TraceCheckSpWp]: Trace formula consists of 792 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-13 07:27:49,050 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:27:52,340 INFO L134 CoverageAnalysis]: Checked inductivity of 1728 backedges. 993 proven. 347 refuted. 0 times theorem prover too weak. 388 trivial. 0 not checked. [2021-10-13 07:27:52,340 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:27:57,988 INFO L134 CoverageAnalysis]: Checked inductivity of 1728 backedges. 1340 proven. 0 refuted. 0 times theorem prover too weak. 388 trivial. 0 not checked. [2021-10-13 07:27:57,989 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:27:57,989 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [601952970] [2021-10-13 07:27:57,989 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [601952970] provided 1 perfect and 1 imperfect interpolant sequences [2021-10-13 07:27:57,989 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-13 07:27:57,990 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2021-10-13 07:27:57,991 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1559905604] [2021-10-13 07:27:57,992 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 07:27:57,992 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:27:57,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 07:27:57,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-13 07:27:57,994 INFO L87 Difference]: Start difference. First operand 2674 states and 2977 transitions. Second operand has 3 states, 3 states have (on average 124.33333333333333) internal successors, (373), 3 states have internal predecessors, (373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:28:02,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:28:02,347 INFO L93 Difference]: Finished difference Result 5524 states and 6203 transitions. [2021-10-13 07:28:02,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 07:28:02,348 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 124.33333333333333) internal successors, (373), 3 states have internal predecessors, (373), 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 703 [2021-10-13 07:28:02,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:28:02,368 INFO L225 Difference]: With dead ends: 5524 [2021-10-13 07:28:02,369 INFO L226 Difference]: Without dead ends: 3208 [2021-10-13 07:28:02,373 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 1404 GetRequests, 1401 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 37.2ms TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-13 07:28:02,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3208 states. [2021-10-13 07:28:02,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3208 to 3030. [2021-10-13 07:28:02,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3030 states, 3029 states have (on average 1.1000330141961043) internal successors, (3332), 3029 states have internal predecessors, (3332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:28:02,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3030 states to 3030 states and 3332 transitions. [2021-10-13 07:28:02,479 INFO L78 Accepts]: Start accepts. Automaton has 3030 states and 3332 transitions. Word has length 703 [2021-10-13 07:28:02,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:28:02,480 INFO L470 AbstractCegarLoop]: Abstraction has 3030 states and 3332 transitions. [2021-10-13 07:28:02,480 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 124.33333333333333) internal successors, (373), 3 states have internal predecessors, (373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:28:02,481 INFO L276 IsEmpty]: Start isEmpty. Operand 3030 states and 3332 transitions. [2021-10-13 07:28:02,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 917 [2021-10-13 07:28:02,495 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:28:02,496 INFO L512 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 6, 6, 6, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:28:02,516 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2393f825-6487-46f6-b1ba-06fb99c9c0d9/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-10-13 07:28:02,716 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2393f825-6487-46f6-b1ba-06fb99c9c0d9/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 07:28:02,716 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 07:28:02,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:28:02,717 INFO L82 PathProgramCache]: Analyzing trace with hash -43188647, now seen corresponding path program 1 times [2021-10-13 07:28:02,721 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:28:02,721 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [19311822] [2021-10-13 07:28:02,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:28:02,721 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:28:02,721 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2393f825-6487-46f6-b1ba-06fb99c9c0d9/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:28:02,722 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2393f825-6487-46f6-b1ba-06fb99c9c0d9/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:28:02,723 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2393f825-6487-46f6-b1ba-06fb99c9c0d9/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-10-13 07:28:04,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:28:04,359 INFO L263 TraceCheckSpWp]: Trace formula consists of 1020 conjuncts, 14 conjunts are in the unsatisfiable core [2021-10-13 07:28:04,372 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:28:13,523 INFO L134 CoverageAnalysis]: Checked inductivity of 2825 backedges. 1659 proven. 420 refuted. 0 times theorem prover too weak. 746 trivial. 0 not checked. [2021-10-13 07:28:13,524 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:28:40,865 INFO L134 CoverageAnalysis]: Checked inductivity of 2825 backedges. 2079 proven. 0 refuted. 0 times theorem prover too weak. 746 trivial. 0 not checked. [2021-10-13 07:28:40,865 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:28:40,865 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [19311822] [2021-10-13 07:28:40,866 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [19311822] provided 1 perfect and 1 imperfect interpolant sequences [2021-10-13 07:28:40,866 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-13 07:28:40,867 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [10] total 19 [2021-10-13 07:28:40,867 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [22277736] [2021-10-13 07:28:40,868 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-13 07:28:40,868 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:28:40,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-13 07:28:40,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=127, Invalid=215, Unknown=0, NotChecked=0, Total=342 [2021-10-13 07:28:40,871 INFO L87 Difference]: Start difference. First operand 3030 states and 3332 transitions. Second operand has 10 states, 10 states have (on average 54.7) internal successors, (547), 10 states have internal predecessors, (547), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:28:46,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:28:46,202 INFO L93 Difference]: Finished difference Result 5866 states and 6468 transitions. [2021-10-13 07:28:46,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-13 07:28:46,203 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 54.7) internal successors, (547), 10 states have internal predecessors, (547), 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 916 [2021-10-13 07:28:46,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:28:46,219 INFO L225 Difference]: With dead ends: 5866 [2021-10-13 07:28:46,219 INFO L226 Difference]: Without dead ends: 3007 [2021-10-13 07:28:46,223 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 1830 GetRequests, 1813 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 723.4ms TimeCoverageRelationStatistics Valid=127, Invalid=215, Unknown=0, NotChecked=0, Total=342 [2021-10-13 07:28:46,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3007 states. [2021-10-13 07:28:46,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3007 to 3007. [2021-10-13 07:28:46,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3007 states, 3006 states have (on average 1.092814371257485) internal successors, (3285), 3006 states have internal predecessors, (3285), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:28:46,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3007 states to 3007 states and 3285 transitions. [2021-10-13 07:28:46,310 INFO L78 Accepts]: Start accepts. Automaton has 3007 states and 3285 transitions. Word has length 916 [2021-10-13 07:28:46,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:28:46,312 INFO L470 AbstractCegarLoop]: Abstraction has 3007 states and 3285 transitions. [2021-10-13 07:28:46,313 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 54.7) internal successors, (547), 10 states have internal predecessors, (547), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:28:46,313 INFO L276 IsEmpty]: Start isEmpty. Operand 3007 states and 3285 transitions. [2021-10-13 07:28:46,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 985 [2021-10-13 07:28:46,328 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:28:46,329 INFO L512 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:28:46,361 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2393f825-6487-46f6-b1ba-06fb99c9c0d9/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-10-13 07:28:46,561 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2393f825-6487-46f6-b1ba-06fb99c9c0d9/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 07:28:46,561 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 07:28:46,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:28:46,562 INFO L82 PathProgramCache]: Analyzing trace with hash -480566493, now seen corresponding path program 1 times [2021-10-13 07:28:46,567 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:28:46,567 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [676326475] [2021-10-13 07:28:46,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:28:46,567 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:28:46,568 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2393f825-6487-46f6-b1ba-06fb99c9c0d9/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:28:46,569 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2393f825-6487-46f6-b1ba-06fb99c9c0d9/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:28:46,571 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2393f825-6487-46f6-b1ba-06fb99c9c0d9/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-10-13 07:28:50,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:28:50,115 INFO L263 TraceCheckSpWp]: Trace formula consists of 1088 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-13 07:28:50,125 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:28:53,959 INFO L134 CoverageAnalysis]: Checked inductivity of 3094 backedges. 1604 proven. 898 refuted. 0 times theorem prover too weak. 592 trivial. 0 not checked. [2021-10-13 07:28:53,960 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:29:00,436 INFO L134 CoverageAnalysis]: Checked inductivity of 3094 backedges. 2082 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2021-10-13 07:29:00,436 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:29:00,437 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [676326475] [2021-10-13 07:29:00,437 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [676326475] provided 1 perfect and 1 imperfect interpolant sequences [2021-10-13 07:29:00,437 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-13 07:29:00,438 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2021-10-13 07:29:00,438 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [206963871] [2021-10-13 07:29:00,440 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 07:29:00,440 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:29:00,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 07:29:00,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-10-13 07:29:00,442 INFO L87 Difference]: Start difference. First operand 3007 states and 3285 transitions. Second operand has 3 states, 3 states have (on average 156.33333333333334) internal successors, (469), 3 states have internal predecessors, (469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:29:05,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:29:05,927 INFO L93 Difference]: Finished difference Result 6368 states and 6994 transitions. [2021-10-13 07:29:05,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 07:29:05,928 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 156.33333333333334) internal successors, (469), 3 states have internal predecessors, (469), 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 984 [2021-10-13 07:29:05,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:29:05,948 INFO L225 Difference]: With dead ends: 6368 [2021-10-13 07:29:05,948 INFO L226 Difference]: Without dead ends: 3541 [2021-10-13 07:29:05,952 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 1966 GetRequests, 1962 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 48.1ms TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-10-13 07:29:05,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3541 states. [2021-10-13 07:29:06,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3541 to 3541. [2021-10-13 07:29:06,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3541 states, 3540 states have (on average 1.0966101694915253) internal successors, (3882), 3540 states have internal predecessors, (3882), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:29:06,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3541 states to 3541 states and 3882 transitions. [2021-10-13 07:29:06,038 INFO L78 Accepts]: Start accepts. Automaton has 3541 states and 3882 transitions. Word has length 984 [2021-10-13 07:29:06,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:29:06,040 INFO L470 AbstractCegarLoop]: Abstraction has 3541 states and 3882 transitions. [2021-10-13 07:29:06,040 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 156.33333333333334) internal successors, (469), 3 states have internal predecessors, (469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:29:06,040 INFO L276 IsEmpty]: Start isEmpty. Operand 3541 states and 3882 transitions. [2021-10-13 07:29:06,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 994 [2021-10-13 07:29:06,055 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:29:06,056 INFO L512 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 7, 7, 7, 6, 6, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:29:06,088 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2393f825-6487-46f6-b1ba-06fb99c9c0d9/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-10-13 07:29:06,269 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2393f825-6487-46f6-b1ba-06fb99c9c0d9/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 07:29:06,270 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 07:29:06,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:29:06,270 INFO L82 PathProgramCache]: Analyzing trace with hash -873614941, now seen corresponding path program 1 times [2021-10-13 07:29:06,274 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:29:06,274 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1487891383] [2021-10-13 07:29:06,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:29:06,275 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:29:06,275 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2393f825-6487-46f6-b1ba-06fb99c9c0d9/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:29:06,275 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2393f825-6487-46f6-b1ba-06fb99c9c0d9/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:29:06,276 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2393f825-6487-46f6-b1ba-06fb99c9c0d9/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-10-13 07:29:10,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:29:10,266 INFO L263 TraceCheckSpWp]: Trace formula consists of 1106 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-13 07:29:10,276 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:29:12,632 INFO L134 CoverageAnalysis]: Checked inductivity of 3479 backedges. 1993 proven. 0 refuted. 0 times theorem prover too weak. 1486 trivial. 0 not checked. [2021-10-13 07:29:12,632 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:29:15,371 INFO L134 CoverageAnalysis]: Checked inductivity of 3479 backedges. 1993 proven. 0 refuted. 0 times theorem prover too weak. 1486 trivial. 0 not checked. [2021-10-13 07:29:15,372 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:29:15,372 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1487891383] [2021-10-13 07:29:15,372 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1487891383] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 07:29:15,372 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:29:15,373 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-13 07:29:15,373 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [9804524] [2021-10-13 07:29:15,375 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 07:29:15,375 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:29:15,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 07:29:15,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 07:29:15,376 INFO L87 Difference]: Start difference. First operand 3541 states and 3882 transitions. Second operand has 4 states, 4 states have (on average 117.25) internal successors, (469), 4 states have internal predecessors, (469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:29:18,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:29:18,953 INFO L93 Difference]: Finished difference Result 7258 states and 7992 transitions. [2021-10-13 07:29:18,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 07:29:18,954 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 117.25) internal successors, (469), 4 states have internal predecessors, (469), 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 993 [2021-10-13 07:29:18,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:29:18,975 INFO L225 Difference]: With dead ends: 7258 [2021-10-13 07:29:18,975 INFO L226 Difference]: Without dead ends: 3897 [2021-10-13 07:29:18,979 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 1984 GetRequests, 1982 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 20.0ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 07:29:18,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3897 states. [2021-10-13 07:29:19,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3897 to 3719. [2021-10-13 07:29:19,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3719 states, 3718 states have (on average 1.0914470145239377) internal successors, (4058), 3718 states have internal predecessors, (4058), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:29:19,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3719 states to 3719 states and 4058 transitions. [2021-10-13 07:29:19,063 INFO L78 Accepts]: Start accepts. Automaton has 3719 states and 4058 transitions. Word has length 993 [2021-10-13 07:29:19,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:29:19,064 INFO L470 AbstractCegarLoop]: Abstraction has 3719 states and 4058 transitions. [2021-10-13 07:29:19,065 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 117.25) internal successors, (469), 4 states have internal predecessors, (469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:29:19,065 INFO L276 IsEmpty]: Start isEmpty. Operand 3719 states and 4058 transitions. [2021-10-13 07:29:19,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1003 [2021-10-13 07:29:19,098 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:29:19,098 INFO L512 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 7, 7, 6, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:29:19,130 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2393f825-6487-46f6-b1ba-06fb99c9c0d9/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-10-13 07:29:19,313 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2393f825-6487-46f6-b1ba-06fb99c9c0d9/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 07:29:19,314 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 07:29:19,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:29:19,315 INFO L82 PathProgramCache]: Analyzing trace with hash -1736210218, now seen corresponding path program 1 times [2021-10-13 07:29:19,320 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:29:19,320 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [728044371] [2021-10-13 07:29:19,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:29:19,320 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:29:19,321 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2393f825-6487-46f6-b1ba-06fb99c9c0d9/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:29:19,322 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2393f825-6487-46f6-b1ba-06fb99c9c0d9/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:29:19,326 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2393f825-6487-46f6-b1ba-06fb99c9c0d9/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-10-13 07:29:23,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:29:23,970 INFO L263 TraceCheckSpWp]: Trace formula consists of 1117 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-13 07:29:23,986 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:29:27,636 INFO L134 CoverageAnalysis]: Checked inductivity of 3541 backedges. 1203 proven. 1913 refuted. 0 times theorem prover too weak. 425 trivial. 0 not checked. [2021-10-13 07:29:27,636 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:29:43,173 INFO L134 CoverageAnalysis]: Checked inductivity of 3541 backedges. 2324 proven. 219 refuted. 0 times theorem prover too weak. 998 trivial. 0 not checked. [2021-10-13 07:29:43,173 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:29:43,173 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [728044371] [2021-10-13 07:29:43,173 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [728044371] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-13 07:29:43,173 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1094869598] [2021-10-13 07:29:43,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:29:43,174 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-13 07:29:43,174 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2393f825-6487-46f6-b1ba-06fb99c9c0d9/bin/utaipan-q2qaUkNPG8/cvc4 [2021-10-13 07:29:43,175 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2393f825-6487-46f6-b1ba-06fb99c9c0d9/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-13 07:29:43,176 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2393f825-6487-46f6-b1ba-06fb99c9c0d9/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (12)] Waiting until timeout for monitored process [2021-10-13 07:29:50,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:29:50,529 INFO L263 TraceCheckSpWp]: Trace formula consists of 1117 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-13 07:29:50,541 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:29:54,047 INFO L134 CoverageAnalysis]: Checked inductivity of 3541 backedges. 1595 proven. 100 refuted. 0 times theorem prover too weak. 1846 trivial. 0 not checked. [2021-10-13 07:29:54,047 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:29:57,766 INFO L134 CoverageAnalysis]: Checked inductivity of 3541 backedges. 1647 proven. 48 refuted. 0 times theorem prover too weak. 1846 trivial. 0 not checked. [2021-10-13 07:29:57,767 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1094869598] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-13 07:29:57,767 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [938932650] [2021-10-13 07:29:57,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:29:57,768 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 07:29:57,768 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2393f825-6487-46f6-b1ba-06fb99c9c0d9/bin/utaipan-q2qaUkNPG8/z3 [2021-10-13 07:29:57,769 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2393f825-6487-46f6-b1ba-06fb99c9c0d9/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 07:29:57,770 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2393f825-6487-46f6-b1ba-06fb99c9c0d9/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2021-10-13 07:30:05,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:30:05,144 INFO L263 TraceCheckSpWp]: Trace formula consists of 1117 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-13 07:30:05,162 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:30:09,121 INFO L134 CoverageAnalysis]: Checked inductivity of 3541 backedges. 1370 proven. 354 refuted. 0 times theorem prover too weak. 1817 trivial. 0 not checked. [2021-10-13 07:30:09,121 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:30:12,737 INFO L134 CoverageAnalysis]: Checked inductivity of 3541 backedges. 1370 proven. 354 refuted. 0 times theorem prover too weak. 1817 trivial. 0 not checked. [2021-10-13 07:30:12,738 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [938932650] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-13 07:30:12,738 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2021-10-13 07:30:12,740 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 7, 7, 4, 4] total 21 [2021-10-13 07:30:12,740 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [683696943] [2021-10-13 07:30:12,744 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-10-13 07:30:12,744 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:30:12,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-10-13 07:30:12,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=339, Unknown=0, NotChecked=0, Total=420 [2021-10-13 07:30:12,746 INFO L87 Difference]: Start difference. First operand 3719 states and 4058 transitions. Second operand has 21 states, 21 states have (on average 69.33333333333333) internal successors, (1456), 21 states have internal predecessors, (1456), 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 07:34:23,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:34:23,398 INFO L93 Difference]: Finished difference Result 12441 states and 13659 transitions. [2021-10-13 07:34:23,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-10-13 07:34:23,411 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 69.33333333333333) internal successors, (1456), 21 states have internal predecessors, (1456), 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 1002 [2021-10-13 07:34:23,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:34:23,413 INFO L225 Difference]: With dead ends: 12441 [2021-10-13 07:34:23,413 INFO L226 Difference]: Without dead ends: 0 [2021-10-13 07:34:23,424 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 6047 GetRequests, 6005 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 369 ImplicationChecksByTransitivity, 26504.6ms TimeCoverageRelationStatistics Valid=378, Invalid=1514, Unknown=0, NotChecked=0, Total=1892 [2021-10-13 07:34:23,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-13 07:34:23,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-13 07:34:23,425 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 07:34:23,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-13 07:34:23,425 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 1002 [2021-10-13 07:34:23,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:34:23,426 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-13 07:34:23,427 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 69.33333333333333) internal successors, (1456), 21 states have internal predecessors, (1456), 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 07:34:23,427 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-13 07:34:23,428 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-13 07:34:23,431 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 07:34:23,467 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2393f825-6487-46f6-b1ba-06fb99c9c0d9/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-10-13 07:34:23,709 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2393f825-6487-46f6-b1ba-06fb99c9c0d9/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2021-10-13 07:34:23,871 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2393f825-6487-46f6-b1ba-06fb99c9c0d9/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (12)] Forceful destruction successful, exit code 0 [2021-10-13 07:34:24,058 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2393f825-6487-46f6-b1ba-06fb99c9c0d9/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2393f825-6487-46f6-b1ba-06fb99c9c0d9/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2393f825-6487-46f6-b1ba-06fb99c9c0d9/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt [2021-10-13 07:34:24,060 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-13 07:34:24,064 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:34:24,659 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:34:24,660 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:34:35,057 WARN L207 SmtUtils]: Spent 10.14 s on a formula simplification. DAG size of input: 145 DAG size of output: 59 [2021-10-13 07:34:45,040 WARN L207 SmtUtils]: Spent 9.98 s on a formula simplification. DAG size of input: 145 DAG size of output: 59 [2021-10-13 07:34:45,043 INFO L857 garLoopResultBuilder]: For program point L762(lines 762 880) no Hoare annotation was computed. [2021-10-13 07:34:45,043 INFO L857 garLoopResultBuilder]: For program point L895(line 895) no Hoare annotation was computed. [2021-10-13 07:34:45,044 INFO L857 garLoopResultBuilder]: For program point L829(lines 829 880) no Hoare annotation was computed. [2021-10-13 07:34:45,044 INFO L857 garLoopResultBuilder]: For program point L631(lines 631 880) no Hoare annotation was computed. [2021-10-13 07:34:45,044 INFO L857 garLoopResultBuilder]: For program point L565(lines 565 880) no Hoare annotation was computed. [2021-10-13 07:34:45,044 INFO L857 garLoopResultBuilder]: For program point L169-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 07:34:45,044 INFO L857 garLoopResultBuilder]: For program point L103-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 07:34:45,045 INFO L857 garLoopResultBuilder]: For program point L37-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 07:34:45,045 INFO L857 garLoopResultBuilder]: For program point L698(lines 698 880) no Hoare annotation was computed. [2021-10-13 07:34:45,045 INFO L857 garLoopResultBuilder]: For program point L500(lines 500 880) no Hoare annotation was computed. [2021-10-13 07:34:45,045 INFO L857 garLoopResultBuilder]: For program point L170(line 170) no Hoare annotation was computed. [2021-10-13 07:34:45,045 INFO L857 garLoopResultBuilder]: For program point L104(line 104) no Hoare annotation was computed. [2021-10-13 07:34:45,045 INFO L857 garLoopResultBuilder]: For program point L38(line 38) no Hoare annotation was computed. [2021-10-13 07:34:45,045 INFO L857 garLoopResultBuilder]: For program point L369(lines 369 880) no Hoare annotation was computed. [2021-10-13 07:34:45,045 INFO L857 garLoopResultBuilder]: For program point L303(lines 303 880) no Hoare annotation was computed. [2021-10-13 07:34:45,045 INFO L857 garLoopResultBuilder]: For program point L436(lines 436 880) no Hoare annotation was computed. [2021-10-13 07:34:45,045 INFO L857 garLoopResultBuilder]: For program point L172-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 07:34:45,046 INFO L857 garLoopResultBuilder]: For program point L106-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 07:34:45,046 INFO L857 garLoopResultBuilder]: For program point L40-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 07:34:45,046 INFO L857 garLoopResultBuilder]: For program point L239(lines 239 880) no Hoare annotation was computed. [2021-10-13 07:34:45,046 INFO L857 garLoopResultBuilder]: For program point L173(line 173) no Hoare annotation was computed. [2021-10-13 07:34:45,046 INFO L857 garLoopResultBuilder]: For program point L107(line 107) no Hoare annotation was computed. [2021-10-13 07:34:45,046 INFO L857 garLoopResultBuilder]: For program point L41(line 41) no Hoare annotation was computed. [2021-10-13 07:34:45,046 INFO L857 garLoopResultBuilder]: For program point L768(lines 768 880) no Hoare annotation was computed. [2021-10-13 07:34:45,046 INFO L857 garLoopResultBuilder]: For program point L636(lines 636 880) no Hoare annotation was computed. [2021-10-13 07:34:45,046 INFO L857 garLoopResultBuilder]: For program point L835(lines 835 880) no Hoare annotation was computed. [2021-10-13 07:34:45,046 INFO L857 garLoopResultBuilder]: For program point L571(lines 571 880) no Hoare annotation was computed. [2021-10-13 07:34:45,046 INFO L857 garLoopResultBuilder]: For program point L505(lines 505 880) no Hoare annotation was computed. [2021-10-13 07:34:45,047 INFO L857 garLoopResultBuilder]: For program point L175-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 07:34:45,047 INFO L857 garLoopResultBuilder]: For program point L109-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 07:34:45,047 INFO L857 garLoopResultBuilder]: For program point L43-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 07:34:45,047 INFO L857 garLoopResultBuilder]: For program point L704(lines 704 880) no Hoare annotation was computed. [2021-10-13 07:34:45,047 INFO L857 garLoopResultBuilder]: For program point L176(line 176) no Hoare annotation was computed. [2021-10-13 07:34:45,047 INFO L857 garLoopResultBuilder]: For program point L110(line 110) no Hoare annotation was computed. [2021-10-13 07:34:45,047 INFO L857 garLoopResultBuilder]: For program point L44(line 44) no Hoare annotation was computed. [2021-10-13 07:34:45,047 INFO L857 garLoopResultBuilder]: For program point L309(lines 309 880) no Hoare annotation was computed. [2021-10-13 07:34:45,047 INFO L857 garLoopResultBuilder]: For program point L442(lines 442 880) no Hoare annotation was computed. [2021-10-13 07:34:45,047 INFO L857 garLoopResultBuilder]: For program point L376(lines 376 880) no Hoare annotation was computed. [2021-10-13 07:34:45,048 INFO L857 garLoopResultBuilder]: For program point L178-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 07:34:45,048 INFO L857 garLoopResultBuilder]: For program point L112-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 07:34:45,048 INFO L857 garLoopResultBuilder]: For program point L46-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 07:34:45,048 INFO L857 garLoopResultBuilder]: For program point L245(lines 245 880) no Hoare annotation was computed. [2021-10-13 07:34:45,048 INFO L857 garLoopResultBuilder]: For program point L179(line 179) no Hoare annotation was computed. [2021-10-13 07:34:45,048 INFO L857 garLoopResultBuilder]: For program point L113(line 113) no Hoare annotation was computed. [2021-10-13 07:34:45,048 INFO L857 garLoopResultBuilder]: For program point L47(line 47) no Hoare annotation was computed. [2021-10-13 07:34:45,049 INFO L857 garLoopResultBuilder]: For program point L774(lines 774 880) no Hoare annotation was computed. [2021-10-13 07:34:45,049 INFO L857 garLoopResultBuilder]: For program point L642(lines 642 880) no Hoare annotation was computed. [2021-10-13 07:34:45,049 INFO L857 garLoopResultBuilder]: For program point L510(lines 510 880) no Hoare annotation was computed. [2021-10-13 07:34:45,049 INFO L857 garLoopResultBuilder]: For program point L841(lines 841 880) no Hoare annotation was computed. [2021-10-13 07:34:45,049 INFO L857 garLoopResultBuilder]: For program point L181-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 07:34:45,050 INFO L857 garLoopResultBuilder]: For program point L115-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 07:34:45,050 INFO L857 garLoopResultBuilder]: For program point L49-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 07:34:45,050 INFO L857 garLoopResultBuilder]: For program point L710(lines 710 880) no Hoare annotation was computed. [2021-10-13 07:34:45,050 INFO L857 garLoopResultBuilder]: For program point L578(lines 578 880) no Hoare annotation was computed. [2021-10-13 07:34:45,050 INFO L857 garLoopResultBuilder]: For program point L182(line 182) no Hoare annotation was computed. [2021-10-13 07:34:45,051 INFO L857 garLoopResultBuilder]: For program point L116(line 116) no Hoare annotation was computed. [2021-10-13 07:34:45,051 INFO L857 garLoopResultBuilder]: For program point L50(line 50) no Hoare annotation was computed. [2021-10-13 07:34:45,051 INFO L857 garLoopResultBuilder]: For program point L315(lines 315 880) no Hoare annotation was computed. [2021-10-13 07:34:45,051 INFO L857 garLoopResultBuilder]: For program point L448(lines 448 880) no Hoare annotation was computed. [2021-10-13 07:34:45,051 INFO L857 garLoopResultBuilder]: For program point L382(lines 382 880) no Hoare annotation was computed. [2021-10-13 07:34:45,052 INFO L857 garLoopResultBuilder]: For program point L184-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 07:34:45,052 INFO L857 garLoopResultBuilder]: For program point L118-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 07:34:45,061 INFO L857 garLoopResultBuilder]: For program point L52-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 07:34:45,062 INFO L857 garLoopResultBuilder]: For program point L251(lines 251 880) no Hoare annotation was computed. [2021-10-13 07:34:45,062 INFO L857 garLoopResultBuilder]: For program point L185(line 185) no Hoare annotation was computed. [2021-10-13 07:34:45,062 INFO L857 garLoopResultBuilder]: For program point L119(line 119) no Hoare annotation was computed. [2021-10-13 07:34:45,062 INFO L857 garLoopResultBuilder]: For program point L53(line 53) no Hoare annotation was computed. [2021-10-13 07:34:45,062 INFO L857 garLoopResultBuilder]: For program point L648(lines 648 880) no Hoare annotation was computed. [2021-10-13 07:34:45,062 INFO L857 garLoopResultBuilder]: For program point L516(lines 516 880) no Hoare annotation was computed. [2021-10-13 07:34:45,062 INFO L857 garLoopResultBuilder]: For program point L847(lines 847 880) no Hoare annotation was computed. [2021-10-13 07:34:45,062 INFO L857 garLoopResultBuilder]: For program point L781(lines 781 880) no Hoare annotation was computed. [2021-10-13 07:34:45,062 INFO L857 garLoopResultBuilder]: For program point L583(lines 583 880) no Hoare annotation was computed. [2021-10-13 07:34:45,063 INFO L857 garLoopResultBuilder]: For program point L187-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 07:34:45,063 INFO L857 garLoopResultBuilder]: For program point L121-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 07:34:45,063 INFO L857 garLoopResultBuilder]: For program point L55-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 07:34:45,063 INFO L857 garLoopResultBuilder]: For program point L716(lines 716 880) no Hoare annotation was computed. [2021-10-13 07:34:45,063 INFO L857 garLoopResultBuilder]: For program point L188(line 188) no Hoare annotation was computed. [2021-10-13 07:34:45,063 INFO L857 garLoopResultBuilder]: For program point L122(line 122) no Hoare annotation was computed. [2021-10-13 07:34:45,064 INFO L857 garLoopResultBuilder]: For program point L56(line 56) no Hoare annotation was computed. [2021-10-13 07:34:45,064 INFO L857 garLoopResultBuilder]: For program point L321(lines 321 880) no Hoare annotation was computed. [2021-10-13 07:34:45,064 INFO L857 garLoopResultBuilder]: For program point L454(lines 454 880) no Hoare annotation was computed. [2021-10-13 07:34:45,064 INFO L857 garLoopResultBuilder]: For program point L388(lines 388 880) no Hoare annotation was computed. [2021-10-13 07:34:45,064 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-13 07:34:45,064 INFO L857 garLoopResultBuilder]: For program point L190-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 07:34:45,064 INFO L857 garLoopResultBuilder]: For program point L124-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 07:34:45,064 INFO L857 garLoopResultBuilder]: For program point L58-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 07:34:45,064 INFO L857 garLoopResultBuilder]: For program point L257(lines 257 880) no Hoare annotation was computed. [2021-10-13 07:34:45,064 INFO L857 garLoopResultBuilder]: For program point L191(line 191) no Hoare annotation was computed. [2021-10-13 07:34:45,064 INFO L857 garLoopResultBuilder]: For program point L125(line 125) no Hoare annotation was computed. [2021-10-13 07:34:45,065 INFO L857 garLoopResultBuilder]: For program point L59(line 59) no Hoare annotation was computed. [2021-10-13 07:34:45,065 INFO L857 garLoopResultBuilder]: For program point L852(lines 852 880) no Hoare annotation was computed. [2021-10-13 07:34:45,065 INFO L857 garLoopResultBuilder]: For program point L654(lines 654 880) no Hoare annotation was computed. [2021-10-13 07:34:45,065 INFO L857 garLoopResultBuilder]: For program point L522(lines 522 880) no Hoare annotation was computed. [2021-10-13 07:34:45,065 INFO L857 garLoopResultBuilder]: For program point L787(lines 787 880) no Hoare annotation was computed. [2021-10-13 07:34:45,065 INFO L857 garLoopResultBuilder]: For program point L589(lines 589 880) no Hoare annotation was computed. [2021-10-13 07:34:45,065 INFO L857 garLoopResultBuilder]: For program point L193-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 07:34:45,065 INFO L857 garLoopResultBuilder]: For program point L127-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 07:34:45,065 INFO L857 garLoopResultBuilder]: For program point L61-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 07:34:45,065 INFO L857 garLoopResultBuilder]: For program point L722(lines 722 880) no Hoare annotation was computed. [2021-10-13 07:34:45,066 INFO L857 garLoopResultBuilder]: For program point L194(line 194) no Hoare annotation was computed. [2021-10-13 07:34:45,066 INFO L857 garLoopResultBuilder]: For program point L128(line 128) no Hoare annotation was computed. [2021-10-13 07:34:45,066 INFO L857 garLoopResultBuilder]: For program point L62(line 62) no Hoare annotation was computed. [2021-10-13 07:34:45,066 INFO L857 garLoopResultBuilder]: For program point L459(lines 459 880) no Hoare annotation was computed. [2021-10-13 07:34:45,066 INFO L857 garLoopResultBuilder]: For program point L327(lines 327 880) no Hoare annotation was computed. [2021-10-13 07:34:45,066 INFO L857 garLoopResultBuilder]: For program point L394(lines 394 880) no Hoare annotation was computed. [2021-10-13 07:34:45,066 INFO L857 garLoopResultBuilder]: For program point L262(lines 262 880) no Hoare annotation was computed. [2021-10-13 07:34:45,066 INFO L857 garLoopResultBuilder]: For program point L196-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 07:34:45,066 INFO L857 garLoopResultBuilder]: For program point L130-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 07:34:45,066 INFO L857 garLoopResultBuilder]: For program point L64-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 07:34:45,066 INFO L857 garLoopResultBuilder]: For program point L197(line 197) no Hoare annotation was computed. [2021-10-13 07:34:45,067 INFO L857 garLoopResultBuilder]: For program point L131(line 131) no Hoare annotation was computed. [2021-10-13 07:34:45,067 INFO L857 garLoopResultBuilder]: For program point L65(line 65) no Hoare annotation was computed. [2021-10-13 07:34:45,067 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-10-13 07:34:45,067 INFO L857 garLoopResultBuilder]: For program point L858(lines 858 880) no Hoare annotation was computed. [2021-10-13 07:34:45,067 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 182) no Hoare annotation was computed. [2021-10-13 07:34:45,067 INFO L857 garLoopResultBuilder]: For program point L660(lines 660 880) no Hoare annotation was computed. [2021-10-13 07:34:45,067 INFO L857 garLoopResultBuilder]: For program point L528(lines 528 880) no Hoare annotation was computed. [2021-10-13 07:34:45,067 INFO L857 garLoopResultBuilder]: For program point L793(lines 793 880) no Hoare annotation was computed. [2021-10-13 07:34:45,067 INFO L857 garLoopResultBuilder]: For program point L595(lines 595 880) no Hoare annotation was computed. [2021-10-13 07:34:45,067 INFO L857 garLoopResultBuilder]: For program point L199-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 07:34:45,067 INFO L857 garLoopResultBuilder]: For program point L133-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 07:34:45,068 INFO L857 garLoopResultBuilder]: For program point L67-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 07:34:45,068 INFO L857 garLoopResultBuilder]: For program point L728(lines 728 880) no Hoare annotation was computed. [2021-10-13 07:34:45,068 INFO L857 garLoopResultBuilder]: For program point L464(lines 464 880) no Hoare annotation was computed. [2021-10-13 07:34:45,068 INFO L857 garLoopResultBuilder]: For program point L200(line 200) no Hoare annotation was computed. [2021-10-13 07:34:45,068 INFO L857 garLoopResultBuilder]: For program point L134(line 134) no Hoare annotation was computed. [2021-10-13 07:34:45,068 INFO L857 garLoopResultBuilder]: For program point L68(line 68) no Hoare annotation was computed. [2021-10-13 07:34:45,068 INFO L857 garLoopResultBuilder]: For program point L333(lines 333 880) no Hoare annotation was computed. [2021-10-13 07:34:45,068 INFO L857 garLoopResultBuilder]: For program point L400(lines 400 880) no Hoare annotation was computed. [2021-10-13 07:34:45,068 INFO L857 garLoopResultBuilder]: For program point L268(lines 268 880) no Hoare annotation was computed. [2021-10-13 07:34:45,068 INFO L857 garLoopResultBuilder]: For program point L202-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 07:34:45,068 INFO L857 garLoopResultBuilder]: For program point L136-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 07:34:45,068 INFO L857 garLoopResultBuilder]: For program point L70-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 07:34:45,069 INFO L857 garLoopResultBuilder]: For program point L203(line 203) no Hoare annotation was computed. [2021-10-13 07:34:45,069 INFO L857 garLoopResultBuilder]: For program point L137(line 137) no Hoare annotation was computed. [2021-10-13 07:34:45,069 INFO L857 garLoopResultBuilder]: For program point L71(line 71) no Hoare annotation was computed. [2021-10-13 07:34:45,069 INFO L857 garLoopResultBuilder]: For program point L864(lines 864 880) no Hoare annotation was computed. [2021-10-13 07:34:45,069 INFO L857 garLoopResultBuilder]: For program point L666(lines 666 880) no Hoare annotation was computed. [2021-10-13 07:34:45,069 INFO L857 garLoopResultBuilder]: For program point L534(lines 534 880) no Hoare annotation was computed. [2021-10-13 07:34:45,069 INFO L857 garLoopResultBuilder]: For program point L799(lines 799 880) no Hoare annotation was computed. [2021-10-13 07:34:45,069 INFO L857 garLoopResultBuilder]: For program point L601(lines 601 880) no Hoare annotation was computed. [2021-10-13 07:34:45,069 INFO L857 garLoopResultBuilder]: For program point L205-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 07:34:45,069 INFO L857 garLoopResultBuilder]: For program point L139-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 07:34:45,069 INFO L857 garLoopResultBuilder]: For program point L73-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 07:34:45,070 INFO L857 garLoopResultBuilder]: For program point L734(lines 734 880) no Hoare annotation was computed. [2021-10-13 07:34:45,070 INFO L857 garLoopResultBuilder]: For program point L470(lines 470 880) no Hoare annotation was computed. [2021-10-13 07:34:45,070 INFO L857 garLoopResultBuilder]: For program point L206(line 206) no Hoare annotation was computed. [2021-10-13 07:34:45,070 INFO L857 garLoopResultBuilder]: For program point L140(line 140) no Hoare annotation was computed. [2021-10-13 07:34:45,070 INFO L857 garLoopResultBuilder]: For program point L74(line 74) no Hoare annotation was computed. [2021-10-13 07:34:45,070 INFO L857 garLoopResultBuilder]: For program point L339(lines 339 880) no Hoare annotation was computed. [2021-10-13 07:34:45,070 INFO L857 garLoopResultBuilder]: For program point L406(lines 406 880) no Hoare annotation was computed. [2021-10-13 07:34:45,070 INFO L857 garLoopResultBuilder]: For program point L274(lines 274 880) no Hoare annotation was computed. [2021-10-13 07:34:45,070 INFO L857 garLoopResultBuilder]: For program point L208-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 07:34:45,070 INFO L857 garLoopResultBuilder]: For program point L142-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 07:34:45,070 INFO L857 garLoopResultBuilder]: For program point L76-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 07:34:45,070 INFO L857 garLoopResultBuilder]: For program point L869(lines 869 880) no Hoare annotation was computed. [2021-10-13 07:34:45,071 INFO L857 garLoopResultBuilder]: For program point L209(line 209) no Hoare annotation was computed. [2021-10-13 07:34:45,071 INFO L857 garLoopResultBuilder]: For program point L143(line 143) no Hoare annotation was computed. [2021-10-13 07:34:45,071 INFO L857 garLoopResultBuilder]: For program point L77(line 77) no Hoare annotation was computed. [2021-10-13 07:34:45,071 INFO L857 garLoopResultBuilder]: For program point L672(lines 672 880) no Hoare annotation was computed. [2021-10-13 07:34:45,071 INFO L857 garLoopResultBuilder]: For program point L540(lines 540 880) no Hoare annotation was computed. [2021-10-13 07:34:45,071 INFO L857 garLoopResultBuilder]: For program point L805(lines 805 880) no Hoare annotation was computed. [2021-10-13 07:34:45,071 INFO L857 garLoopResultBuilder]: For program point L607(lines 607 880) no Hoare annotation was computed. [2021-10-13 07:34:45,071 INFO L857 garLoopResultBuilder]: For program point L211-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 07:34:45,071 INFO L857 garLoopResultBuilder]: For program point L145-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 07:34:45,071 INFO L857 garLoopResultBuilder]: For program point L79-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 07:34:45,071 INFO L857 garLoopResultBuilder]: For program point L740(lines 740 880) no Hoare annotation was computed. [2021-10-13 07:34:45,071 INFO L857 garLoopResultBuilder]: For program point L212(line 212) no Hoare annotation was computed. [2021-10-13 07:34:45,072 INFO L857 garLoopResultBuilder]: For program point L146(line 146) no Hoare annotation was computed. [2021-10-13 07:34:45,072 INFO L857 garLoopResultBuilder]: For program point L80(line 80) no Hoare annotation was computed. [2021-10-13 07:34:45,072 INFO L857 garLoopResultBuilder]: For program point L477(lines 477 880) no Hoare annotation was computed. [2021-10-13 07:34:45,072 INFO L857 garLoopResultBuilder]: For program point L345(lines 345 880) no Hoare annotation was computed. [2021-10-13 07:34:45,072 INFO L857 garLoopResultBuilder]: For program point L279(lines 279 880) no Hoare annotation was computed. [2021-10-13 07:34:45,072 INFO L857 garLoopResultBuilder]: For program point L412(lines 412 880) no Hoare annotation was computed. [2021-10-13 07:34:45,072 INFO L857 garLoopResultBuilder]: For program point L148-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 07:34:45,072 INFO L857 garLoopResultBuilder]: For program point L82-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 07:34:45,072 INFO L857 garLoopResultBuilder]: For program point L875(lines 875 880) no Hoare annotation was computed. [2021-10-13 07:34:45,072 INFO L857 garLoopResultBuilder]: For program point L149(line 149) no Hoare annotation was computed. [2021-10-13 07:34:45,072 INFO L857 garLoopResultBuilder]: For program point L83(line 83) no Hoare annotation was computed. [2021-10-13 07:34:45,073 INFO L857 garLoopResultBuilder]: For program point L678(lines 678 880) no Hoare annotation was computed. [2021-10-13 07:34:45,073 INFO L857 garLoopResultBuilder]: For program point L546(lines 546 880) no Hoare annotation was computed. [2021-10-13 07:34:45,073 INFO L857 garLoopResultBuilder]: For program point L811(lines 811 880) no Hoare annotation was computed. [2021-10-13 07:34:45,073 INFO L857 garLoopResultBuilder]: For program point L745(lines 745 880) no Hoare annotation was computed. [2021-10-13 07:34:45,073 INFO L857 garLoopResultBuilder]: For program point L613(lines 613 880) no Hoare annotation was computed. [2021-10-13 07:34:45,073 INFO L857 garLoopResultBuilder]: For program point L151-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 07:34:45,073 INFO L857 garLoopResultBuilder]: For program point L85-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 07:34:45,082 INFO L857 garLoopResultBuilder]: For program point L482(lines 482 880) no Hoare annotation was computed. [2021-10-13 07:34:45,083 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-13 07:34:45,083 INFO L857 garLoopResultBuilder]: For program point L152(line 152) no Hoare annotation was computed. [2021-10-13 07:34:45,084 INFO L857 garLoopResultBuilder]: For program point L86(line 86) no Hoare annotation was computed. [2021-10-13 07:34:45,084 INFO L857 garLoopResultBuilder]: For program point L351(lines 351 880) no Hoare annotation was computed. [2021-10-13 07:34:45,084 INFO L857 garLoopResultBuilder]: For program point L285(lines 285 880) no Hoare annotation was computed. [2021-10-13 07:34:45,084 INFO L857 garLoopResultBuilder]: For program point L418(lines 418 880) no Hoare annotation was computed. [2021-10-13 07:34:45,084 INFO L857 garLoopResultBuilder]: For program point L154-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 07:34:45,085 INFO L857 garLoopResultBuilder]: For program point L88-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 07:34:45,087 INFO L853 garLoopResultBuilder]: At program point L881(lines 30 882) the Hoare annotation is: (let ((.cse6 (= (_ bv6 32) ~a21~0)) (.cse7 (bvsle ~a12~0 (_ bv4294967253 32))) (.cse9 (not (bvslt (_ bv80 32) ~a12~0))) (.cse8 (= (_ bv8 32) ~a15~0))) (let ((.cse1 (or .cse9 (not .cse8))) (.cse4 (= (_ bv5 32) ~a15~0)) (.cse5 (bvsle (bvadd (_ bv4294761287 32) (bvsdiv (bvmul (bvsdiv (bvadd (_ bv366333 32) ~a12~0) (_ bv5 32)) (_ bv4294967290 32)) (_ bv10 32))) (_ bv4294967253 32))) (.cse2 (not .cse7)) (.cse0 (not (= ~a21~0 (_ bv9 32)))) (.cse10 (not .cse6)) (.cse3 (= (_ bv1 32) ~a24~0))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse1 (not .cse4) .cse2 .cse3) (and .cse4 .cse5 .cse6 .cse7) (and .cse0 .cse5 .cse3 (bvsle (bvadd (_ bv4294761287 32) (bvsdiv (bvmul ~a12~0 (_ bv4294967290 32)) (_ bv10 32))) (_ bv4294967253 32)) .cse8) (and .cse9 .cse2 .cse3) (and (or .cse10 (not (= ~a15~0 (_ bv9 32)))) .cse3 (not (bvslt (_ bv11 32) ~a12~0))) (and .cse0 (not (= (_ bv10 32) ~a21~0)) .cse10 (not (= (_ bv7 32) ~a21~0)) .cse3)))) [2021-10-13 07:34:45,087 INFO L857 garLoopResultBuilder]: For program point L551(lines 551 880) no Hoare annotation was computed. [2021-10-13 07:34:45,088 INFO L857 garLoopResultBuilder]: For program point L221(lines 221 880) no Hoare annotation was computed. [2021-10-13 07:34:45,088 INFO L857 garLoopResultBuilder]: For program point L155(line 155) no Hoare annotation was computed. [2021-10-13 07:34:45,088 INFO L857 garLoopResultBuilder]: For program point L89(line 89) no Hoare annotation was computed. [2021-10-13 07:34:45,088 INFO L857 garLoopResultBuilder]: For program point L684(lines 684 880) no Hoare annotation was computed. [2021-10-13 07:34:45,088 INFO L857 garLoopResultBuilder]: For program point L817(lines 817 880) no Hoare annotation was computed. [2021-10-13 07:34:45,089 INFO L857 garLoopResultBuilder]: For program point L751(lines 751 880) no Hoare annotation was computed. [2021-10-13 07:34:45,089 INFO L857 garLoopResultBuilder]: For program point L619(lines 619 880) no Hoare annotation was computed. [2021-10-13 07:34:45,089 INFO L857 garLoopResultBuilder]: For program point L157-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 07:34:45,089 INFO L857 garLoopResultBuilder]: For program point L91-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 07:34:45,089 INFO L860 garLoopResultBuilder]: At program point L884(lines 884 900) the Hoare annotation is: true [2021-10-13 07:34:45,090 INFO L857 garLoopResultBuilder]: For program point L488(lines 488 880) no Hoare annotation was computed. [2021-10-13 07:34:45,090 INFO L857 garLoopResultBuilder]: For program point L290(lines 290 880) no Hoare annotation was computed. [2021-10-13 07:34:45,090 INFO L857 garLoopResultBuilder]: For program point L158(line 158) no Hoare annotation was computed. [2021-10-13 07:34:45,090 INFO L857 garLoopResultBuilder]: For program point L92(line 92) no Hoare annotation was computed. [2021-10-13 07:34:45,091 INFO L857 garLoopResultBuilder]: For program point L687(lines 687 880) no Hoare annotation was computed. [2021-10-13 07:34:45,091 INFO L857 garLoopResultBuilder]: For program point L357(lines 357 880) no Hoare annotation was computed. [2021-10-13 07:34:45,091 INFO L857 garLoopResultBuilder]: For program point L424(lines 424 880) no Hoare annotation was computed. [2021-10-13 07:34:45,091 INFO L857 garLoopResultBuilder]: For program point L160-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 07:34:45,091 INFO L857 garLoopResultBuilder]: For program point L94-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 07:34:45,092 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-13 07:34:45,092 INFO L857 garLoopResultBuilder]: For program point L557(lines 557 880) no Hoare annotation was computed. [2021-10-13 07:34:45,092 INFO L857 garLoopResultBuilder]: For program point L227(lines 227 880) no Hoare annotation was computed. [2021-10-13 07:34:45,092 INFO L857 garLoopResultBuilder]: For program point L161(line 161) no Hoare annotation was computed. [2021-10-13 07:34:45,092 INFO L857 garLoopResultBuilder]: For program point L95(line 95) no Hoare annotation was computed. [2021-10-13 07:34:45,093 INFO L857 garLoopResultBuilder]: For program point L757(lines 757 880) no Hoare annotation was computed. [2021-10-13 07:34:45,093 INFO L857 garLoopResultBuilder]: For program point L625(lines 625 880) no Hoare annotation was computed. [2021-10-13 07:34:45,093 INFO L857 garLoopResultBuilder]: For program point L163-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 07:34:45,093 INFO L857 garLoopResultBuilder]: For program point L97-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 07:34:45,093 INFO L857 garLoopResultBuilder]: For program point L31(lines 31 33) no Hoare annotation was computed. [2021-10-13 07:34:45,093 INFO L857 garLoopResultBuilder]: For program point L31-2(lines 30 882) no Hoare annotation was computed. [2021-10-13 07:34:45,094 INFO L857 garLoopResultBuilder]: For program point L824(lines 824 880) no Hoare annotation was computed. [2021-10-13 07:34:45,094 INFO L853 garLoopResultBuilder]: At program point L890-2(lines 890 899) the Hoare annotation is: (let ((.cse6 (= (_ bv6 32) ~a21~0)) (.cse7 (bvsle ~a12~0 (_ bv4294967253 32))) (.cse9 (not (bvslt (_ bv80 32) ~a12~0))) (.cse8 (= (_ bv8 32) ~a15~0))) (let ((.cse1 (or .cse9 (not .cse8))) (.cse4 (= (_ bv5 32) ~a15~0)) (.cse5 (bvsle (bvadd (_ bv4294761287 32) (bvsdiv (bvmul (bvsdiv (bvadd (_ bv366333 32) ~a12~0) (_ bv5 32)) (_ bv4294967290 32)) (_ bv10 32))) (_ bv4294967253 32))) (.cse2 (not .cse7)) (.cse0 (not (= ~a21~0 (_ bv9 32)))) (.cse10 (not .cse6)) (.cse3 (= (_ bv1 32) ~a24~0))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse1 (not .cse4) .cse2 .cse3) (and .cse4 .cse5 .cse6 .cse7) (and .cse0 .cse5 .cse3 (bvsle (bvadd (_ bv4294761287 32) (bvsdiv (bvmul ~a12~0 (_ bv4294967290 32)) (_ bv10 32))) (_ bv4294967253 32)) .cse8) (and .cse9 .cse2 .cse3) (and (or .cse10 (not (= ~a15~0 (_ bv9 32)))) .cse3 (not (bvslt (_ bv11 32) ~a12~0))) (and .cse0 (not (= (_ bv10 32) ~a21~0)) .cse10 (not (= (_ bv7 32) ~a21~0)) .cse3)))) [2021-10-13 07:34:45,094 INFO L857 garLoopResultBuilder]: For program point L494(lines 494 880) no Hoare annotation was computed. [2021-10-13 07:34:45,094 INFO L857 garLoopResultBuilder]: For program point L296(lines 296 880) no Hoare annotation was computed. [2021-10-13 07:34:45,095 INFO L857 garLoopResultBuilder]: For program point L164(line 164) no Hoare annotation was computed. [2021-10-13 07:34:45,095 INFO L857 garLoopResultBuilder]: For program point L98(line 98) no Hoare annotation was computed. [2021-10-13 07:34:45,095 INFO L857 garLoopResultBuilder]: For program point L32(line 32) no Hoare annotation was computed. [2021-10-13 07:34:45,095 INFO L857 garLoopResultBuilder]: For program point L693(lines 693 880) no Hoare annotation was computed. [2021-10-13 07:34:45,095 INFO L857 garLoopResultBuilder]: For program point L363(lines 363 880) no Hoare annotation was computed. [2021-10-13 07:34:45,095 INFO L857 garLoopResultBuilder]: For program point L562(lines 562 880) no Hoare annotation was computed. [2021-10-13 07:34:45,096 INFO L857 garLoopResultBuilder]: For program point L430(lines 430 880) no Hoare annotation was computed. [2021-10-13 07:34:45,096 INFO L857 garLoopResultBuilder]: For program point L166-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 07:34:45,096 INFO L857 garLoopResultBuilder]: For program point L100-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 07:34:45,096 INFO L857 garLoopResultBuilder]: For program point L34-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 07:34:45,096 INFO L857 garLoopResultBuilder]: For program point L233(lines 233 880) no Hoare annotation was computed. [2021-10-13 07:34:45,097 INFO L857 garLoopResultBuilder]: For program point L167(line 167) no Hoare annotation was computed. [2021-10-13 07:34:45,097 INFO L857 garLoopResultBuilder]: For program point L101(line 101) no Hoare annotation was computed. [2021-10-13 07:34:45,097 INFO L857 garLoopResultBuilder]: For program point L35(line 35) no Hoare annotation was computed. [2021-10-13 07:34:45,102 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-13 07:34:45,137 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 07:34:45 BoogieIcfgContainer [2021-10-13 07:34:45,138 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-13 07:34:45,138 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-13 07:34:45,138 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-13 07:34:45,139 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-13 07:34:45,139 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:26:56" (3/4) ... [2021-10-13 07:34:45,142 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-13 07:34:45,172 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2021-10-13 07:34:45,174 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-10-13 07:34:45,176 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-13 07:34:45,178 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-13 07:34:45,357 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2393f825-6487-46f6-b1ba-06fb99c9c0d9/bin/utaipan-q2qaUkNPG8/witness.graphml [2021-10-13 07:34:45,357 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-13 07:34:45,359 INFO L168 Benchmark]: Toolchain (without parser) took 474623.24 ms. Allocated memory was 56.6 MB in the beginning and 474.0 MB in the end (delta: 417.3 MB). Free memory was 32.8 MB in the beginning and 139.0 MB in the end (delta: -106.2 MB). Peak memory consumption was 310.0 MB. Max. memory is 16.1 GB. [2021-10-13 07:34:45,359 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 56.6 MB. Free memory is still 37.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 07:34:45,360 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1072.74 ms. Allocated memory was 56.6 MB in the beginning and 77.6 MB in the end (delta: 21.0 MB). Free memory was 32.6 MB in the beginning and 52.2 MB in the end (delta: -19.7 MB). Peak memory consumption was 17.2 MB. Max. memory is 16.1 GB. [2021-10-13 07:34:45,361 INFO L168 Benchmark]: Boogie Procedure Inliner took 130.31 ms. Allocated memory is still 77.6 MB. Free memory was 52.2 MB in the beginning and 45.9 MB in the end (delta: 6.4 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-13 07:34:45,361 INFO L168 Benchmark]: Boogie Preprocessor took 126.08 ms. Allocated memory is still 77.6 MB. Free memory was 45.9 MB in the beginning and 40.8 MB in the end (delta: 5.1 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-13 07:34:45,362 INFO L168 Benchmark]: RCFGBuilder took 4160.20 ms. Allocated memory was 77.6 MB in the beginning and 107.0 MB in the end (delta: 29.4 MB). Free memory was 40.8 MB in the beginning and 60.0 MB in the end (delta: -19.2 MB). Peak memory consumption was 12.1 MB. Max. memory is 16.1 GB. [2021-10-13 07:34:45,362 INFO L168 Benchmark]: TraceAbstraction took 468900.52 ms. Allocated memory was 107.0 MB in the beginning and 474.0 MB in the end (delta: 367.0 MB). Free memory was 59.5 MB in the beginning and 157.9 MB in the end (delta: -98.5 MB). Peak memory consumption was 349.2 MB. Max. memory is 16.1 GB. [2021-10-13 07:34:45,363 INFO L168 Benchmark]: Witness Printer took 219.25 ms. Allocated memory is still 474.0 MB. Free memory was 157.9 MB in the beginning and 139.0 MB in the end (delta: 18.9 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. [2021-10-13 07:34:45,365 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 56.6 MB. Free memory is still 37.8 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 1072.74 ms. Allocated memory was 56.6 MB in the beginning and 77.6 MB in the end (delta: 21.0 MB). Free memory was 32.6 MB in the beginning and 52.2 MB in the end (delta: -19.7 MB). Peak memory consumption was 17.2 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 130.31 ms. Allocated memory is still 77.6 MB. Free memory was 52.2 MB in the beginning and 45.9 MB in the end (delta: 6.4 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 126.08 ms. Allocated memory is still 77.6 MB. Free memory was 45.9 MB in the beginning and 40.8 MB in the end (delta: 5.1 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * RCFGBuilder took 4160.20 ms. Allocated memory was 77.6 MB in the beginning and 107.0 MB in the end (delta: 29.4 MB). Free memory was 40.8 MB in the beginning and 60.0 MB in the end (delta: -19.2 MB). Peak memory consumption was 12.1 MB. Max. memory is 16.1 GB. * TraceAbstraction took 468900.52 ms. Allocated memory was 107.0 MB in the beginning and 474.0 MB in the end (delta: 367.0 MB). Free memory was 59.5 MB in the beginning and 157.9 MB in the end (delta: -98.5 MB). Peak memory consumption was 349.2 MB. Max. memory is 16.1 GB. * Witness Printer took 219.25 ms. Allocated memory is still 474.0 MB. Free memory was 157.9 MB in the beginning and 139.0 MB in the end (delta: 18.9 MB). Peak memory consumption was 18.9 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: 182]: 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, 245 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 468784.4ms, OverallIterations: 10, TraceHistogramMax: 10, EmptinessCheckTime: 167.9ms, AutomataDifference: 302586.8ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 20984.6ms, InitialAbstractionConstructionTime: 20.8ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 713 SDtfs, 6106 SDslu, 294 SDs, 0 SdLazy, 18115 SolverSat, 1462 SolverUnsat, 7 SolverUnknown, 0 SolverNotchecked, 254060.8ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 16091 GetRequests, 16009 SyntacticMatches, 0 SemanticMatches, 82 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 459 ImplicationChecksByTransitivity, 27481.2ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=3719occurred in iteration=9, InterpolantAutomatonStates: 67, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 809.6ms AutomataMinimizationTime, 10 MinimizatonAttempts, 1246 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 122 NumberOfFragments, 297 HoareAnnotationTreeSize, 3 FomulaSimplifications, 5182 FormulaSimplificationTreeSizeReduction, 851.7ms HoareSimplificationTime, 3 FomulaSimplificationsInter, 6264 FormulaSimplificationTreeSizeReductionInter, 20124.0ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 453.2ms SsaConstructionTime, 3070.9ms SatisfiabilityAnalysisTime, 109774.5ms InterpolantComputationTime, 8037 NumberOfCodeBlocks, 8037 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 16050 ConstructedInterpolants, 0 QuantifiedInterpolants, 69493 SizeOfPredicates, 33 NumberOfNonLiveVariables, 9064 ConjunctsInSsa, 61 ConjunctsInUnsatCore, 24 InterpolantComputations, 14 PerfectInterpolantSequences, 42262/47020 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: 30]: Loop Invariant Derived loop invariant: ((((((((!(a21 == 9bv32) && (!~bvslt32(80bv32, a12) || !(8bv32 == a15))) && !~bvsle32(a12, 4294967253bv32)) && 1bv32 == a24) || ((((!~bvslt32(80bv32, a12) || !(8bv32 == a15)) && !(5bv32 == a15)) && !~bvsle32(a12, 4294967253bv32)) && 1bv32 == a24)) || (((5bv32 == a15 && ~bvsle32(~bvadd64(4294761287bv32, ~bvsdiv32(~bvmul32(~bvsdiv32(~bvadd64(366333bv32, a12), 5bv32), 4294967290bv32), 10bv32)), 4294967253bv32)) && 6bv32 == a21) && ~bvsle32(a12, 4294967253bv32))) || ((((!(a21 == 9bv32) && ~bvsle32(~bvadd64(4294761287bv32, ~bvsdiv32(~bvmul32(~bvsdiv32(~bvadd64(366333bv32, a12), 5bv32), 4294967290bv32), 10bv32)), 4294967253bv32)) && 1bv32 == a24) && ~bvsle32(~bvadd64(4294761287bv32, ~bvsdiv32(~bvmul32(a12, 4294967290bv32), 10bv32)), 4294967253bv32)) && 8bv32 == a15)) || ((!~bvslt32(80bv32, a12) && !~bvsle32(a12, 4294967253bv32)) && 1bv32 == a24)) || (((!(6bv32 == a21) || !(a15 == 9bv32)) && 1bv32 == a24) && !~bvslt32(11bv32, a12))) || ((((!(a21 == 9bv32) && !(10bv32 == a21)) && !(6bv32 == a21)) && !(7bv32 == a21)) && 1bv32 == a24) - InvariantResult [Line: 884]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 890]: Loop Invariant Derived loop invariant: ((((((((!(a21 == 9bv32) && (!~bvslt32(80bv32, a12) || !(8bv32 == a15))) && !~bvsle32(a12, 4294967253bv32)) && 1bv32 == a24) || ((((!~bvslt32(80bv32, a12) || !(8bv32 == a15)) && !(5bv32 == a15)) && !~bvsle32(a12, 4294967253bv32)) && 1bv32 == a24)) || (((5bv32 == a15 && ~bvsle32(~bvadd64(4294761287bv32, ~bvsdiv32(~bvmul32(~bvsdiv32(~bvadd64(366333bv32, a12), 5bv32), 4294967290bv32), 10bv32)), 4294967253bv32)) && 6bv32 == a21) && ~bvsle32(a12, 4294967253bv32))) || ((((!(a21 == 9bv32) && ~bvsle32(~bvadd64(4294761287bv32, ~bvsdiv32(~bvmul32(~bvsdiv32(~bvadd64(366333bv32, a12), 5bv32), 4294967290bv32), 10bv32)), 4294967253bv32)) && 1bv32 == a24) && ~bvsle32(~bvadd64(4294761287bv32, ~bvsdiv32(~bvmul32(a12, 4294967290bv32), 10bv32)), 4294967253bv32)) && 8bv32 == a15)) || ((!~bvslt32(80bv32, a12) && !~bvsle32(a12, 4294967253bv32)) && 1bv32 == a24)) || (((!(6bv32 == a21) || !(a15 == 9bv32)) && 1bv32 == a24) && !~bvslt32(11bv32, a12))) || ((((!(a21 == 9bv32) && !(10bv32 == a21)) && !(6bv32 == a21)) && !(7bv32 == a21)) && 1bv32 == a24) RESULT: Ultimate proved your program to be correct! [2021-10-13 07:34:45,498 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2393f825-6487-46f6-b1ba-06fb99c9c0d9/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...