./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test8-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96e032e9-1da1-4397-a2b4-29a69a238029/bin/utaipan-TEXQjIfE4P/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96e032e9-1da1-4397-a2b4-29a69a238029/bin/utaipan-TEXQjIfE4P/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96e032e9-1da1-4397-a2b4-29a69a238029/bin/utaipan-TEXQjIfE4P/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96e032e9-1da1-4397-a2b4-29a69a238029/bin/utaipan-TEXQjIfE4P/config/TaipanReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test8-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96e032e9-1da1-4397-a2b4-29a69a238029/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96e032e9-1da1-4397-a2b4-29a69a238029/bin/utaipan-TEXQjIfE4P --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 5eef0a1d7c251abc753eabb723fe850489bfd10ab147ced1a31e6821eaf88c98 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-21 01:36:15,823 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-21 01:36:15,825 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-21 01:36:15,877 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-21 01:36:15,877 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-21 01:36:15,879 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-21 01:36:15,880 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-21 01:36:15,882 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-21 01:36:15,884 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-21 01:36:15,885 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-21 01:36:15,887 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-21 01:36:15,888 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-21 01:36:15,889 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-21 01:36:15,890 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-21 01:36:15,891 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-21 01:36:15,893 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-21 01:36:15,894 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-21 01:36:15,895 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-21 01:36:15,898 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-21 01:36:15,900 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-21 01:36:15,902 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-21 01:36:15,903 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-21 01:36:15,905 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-21 01:36:15,906 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-21 01:36:15,910 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-21 01:36:15,910 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-21 01:36:15,910 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-21 01:36:15,912 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-21 01:36:15,912 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-21 01:36:15,913 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-21 01:36:15,914 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-21 01:36:15,915 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-21 01:36:15,916 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-21 01:36:15,917 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-21 01:36:15,918 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-21 01:36:15,919 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-21 01:36:15,919 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-21 01:36:15,920 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-21 01:36:15,920 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-21 01:36:15,921 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-21 01:36:15,922 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-21 01:36:15,924 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96e032e9-1da1-4397-a2b4-29a69a238029/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-21 01:36:15,966 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-21 01:36:15,967 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-21 01:36:15,967 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-21 01:36:15,967 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-21 01:36:15,976 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-21 01:36:15,977 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-21 01:36:15,977 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-21 01:36:15,977 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-21 01:36:15,977 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-21 01:36:15,977 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-21 01:36:15,978 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-21 01:36:15,979 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-21 01:36:15,979 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-21 01:36:15,979 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-21 01:36:15,979 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-21 01:36:15,979 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-21 01:36:15,980 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-21 01:36:15,980 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-21 01:36:15,981 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-21 01:36:15,981 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-21 01:36:15,981 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-21 01:36:15,982 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-21 01:36:15,982 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-21 01:36:15,982 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-21 01:36:15,982 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-21 01:36:15,983 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-21 01:36:15,984 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-21 01:36:15,984 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-21 01:36:15,984 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-21 01:36:15,985 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-21 01:36:15,985 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-21 01:36:15,985 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-21 01:36:15,985 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 01:36:15,986 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-21 01:36:15,986 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-21 01:36:15,986 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-21 01:36:15,986 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-21 01:36:15,986 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-21 01:36:15,986 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-21 01:36:15,987 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-21 01:36:15,987 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-21 01:36:15,987 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_96e032e9-1da1-4397-a2b4-29a69a238029/bin/utaipan-TEXQjIfE4P/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96e032e9-1da1-4397-a2b4-29a69a238029/bin/utaipan-TEXQjIfE4P Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5eef0a1d7c251abc753eabb723fe850489bfd10ab147ced1a31e6821eaf88c98 [2021-11-21 01:36:16,281 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-21 01:36:16,307 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-21 01:36:16,310 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-21 01:36:16,311 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-21 01:36:16,312 INFO L275 PluginConnector]: CDTParser initialized [2021-11-21 01:36:16,313 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96e032e9-1da1-4397-a2b4-29a69a238029/bin/utaipan-TEXQjIfE4P/../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test8-1.i [2021-11-21 01:36:16,381 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96e032e9-1da1-4397-a2b4-29a69a238029/bin/utaipan-TEXQjIfE4P/data/f0ad70f39/f6a710dbf06844d2bbcda601689e9cd6/FLAGbd04e2c83 [2021-11-21 01:36:17,009 INFO L306 CDTParser]: Found 1 translation units. [2021-11-21 01:36:17,009 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96e032e9-1da1-4397-a2b4-29a69a238029/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test8-1.i [2021-11-21 01:36:17,028 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96e032e9-1da1-4397-a2b4-29a69a238029/bin/utaipan-TEXQjIfE4P/data/f0ad70f39/f6a710dbf06844d2bbcda601689e9cd6/FLAGbd04e2c83 [2021-11-21 01:36:17,252 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96e032e9-1da1-4397-a2b4-29a69a238029/bin/utaipan-TEXQjIfE4P/data/f0ad70f39/f6a710dbf06844d2bbcda601689e9cd6 [2021-11-21 01:36:17,255 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-21 01:36:17,256 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-21 01:36:17,257 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-21 01:36:17,262 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-21 01:36:17,266 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-21 01:36:17,266 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 01:36:17" (1/1) ... [2021-11-21 01:36:17,269 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ddae269 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:36:17, skipping insertion in model container [2021-11-21 01:36:17,270 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 01:36:17" (1/1) ... [2021-11-21 01:36:17,277 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-21 01:36:17,357 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-21 01:36:17,890 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96e032e9-1da1-4397-a2b4-29a69a238029/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test8-1.i[33021,33034] [2021-11-21 01:36:18,035 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96e032e9-1da1-4397-a2b4-29a69a238029/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test8-1.i[45234,45247] [2021-11-21 01:36:18,043 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 01:36:18,051 INFO L203 MainTranslator]: Completed pre-run [2021-11-21 01:36:18,102 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96e032e9-1da1-4397-a2b4-29a69a238029/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test8-1.i[33021,33034] [2021-11-21 01:36:18,209 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96e032e9-1da1-4397-a2b4-29a69a238029/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test8-1.i[45234,45247] [2021-11-21 01:36:18,214 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 01:36:18,273 INFO L208 MainTranslator]: Completed translation [2021-11-21 01:36:18,273 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:36:18 WrapperNode [2021-11-21 01:36:18,273 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-21 01:36:18,274 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-21 01:36:18,275 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-21 01:36:18,275 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-21 01:36:18,282 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:36:18" (1/1) ... [2021-11-21 01:36:18,315 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:36:18" (1/1) ... [2021-11-21 01:36:18,400 INFO L137 Inliner]: procedures = 177, calls = 297, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 996 [2021-11-21 01:36:18,400 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-21 01:36:18,401 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-21 01:36:18,401 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-21 01:36:18,402 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-21 01:36:18,410 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:36:18" (1/1) ... [2021-11-21 01:36:18,410 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:36:18" (1/1) ... [2021-11-21 01:36:18,424 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:36:18" (1/1) ... [2021-11-21 01:36:18,424 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:36:18" (1/1) ... [2021-11-21 01:36:18,498 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:36:18" (1/1) ... [2021-11-21 01:36:18,514 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:36:18" (1/1) ... [2021-11-21 01:36:18,519 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:36:18" (1/1) ... [2021-11-21 01:36:18,528 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-21 01:36:18,529 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-21 01:36:18,529 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-21 01:36:18,530 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-21 01:36:18,531 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:36:18" (1/1) ... [2021-11-21 01:36:18,538 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 01:36:18,550 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96e032e9-1da1-4397-a2b4-29a69a238029/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:36:18,561 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96e032e9-1da1-4397-a2b4-29a69a238029/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-21 01:36:18,608 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96e032e9-1da1-4397-a2b4-29a69a238029/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-21 01:36:18,629 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-21 01:36:18,630 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-21 01:36:18,630 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-21 01:36:18,630 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-21 01:36:18,630 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-21 01:36:18,630 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-21 01:36:18,630 INFO L130 BoogieDeclarations]: Found specification of procedure test_int [2021-11-21 01:36:18,631 INFO L138 BoogieDeclarations]: Found implementation of procedure test_int [2021-11-21 01:36:18,631 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-21 01:36:18,631 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-21 01:36:18,631 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-21 01:36:18,631 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-21 01:36:18,632 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-21 01:36:18,632 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-21 01:36:18,632 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-21 01:36:18,632 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-21 01:36:18,632 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-21 01:36:18,633 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-21 01:36:18,879 INFO L236 CfgBuilder]: Building ICFG [2021-11-21 01:36:18,880 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-21 01:36:19,963 INFO L277 CfgBuilder]: Performing block encoding [2021-11-21 01:36:20,300 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-21 01:36:20,300 INFO L301 CfgBuilder]: Removed 62 assume(true) statements. [2021-11-21 01:36:20,303 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:36:20 BoogieIcfgContainer [2021-11-21 01:36:20,303 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-21 01:36:20,305 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-21 01:36:20,305 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-21 01:36:20,308 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-21 01:36:20,309 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 01:36:17" (1/3) ... [2021-11-21 01:36:20,309 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a4162d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 01:36:20, skipping insertion in model container [2021-11-21 01:36:20,310 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:36:18" (2/3) ... [2021-11-21 01:36:20,310 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a4162d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 01:36:20, skipping insertion in model container [2021-11-21 01:36:20,310 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:36:20" (3/3) ... [2021-11-21 01:36:20,312 INFO L111 eAbstractionObserver]: Analyzing ICFG uthash_OAT_test8-1.i [2021-11-21 01:36:20,317 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-21 01:36:20,317 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-11-21 01:36:20,379 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-21 01:36:20,390 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-21 01:36:20,390 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-11-21 01:36:20,446 INFO L276 IsEmpty]: Start isEmpty. Operand has 148 states, 122 states have (on average 1.7950819672131149) internal successors, (219), 139 states have internal predecessors, (219), 20 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (20), 6 states have call predecessors, (20), 20 states have call successors, (20) [2021-11-21 01:36:20,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-21 01:36:20,452 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:36:20,453 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:36:20,454 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:36:20,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:36:20,460 INFO L85 PathProgramCache]: Analyzing trace with hash -1967293167, now seen corresponding path program 1 times [2021-11-21 01:36:20,470 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:36:20,470 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1524186391] [2021-11-21 01:36:20,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:36:20,472 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:36:20,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:36:20,651 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:36:20,652 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:36:20,653 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1524186391] [2021-11-21 01:36:20,653 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1524186391] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:36:20,654 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:36:20,654 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-21 01:36:20,655 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1693767029] [2021-11-21 01:36:20,656 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:36:20,660 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-21 01:36:20,660 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:36:20,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-21 01:36:20,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-21 01:36:20,690 INFO L87 Difference]: Start difference. First operand has 148 states, 122 states have (on average 1.7950819672131149) internal successors, (219), 139 states have internal predecessors, (219), 20 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (20), 6 states have call predecessors, (20), 20 states have call successors, (20) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:36:21,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:36:21,029 INFO L93 Difference]: Finished difference Result 295 states and 534 transitions. [2021-11-21 01:36:21,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-21 01:36:21,032 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2021-11-21 01:36:21,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:36:21,043 INFO L225 Difference]: With dead ends: 295 [2021-11-21 01:36:21,043 INFO L226 Difference]: Without dead ends: 146 [2021-11-21 01:36:21,048 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-21 01:36:21,052 INFO L933 BasicCegarLoop]: 177 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 177 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-21 01:36:21,053 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 177 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-21 01:36:21,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2021-11-21 01:36:21,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 146. [2021-11-21 01:36:21,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146 states, 121 states have (on average 1.2727272727272727) internal successors, (154), 137 states have internal predecessors, (154), 20 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (20), 6 states have call predecessors, (20), 20 states have call successors, (20) [2021-11-21 01:36:21,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 194 transitions. [2021-11-21 01:36:21,108 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 194 transitions. Word has length 8 [2021-11-21 01:36:21,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:36:21,108 INFO L470 AbstractCegarLoop]: Abstraction has 146 states and 194 transitions. [2021-11-21 01:36:21,109 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:36:21,109 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 194 transitions. [2021-11-21 01:36:21,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-11-21 01:36:21,111 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:36:21,111 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:36:21,111 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-21 01:36:21,111 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:36:21,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:36:21,112 INFO L85 PathProgramCache]: Analyzing trace with hash 1767054038, now seen corresponding path program 1 times [2021-11-21 01:36:21,113 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:36:21,113 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1275497657] [2021-11-21 01:36:21,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:36:21,113 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:36:21,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:36:21,190 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:36:21,190 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:36:21,191 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1275497657] [2021-11-21 01:36:21,191 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1275497657] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:36:21,191 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:36:21,191 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 01:36:21,191 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1634435902] [2021-11-21 01:36:21,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:36:21,193 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 01:36:21,193 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:36:21,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 01:36:21,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 01:36:21,194 INFO L87 Difference]: Start difference. First operand 146 states and 194 transitions. Second operand has 4 states, 4 states have (on average 5.0) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:36:24,152 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-21 01:36:24,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:36:24,210 INFO L93 Difference]: Finished difference Result 293 states and 390 transitions. [2021-11-21 01:36:24,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 01:36:24,210 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2021-11-21 01:36:24,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:36:24,213 INFO L225 Difference]: With dead ends: 293 [2021-11-21 01:36:24,213 INFO L226 Difference]: Without dead ends: 202 [2021-11-21 01:36:24,215 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-21 01:36:24,216 INFO L933 BasicCegarLoop]: 169 mSDtfsCounter, 60 mSDsluCounter, 336 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 488 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2021-11-21 01:36:24,217 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [61 Valid, 488 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 98 Invalid, 1 Unknown, 0 Unchecked, 3.0s Time] [2021-11-21 01:36:24,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2021-11-21 01:36:24,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 148. [2021-11-21 01:36:24,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 123 states have (on average 1.2682926829268293) internal successors, (156), 139 states have internal predecessors, (156), 20 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (20), 6 states have call predecessors, (20), 20 states have call successors, (20) [2021-11-21 01:36:24,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 196 transitions. [2021-11-21 01:36:24,237 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 196 transitions. Word has length 20 [2021-11-21 01:36:24,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:36:24,238 INFO L470 AbstractCegarLoop]: Abstraction has 148 states and 196 transitions. [2021-11-21 01:36:24,238 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:36:24,238 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 196 transitions. [2021-11-21 01:36:24,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-11-21 01:36:24,240 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:36:24,240 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:36:24,240 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-21 01:36:24,240 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:36:24,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:36:24,241 INFO L85 PathProgramCache]: Analyzing trace with hash -430271198, now seen corresponding path program 1 times [2021-11-21 01:36:24,241 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:36:24,241 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [925224935] [2021-11-21 01:36:24,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:36:24,242 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:36:24,269 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-21 01:36:24,270 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1038430118] [2021-11-21 01:36:24,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:36:24,270 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:36:24,270 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96e032e9-1da1-4397-a2b4-29a69a238029/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:36:24,284 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96e032e9-1da1-4397-a2b4-29a69a238029/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 01:36:24,288 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96e032e9-1da1-4397-a2b4-29a69a238029/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-21 01:36:24,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:36:24,526 INFO L263 TraceCheckSpWp]: Trace formula consists of 170 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-21 01:36:24,533 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 01:36:24,669 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:36:24,669 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-21 01:36:24,669 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:36:24,670 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [925224935] [2021-11-21 01:36:24,670 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-21 01:36:24,670 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1038430118] [2021-11-21 01:36:24,670 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1038430118] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:36:24,671 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:36:24,671 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-21 01:36:24,671 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1299945982] [2021-11-21 01:36:24,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:36:24,672 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 01:36:24,672 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:36:24,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 01:36:24,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:36:24,673 INFO L87 Difference]: Start difference. First operand 148 states and 196 transitions. Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 2 states have internal predecessors, (30), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:36:27,089 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-21 01:36:27,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:36:27,123 INFO L93 Difference]: Finished difference Result 341 states and 444 transitions. [2021-11-21 01:36:27,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 01:36:27,126 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 2 states have internal predecessors, (30), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2021-11-21 01:36:27,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:36:27,129 INFO L225 Difference]: With dead ends: 341 [2021-11-21 01:36:27,129 INFO L226 Difference]: Without dead ends: 196 [2021-11-21 01:36:27,131 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:36:27,132 INFO L933 BasicCegarLoop]: 189 mSDtfsCounter, 45 mSDsluCounter, 166 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 343 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2021-11-21 01:36:27,133 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [48 Valid, 343 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 50 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2021-11-21 01:36:27,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2021-11-21 01:36:27,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 193. [2021-11-21 01:36:27,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 167 states have (on average 1.2275449101796407) internal successors, (205), 183 states have internal predecessors, (205), 21 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (21), 7 states have call predecessors, (21), 21 states have call successors, (21) [2021-11-21 01:36:27,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 247 transitions. [2021-11-21 01:36:27,154 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 247 transitions. Word has length 32 [2021-11-21 01:36:27,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:36:27,155 INFO L470 AbstractCegarLoop]: Abstraction has 193 states and 247 transitions. [2021-11-21 01:36:27,155 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 2 states have internal predecessors, (30), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:36:27,155 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 247 transitions. [2021-11-21 01:36:27,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-11-21 01:36:27,157 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:36:27,157 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:36:27,197 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96e032e9-1da1-4397-a2b4-29a69a238029/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-21 01:36:27,372 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96e032e9-1da1-4397-a2b4-29a69a238029/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:36:27,372 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:36:27,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:36:27,373 INFO L85 PathProgramCache]: Analyzing trace with hash 308571032, now seen corresponding path program 1 times [2021-11-21 01:36:27,373 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:36:27,374 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1555991771] [2021-11-21 01:36:27,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:36:27,374 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:36:27,393 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-21 01:36:27,394 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1595536503] [2021-11-21 01:36:27,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:36:27,394 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:36:27,394 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96e032e9-1da1-4397-a2b4-29a69a238029/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:36:27,416 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96e032e9-1da1-4397-a2b4-29a69a238029/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 01:36:27,448 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96e032e9-1da1-4397-a2b4-29a69a238029/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-21 01:36:28,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:36:28,231 INFO L263 TraceCheckSpWp]: Trace formula consists of 275 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-21 01:36:28,234 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 01:36:28,376 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:36:28,376 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-21 01:36:28,376 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:36:28,377 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1555991771] [2021-11-21 01:36:28,377 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-21 01:36:28,377 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1595536503] [2021-11-21 01:36:28,377 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1595536503] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:36:28,377 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:36:28,377 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 01:36:28,377 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [333763851] [2021-11-21 01:36:28,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:36:28,378 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 01:36:28,378 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:36:28,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 01:36:28,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 01:36:28,378 INFO L87 Difference]: Start difference. First operand 193 states and 247 transitions. Second operand has 4 states, 3 states have (on average 13.0) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-21 01:36:29,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:36:29,455 INFO L93 Difference]: Finished difference Result 372 states and 482 transitions. [2021-11-21 01:36:29,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 01:36:29,463 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 13.0) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 45 [2021-11-21 01:36:29,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:36:29,465 INFO L225 Difference]: With dead ends: 372 [2021-11-21 01:36:29,465 INFO L226 Difference]: Without dead ends: 195 [2021-11-21 01:36:29,466 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-21 01:36:29,467 INFO L933 BasicCegarLoop]: 174 mSDtfsCounter, 1 mSDsluCounter, 378 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 518 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-11-21 01:36:29,468 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 518 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-11-21 01:36:29,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states. [2021-11-21 01:36:29,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 195. [2021-11-21 01:36:29,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 195 states, 168 states have (on average 1.2321428571428572) internal successors, (207), 185 states have internal predecessors, (207), 21 states have call successors, (21), 3 states have call predecessors, (21), 4 states have return successors, (22), 7 states have call predecessors, (22), 21 states have call successors, (22) [2021-11-21 01:36:29,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 250 transitions. [2021-11-21 01:36:29,487 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 250 transitions. Word has length 45 [2021-11-21 01:36:29,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:36:29,488 INFO L470 AbstractCegarLoop]: Abstraction has 195 states and 250 transitions. [2021-11-21 01:36:29,488 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 13.0) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-21 01:36:29,488 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 250 transitions. [2021-11-21 01:36:29,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-11-21 01:36:29,490 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:36:29,490 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:36:29,522 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96e032e9-1da1-4397-a2b4-29a69a238029/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-21 01:36:29,704 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96e032e9-1da1-4397-a2b4-29a69a238029/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:36:29,704 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:36:29,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:36:29,705 INFO L85 PathProgramCache]: Analyzing trace with hash -282668078, now seen corresponding path program 1 times [2021-11-21 01:36:29,705 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:36:29,705 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1443297494] [2021-11-21 01:36:29,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:36:29,706 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:36:29,728 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-21 01:36:29,729 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1091931831] [2021-11-21 01:36:29,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:36:29,729 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:36:29,729 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96e032e9-1da1-4397-a2b4-29a69a238029/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:36:29,738 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96e032e9-1da1-4397-a2b4-29a69a238029/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 01:36:29,738 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96e032e9-1da1-4397-a2b4-29a69a238029/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-21 01:36:31,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:36:31,154 INFO L263 TraceCheckSpWp]: Trace formula consists of 287 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-21 01:36:31,158 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 01:36:31,267 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-21 01:36:31,267 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 01:36:31,444 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-21 01:36:31,444 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:36:31,444 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1443297494] [2021-11-21 01:36:31,444 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-21 01:36:31,444 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1091931831] [2021-11-21 01:36:31,445 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1091931831] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-21 01:36:31,445 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1298307063] [2021-11-21 01:36:31,465 INFO L159 IcfgInterpreter]: Started Sifa with 43 locations of interest [2021-11-21 01:36:31,465 INFO L166 IcfgInterpreter]: Building call graph [2021-11-21 01:36:31,470 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-21 01:36:31,475 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-21 01:36:31,475 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-21 01:36:31,581 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:36:31,591 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2021-11-21 01:36:31,608 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-21 01:36:31,618 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-21 01:36:31,628 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:36:31,641 INFO L354 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2021-11-21 01:36:31,641 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 26 [2021-11-21 01:36:31,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:36:31,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:36:31,695 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-21 01:36:31,696 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 27 treesize of output 37 [2021-11-21 01:36:31,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:36:31,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:36:31,847 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:36:31,910 INFO L354 Elim1Store]: treesize reduction 44, result has 30.2 percent of original size [2021-11-21 01:36:31,910 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 32 treesize of output 49 [2021-11-21 01:36:31,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:36:31,956 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2021-11-21 01:36:31,983 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:36:31,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:36:31,991 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-21 01:36:31,991 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 30 [2021-11-21 01:36:32,021 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:36:32,030 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:36:32,032 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:36:32,034 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:36:32,038 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 49 [2021-11-21 01:36:32,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:36:32,088 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2021-11-21 01:36:33,420 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:36:33,422 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:36:33,423 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:36:33,425 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2021-11-21 01:36:33,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:36:33,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:36:33,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:36:33,456 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2021-11-21 01:36:33,494 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:36:33,495 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:36:33,496 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:36:33,497 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:36:33,499 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:36:33,500 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:36:33,501 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:36:33,502 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:36:33,502 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:36:33,503 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:36:33,505 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 89 treesize of output 77 [2021-11-21 01:36:33,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:36:33,522 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:36:33,523 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:36:33,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:36:33,525 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:36:33,526 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:36:33,527 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:36:33,528 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:36:33,529 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:36:33,529 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:36:33,533 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 74 [2021-11-21 01:36:33,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:36:33,633 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:36:33,634 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:36:33,635 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2021-11-21 01:36:33,700 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:36:33,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:36:33,702 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:36:33,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:36:33,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:36:33,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:36:33,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:36:33,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:36:33,709 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:36:33,710 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:36:33,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:36:33,712 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:36:33,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:36:33,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:36:33,714 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:36:33,715 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:36:33,716 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:36:33,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:36:33,721 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 19 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 86 [2021-11-21 01:36:33,801 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:36:33,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:36:33,804 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:36:33,809 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2021-11-21 01:36:33,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:36:33,945 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:36:33,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:36:33,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:36:33,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:36:33,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:36:33,949 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:36:33,950 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:36:33,957 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:36:33,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:36:33,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:36:33,959 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:36:33,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:36:33,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:36:33,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:36:33,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:36:33,970 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-21 01:36:33,971 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 17 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 8 case distinctions, treesize of input 75 treesize of output 77 [2021-11-21 01:36:34,002 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:36:34,003 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:36:34,004 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:36:34,005 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:36:34,006 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:36:34,007 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:36:34,012 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2021-11-21 01:36:34,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:36:34,048 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:36:34,048 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:36:34,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:36:34,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:36:34,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:36:34,052 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 110 treesize of output 115 [2021-11-21 01:36:34,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:36:34,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:36:34,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:36:34,074 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:36:34,157 INFO L354 Elim1Store]: treesize reduction 194, result has 22.4 percent of original size [2021-11-21 01:36:34,157 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 7 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 13 case distinctions, treesize of input 127 treesize of output 163 [2021-11-21 01:36:34,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:36:34,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:36:34,174 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:36:34,218 INFO L354 Elim1Store]: treesize reduction 120, result has 14.9 percent of original size [2021-11-21 01:36:34,219 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 145 treesize of output 156 [2021-11-21 01:36:34,782 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-21 01:36:34,789 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-21 01:36:34,800 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-21 01:36:34,855 INFO L354 Elim1Store]: treesize reduction 19, result has 36.7 percent of original size [2021-11-21 01:36:34,855 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 85 treesize of output 88 [2021-11-21 01:36:34,884 INFO L354 Elim1Store]: treesize reduction 21, result has 34.4 percent of original size [2021-11-21 01:36:34,885 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 88 treesize of output 91 [2021-11-21 01:36:34,910 INFO L354 Elim1Store]: treesize reduction 19, result has 36.7 percent of original size [2021-11-21 01:36:34,910 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 91 treesize of output 94 [2021-11-21 01:36:35,018 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2021-11-21 01:36:35,026 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2021-11-21 01:36:35,036 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-11-21 01:36:35,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:36:35,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:36:35,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:36:35,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:36:35,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:36:35,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:36:35,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:36:35,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:36:35,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:36:35,145 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 10 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 22 [2021-11-21 01:36:35,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:36:35,187 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:36:35,187 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:36:35,188 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:36:35,189 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:36:35,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:36:35,191 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 68 treesize of output 26 [2021-11-21 01:36:35,225 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:36:35,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:36:35,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:36:35,229 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:36:35,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:36:35,231 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:36:35,232 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 16 [2021-11-21 01:36:35,510 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:36:35,511 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:36:35,512 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:36:35,513 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:36:35,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:36:35,515 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:36:35,516 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 68 treesize of output 26 [2021-11-21 01:36:35,586 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:36:35,588 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:36:35,589 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:36:35,590 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:36:35,591 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:36:35,592 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:36:35,593 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:36:35,594 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:36:35,595 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:36:35,596 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 10 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 22 [2021-11-21 01:36:35,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:36:35,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:36:35,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:36:35,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:36:35,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:36:35,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:36:35,671 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 16 [2021-11-21 01:36:42,057 WARN L227 SmtUtils]: Spent 6.28s on a formula simplification. DAG size of input: 66 DAG size of output: 32 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-21 01:36:42,058 INFO L354 Elim1Store]: treesize reduction 348, result has 15.7 percent of original size [2021-11-21 01:36:42,059 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 2847 treesize of output 2324 [2021-11-21 01:36:42,119 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:36:50,864 WARN L227 SmtUtils]: Spent 8.74s on a formula simplification. DAG size of input: 90 DAG size of output: 46 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-21 01:36:50,865 INFO L354 Elim1Store]: treesize reduction 262, result has 32.6 percent of original size [2021-11-21 01:36:50,866 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 4 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 7 new quantified variables, introduced 8 case distinctions, treesize of input 2948 treesize of output 2666 [2021-11-21 01:37:02,015 WARN L227 SmtUtils]: Spent 11.04s on a formula simplification. DAG size of input: 251 DAG size of output: 142 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-21 01:37:02,016 INFO L354 Elim1Store]: treesize reduction 2750, result has 29.6 percent of original size [2021-11-21 01:37:02,016 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 4 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 16 case distinctions, treesize of input 2916 treesize of output 2686 [2021-11-21 01:37:02,516 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:37:02,518 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:37:03,489 INFO L354 Elim1Store]: treesize reduction 126, result has 17.1 percent of original size [2021-11-21 01:37:03,490 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 12 case distinctions, treesize of input 25954 treesize of output 25968 [2021-11-21 01:37:03,629 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:37:03,630 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:37:03,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:37:04,513 INFO L354 Elim1Store]: treesize reduction 204, result has 13.2 percent of original size [2021-11-21 01:37:04,513 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 6 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 25953 treesize of output 25968 [2021-11-21 01:37:05,960 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:37:06,020 INFO L354 Elim1Store]: treesize reduction 32, result has 3.0 percent of original size [2021-11-21 01:37:06,020 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 50 treesize of output 32 [2021-11-21 01:37:06,386 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-21 01:37:06,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:37:06,978 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-21 01:37:06,979 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 51 treesize of output 61 [2021-11-21 01:37:08,888 INFO L244 Elim1Store]: Index analysis took 125 ms [2021-11-21 01:37:11,587 INFO L354 Elim1Store]: treesize reduction 122, result has 93.4 percent of original size [2021-11-21 01:37:11,588 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 8869 treesize of output 10151 [2021-11-21 01:37:14,496 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:37:14,497 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 13 [2021-11-21 01:37:15,538 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:37:15,581 INFO L244 Elim1Store]: Index analysis took 112 ms [2021-11-21 01:37:15,622 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:37:16,093 INFO L354 Elim1Store]: treesize reduction 20, result has 62.3 percent of original size [2021-11-21 01:37:16,093 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 67 treesize of output 77 [2021-11-21 01:37:16,840 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:37:16,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:37:16,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:37:16,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:37:16,857 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 42 [2021-11-21 01:37:17,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:37:17,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:37:17,241 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:37:17,242 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 28 [2021-11-21 01:37:17,406 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-21 01:37:25,402 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:37:25,405 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:37:25,426 INFO L190 IndexEqualityManager]: detected not equals via solver