./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_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_6af71cfb-db91-4234-9cd6-5dc2af9f5d93/bin/utaipan-TEXQjIfE4P/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6af71cfb-db91-4234-9cd6-5dc2af9f5d93/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_6af71cfb-db91-4234-9cd6-5dc2af9f5d93/bin/utaipan-TEXQjIfE4P/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6af71cfb-db91-4234-9cd6-5dc2af9f5d93/bin/utaipan-TEXQjIfE4P/config/TaipanReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test8-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6af71cfb-db91-4234-9cd6-5dc2af9f5d93/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_6af71cfb-db91-4234-9cd6-5dc2af9f5d93/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 b6c6a722152c52daf4f5e799c877f12032a99023b4a9ea1a935c1ce634969e85 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-21 01:19:25,964 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-21 01:19:25,966 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-21 01:19:26,022 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-21 01:19:26,023 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-21 01:19:26,028 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-21 01:19:26,030 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-21 01:19:26,034 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-21 01:19:26,037 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-21 01:19:26,043 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-21 01:19:26,044 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-21 01:19:26,047 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-21 01:19:26,047 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-21 01:19:26,050 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-21 01:19:26,052 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-21 01:19:26,057 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-21 01:19:26,059 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-21 01:19:26,060 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-21 01:19:26,063 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-21 01:19:26,071 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-21 01:19:26,073 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-21 01:19:26,075 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-21 01:19:26,078 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-21 01:19:26,080 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-21 01:19:26,089 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-21 01:19:26,089 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-21 01:19:26,090 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-21 01:19:26,092 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-21 01:19:26,093 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-21 01:19:26,095 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-21 01:19:26,095 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-21 01:19:26,096 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-21 01:19:26,099 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-21 01:19:26,100 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-21 01:19:26,102 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-21 01:19:26,102 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-21 01:19:26,103 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-21 01:19:26,103 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-21 01:19:26,103 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-21 01:19:26,104 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-21 01:19:26,105 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-21 01:19:26,106 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6af71cfb-db91-4234-9cd6-5dc2af9f5d93/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-21 01:19:26,152 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-21 01:19:26,152 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-21 01:19:26,153 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-21 01:19:26,153 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-21 01:19:26,161 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-21 01:19:26,161 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-21 01:19:26,161 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-21 01:19:26,162 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-21 01:19:26,162 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-21 01:19:26,162 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-21 01:19:26,163 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-21 01:19:26,164 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-21 01:19:26,164 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-21 01:19:26,164 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-21 01:19:26,164 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-21 01:19:26,165 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-21 01:19:26,165 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-21 01:19:26,165 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-21 01:19:26,166 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-21 01:19:26,166 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-21 01:19:26,166 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-21 01:19:26,167 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-21 01:19:26,167 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-21 01:19:26,167 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-21 01:19:26,167 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-21 01:19:26,167 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-21 01:19:26,169 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-21 01:19:26,169 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-21 01:19:26,170 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-21 01:19:26,170 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-21 01:19:26,170 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-21 01:19:26,171 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-21 01:19:26,171 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 01:19:26,171 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-21 01:19:26,171 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-21 01:19:26,172 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-21 01:19:26,172 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-21 01:19:26,172 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-21 01:19:26,172 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-21 01:19:26,173 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-21 01:19:26,173 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-21 01:19:26,173 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_6af71cfb-db91-4234-9cd6-5dc2af9f5d93/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6af71cfb-db91-4234-9cd6-5dc2af9f5d93/bin/utaipan-TEXQjIfE4P Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b6c6a722152c52daf4f5e799c877f12032a99023b4a9ea1a935c1ce634969e85 [2021-11-21 01:19:26,433 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-21 01:19:26,471 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-21 01:19:26,473 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-21 01:19:26,474 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-21 01:19:26,475 INFO L275 PluginConnector]: CDTParser initialized [2021-11-21 01:19:26,476 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6af71cfb-db91-4234-9cd6-5dc2af9f5d93/bin/utaipan-TEXQjIfE4P/../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test8-1.i [2021-11-21 01:19:26,563 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6af71cfb-db91-4234-9cd6-5dc2af9f5d93/bin/utaipan-TEXQjIfE4P/data/ebb192f4c/073445b4bfdd4171a4c62284b8f086a2/FLAG86baf6a64 [2021-11-21 01:19:27,295 INFO L306 CDTParser]: Found 1 translation units. [2021-11-21 01:19:27,297 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6af71cfb-db91-4234-9cd6-5dc2af9f5d93/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test8-1.i [2021-11-21 01:19:27,323 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6af71cfb-db91-4234-9cd6-5dc2af9f5d93/bin/utaipan-TEXQjIfE4P/data/ebb192f4c/073445b4bfdd4171a4c62284b8f086a2/FLAG86baf6a64 [2021-11-21 01:19:27,482 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6af71cfb-db91-4234-9cd6-5dc2af9f5d93/bin/utaipan-TEXQjIfE4P/data/ebb192f4c/073445b4bfdd4171a4c62284b8f086a2 [2021-11-21 01:19:27,484 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-21 01:19:27,485 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-21 01:19:27,487 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-21 01:19:27,487 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-21 01:19:27,492 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-21 01:19:27,493 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 01:19:27" (1/1) ... [2021-11-21 01:19:27,494 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@666086bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:19:27, skipping insertion in model container [2021-11-21 01:19:27,495 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 01:19:27" (1/1) ... [2021-11-21 01:19:27,502 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-21 01:19:27,564 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-21 01:19:28,026 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_6af71cfb-db91-4234-9cd6-5dc2af9f5d93/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test8-1.i[33021,33034] [2021-11-21 01:19:28,209 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_6af71cfb-db91-4234-9cd6-5dc2af9f5d93/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test8-1.i[45234,45247] [2021-11-21 01:19:28,216 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 01:19:28,226 INFO L203 MainTranslator]: Completed pre-run [2021-11-21 01:19:28,261 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_6af71cfb-db91-4234-9cd6-5dc2af9f5d93/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test8-1.i[33021,33034] [2021-11-21 01:19:28,335 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_6af71cfb-db91-4234-9cd6-5dc2af9f5d93/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test8-1.i[45234,45247] [2021-11-21 01:19:28,339 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 01:19:28,378 INFO L208 MainTranslator]: Completed translation [2021-11-21 01:19:28,378 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:19:28 WrapperNode [2021-11-21 01:19:28,379 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-21 01:19:28,380 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-21 01:19:28,380 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-21 01:19:28,380 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-21 01:19:28,389 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:19:28" (1/1) ... [2021-11-21 01:19:28,423 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:19:28" (1/1) ... [2021-11-21 01:19:28,490 INFO L137 Inliner]: procedures = 177, calls = 297, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 996 [2021-11-21 01:19:28,491 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-21 01:19:28,492 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-21 01:19:28,492 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-21 01:19:28,492 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-21 01:19:28,500 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:19:28" (1/1) ... [2021-11-21 01:19:28,501 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:19:28" (1/1) ... [2021-11-21 01:19:28,511 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:19:28" (1/1) ... [2021-11-21 01:19:28,512 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:19:28" (1/1) ... [2021-11-21 01:19:28,563 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:19:28" (1/1) ... [2021-11-21 01:19:28,577 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:19:28" (1/1) ... [2021-11-21 01:19:28,583 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:19:28" (1/1) ... [2021-11-21 01:19:28,593 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-21 01:19:28,594 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-21 01:19:28,594 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-21 01:19:28,595 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-21 01:19:28,597 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:19:28" (1/1) ... [2021-11-21 01:19:28,615 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 01:19:28,629 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6af71cfb-db91-4234-9cd6-5dc2af9f5d93/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:19:28,651 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6af71cfb-db91-4234-9cd6-5dc2af9f5d93/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-21 01:19:28,697 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6af71cfb-db91-4234-9cd6-5dc2af9f5d93/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-21 01:19:28,767 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-21 01:19:28,768 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-21 01:19:28,768 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-21 01:19:28,768 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-21 01:19:28,768 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-21 01:19:28,769 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-21 01:19:28,769 INFO L130 BoogieDeclarations]: Found specification of procedure test_int [2021-11-21 01:19:28,769 INFO L138 BoogieDeclarations]: Found implementation of procedure test_int [2021-11-21 01:19:28,769 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-21 01:19:28,769 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-21 01:19:28,770 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-21 01:19:28,770 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-21 01:19:28,770 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-21 01:19:28,770 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-21 01:19:28,770 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-21 01:19:28,770 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-21 01:19:28,771 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-21 01:19:28,771 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-21 01:19:29,035 INFO L236 CfgBuilder]: Building ICFG [2021-11-21 01:19:29,036 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-21 01:19:30,127 INFO L277 CfgBuilder]: Performing block encoding [2021-11-21 01:19:30,607 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-21 01:19:30,607 INFO L301 CfgBuilder]: Removed 62 assume(true) statements. [2021-11-21 01:19:30,611 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:19:30 BoogieIcfgContainer [2021-11-21 01:19:30,612 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-21 01:19:30,614 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-21 01:19:30,614 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-21 01:19:30,621 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-21 01:19:30,622 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 01:19:27" (1/3) ... [2021-11-21 01:19:30,623 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@614cfbaa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 01:19:30, skipping insertion in model container [2021-11-21 01:19:30,624 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:19:28" (2/3) ... [2021-11-21 01:19:30,625 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@614cfbaa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 01:19:30, skipping insertion in model container [2021-11-21 01:19:30,625 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:19:30" (3/3) ... [2021-11-21 01:19:30,627 INFO L111 eAbstractionObserver]: Analyzing ICFG uthash_FNV_test8-1.i [2021-11-21 01:19:30,636 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-21 01:19:30,636 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-11-21 01:19:30,714 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-21 01:19:30,733 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 01:19:30,733 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-11-21 01:19:30,768 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 01:19:30,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-21 01:19:30,775 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:19:30,776 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:19:30,776 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:19:30,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:19:30,781 INFO L85 PathProgramCache]: Analyzing trace with hash -1967293167, now seen corresponding path program 1 times [2021-11-21 01:19:30,792 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:19:30,793 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1870730961] [2021-11-21 01:19:30,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:19:30,795 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:19:30,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:19:30,952 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 01:19:30,953 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:19:30,953 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1870730961] [2021-11-21 01:19:30,954 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1870730961] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:19:30,954 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:19:30,954 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-21 01:19:30,956 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1954819808] [2021-11-21 01:19:30,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:19:30,961 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-21 01:19:30,961 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:19:30,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-21 01:19:30,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-21 01:19:30,992 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 01:19:31,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:19:31,382 INFO L93 Difference]: Finished difference Result 295 states and 534 transitions. [2021-11-21 01:19:31,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-21 01:19:31,395 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 01:19:31,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:19:31,406 INFO L225 Difference]: With dead ends: 295 [2021-11-21 01:19:31,409 INFO L226 Difference]: Without dead ends: 146 [2021-11-21 01:19:31,414 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 01:19:31,421 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 01:19:31,424 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 01:19:31,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2021-11-21 01:19:31,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 146. [2021-11-21 01:19:31,502 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 01:19:31,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 194 transitions. [2021-11-21 01:19:31,508 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 194 transitions. Word has length 8 [2021-11-21 01:19:31,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:19:31,508 INFO L470 AbstractCegarLoop]: Abstraction has 146 states and 194 transitions. [2021-11-21 01:19:31,509 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 01:19:31,509 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 194 transitions. [2021-11-21 01:19:31,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-11-21 01:19:31,511 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:19:31,512 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 01:19:31,512 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-21 01:19:31,513 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:19:31,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:19:31,514 INFO L85 PathProgramCache]: Analyzing trace with hash 1767054038, now seen corresponding path program 1 times [2021-11-21 01:19:31,514 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:19:31,514 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [194948178] [2021-11-21 01:19:31,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:19:31,515 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:19:31,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:19:31,599 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 01:19:31,600 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:19:31,600 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [194948178] [2021-11-21 01:19:31,601 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [194948178] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:19:31,601 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:19:31,601 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 01:19:31,602 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1761216089] [2021-11-21 01:19:31,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:19:31,604 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 01:19:31,604 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:19:31,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 01:19:31,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 01:19:31,612 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 01:19:34,799 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 01:19:34,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:19:34,862 INFO L93 Difference]: Finished difference Result 293 states and 390 transitions. [2021-11-21 01:19:34,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 01:19:34,863 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 01:19:34,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:19:34,866 INFO L225 Difference]: With dead ends: 293 [2021-11-21 01:19:34,866 INFO L226 Difference]: Without dead ends: 202 [2021-11-21 01:19:34,868 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 01:19:34,869 INFO L933 BasicCegarLoop]: 169 mSDtfsCounter, 60 mSDsluCounter, 336 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s 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, 3.2s IncrementalHoareTripleChecker+Time [2021-11-21 01:19:34,870 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [61 Valid, 488 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 98 Invalid, 1 Unknown, 0 Unchecked, 3.2s Time] [2021-11-21 01:19:34,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2021-11-21 01:19:34,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 148. [2021-11-21 01:19:34,889 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 01:19:34,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 196 transitions. [2021-11-21 01:19:34,891 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 196 transitions. Word has length 20 [2021-11-21 01:19:34,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:19:34,891 INFO L470 AbstractCegarLoop]: Abstraction has 148 states and 196 transitions. [2021-11-21 01:19:34,892 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 01:19:34,892 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 196 transitions. [2021-11-21 01:19:34,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-11-21 01:19:34,894 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:19:34,894 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 01:19:34,894 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-21 01:19:34,895 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:19:34,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:19:34,896 INFO L85 PathProgramCache]: Analyzing trace with hash -430271198, now seen corresponding path program 1 times [2021-11-21 01:19:34,896 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:19:34,896 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [791346446] [2021-11-21 01:19:34,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:19:34,897 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:19:34,919 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-21 01:19:34,920 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [211520886] [2021-11-21 01:19:34,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:19:34,920 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:19:34,920 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6af71cfb-db91-4234-9cd6-5dc2af9f5d93/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:19:34,930 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6af71cfb-db91-4234-9cd6-5dc2af9f5d93/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 01:19:34,937 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6af71cfb-db91-4234-9cd6-5dc2af9f5d93/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-21 01:19:35,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:19:35,231 INFO L263 TraceCheckSpWp]: Trace formula consists of 170 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-21 01:19:35,240 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 01:19:35,462 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 01:19:35,462 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-21 01:19:35,463 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:19:35,463 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [791346446] [2021-11-21 01:19:35,463 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-21 01:19:35,468 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [211520886] [2021-11-21 01:19:35,468 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [211520886] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:19:35,469 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:19:35,469 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-21 01:19:35,470 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [47129136] [2021-11-21 01:19:35,470 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:19:35,471 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 01:19:35,472 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:19:35,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 01:19:35,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:19:35,473 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 01:19:36,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:19:36,673 INFO L93 Difference]: Finished difference Result 341 states and 444 transitions. [2021-11-21 01:19:36,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 01:19:36,677 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 01:19:36,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:19:36,680 INFO L225 Difference]: With dead ends: 341 [2021-11-21 01:19:36,680 INFO L226 Difference]: Without dead ends: 196 [2021-11-21 01:19:36,682 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 01:19:36,683 INFO L933 BasicCegarLoop]: 189 mSDtfsCounter, 45 mSDsluCounter, 167 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 343 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2021-11-21 01:19:36,684 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [48 Valid, 343 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2021-11-21 01:19:36,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2021-11-21 01:19:36,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 193. [2021-11-21 01:19:36,703 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 01:19:36,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 247 transitions. [2021-11-21 01:19:36,705 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 247 transitions. Word has length 32 [2021-11-21 01:19:36,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:19:36,706 INFO L470 AbstractCegarLoop]: Abstraction has 193 states and 247 transitions. [2021-11-21 01:19:36,706 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 01:19:36,706 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 247 transitions. [2021-11-21 01:19:36,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-11-21 01:19:36,708 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:19:36,708 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 01:19:36,746 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6af71cfb-db91-4234-9cd6-5dc2af9f5d93/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-21 01:19:36,933 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6af71cfb-db91-4234-9cd6-5dc2af9f5d93/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2021-11-21 01:19:36,933 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:19:36,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:19:36,934 INFO L85 PathProgramCache]: Analyzing trace with hash 308571032, now seen corresponding path program 1 times [2021-11-21 01:19:36,934 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:19:36,934 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1914937810] [2021-11-21 01:19:36,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:19:36,934 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:19:36,953 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-21 01:19:36,954 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1897426363] [2021-11-21 01:19:36,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:19:36,954 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:19:36,955 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6af71cfb-db91-4234-9cd6-5dc2af9f5d93/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:19:36,956 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6af71cfb-db91-4234-9cd6-5dc2af9f5d93/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 01:19:36,960 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6af71cfb-db91-4234-9cd6-5dc2af9f5d93/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-21 01:19:37,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:19:37,811 INFO L263 TraceCheckSpWp]: Trace formula consists of 275 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-21 01:19:37,814 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 01:19:37,938 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 01:19:37,939 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-21 01:19:37,939 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:19:37,939 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1914937810] [2021-11-21 01:19:37,939 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-21 01:19:37,946 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1897426363] [2021-11-21 01:19:37,947 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1897426363] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:19:37,947 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:19:37,947 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 01:19:37,948 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1985409922] [2021-11-21 01:19:37,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:19:37,949 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 01:19:37,949 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:19:37,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 01:19:37,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 01:19:37,950 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 01:19:39,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:19:39,847 INFO L93 Difference]: Finished difference Result 372 states and 482 transitions. [2021-11-21 01:19:39,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 01:19:39,863 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 01:19:39,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:19:39,865 INFO L225 Difference]: With dead ends: 372 [2021-11-21 01:19:39,865 INFO L226 Difference]: Without dead ends: 195 [2021-11-21 01:19:39,866 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 01:19:39,868 INFO L933 BasicCegarLoop]: 174 mSDtfsCounter, 1 mSDsluCounter, 378 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s 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, 1.9s IncrementalHoareTripleChecker+Time [2021-11-21 01:19:39,868 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 518 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2021-11-21 01:19:39,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states. [2021-11-21 01:19:39,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 195. [2021-11-21 01:19:39,886 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 01:19:39,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 250 transitions. [2021-11-21 01:19:39,888 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 250 transitions. Word has length 45 [2021-11-21 01:19:39,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:19:39,889 INFO L470 AbstractCegarLoop]: Abstraction has 195 states and 250 transitions. [2021-11-21 01:19:39,889 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 01:19:39,890 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 250 transitions. [2021-11-21 01:19:39,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-11-21 01:19:39,891 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:19:39,892 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 01:19:39,926 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6af71cfb-db91-4234-9cd6-5dc2af9f5d93/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-21 01:19:40,099 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6af71cfb-db91-4234-9cd6-5dc2af9f5d93/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:19:40,099 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:19:40,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:19:40,100 INFO L85 PathProgramCache]: Analyzing trace with hash -282668078, now seen corresponding path program 1 times [2021-11-21 01:19:40,100 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:19:40,101 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1116518185] [2021-11-21 01:19:40,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:19:40,101 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:19:40,142 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-21 01:19:40,156 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [573776165] [2021-11-21 01:19:40,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:19:40,157 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:19:40,157 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6af71cfb-db91-4234-9cd6-5dc2af9f5d93/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:19:40,169 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6af71cfb-db91-4234-9cd6-5dc2af9f5d93/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 01:19:40,190 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6af71cfb-db91-4234-9cd6-5dc2af9f5d93/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-21 01:19:41,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:19:41,798 INFO L263 TraceCheckSpWp]: Trace formula consists of 287 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-21 01:19:41,802 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 01:19:41,900 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 01:19:41,900 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 01:19:42,087 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 01:19:42,087 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:19:42,087 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1116518185] [2021-11-21 01:19:42,087 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-21 01:19:42,088 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [573776165] [2021-11-21 01:19:42,088 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [573776165] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-21 01:19:42,088 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1354275044] [2021-11-21 01:19:42,111 INFO L159 IcfgInterpreter]: Started Sifa with 43 locations of interest [2021-11-21 01:19:42,111 INFO L166 IcfgInterpreter]: Building call graph [2021-11-21 01:19:42,117 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-21 01:19:42,123 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-21 01:19:42,124 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-21 01:19:42,231 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:42,240 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 01:19:42,258 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 01:19:42,268 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 01:19:42,278 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:42,294 INFO L354 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2021-11-21 01:19:42,294 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 01:19:42,319 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:42,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:42,343 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-21 01:19:42,344 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 01:19:42,484 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:42,486 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:42,487 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:42,556 INFO L354 Elim1Store]: treesize reduction 44, result has 30.2 percent of original size [2021-11-21 01:19:42,557 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 01:19:42,599 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:42,600 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 01:19:42,627 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:42,630 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:42,635 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-21 01:19:42,635 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 01:19:42,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:42,674 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:42,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:42,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:42,679 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 01:19:42,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:42,731 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 01:19:44,200 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:44,201 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:44,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:44,204 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 01:19:44,237 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:44,238 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:44,240 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:44,241 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 01:19:44,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:44,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:44,285 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:44,286 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:44,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:44,289 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:44,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:44,292 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:44,293 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:44,294 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:44,296 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 01:19:44,309 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:44,311 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:44,312 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:44,313 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:44,315 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:44,316 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:44,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:44,319 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:44,320 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:44,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:44,323 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 01:19:44,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:44,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:44,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:44,441 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 01:19:44,504 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:44,505 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:44,506 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:44,508 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:44,509 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:44,511 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:44,512 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:44,513 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:44,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:44,515 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:44,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:44,518 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:44,519 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:44,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:44,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:44,523 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:44,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:44,525 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:44,527 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 01:19:44,606 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:44,608 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:44,611 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:44,620 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 01:19:44,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:44,812 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:44,813 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:44,815 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:44,816 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:44,818 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:44,819 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:44,820 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:44,822 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:44,830 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:44,831 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:44,832 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:44,835 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:44,838 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:44,841 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:44,842 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:44,849 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-21 01:19:44,850 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 01:19:44,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:44,904 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:44,905 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:44,907 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:44,908 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:44,909 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:44,916 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 01:19:44,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:44,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:44,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:44,967 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:44,968 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:44,969 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:44,971 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 01:19:45,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:45,022 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:45,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:45,026 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:45,113 INFO L354 Elim1Store]: treesize reduction 194, result has 22.4 percent of original size [2021-11-21 01:19:45,113 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 01:19:45,174 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:45,176 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:45,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:45,234 INFO L354 Elim1Store]: treesize reduction 120, result has 14.9 percent of original size [2021-11-21 01:19:45,235 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 01:19:45,826 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 01:19:45,838 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 01:19:45,847 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 01:19:45,909 INFO L354 Elim1Store]: treesize reduction 19, result has 36.7 percent of original size [2021-11-21 01:19:45,909 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 01:19:45,943 INFO L354 Elim1Store]: treesize reduction 21, result has 34.4 percent of original size [2021-11-21 01:19:45,944 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 01:19:45,975 INFO L354 Elim1Store]: treesize reduction 19, result has 36.7 percent of original size [2021-11-21 01:19:45,976 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 01:19:46,101 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 01:19:46,110 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 01:19:46,119 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 01:19:46,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:46,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:46,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:46,197 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:46,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:46,200 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:46,201 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:46,202 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:46,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:46,204 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 01:19:46,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:46,257 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:46,259 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:46,260 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:46,261 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:46,263 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:46,264 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 01:19:46,303 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:46,304 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:46,306 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:46,307 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:46,308 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:46,310 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:46,311 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 01:19:46,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:46,657 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:46,658 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:46,659 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:46,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:46,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:46,663 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 01:19:46,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:46,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:46,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:46,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:46,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:46,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:46,761 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:46,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:46,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:46,765 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 01:19:46,842 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:46,844 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:46,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:46,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:46,847 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:46,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:46,849 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 01:19:57,312 WARN L227 SmtUtils]: Spent 10.36s 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 01:19:57,313 INFO L354 Elim1Store]: treesize reduction 348, result has 15.7 percent of original size [2021-11-21 01:19:57,314 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 01:19:57,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:10,218 WARN L227 SmtUtils]: Spent 12.86s 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 01:20:10,218 INFO L354 Elim1Store]: treesize reduction 262, result has 32.6 percent of original size [2021-11-21 01:20:10,219 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 01:20:24,224 WARN L227 SmtUtils]: Spent 13.84s 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 01:20:24,225 INFO L354 Elim1Store]: treesize reduction 2750, result has 29.6 percent of original size [2021-11-21 01:20:24,226 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 01:20:24,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:24,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:25,604 INFO L354 Elim1Store]: treesize reduction 126, result has 17.1 percent of original size [2021-11-21 01:20:25,605 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 01:20:25,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:25,741 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:25,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:26,645 INFO L354 Elim1Store]: treesize reduction 204, result has 13.2 percent of original size [2021-11-21 01:20:26,646 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 01:20:28,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:28,172 INFO L354 Elim1Store]: treesize reduction 32, result has 3.0 percent of original size [2021-11-21 01:20:28,172 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 01:20:28,446 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-21 01:20:28,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:29,103 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-21 01:20:29,104 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 01:20:31,713 INFO L244 Elim1Store]: Index analysis took 286 ms [2021-11-21 01:20:34,901 INFO L354 Elim1Store]: treesize reduction 122, result has 93.4 percent of original size [2021-11-21 01:20:34,902 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 01:20:38,261 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:38,263 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 01:20:39,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:39,523 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:40,124 INFO L354 Elim1Store]: treesize reduction 20, result has 62.3 percent of original size [2021-11-21 01:20:40,124 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 01:20:41,016 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:20:41,025 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:41,029 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:41,036 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:41,038 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 01:20:41,456 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:41,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:41,472 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:20:41,473 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 01:20:41,638 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-21 01:20:50,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:50,344 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:50,364 INFO L190 IndexEqualityManager]: detected not equals via solver