./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test10-2.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_66ba6bff-d5bd-4db4-b625-ca08167c6d7d/bin/utaipan-TEXQjIfE4P/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66ba6bff-d5bd-4db4-b625-ca08167c6d7d/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_66ba6bff-d5bd-4db4-b625-ca08167c6d7d/bin/utaipan-TEXQjIfE4P/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66ba6bff-d5bd-4db4-b625-ca08167c6d7d/bin/utaipan-TEXQjIfE4P/config/TaipanReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test10-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66ba6bff-d5bd-4db4-b625-ca08167c6d7d/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_66ba6bff-d5bd-4db4-b625-ca08167c6d7d/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 e2d96ac7da90505ebe789a14ca36a5b916234d7d0d8ab11cf581076a8deb0195 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-20 23:17:59,280 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-20 23:17:59,282 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-20 23:17:59,328 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-20 23:17:59,329 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-20 23:17:59,333 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-20 23:17:59,335 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-20 23:17:59,339 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-20 23:17:59,342 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-20 23:17:59,348 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-20 23:17:59,349 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-20 23:17:59,351 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-20 23:17:59,351 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-20 23:17:59,354 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-20 23:17:59,357 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-20 23:17:59,365 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-20 23:17:59,367 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-20 23:17:59,368 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-20 23:17:59,370 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-20 23:17:59,379 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-20 23:17:59,381 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-20 23:17:59,384 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-20 23:17:59,388 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-20 23:17:59,389 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-20 23:17:59,398 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-20 23:17:59,398 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-20 23:17:59,399 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-20 23:17:59,401 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-20 23:17:59,401 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-20 23:17:59,403 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-20 23:17:59,404 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-20 23:17:59,405 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-20 23:17:59,407 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-20 23:17:59,408 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-20 23:17:59,410 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-20 23:17:59,410 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-20 23:17:59,411 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-20 23:17:59,411 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-20 23:17:59,411 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-20 23:17:59,412 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-20 23:17:59,413 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-20 23:17:59,414 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66ba6bff-d5bd-4db4-b625-ca08167c6d7d/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-20 23:17:59,460 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-20 23:17:59,460 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-20 23:17:59,461 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-20 23:17:59,461 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-20 23:17:59,462 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-20 23:17:59,462 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-20 23:17:59,462 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-20 23:17:59,462 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-20 23:17:59,469 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-20 23:17:59,469 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-20 23:17:59,470 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-20 23:17:59,471 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-20 23:17:59,471 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-20 23:17:59,471 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-20 23:17:59,471 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-20 23:17:59,471 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-20 23:17:59,472 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-20 23:17:59,472 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-20 23:17:59,472 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-20 23:17:59,473 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-20 23:17:59,473 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-20 23:17:59,473 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-20 23:17:59,473 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-20 23:17:59,474 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-20 23:17:59,474 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-20 23:17:59,474 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-20 23:17:59,476 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-20 23:17:59,476 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-20 23:17:59,476 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-20 23:17:59,476 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-20 23:17:59,477 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-20 23:17:59,477 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-20 23:17:59,477 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 23:17:59,477 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-20 23:17:59,478 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-20 23:17:59,478 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-20 23:17:59,478 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-20 23:17:59,478 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-20 23:17:59,478 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-20 23:17:59,478 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-20 23:17:59,479 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-20 23:17:59,479 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_66ba6bff-d5bd-4db4-b625-ca08167c6d7d/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66ba6bff-d5bd-4db4-b625-ca08167c6d7d/bin/utaipan-TEXQjIfE4P Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e2d96ac7da90505ebe789a14ca36a5b916234d7d0d8ab11cf581076a8deb0195 [2021-11-20 23:17:59,754 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-20 23:17:59,779 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-20 23:17:59,782 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-20 23:17:59,783 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-20 23:17:59,784 INFO L275 PluginConnector]: CDTParser initialized [2021-11-20 23:17:59,786 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66ba6bff-d5bd-4db4-b625-ca08167c6d7d/bin/utaipan-TEXQjIfE4P/../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test10-2.i [2021-11-20 23:17:59,864 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66ba6bff-d5bd-4db4-b625-ca08167c6d7d/bin/utaipan-TEXQjIfE4P/data/f019fc747/6596b248f54e4091a799e1021dad5c90/FLAG509a9ca60 [2021-11-20 23:18:00,529 INFO L306 CDTParser]: Found 1 translation units. [2021-11-20 23:18:00,529 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66ba6bff-d5bd-4db4-b625-ca08167c6d7d/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test10-2.i [2021-11-20 23:18:00,569 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66ba6bff-d5bd-4db4-b625-ca08167c6d7d/bin/utaipan-TEXQjIfE4P/data/f019fc747/6596b248f54e4091a799e1021dad5c90/FLAG509a9ca60 [2021-11-20 23:18:00,704 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66ba6bff-d5bd-4db4-b625-ca08167c6d7d/bin/utaipan-TEXQjIfE4P/data/f019fc747/6596b248f54e4091a799e1021dad5c90 [2021-11-20 23:18:00,707 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-20 23:18:00,708 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-20 23:18:00,709 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-20 23:18:00,710 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-20 23:18:00,729 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-20 23:18:00,730 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:18:00" (1/1) ... [2021-11-20 23:18:00,731 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@599febd5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:18:00, skipping insertion in model container [2021-11-20 23:18:00,731 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:18:00" (1/1) ... [2021-11-20 23:18:00,744 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-20 23:18:00,829 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-20 23:18:01,327 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_66ba6bff-d5bd-4db4-b625-ca08167c6d7d/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test10-2.i[33022,33035] [2021-11-20 23:18:01,658 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 23:18:01,671 INFO L203 MainTranslator]: Completed pre-run [2021-11-20 23:18:01,713 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_66ba6bff-d5bd-4db4-b625-ca08167c6d7d/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test10-2.i[33022,33035] [2021-11-20 23:18:01,886 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 23:18:01,936 INFO L208 MainTranslator]: Completed translation [2021-11-20 23:18:01,936 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:18:01 WrapperNode [2021-11-20 23:18:01,936 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-20 23:18:01,938 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-20 23:18:01,938 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-20 23:18:01,938 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-20 23:18:01,946 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:18:01" (1/1) ... [2021-11-20 23:18:02,006 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:18:01" (1/1) ... [2021-11-20 23:18:02,121 INFO L137 Inliner]: procedures = 177, calls = 575, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 2330 [2021-11-20 23:18:02,121 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-20 23:18:02,122 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-20 23:18:02,122 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-20 23:18:02,122 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-20 23:18:02,131 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:18:01" (1/1) ... [2021-11-20 23:18:02,132 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:18:01" (1/1) ... [2021-11-20 23:18:02,143 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:18:01" (1/1) ... [2021-11-20 23:18:02,143 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:18:01" (1/1) ... [2021-11-20 23:18:02,238 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:18:01" (1/1) ... [2021-11-20 23:18:02,303 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:18:01" (1/1) ... [2021-11-20 23:18:02,316 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:18:01" (1/1) ... [2021-11-20 23:18:02,343 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-20 23:18:02,345 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-20 23:18:02,345 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-20 23:18:02,345 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-20 23:18:02,347 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:18:01" (1/1) ... [2021-11-20 23:18:02,355 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 23:18:02,366 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66ba6bff-d5bd-4db4-b625-ca08167c6d7d/bin/utaipan-TEXQjIfE4P/z3 [2021-11-20 23:18:02,381 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66ba6bff-d5bd-4db4-b625-ca08167c6d7d/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-20 23:18:02,416 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66ba6bff-d5bd-4db4-b625-ca08167c6d7d/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-20 23:18:02,434 INFO L130 BoogieDeclarations]: Found specification of procedure test_int_int [2021-11-20 23:18:02,435 INFO L138 BoogieDeclarations]: Found implementation of procedure test_int_int [2021-11-20 23:18:02,435 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-20 23:18:02,435 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-20 23:18:02,435 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-20 23:18:02,435 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-20 23:18:02,435 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-20 23:18:02,435 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-20 23:18:02,436 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-20 23:18:02,436 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-20 23:18:02,436 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-20 23:18:02,436 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-20 23:18:02,436 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-20 23:18:02,436 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-20 23:18:02,436 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-20 23:18:02,436 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-20 23:18:02,436 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-20 23:18:02,437 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-20 23:18:02,783 INFO L236 CfgBuilder]: Building ICFG [2021-11-20 23:18:02,785 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-20 23:18:04,626 INFO L277 CfgBuilder]: Performing block encoding [2021-11-20 23:18:05,482 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-20 23:18:05,482 INFO L301 CfgBuilder]: Removed 160 assume(true) statements. [2021-11-20 23:18:05,487 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:18:05 BoogieIcfgContainer [2021-11-20 23:18:05,487 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-20 23:18:05,490 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-20 23:18:05,490 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-20 23:18:05,494 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-20 23:18:05,494 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 11:18:00" (1/3) ... [2021-11-20 23:18:05,495 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@404952fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:18:05, skipping insertion in model container [2021-11-20 23:18:05,495 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:18:01" (2/3) ... [2021-11-20 23:18:05,496 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@404952fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:18:05, skipping insertion in model container [2021-11-20 23:18:05,496 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:18:05" (3/3) ... [2021-11-20 23:18:05,498 INFO L111 eAbstractionObserver]: Analyzing ICFG uthash_BER_test10-2.i [2021-11-20 23:18:05,505 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-20 23:18:05,505 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-20 23:18:05,575 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-20 23:18:05,592 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 [2021-11-20 23:18:05,595 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-20 23:18:05,631 INFO L276 IsEmpty]: Start isEmpty. Operand has 265 states, 246 states have (on average 1.8252032520325203) internal successors, (449), 251 states have internal predecessors, (449), 14 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (14), 11 states have call predecessors, (14), 14 states have call successors, (14) [2021-11-20 23:18:05,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-11-20 23:18:05,640 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:18:05,641 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:18:05,642 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 23:18:05,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:18:05,648 INFO L85 PathProgramCache]: Analyzing trace with hash 1013260908, now seen corresponding path program 1 times [2021-11-20 23:18:05,658 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:18:05,660 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1851753422] [2021-11-20 23:18:05,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:18:05,661 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:18:05,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:18:05,833 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 23:18:05,834 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:18:05,834 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1851753422] [2021-11-20 23:18:05,835 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1851753422] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:18:05,835 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:18:05,836 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-20 23:18:05,837 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [158822308] [2021-11-20 23:18:05,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:18:05,842 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-20 23:18:05,843 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:18:05,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-20 23:18:05,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-20 23:18:05,889 INFO L87 Difference]: Start difference. First operand has 265 states, 246 states have (on average 1.8252032520325203) internal successors, (449), 251 states have internal predecessors, (449), 14 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (14), 11 states have call predecessors, (14), 14 states have call successors, (14) Second operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 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) [2021-11-20 23:18:07,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:18:07,266 INFO L93 Difference]: Finished difference Result 529 states and 961 transitions. [2021-11-20 23:18:07,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-20 23:18:07,271 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 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 12 [2021-11-20 23:18:07,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:18:07,284 INFO L225 Difference]: With dead ends: 529 [2021-11-20 23:18:07,284 INFO L226 Difference]: Without dead ends: 249 [2021-11-20 23:18:07,290 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 [2021-11-20 23:18:07,294 INFO L933 BasicCegarLoop]: 288 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 288 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-11-20 23:18:07,295 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 288 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2021-11-20 23:18:07,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249 states. [2021-11-20 23:18:07,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249 to 249. [2021-11-20 23:18:07,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 249 states, 231 states have (on average 1.199134199134199) internal successors, (277), 236 states have internal predecessors, (277), 14 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (13), 10 states have call predecessors, (13), 13 states have call successors, (13) [2021-11-20 23:18:07,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 304 transitions. [2021-11-20 23:18:07,358 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 304 transitions. Word has length 12 [2021-11-20 23:18:07,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:18:07,359 INFO L470 AbstractCegarLoop]: Abstraction has 249 states and 304 transitions. [2021-11-20 23:18:07,359 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 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) [2021-11-20 23:18:07,360 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 304 transitions. [2021-11-20 23:18:07,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-20 23:18:07,363 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:18:07,363 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] [2021-11-20 23:18:07,363 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-20 23:18:07,364 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 23:18:07,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:18:07,365 INFO L85 PathProgramCache]: Analyzing trace with hash 1808167895, now seen corresponding path program 1 times [2021-11-20 23:18:07,365 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:18:07,365 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1420118974] [2021-11-20 23:18:07,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:18:07,366 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:18:07,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:18:07,452 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 23:18:07,453 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:18:07,454 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1420118974] [2021-11-20 23:18:07,454 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1420118974] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:18:07,454 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:18:07,455 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-20 23:18:07,455 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2012538029] [2021-11-20 23:18:07,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:18:07,458 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 23:18:07,458 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:18:07,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 23:18:07,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 23:18:07,460 INFO L87 Difference]: Start difference. First operand 249 states and 304 transitions. Second operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 3 states have internal predecessors, (22), 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) [2021-11-20 23:18:10,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:18:10,119 INFO L93 Difference]: Finished difference Result 425 states and 521 transitions. [2021-11-20 23:18:10,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 23:18:10,120 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 3 states have internal predecessors, (22), 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 24 [2021-11-20 23:18:10,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:18:10,122 INFO L225 Difference]: With dead ends: 425 [2021-11-20 23:18:10,123 INFO L226 Difference]: Without dead ends: 276 [2021-11-20 23:18:10,124 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 [2021-11-20 23:18:10,126 INFO L933 BasicCegarLoop]: 271 mSDtfsCounter, 27 mSDsluCounter, 531 mSDsCounter, 0 mSdLazyCounter, 141 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 770 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2021-11-20 23:18:10,126 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [27 Valid, 770 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 141 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2021-11-20 23:18:10,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 276 states. [2021-11-20 23:18:10,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 276 to 251. [2021-11-20 23:18:10,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 251 states, 233 states have (on average 1.1974248927038627) internal successors, (279), 238 states have internal predecessors, (279), 14 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (13), 10 states have call predecessors, (13), 13 states have call successors, (13) [2021-11-20 23:18:10,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 251 states to 251 states and 306 transitions. [2021-11-20 23:18:10,147 INFO L78 Accepts]: Start accepts. Automaton has 251 states and 306 transitions. Word has length 24 [2021-11-20 23:18:10,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:18:10,148 INFO L470 AbstractCegarLoop]: Abstraction has 251 states and 306 transitions. [2021-11-20 23:18:10,148 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 3 states have internal predecessors, (22), 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) [2021-11-20 23:18:10,149 INFO L276 IsEmpty]: Start isEmpty. Operand 251 states and 306 transitions. [2021-11-20 23:18:10,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-11-20 23:18:10,151 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:18:10,151 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:18:10,152 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-20 23:18:10,152 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 23:18:10,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:18:10,153 INFO L85 PathProgramCache]: Analyzing trace with hash 1787107309, now seen corresponding path program 1 times [2021-11-20 23:18:10,153 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:18:10,153 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1296255552] [2021-11-20 23:18:10,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:18:10,154 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:18:10,226 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-20 23:18:10,226 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1679106739] [2021-11-20 23:18:10,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:18:10,227 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 23:18:10,227 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66ba6bff-d5bd-4db4-b625-ca08167c6d7d/bin/utaipan-TEXQjIfE4P/z3 [2021-11-20 23:18:10,233 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66ba6bff-d5bd-4db4-b625-ca08167c6d7d/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 23:18:10,253 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66ba6bff-d5bd-4db4-b625-ca08167c6d7d/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-20 23:18:10,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:18:10,604 INFO L263 TraceCheckSpWp]: Trace formula consists of 237 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-20 23:18:10,614 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 23:18:10,857 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 23:18:10,857 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 23:18:10,858 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:18:10,858 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1296255552] [2021-11-20 23:18:10,858 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-20 23:18:10,858 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1679106739] [2021-11-20 23:18:10,859 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1679106739] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:18:10,860 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:18:10,860 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-20 23:18:10,864 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1627610436] [2021-11-20 23:18:10,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:18:10,865 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 23:18:10,865 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:18:10,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 23:18:10,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 23:18:10,867 INFO L87 Difference]: Start difference. First operand 251 states and 306 transitions. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 2 states have internal predecessors, (47), 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) [2021-11-20 23:18:13,440 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 23:18:13,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:18:13,743 INFO L93 Difference]: Finished difference Result 614 states and 746 transitions. [2021-11-20 23:18:13,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 23:18:13,744 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 2 states have internal predecessors, (47), 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 49 [2021-11-20 23:18:13,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:18:13,747 INFO L225 Difference]: With dead ends: 614 [2021-11-20 23:18:13,747 INFO L226 Difference]: Without dead ends: 366 [2021-11-20 23:18:13,748 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 23:18:13,750 INFO L933 BasicCegarLoop]: 279 mSDtfsCounter, 120 mSDsluCounter, 279 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 532 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2021-11-20 23:18:13,750 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [127 Valid, 532 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2021-11-20 23:18:13,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 366 states. [2021-11-20 23:18:13,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 366 to 362. [2021-11-20 23:18:13,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 362 states, 339 states have (on average 1.1799410029498525) internal successors, (400), 344 states have internal predecessors, (400), 19 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (18), 15 states have call predecessors, (18), 18 states have call successors, (18) [2021-11-20 23:18:13,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 362 states to 362 states and 437 transitions. [2021-11-20 23:18:13,794 INFO L78 Accepts]: Start accepts. Automaton has 362 states and 437 transitions. Word has length 49 [2021-11-20 23:18:13,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:18:13,795 INFO L470 AbstractCegarLoop]: Abstraction has 362 states and 437 transitions. [2021-11-20 23:18:13,795 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 2 states have internal predecessors, (47), 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) [2021-11-20 23:18:13,795 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states and 437 transitions. [2021-11-20 23:18:13,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-11-20 23:18:13,805 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:18:13,806 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:18:13,843 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66ba6bff-d5bd-4db4-b625-ca08167c6d7d/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-20 23:18:14,020 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66ba6bff-d5bd-4db4-b625-ca08167c6d7d/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 23:18:14,020 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 23:18:14,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:18:14,021 INFO L85 PathProgramCache]: Analyzing trace with hash -338981431, now seen corresponding path program 1 times [2021-11-20 23:18:14,021 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:18:14,021 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [127567709] [2021-11-20 23:18:14,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:18:14,022 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:18:14,046 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-20 23:18:14,046 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1671689232] [2021-11-20 23:18:14,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:18:14,047 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 23:18:14,047 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66ba6bff-d5bd-4db4-b625-ca08167c6d7d/bin/utaipan-TEXQjIfE4P/z3 [2021-11-20 23:18:14,048 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66ba6bff-d5bd-4db4-b625-ca08167c6d7d/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 23:18:14,074 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66ba6bff-d5bd-4db4-b625-ca08167c6d7d/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-20 23:18:14,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:18:14,414 INFO L263 TraceCheckSpWp]: Trace formula consists of 342 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-20 23:18:14,420 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 23:18:14,501 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 [2021-11-20 23:18:14,577 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 39 [2021-11-20 23:18:14,725 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-20 23:18:14,726 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 23:18:14,728 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:18:14,728 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [127567709] [2021-11-20 23:18:14,728 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-20 23:18:14,728 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1671689232] [2021-11-20 23:18:14,728 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1671689232] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:18:14,728 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:18:14,729 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-20 23:18:14,729 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1844697173] [2021-11-20 23:18:14,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:18:14,730 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 23:18:14,730 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:18:14,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 23:18:14,731 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 23:18:14,731 INFO L87 Difference]: Start difference. First operand 362 states and 437 transitions. Second operand has 4 states, 4 states have (on average 13.5) internal successors, (54), 3 states have internal predecessors, (54), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-20 23:18:18,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:18:18,485 INFO L93 Difference]: Finished difference Result 674 states and 815 transitions. [2021-11-20 23:18:18,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 23:18:18,486 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 3 states have internal predecessors, (54), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 62 [2021-11-20 23:18:18,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:18:18,488 INFO L225 Difference]: With dead ends: 674 [2021-11-20 23:18:18,489 INFO L226 Difference]: Without dead ends: 362 [2021-11-20 23:18:18,490 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-20 23:18:18,491 INFO L933 BasicCegarLoop]: 272 mSDtfsCounter, 12 mSDsluCounter, 533 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 772 SdHoareTripleChecker+Invalid, 141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2021-11-20 23:18:18,491 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12 Valid, 772 Invalid, 141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2021-11-20 23:18:18,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 362 states. [2021-11-20 23:18:18,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 362 to 362. [2021-11-20 23:18:18,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 362 states, 339 states have (on average 1.176991150442478) internal successors, (399), 344 states have internal predecessors, (399), 19 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (18), 15 states have call predecessors, (18), 18 states have call successors, (18) [2021-11-20 23:18:18,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 362 states to 362 states and 436 transitions. [2021-11-20 23:18:18,510 INFO L78 Accepts]: Start accepts. Automaton has 362 states and 436 transitions. Word has length 62 [2021-11-20 23:18:18,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:18:18,510 INFO L470 AbstractCegarLoop]: Abstraction has 362 states and 436 transitions. [2021-11-20 23:18:18,511 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 3 states have internal predecessors, (54), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-20 23:18:18,511 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states and 436 transitions. [2021-11-20 23:18:18,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2021-11-20 23:18:18,512 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:18:18,512 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:18:18,551 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66ba6bff-d5bd-4db4-b625-ca08167c6d7d/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-20 23:18:18,731 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66ba6bff-d5bd-4db4-b625-ca08167c6d7d/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 23:18:18,731 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 23:18:18,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:18:18,732 INFO L85 PathProgramCache]: Analyzing trace with hash -334329145, now seen corresponding path program 1 times [2021-11-20 23:18:18,732 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:18:18,732 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [305204649] [2021-11-20 23:18:18,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:18:18,732 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:18:18,754 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-20 23:18:18,754 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1172754801] [2021-11-20 23:18:18,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:18:18,755 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 23:18:18,755 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66ba6bff-d5bd-4db4-b625-ca08167c6d7d/bin/utaipan-TEXQjIfE4P/z3 [2021-11-20 23:18:18,756 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66ba6bff-d5bd-4db4-b625-ca08167c6d7d/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 23:18:18,763 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66ba6bff-d5bd-4db4-b625-ca08167c6d7d/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-20 23:18:19,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:18:19,127 INFO L263 TraceCheckSpWp]: Trace formula consists of 428 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-20 23:18:19,133 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 23:18:19,366 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-20 23:18:19,366 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 23:18:19,367 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:18:19,368 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [305204649] [2021-11-20 23:18:19,369 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-20 23:18:19,369 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1172754801] [2021-11-20 23:18:19,369 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1172754801] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:18:19,369 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:18:19,369 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-20 23:18:19,370 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1358196810] [2021-11-20 23:18:19,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:18:19,370 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 23:18:19,371 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:18:19,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 23:18:19,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 23:18:19,372 INFO L87 Difference]: Start difference. First operand 362 states and 436 transitions. Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 2 states have internal predecessors, (75), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-20 23:18:21,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:18:21,923 INFO L93 Difference]: Finished difference Result 820 states and 988 transitions. [2021-11-20 23:18:21,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 23:18:21,924 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 2 states have internal predecessors, (75), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 83 [2021-11-20 23:18:21,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:18:21,927 INFO L225 Difference]: With dead ends: 820 [2021-11-20 23:18:21,927 INFO L226 Difference]: Without dead ends: 484 [2021-11-20 23:18:21,928 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 23:18:21,929 INFO L933 BasicCegarLoop]: 277 mSDtfsCounter, 110 mSDsluCounter, 279 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 530 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2021-11-20 23:18:21,930 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [115 Valid, 530 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2021-11-20 23:18:21,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 484 states. [2021-11-20 23:18:21,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 484 to 429. [2021-11-20 23:18:21,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 429 states, 403 states have (on average 1.1687344913151365) internal successors, (471), 408 states have internal predecessors, (471), 22 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (21), 18 states have call predecessors, (21), 21 states have call successors, (21) [2021-11-20 23:18:21,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 429 states to 429 states and 514 transitions. [2021-11-20 23:18:21,955 INFO L78 Accepts]: Start accepts. Automaton has 429 states and 514 transitions. Word has length 83 [2021-11-20 23:18:21,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:18:21,956 INFO L470 AbstractCegarLoop]: Abstraction has 429 states and 514 transitions. [2021-11-20 23:18:21,956 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 2 states have internal predecessors, (75), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-20 23:18:21,956 INFO L276 IsEmpty]: Start isEmpty. Operand 429 states and 514 transitions. [2021-11-20 23:18:21,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-11-20 23:18:21,958 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:18:21,958 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:18:21,999 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66ba6bff-d5bd-4db4-b625-ca08167c6d7d/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-20 23:18:22,183 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66ba6bff-d5bd-4db4-b625-ca08167c6d7d/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 23:18:22,183 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 23:18:22,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:18:22,184 INFO L85 PathProgramCache]: Analyzing trace with hash 1903584894, now seen corresponding path program 1 times [2021-11-20 23:18:22,184 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:18:22,184 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1476501173] [2021-11-20 23:18:22,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:18:22,184 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:18:22,222 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-20 23:18:22,228 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1248803278] [2021-11-20 23:18:22,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:18:22,228 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 23:18:22,229 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66ba6bff-d5bd-4db4-b625-ca08167c6d7d/bin/utaipan-TEXQjIfE4P/z3 [2021-11-20 23:18:22,229 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66ba6bff-d5bd-4db4-b625-ca08167c6d7d/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 23:18:22,247 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66ba6bff-d5bd-4db4-b625-ca08167c6d7d/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-20 23:18:22,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:18:22,611 INFO L263 TraceCheckSpWp]: Trace formula consists of 533 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-20 23:18:22,617 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 23:18:22,923 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-11-20 23:18:22,924 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 23:18:22,924 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:18:22,924 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1476501173] [2021-11-20 23:18:22,924 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-20 23:18:22,924 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1248803278] [2021-11-20 23:18:22,925 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1248803278] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:18:22,925 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:18:22,925 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 23:18:22,925 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [780166964] [2021-11-20 23:18:22,925 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:18:22,927 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 23:18:22,927 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:18:22,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 23:18:22,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 23:18:22,928 INFO L87 Difference]: Start difference. First operand 429 states and 514 transitions. Second operand has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 3 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-11-20 23:18:24,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:18:24,078 INFO L93 Difference]: Finished difference Result 719 states and 867 transitions. [2021-11-20 23:18:24,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 23:18:24,079 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 3 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 96 [2021-11-20 23:18:24,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:18:24,082 INFO L225 Difference]: With dead ends: 719 [2021-11-20 23:18:24,082 INFO L226 Difference]: Without dead ends: 351 [2021-11-20 23:18:24,083 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-20 23:18:24,084 INFO L933 BasicCegarLoop]: 249 mSDtfsCounter, 438 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 438 SdHoareTripleChecker+Valid, 334 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2021-11-20 23:18:24,085 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [438 Valid, 334 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2021-11-20 23:18:24,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 351 states. [2021-11-20 23:18:24,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 351 to 351. [2021-11-20 23:18:24,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 351 states, 330 states have (on average 1.1666666666666667) internal successors, (385), 335 states have internal predecessors, (385), 17 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (16), 13 states have call predecessors, (16), 16 states have call successors, (16) [2021-11-20 23:18:24,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 351 states to 351 states and 418 transitions. [2021-11-20 23:18:24,105 INFO L78 Accepts]: Start accepts. Automaton has 351 states and 418 transitions. Word has length 96 [2021-11-20 23:18:24,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:18:24,106 INFO L470 AbstractCegarLoop]: Abstraction has 351 states and 418 transitions. [2021-11-20 23:18:24,106 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 3 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-11-20 23:18:24,107 INFO L276 IsEmpty]: Start isEmpty. Operand 351 states and 418 transitions. [2021-11-20 23:18:24,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2021-11-20 23:18:24,108 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:18:24,108 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:18:24,151 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66ba6bff-d5bd-4db4-b625-ca08167c6d7d/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-20 23:18:24,323 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66ba6bff-d5bd-4db4-b625-ca08167c6d7d/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2021-11-20 23:18:24,323 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 23:18:24,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:18:24,324 INFO L85 PathProgramCache]: Analyzing trace with hash -1222209427, now seen corresponding path program 1 times [2021-11-20 23:18:24,324 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:18:24,324 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1858783408] [2021-11-20 23:18:24,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:18:24,324 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:18:24,357 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-20 23:18:24,358 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [985206199] [2021-11-20 23:18:24,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:18:24,359 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 23:18:24,359 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66ba6bff-d5bd-4db4-b625-ca08167c6d7d/bin/utaipan-TEXQjIfE4P/z3 [2021-11-20 23:18:24,362 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66ba6bff-d5bd-4db4-b625-ca08167c6d7d/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 23:18:24,383 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66ba6bff-d5bd-4db4-b625-ca08167c6d7d/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-20 23:25:14,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:25:14,595 INFO L263 TraceCheckSpWp]: Trace formula consists of 558 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-20 23:25:14,601 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 23:25:14,840 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-20 23:25:14,841 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 23:25:14,841 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:25:14,841 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1858783408] [2021-11-20 23:25:14,841 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-20 23:25:14,841 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [985206199] [2021-11-20 23:25:14,842 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [985206199] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:25:14,842 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:25:14,842 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 23:25:14,842 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1825327275] [2021-11-20 23:25:14,842 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:25:14,845 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 23:25:14,845 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:25:14,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 23:25:14,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 23:25:14,846 INFO L87 Difference]: Start difference. First operand 351 states and 418 transitions. Second operand has 4 states, 3 states have (on average 29.666666666666668) internal successors, (89), 4 states have internal predecessors, (89), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2021-11-20 23:25:19,133 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.57s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 23:25:19,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:25:19,203 INFO L93 Difference]: Finished difference Result 684 states and 823 transitions. [2021-11-20 23:25:19,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 23:25:19,204 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 29.666666666666668) internal successors, (89), 4 states have internal predecessors, (89), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 103 [2021-11-20 23:25:19,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:25:19,207 INFO L225 Difference]: With dead ends: 684 [2021-11-20 23:25:19,207 INFO L226 Difference]: Without dead ends: 353 [2021-11-20 23:25:19,208 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-20 23:25:19,209 INFO L933 BasicCegarLoop]: 271 mSDtfsCounter, 1 mSDsluCounter, 589 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 806 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2021-11-20 23:25:19,209 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 806 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2021-11-20 23:25:19,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 353 states. [2021-11-20 23:25:19,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 353 to 353. [2021-11-20 23:25:19,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 353 states, 331 states have (on average 1.1691842900302114) internal successors, (387), 337 states have internal predecessors, (387), 17 states have call successors, (17), 3 states have call predecessors, (17), 4 states have return successors, (19), 13 states have call predecessors, (19), 16 states have call successors, (19) [2021-11-20 23:25:19,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 353 states to 353 states and 423 transitions. [2021-11-20 23:25:19,231 INFO L78 Accepts]: Start accepts. Automaton has 353 states and 423 transitions. Word has length 103 [2021-11-20 23:25:19,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:25:19,232 INFO L470 AbstractCegarLoop]: Abstraction has 353 states and 423 transitions. [2021-11-20 23:25:19,232 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 29.666666666666668) internal successors, (89), 4 states have internal predecessors, (89), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2021-11-20 23:25:19,232 INFO L276 IsEmpty]: Start isEmpty. Operand 353 states and 423 transitions. [2021-11-20 23:25:19,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-11-20 23:25:19,234 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:25:19,234 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:25:19,398 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66ba6bff-d5bd-4db4-b625-ca08167c6d7d/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-11-20 23:25:19,447 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66ba6bff-d5bd-4db4-b625-ca08167c6d7d/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 23:25:19,447 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 23:25:19,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:25:19,448 INFO L85 PathProgramCache]: Analyzing trace with hash 221127857, now seen corresponding path program 1 times [2021-11-20 23:25:19,448 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:25:19,448 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1976180088] [2021-11-20 23:25:19,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:25:19,448 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:25:19,471 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-20 23:25:19,471 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [716497133] [2021-11-20 23:25:19,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:25:19,471 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 23:25:19,472 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66ba6bff-d5bd-4db4-b625-ca08167c6d7d/bin/utaipan-TEXQjIfE4P/z3 [2021-11-20 23:25:19,477 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66ba6bff-d5bd-4db4-b625-ca08167c6d7d/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 23:25:19,478 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66ba6bff-d5bd-4db4-b625-ca08167c6d7d/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-11-20 23:28:20,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:28:20,778 INFO L263 TraceCheckSpWp]: Trace formula consists of 582 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-20 23:28:20,783 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 23:28:21,004 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 20 proven. 1 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2021-11-20 23:28:21,004 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 23:28:21,357 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 2 proven. 16 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-20 23:28:21,358 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:28:21,358 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1976180088] [2021-11-20 23:28:21,358 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-20 23:28:21,358 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [716497133] [2021-11-20 23:28:21,358 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [716497133] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-20 23:28:21,359 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [311279517] [2021-11-20 23:28:21,386 INFO L159 IcfgInterpreter]: Started Sifa with 93 locations of interest [2021-11-20 23:28:21,386 INFO L166 IcfgInterpreter]: Building call graph [2021-11-20 23:28:21,391 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-20 23:28:21,396 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-20 23:28:21,397 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-20 23:28:21,671 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:28:21,691 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-20 23:28:21,692 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 [2021-11-20 23:28:21,716 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:28:21,717 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2021-11-20 23:28:21,743 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 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 [2021-11-20 23:28:21,760 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 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 [2021-11-20 23:28:21,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:28:21,776 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 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 [2021-11-20 23:28:21,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:28:21,966 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 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 [2021-11-20 23:28:21,985 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:28:21,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:28:21,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:28:21,994 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:28:21,996 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:28:22,014 INFO L354 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2021-11-20 23:28:22,014 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 1 case distinctions, treesize of input 52 treesize of output 53 [2021-11-20 23:28:22,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:28:22,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:28:22,060 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:28:22,096 INFO L354 Elim1Store]: treesize reduction 44, result has 30.2 percent of original size [2021-11-20 23:28:22,097 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 [2021-11-20 23:28:22,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:28:22,149 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 [2021-11-20 23:28:22,177 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:28:22,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:28:22,185 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-20 23:28:22,185 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 [2021-11-20 23:28:23,962 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:28:23,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:28:23,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:28:23,967 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:28:23,969 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:28:23,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:28:23,971 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:28:23,972 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:28:23,973 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:28:23,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:28:23,976 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 [2021-11-20 23:28:23,996 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:28:23,997 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:28:23,998 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:28:23,999 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:28:24,000 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:28:24,002 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:28:24,003 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:28:24,004 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:28:24,005 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:28:24,006 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:28:24,009 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 74 treesize of output 76 [2021-11-20 23:28:24,078 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:28:24,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:28:24,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:28:24,082 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 [2021-11-20 23:28:24,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:28:24,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:28:24,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:28:24,146 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 [2021-11-20 23:28:24,208 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:28:24,209 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:28:24,210 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:28:24,212 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 [2021-11-20 23:28:24,253 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:28:24,254 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:28:24,255 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:28:24,257 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 [2021-11-20 23:28:24,295 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:28:24,296 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:28:24,297 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:28:24,298 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:28:24,299 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:28:24,301 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:28:24,302 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:28:24,303 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:28:24,304 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:28:24,305 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:28:24,306 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:28:24,307 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:28:24,309 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:28:24,310 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:28:24,313 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 14 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 108 treesize of output 98 [2021-11-20 23:28:24,329 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:28:24,330 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:28:24,331 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:28:24,333 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:28:24,334 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:28:24,335 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:28:24,336 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:28:24,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:28:24,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:28:24,339 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:28:24,340 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:28:24,341 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:28:24,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:28:24,344 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:28:24,347 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 14 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 77 [2021-11-20 23:28:24,511 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:28:24,513 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:28:24,516 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:28:24,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:28:24,518 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:28:24,519 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:28:24,524 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 [2021-11-20 23:28:24,577 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:28:24,579 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:28:24,580 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:28:24,582 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:28:24,583 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:28:24,584 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:28:24,585 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:28:24,586 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:28:24,587 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:28:24,588 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:28:24,589 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:28:24,591 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:28:24,593 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:28:24,595 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:28:24,596 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:28:24,597 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:28:24,602 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-20 23:28:24,603 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 [2021-11-20 23:28:24,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:28:24,691 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:28:24,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:28:24,693 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:28:24,694 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:28:24,695 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:28:24,697 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 [2021-11-20 23:28:24,716 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:28:24,718 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:28:24,719 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:28:24,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:28:24,824 INFO L354 Elim1Store]: treesize reduction 194, result has 22.4 percent of original size [2021-11-20 23:28:24,824 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 [2021-11-20 23:28:24,839 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:28:24,842 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:28:24,844 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:28:24,894 INFO L354 Elim1Store]: treesize reduction 120, result has 14.9 percent of original size [2021-11-20 23:28:24,894 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 [2021-11-20 23:28:25,504 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 [2021-11-20 23:28:25,514 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 [2021-11-20 23:28:25,524 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 [2021-11-20 23:28:25,574 INFO L354 Elim1Store]: treesize reduction 19, result has 36.7 percent of original size [2021-11-20 23:28:25,574 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 [2021-11-20 23:28:25,599 INFO L354 Elim1Store]: treesize reduction 21, result has 34.4 percent of original size [2021-11-20 23:28:25,599 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 [2021-11-20 23:28:25,625 INFO L354 Elim1Store]: treesize reduction 19, result has 36.7 percent of original size [2021-11-20 23:28:25,625 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 [2021-11-20 23:28:25,750 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 [2021-11-20 23:28:25,760 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 [2021-11-20 23:28:25,769 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 [2021-11-20 23:28:25,878 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:28:25,879 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:28:25,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:28:25,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:28:25,882 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:28:25,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:28:25,885 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 [2021-11-20 23:28:25,917 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:28:25,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:28:25,919 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:28:25,921 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:28:25,922 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:28:25,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:28:25,924 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:28:25,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:28:25,926 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:28:25,927 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:28:25,929 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 [2021-11-20 23:28:25,969 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:28:25,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:28:25,971 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:28:25,972 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:28:25,973 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:28:25,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:28:25,975 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 [2021-11-20 23:28:26,291 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:28:26,292 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:28:26,293 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:28:26,294 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:28:26,296 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:28:26,297 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:28:26,298 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:28:26,299 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:28:26,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:28:26,301 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 [2021-11-20 23:28:26,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:28:26,329 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:28:26,330 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:28:26,331 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:28:26,332 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:28:26,333 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:28:26,334 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 [2021-11-20 23:28:26,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:28:26,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:28:26,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:28:26,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:28:26,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:28:26,456 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:28:26,457 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 [2021-11-20 23:28:33,334 WARN L227 SmtUtils]: Spent 6.73s 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) [2021-11-20 23:28:33,335 INFO L354 Elim1Store]: treesize reduction 348, result has 15.7 percent of original size [2021-11-20 23:28:33,336 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 [2021-11-20 23:28:33,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:28:43,609 WARN L227 SmtUtils]: Spent 10.24s 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) [2021-11-20 23:28:43,610 INFO L354 Elim1Store]: treesize reduction 262, result has 32.6 percent of original size [2021-11-20 23:28:43,611 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 [2021-11-20 23:28:55,410 WARN L227 SmtUtils]: Spent 11.67s on a formula simplification. DAG size of input: 252 DAG size of output: 143 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-20 23:28:55,411 INFO L354 Elim1Store]: treesize reduction 2662, result has 30.3 percent of original size [2021-11-20 23:28:55,412 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 2852 treesize of output 2682 [2021-11-20 23:28:55,997 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:28:55,999 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:28:56,001 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:28:57,474 INFO L354 Elim1Store]: treesize reduction 188, result has 20.0 percent of original size [2021-11-20 23:28:57,476 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 25950 treesize of output 25981 [2021-11-20 23:28:57,612 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:28:57,614 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:28:58,284 INFO L354 Elim1Store]: treesize reduction 126, result has 17.1 percent of original size [2021-11-20 23:28:58,285 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 25960 treesize of output 25974 [2021-11-20 23:28:59,863 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-20 23:28:59,991 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-20 23:29:00,431 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-20 23:29:00,649 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:29:00,700 INFO L354 Elim1Store]: treesize reduction 28, result has 3.4 percent of original size [2021-11-20 23:29:00,701 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 36 treesize of output 20 [2021-11-20 23:29:01,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:29:01,409 INFO L354 Elim1Store]: treesize reduction 11, result has 56.0 percent of original size [2021-11-20 23:29:01,409 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 46 treesize of output 44 [2021-11-20 23:29:02,242 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:29:02,261 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:29:02,263 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:29:02,276 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:29:02,278 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:29:02,287 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:29:02,309 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:29:02,323 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:29:02,335 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:29:02,337 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 817 treesize of output 369 [2021-11-20 23:29:03,093 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:29:03,100 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:29:03,101 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:29:03,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:29:03,109 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:29:03,118 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:29:03,124 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:29:03,132 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:29:03,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:29:03,140 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 815 treesize of output 365 [2021-11-20 23:29:03,480 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-20 23:29:04,192 INFO L244 Elim1Store]: Index analysis took 250 ms [2021-11-20 23:29:05,720 INFO L354 Elim1Store]: treesize reduction 520, result has 72.0 percent of original size [2021-11-20 23:29:05,720 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 826 treesize of output 1708 [2021-11-20 23:29:07,354 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:29:07,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:29:07,366 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:29:07,383 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:29:07,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:29:08,086 INFO L354 Elim1Store]: treesize reduction 360, result has 68.8 percent of original size [2021-11-20 23:29:08,087 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 805 treesize of output 1161 [2021-11-20 23:29:08,549 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-20 23:29:09,076 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:29:09,112 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:29:09,125 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:29:09,126 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:29:09,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:29:09,160 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:29:09,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:29:09,188 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:29:09,189 INFO L244 Elim1Store]: Index analysis took 114 ms [2021-11-20 23:29:09,352 INFO L354 Elim1Store]: treesize reduction 4, result has 98.2 percent of original size [2021-11-20 23:29:09,353 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 1 case distinctions, treesize of input 805 treesize of output 583 [2021-11-20 23:29:09,580 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-20 23:29:11,882 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:29:11,912 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:29:11,913 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:29:11,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:29:11,925 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:29:11,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:29:11,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:29:11,987 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:29:12,012 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:29:12,012 INFO L244 Elim1Store]: Index analysis took 132 ms [2021-11-20 23:29:12,014 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 817 treesize of output 369 [2021-11-20 23:29:12,577 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:29:12,590 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:29:12,591 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:29:12,608 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:29:12,620 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:29:12,621 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 796 treesize of output 366 [2021-11-20 23:29:13,265 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:29:13,277 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:29:13,277 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:29:13,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:29:13,289 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:29:13,298 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:29:13,312 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:29:13,319 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:29:13,370 INFO L354 Elim1Store]: treesize reduction 15, result has 6.3 percent of original size [2021-11-20 23:29:13,370 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 817 treesize of output 369 [2021-11-20 23:29:14,478 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:29:14,502 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:29:14,504 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:29:14,516 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:29:14,517 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:29:14,562 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:29:14,573 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:29:14,586 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:29:14,586 INFO L244 Elim1Store]: Index analysis took 111 ms [2021-11-20 23:29:14,686 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-20 23:29:14,686 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 1 case distinctions, treesize of input 749 treesize of output 559 [2021-11-20 23:29:14,929 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-20 23:29:15,224 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:29:15,233 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:29:15,233 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:29:15,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:29:15,257 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:29:15,258 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 728 treesize of output 366 [2021-11-20 23:29:15,579 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-20 23:29:17,009 INFO L354 Elim1Store]: treesize reduction 16, result has 61.0 percent of original size [2021-11-20 23:29:17,009 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 1660 treesize of output 1668 [2021-11-20 23:29:17,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:29:17,638 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 41 [2021-11-20 23:29:18,222 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:29:18,231 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-20 23:29:18,232 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 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 23 treesize of output 13 [2021-11-20 23:29:18,646 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:29:18,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:29:18,673 INFO L354 Elim1Store]: treesize reduction 13, result has 7.1 percent of original size [2021-11-20 23:29:18,674 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 2 case distinctions, treesize of input 32 treesize of output 16 [2021-11-20 23:29:19,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:29:19,253 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:29:19,263 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:29:19,264 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 69 treesize of output 47 [2021-11-20 23:29:26,407 INFO L190 IndexEqualityManager]: detected not equals via solver