./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test9-2.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_462812d2-a962-471b-9092-6d258dedd74f/bin/utaipan-TEXQjIfE4P/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_462812d2-a962-471b-9092-6d258dedd74f/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_462812d2-a962-471b-9092-6d258dedd74f/bin/utaipan-TEXQjIfE4P/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_462812d2-a962-471b-9092-6d258dedd74f/bin/utaipan-TEXQjIfE4P/config/TaipanReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test9-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_462812d2-a962-471b-9092-6d258dedd74f/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_462812d2-a962-471b-9092-6d258dedd74f/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 50ec0e1b32f61b9ee697cf2c7598d178ee7b7b08e68108a0f594c4a6a80ab80c --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-20 23:36:39,394 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-20 23:36:39,398 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-20 23:36:39,468 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-20 23:36:39,469 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-20 23:36:39,475 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-20 23:36:39,477 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-20 23:36:39,482 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-20 23:36:39,486 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-20 23:36:39,493 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-20 23:36:39,495 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-20 23:36:39,497 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-20 23:36:39,498 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-20 23:36:39,501 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-20 23:36:39,504 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-20 23:36:39,510 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-20 23:36:39,517 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-20 23:36:39,519 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-20 23:36:39,522 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-20 23:36:39,535 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-20 23:36:39,538 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-20 23:36:39,540 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-20 23:36:39,544 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-20 23:36:39,546 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-20 23:36:39,558 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-20 23:36:39,558 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-20 23:36:39,559 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-20 23:36:39,562 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-20 23:36:39,563 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-20 23:36:39,565 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-20 23:36:39,565 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-20 23:36:39,567 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-20 23:36:39,570 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-20 23:36:39,571 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-20 23:36:39,573 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-20 23:36:39,574 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-20 23:36:39,575 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-20 23:36:39,575 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-20 23:36:39,576 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-20 23:36:39,577 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-20 23:36:39,579 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-20 23:36:39,580 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_462812d2-a962-471b-9092-6d258dedd74f/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-20 23:36:39,638 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-20 23:36:39,639 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-20 23:36:39,640 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-20 23:36:39,640 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-20 23:36:39,649 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-20 23:36:39,650 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-20 23:36:39,650 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-20 23:36:39,650 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-20 23:36:39,650 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-20 23:36:39,651 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-20 23:36:39,652 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-20 23:36:39,652 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-20 23:36:39,653 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-20 23:36:39,653 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-20 23:36:39,653 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-20 23:36:39,654 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-20 23:36:39,654 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-20 23:36:39,654 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-20 23:36:39,655 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-20 23:36:39,655 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-20 23:36:39,656 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-20 23:36:39,656 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-20 23:36:39,656 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-20 23:36:39,657 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-20 23:36:39,657 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-20 23:36:39,657 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-20 23:36:39,659 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-20 23:36:39,659 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-20 23:36:39,660 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-20 23:36:39,660 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-20 23:36:39,660 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-20 23:36:39,661 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-20 23:36:39,661 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 23:36:39,661 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-20 23:36:39,662 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-20 23:36:39,662 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-20 23:36:39,662 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-20 23:36:39,663 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-20 23:36:39,663 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-20 23:36:39,663 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-20 23:36:39,663 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-20 23:36:39,664 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_462812d2-a962-471b-9092-6d258dedd74f/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_462812d2-a962-471b-9092-6d258dedd74f/bin/utaipan-TEXQjIfE4P Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 50ec0e1b32f61b9ee697cf2c7598d178ee7b7b08e68108a0f594c4a6a80ab80c [2021-11-20 23:36:39,990 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-20 23:36:40,017 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-20 23:36:40,021 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-20 23:36:40,023 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-20 23:36:40,024 INFO L275 PluginConnector]: CDTParser initialized [2021-11-20 23:36:40,026 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_462812d2-a962-471b-9092-6d258dedd74f/bin/utaipan-TEXQjIfE4P/../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test9-2.i [2021-11-20 23:36:40,101 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_462812d2-a962-471b-9092-6d258dedd74f/bin/utaipan-TEXQjIfE4P/data/185aa2c4e/f709262daa2c4c1da64f67a842f98b5b/FLAGca54d3630 [2021-11-20 23:36:40,964 INFO L306 CDTParser]: Found 1 translation units. [2021-11-20 23:36:40,965 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_462812d2-a962-471b-9092-6d258dedd74f/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test9-2.i [2021-11-20 23:36:40,991 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_462812d2-a962-471b-9092-6d258dedd74f/bin/utaipan-TEXQjIfE4P/data/185aa2c4e/f709262daa2c4c1da64f67a842f98b5b/FLAGca54d3630 [2021-11-20 23:36:41,015 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_462812d2-a962-471b-9092-6d258dedd74f/bin/utaipan-TEXQjIfE4P/data/185aa2c4e/f709262daa2c4c1da64f67a842f98b5b [2021-11-20 23:36:41,019 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-20 23:36:41,021 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-20 23:36:41,023 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-20 23:36:41,024 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-20 23:36:41,028 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-20 23:36:41,029 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:36:41" (1/1) ... [2021-11-20 23:36:41,031 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2df5cc10 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:36:41, skipping insertion in model container [2021-11-20 23:36:41,032 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:36:41" (1/1) ... [2021-11-20 23:36:41,041 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-20 23:36:41,133 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-20 23:36:41,875 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_462812d2-a962-471b-9092-6d258dedd74f/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test9-2.i[33021,33034] [2021-11-20 23:36:42,241 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_462812d2-a962-471b-9092-6d258dedd74f/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test9-2.i[84583,84596] [2021-11-20 23:36:42,274 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 23:36:42,293 INFO L203 MainTranslator]: Completed pre-run [2021-11-20 23:36:42,342 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_462812d2-a962-471b-9092-6d258dedd74f/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test9-2.i[33021,33034] [2021-11-20 23:36:42,556 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_462812d2-a962-471b-9092-6d258dedd74f/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test9-2.i[84583,84596] [2021-11-20 23:36:42,579 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 23:36:42,642 INFO L208 MainTranslator]: Completed translation [2021-11-20 23:36:42,643 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:36:42 WrapperNode [2021-11-20 23:36:42,643 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-20 23:36:42,645 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-20 23:36:42,645 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-20 23:36:42,645 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-20 23:36:42,655 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:36:42" (1/1) ... [2021-11-20 23:36:42,783 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:36:42" (1/1) ... [2021-11-20 23:36:42,952 INFO L137 Inliner]: procedures = 177, calls = 781, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 3019 [2021-11-20 23:36:42,953 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-20 23:36:42,954 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-20 23:36:42,954 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-20 23:36:42,954 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-20 23:36:42,966 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:36:42" (1/1) ... [2021-11-20 23:36:42,966 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:36:42" (1/1) ... [2021-11-20 23:36:42,978 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:36:42" (1/1) ... [2021-11-20 23:36:42,978 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:36:42" (1/1) ... [2021-11-20 23:36:43,081 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:36:42" (1/1) ... [2021-11-20 23:36:43,138 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:36:42" (1/1) ... [2021-11-20 23:36:43,154 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:36:42" (1/1) ... [2021-11-20 23:36:43,180 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-20 23:36:43,181 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-20 23:36:43,181 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-20 23:36:43,182 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-20 23:36:43,183 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:36:42" (1/1) ... [2021-11-20 23:36:43,193 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 23:36:43,206 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_462812d2-a962-471b-9092-6d258dedd74f/bin/utaipan-TEXQjIfE4P/z3 [2021-11-20 23:36:43,221 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_462812d2-a962-471b-9092-6d258dedd74f/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-20 23:36:43,248 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_462812d2-a962-471b-9092-6d258dedd74f/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-20 23:36:43,293 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-20 23:36:43,294 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-20 23:36:43,294 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-20 23:36:43,294 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-20 23:36:43,294 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-20 23:36:43,295 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-20 23:36:43,295 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-20 23:36:43,295 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-20 23:36:43,295 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-20 23:36:43,295 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-20 23:36:43,296 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-20 23:36:43,296 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-20 23:36:43,296 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-20 23:36:43,296 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-20 23:36:43,297 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-20 23:36:43,297 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-20 23:36:43,624 INFO L236 CfgBuilder]: Building ICFG [2021-11-20 23:36:43,626 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-20 23:36:46,912 INFO L277 CfgBuilder]: Performing block encoding [2021-11-20 23:36:47,685 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-20 23:36:47,685 INFO L301 CfgBuilder]: Removed 63 assume(true) statements. [2021-11-20 23:36:47,693 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:36:47 BoogieIcfgContainer [2021-11-20 23:36:47,693 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-20 23:36:47,698 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-20 23:36:47,698 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-20 23:36:47,702 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-20 23:36:47,703 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 11:36:41" (1/3) ... [2021-11-20 23:36:47,704 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c8ebc5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:36:47, skipping insertion in model container [2021-11-20 23:36:47,704 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:36:42" (2/3) ... [2021-11-20 23:36:47,705 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c8ebc5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:36:47, skipping insertion in model container [2021-11-20 23:36:47,705 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:36:47" (3/3) ... [2021-11-20 23:36:47,707 INFO L111 eAbstractionObserver]: Analyzing ICFG uthash_BER_test9-2.i [2021-11-20 23:36:47,720 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-20 23:36:47,721 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-11-20 23:36:47,805 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-20 23:36:47,815 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 23:36:47,815 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-11-20 23:36:47,891 INFO L276 IsEmpty]: Start isEmpty. Operand has 1113 states, 605 states have (on average 1.9636363636363636) internal successors, (1188), 1107 states have internal predecessors, (1188), 503 states have call successors, (503), 2 states have call predecessors, (503), 2 states have return successors, (503), 4 states have call predecessors, (503), 503 states have call successors, (503) [2021-11-20 23:36:47,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-20 23:36:47,896 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:36:47,897 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:36:47,898 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 23:36:47,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:36:47,905 INFO L85 PathProgramCache]: Analyzing trace with hash -258845898, now seen corresponding path program 1 times [2021-11-20 23:36:47,920 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:36:47,922 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [411727112] [2021-11-20 23:36:47,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:36:47,924 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:36:48,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:36:48,108 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 23:36:48,108 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:36:48,109 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [411727112] [2021-11-20 23:36:48,110 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [411727112] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:36:48,110 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:36:48,111 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-20 23:36:48,113 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2048950243] [2021-11-20 23:36:48,114 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:36:48,119 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-20 23:36:48,119 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:36:48,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-20 23:36:48,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-20 23:36:48,161 INFO L87 Difference]: Start difference. First operand has 1113 states, 605 states have (on average 1.9636363636363636) internal successors, (1188), 1107 states have internal predecessors, (1188), 503 states have call successors, (503), 2 states have call predecessors, (503), 2 states have return successors, (503), 4 states have call predecessors, (503), 503 states have call successors, (503) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:36:49,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:36:49,058 INFO L93 Difference]: Finished difference Result 2225 states and 4887 transitions. [2021-11-20 23:36:49,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-20 23:36:49,069 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2021-11-20 23:36:49,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:36:49,115 INFO L225 Difference]: With dead ends: 2225 [2021-11-20 23:36:49,115 INFO L226 Difference]: Without dead ends: 1097 [2021-11-20 23:36:49,140 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 23:36:49,145 INFO L933 BasicCegarLoop]: 2111 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2111 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-11-20 23:36:49,146 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 2111 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-11-20 23:36:49,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1097 states. [2021-11-20 23:36:49,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1097 to 1097. [2021-11-20 23:36:49,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1097 states, 590 states have (on average 1.8745762711864407) internal successors, (1106), 1091 states have internal predecessors, (1106), 503 states have call successors, (503), 2 states have call predecessors, (503), 2 states have return successors, (503), 4 states have call predecessors, (503), 503 states have call successors, (503) [2021-11-20 23:36:49,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1097 states to 1097 states and 2112 transitions. [2021-11-20 23:36:49,826 INFO L78 Accepts]: Start accepts. Automaton has 1097 states and 2112 transitions. Word has length 8 [2021-11-20 23:36:49,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:36:49,827 INFO L470 AbstractCegarLoop]: Abstraction has 1097 states and 2112 transitions. [2021-11-20 23:36:49,827 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:36:49,827 INFO L276 IsEmpty]: Start isEmpty. Operand 1097 states and 2112 transitions. [2021-11-20 23:36:49,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-11-20 23:36:49,829 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:36:49,830 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:36:49,830 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-20 23:36:49,831 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 23:36:49,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:36:49,832 INFO L85 PathProgramCache]: Analyzing trace with hash -1120515419, now seen corresponding path program 1 times [2021-11-20 23:36:49,832 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:36:49,832 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1581806914] [2021-11-20 23:36:49,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:36:49,833 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:36:49,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:36:49,982 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 23:36:49,984 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:36:49,984 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1581806914] [2021-11-20 23:36:49,985 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1581806914] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:36:49,985 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:36:49,985 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-20 23:36:49,987 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1410969812] [2021-11-20 23:36:49,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:36:49,989 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 23:36:49,989 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:36:49,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 23:36:49,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 23:36:49,994 INFO L87 Difference]: Start difference. First operand 1097 states and 2112 transitions. Second operand has 4 states, 4 states have (on average 5.0) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:36:53,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:36:53,845 INFO L93 Difference]: Finished difference Result 3192 states and 6222 transitions. [2021-11-20 23:36:53,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 23:36:53,858 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2021-11-20 23:36:53,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:36:53,888 INFO L225 Difference]: With dead ends: 3192 [2021-11-20 23:36:53,890 INFO L226 Difference]: Without dead ends: 2148 [2021-11-20 23:36:53,907 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 23:36:53,910 INFO L933 BasicCegarLoop]: 2589 mSDtfsCounter, 1056 mSDsluCounter, 4177 mSDsCounter, 0 mSdLazyCounter, 580 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1556 SdHoareTripleChecker+Valid, 6754 SdHoareTripleChecker+Invalid, 582 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 580 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2021-11-20 23:36:53,911 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1556 Valid, 6754 Invalid, 582 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 580 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2021-11-20 23:36:53,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2148 states. [2021-11-20 23:36:54,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2148 to 1099. [2021-11-20 23:36:54,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1099 states, 592 states have (on average 1.8716216216216217) internal successors, (1108), 1093 states have internal predecessors, (1108), 503 states have call successors, (503), 2 states have call predecessors, (503), 2 states have return successors, (503), 4 states have call predecessors, (503), 503 states have call successors, (503) [2021-11-20 23:36:54,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1099 states to 1099 states and 2114 transitions. [2021-11-20 23:36:54,730 INFO L78 Accepts]: Start accepts. Automaton has 1099 states and 2114 transitions. Word has length 20 [2021-11-20 23:36:54,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:36:54,731 INFO L470 AbstractCegarLoop]: Abstraction has 1099 states and 2114 transitions. [2021-11-20 23:36:54,731 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:36:54,732 INFO L276 IsEmpty]: Start isEmpty. Operand 1099 states and 2114 transitions. [2021-11-20 23:36:54,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-11-20 23:36:54,734 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:36:54,735 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] [2021-11-20 23:36:54,735 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-20 23:36:54,735 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 23:36:54,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:36:54,737 INFO L85 PathProgramCache]: Analyzing trace with hash -440666121, now seen corresponding path program 1 times [2021-11-20 23:36:54,737 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:36:54,737 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [572557333] [2021-11-20 23:36:54,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:36:54,738 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:36:54,766 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-20 23:36:54,767 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1001127411] [2021-11-20 23:36:54,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:36:54,767 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 23:36:54,768 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_462812d2-a962-471b-9092-6d258dedd74f/bin/utaipan-TEXQjIfE4P/z3 [2021-11-20 23:36:54,770 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_462812d2-a962-471b-9092-6d258dedd74f/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 23:36:54,782 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_462812d2-a962-471b-9092-6d258dedd74f/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-20 23:36:55,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:36:55,044 INFO L263 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-20 23:36:55,057 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 23:36:55,387 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 23:36:55,387 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 23:36:55,387 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:36:55,388 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [572557333] [2021-11-20 23:36:55,388 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-20 23:36:55,388 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1001127411] [2021-11-20 23:36:55,389 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1001127411] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:36:55,392 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:36:55,392 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-20 23:36:55,393 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1944229043] [2021-11-20 23:36:55,396 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:36:55,397 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 23:36:55,398 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:36:55,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 23:36:55,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 23:36:55,400 INFO L87 Difference]: Start difference. First operand 1099 states and 2114 transitions. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 2 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:36:57,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:36:57,044 INFO L93 Difference]: Finished difference Result 3230 states and 6264 transitions. [2021-11-20 23:36:57,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 23:36:57,055 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 2 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 44 [2021-11-20 23:36:57,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:36:57,083 INFO L225 Difference]: With dead ends: 3230 [2021-11-20 23:36:57,083 INFO L226 Difference]: Without dead ends: 2134 [2021-11-20 23:36:57,092 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 42 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 23:36:57,093 INFO L933 BasicCegarLoop]: 2612 mSDtfsCounter, 1033 mSDsluCounter, 2092 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1535 SdHoareTripleChecker+Valid, 4693 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2021-11-20 23:36:57,094 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1535 Valid, 4693 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2021-11-20 23:36:57,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2134 states. [2021-11-20 23:36:57,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2134 to 2132. [2021-11-20 23:36:57,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2132 states, 1125 states have (on average 1.9057777777777778) internal successors, (2144), 2126 states have internal predecessors, (2144), 1003 states have call successors, (1003), 2 states have call predecessors, (1003), 2 states have return successors, (1003), 5 states have call predecessors, (1003), 1003 states have call successors, (1003) [2021-11-20 23:36:57,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2132 states to 2132 states and 4150 transitions. [2021-11-20 23:36:57,785 INFO L78 Accepts]: Start accepts. Automaton has 2132 states and 4150 transitions. Word has length 44 [2021-11-20 23:36:57,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:36:57,786 INFO L470 AbstractCegarLoop]: Abstraction has 2132 states and 4150 transitions. [2021-11-20 23:36:57,786 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 2 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:36:57,788 INFO L276 IsEmpty]: Start isEmpty. Operand 2132 states and 4150 transitions. [2021-11-20 23:36:57,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-11-20 23:36:57,801 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:36:57,802 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] [2021-11-20 23:36:57,852 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_462812d2-a962-471b-9092-6d258dedd74f/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-20 23:36:58,028 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_462812d2-a962-471b-9092-6d258dedd74f/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 23:36:58,028 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 23:36:58,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:36:58,029 INFO L85 PathProgramCache]: Analyzing trace with hash -1581662633, now seen corresponding path program 1 times [2021-11-20 23:36:58,030 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:36:58,030 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [503582987] [2021-11-20 23:36:58,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:36:58,030 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:36:58,088 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-20 23:36:58,089 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [453599234] [2021-11-20 23:36:58,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:36:58,089 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 23:36:58,090 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_462812d2-a962-471b-9092-6d258dedd74f/bin/utaipan-TEXQjIfE4P/z3 [2021-11-20 23:36:58,098 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_462812d2-a962-471b-9092-6d258dedd74f/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 23:36:58,128 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_462812d2-a962-471b-9092-6d258dedd74f/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-20 23:36:58,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:36:58,384 INFO L263 TraceCheckSpWp]: Trace formula consists of 314 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-20 23:36:58,390 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 23:36:58,631 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 23:36:58,632 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 23:36:58,632 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:36:58,632 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [503582987] [2021-11-20 23:36:58,632 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-20 23:36:58,635 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [453599234] [2021-11-20 23:36:58,637 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [453599234] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:36:58,640 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:36:58,640 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 23:36:58,641 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1881056657] [2021-11-20 23:36:58,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:36:58,642 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 23:36:58,642 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:36:58,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 23:36:58,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 23:36:58,643 INFO L87 Difference]: Start difference. First operand 2132 states and 4150 transitions. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-20 23:37:01,371 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 23:37:03,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:37:03,833 INFO L93 Difference]: Finished difference Result 7400 states and 14461 transitions. [2021-11-20 23:37:03,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 23:37:03,834 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 57 [2021-11-20 23:37:03,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:37:03,899 INFO L225 Difference]: With dead ends: 7400 [2021-11-20 23:37:03,900 INFO L226 Difference]: Without dead ends: 5284 [2021-11-20 23:37:03,919 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 55 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 23:37:03,922 INFO L933 BasicCegarLoop]: 3093 mSDtfsCounter, 3215 mSDsluCounter, 5715 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 1003 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3716 SdHoareTripleChecker+Valid, 8787 SdHoareTripleChecker+Invalid, 1092 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1003 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2021-11-20 23:37:03,924 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3716 Valid, 8787 Invalid, 1092 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1003 Valid, 88 Invalid, 1 Unknown, 0 Unchecked, 4.7s Time] [2021-11-20 23:37:03,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5284 states. [2021-11-20 23:37:05,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5284 to 3205. [2021-11-20 23:37:05,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3205 states, 1697 states have (on average 1.9021803182086034) internal successors, (3228), 3198 states have internal predecessors, (3228), 1504 states have call successors, (1504), 2 states have call predecessors, (1504), 2 states have return successors, (1504), 7 states have call predecessors, (1504), 1504 states have call successors, (1504) [2021-11-20 23:37:05,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3205 states to 3205 states and 6236 transitions. [2021-11-20 23:37:05,256 INFO L78 Accepts]: Start accepts. Automaton has 3205 states and 6236 transitions. Word has length 57 [2021-11-20 23:37:05,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:37:05,257 INFO L470 AbstractCegarLoop]: Abstraction has 3205 states and 6236 transitions. [2021-11-20 23:37:05,258 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-20 23:37:05,258 INFO L276 IsEmpty]: Start isEmpty. Operand 3205 states and 6236 transitions. [2021-11-20 23:37:05,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-11-20 23:37:05,259 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:37:05,259 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] [2021-11-20 23:37:05,312 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_462812d2-a962-471b-9092-6d258dedd74f/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-20 23:37:05,472 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_462812d2-a962-471b-9092-6d258dedd74f/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 23:37:05,472 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 23:37:05,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:37:05,474 INFO L85 PathProgramCache]: Analyzing trace with hash -425682233, now seen corresponding path program 1 times [2021-11-20 23:37:05,474 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:37:05,474 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1027722587] [2021-11-20 23:37:05,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:37:05,474 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:37:05,517 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-20 23:37:05,522 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [217105621] [2021-11-20 23:37:05,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:37:05,523 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 23:37:05,523 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_462812d2-a962-471b-9092-6d258dedd74f/bin/utaipan-TEXQjIfE4P/z3 [2021-11-20 23:37:05,525 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_462812d2-a962-471b-9092-6d258dedd74f/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 23:37:05,552 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_462812d2-a962-471b-9092-6d258dedd74f/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-20 23:37:06,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:37:06,601 INFO L263 TraceCheckSpWp]: Trace formula consists of 339 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-20 23:37:06,607 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 23:37:06,793 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-20 23:37:06,793 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 23:37:06,794 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:37:06,794 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1027722587] [2021-11-20 23:37:06,794 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-20 23:37:06,795 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [217105621] [2021-11-20 23:37:06,795 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [217105621] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:37:06,795 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:37:06,795 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 23:37:06,796 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [584974799] [2021-11-20 23:37:06,796 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:37:06,797 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 23:37:06,797 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:37:06,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 23:37:06,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 23:37:06,798 INFO L87 Difference]: Start difference. First operand 3205 states and 6236 transitions. Second operand has 4 states, 3 states have (on average 20.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-20 23:37:09,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:37:09,343 INFO L93 Difference]: Finished difference Result 6396 states and 12461 transitions. [2021-11-20 23:37:09,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 23:37:09,358 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 20.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 64 [2021-11-20 23:37:09,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:37:09,405 INFO L225 Difference]: With dead ends: 6396 [2021-11-20 23:37:09,406 INFO L226 Difference]: Without dead ends: 3207 [2021-11-20 23:37:09,431 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 61 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 23:37:09,433 INFO L933 BasicCegarLoop]: 2097 mSDtfsCounter, 1 mSDsluCounter, 4214 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 6287 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2021-11-20 23:37:09,433 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 6287 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2021-11-20 23:37:09,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3207 states. [2021-11-20 23:37:10,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3207 to 3207. [2021-11-20 23:37:10,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3207 states, 1698 states have (on average 1.9022379269729093) internal successors, (3230), 3200 states have internal predecessors, (3230), 1504 states have call successors, (1504), 2 states have call predecessors, (1504), 3 states have return successors, (1506), 7 states have call predecessors, (1506), 1504 states have call successors, (1506) [2021-11-20 23:37:10,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3207 states to 3207 states and 6240 transitions. [2021-11-20 23:37:10,244 INFO L78 Accepts]: Start accepts. Automaton has 3207 states and 6240 transitions. Word has length 64 [2021-11-20 23:37:10,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:37:10,247 INFO L470 AbstractCegarLoop]: Abstraction has 3207 states and 6240 transitions. [2021-11-20 23:37:10,259 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 20.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-20 23:37:10,270 INFO L276 IsEmpty]: Start isEmpty. Operand 3207 states and 6240 transitions. [2021-11-20 23:37:10,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-11-20 23:37:10,271 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:37:10,272 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:37:10,326 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_462812d2-a962-471b-9092-6d258dedd74f/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-20 23:37:10,492 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_462812d2-a962-471b-9092-6d258dedd74f/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 23:37:10,492 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 23:37:10,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:37:10,493 INFO L85 PathProgramCache]: Analyzing trace with hash 1544494779, now seen corresponding path program 1 times [2021-11-20 23:37:10,493 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:37:10,494 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2002048225] [2021-11-20 23:37:10,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:37:10,494 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:37:10,524 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-20 23:37:10,527 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1513908462] [2021-11-20 23:37:10,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:37:10,528 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 23:37:10,528 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_462812d2-a962-471b-9092-6d258dedd74f/bin/utaipan-TEXQjIfE4P/z3 [2021-11-20 23:37:10,529 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_462812d2-a962-471b-9092-6d258dedd74f/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 23:37:10,560 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_462812d2-a962-471b-9092-6d258dedd74f/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-20 23:37:11,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:37:11,432 INFO L263 TraceCheckSpWp]: Trace formula consists of 351 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-20 23:37:11,435 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 23:37:11,602 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-20 23:37:11,602 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 23:37:11,826 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-20 23:37:11,826 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:37:11,826 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2002048225] [2021-11-20 23:37:11,826 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-20 23:37:11,827 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1513908462] [2021-11-20 23:37:11,827 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1513908462] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-20 23:37:11,827 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1631429102] [2021-11-20 23:37:11,848 INFO L159 IcfgInterpreter]: Started Sifa with 60 locations of interest [2021-11-20 23:37:11,848 INFO L166 IcfgInterpreter]: Building call graph [2021-11-20 23:37:11,853 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-20 23:37:11,858 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-20 23:37:11,859 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-20 23:37:12,083 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 23:37:12,103 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-20 23:37:12,119 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:37:12,138 INFO L354 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2021-11-20 23:37:12,138 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 26 [2021-11-20 23:37:12,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:37:12,163 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2021-11-20 23:37:12,187 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:37:12,188 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:37:12,210 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-20 23:37:12,211 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 23:37:12,376 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:37:12,382 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:37:12,385 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:37:12,386 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:37:12,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:37:12,404 INFO L354 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2021-11-20 23:37:12,405 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 23:37:12,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:37:12,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:37:12,494 INFO L354 Elim1Store]: treesize reduction 28, result has 40.4 percent of original size [2021-11-20 23:37:12,494 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 22 treesize of output 38 [2021-11-20 23:37:12,554 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:37:12,556 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 23:37:12,590 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:37:12,591 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 23:37:12,627 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:37:12,629 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:37:12,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:37:12,633 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:37:12,678 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-11-20 23:37:12,679 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 32 treesize of output 49 [2021-11-20 23:37:14,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:37:14,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:37:14,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:37:14,665 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 23:37:14,710 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:37:14,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:37:14,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:37:14,714 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 23:37:14,838 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:37:14,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:37:14,842 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:37:14,844 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:37:14,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:37:14,847 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:37:14,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:37:14,850 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:37:14,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:37:14,854 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:37:14,856 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 23:37:14,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:37:14,878 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:37:14,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:37:14,882 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:37:14,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:37:14,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:37:14,886 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:37:14,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:37:14,888 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:37:14,891 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 23:37:15,078 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:37:15,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:37:15,082 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:37:15,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:37:15,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:37:15,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:37:15,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:37:15,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:37:15,090 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:37:15,091 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:37:15,092 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:37:15,094 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:37:15,095 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:37:15,097 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 23:37:15,117 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:37:15,118 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:37:15,120 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:37:15,121 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:37:15,122 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:37:15,124 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:37:15,125 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:37:15,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:37:15,128 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:37:15,129 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:37:15,130 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:37:15,131 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:37:15,133 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:37:15,135 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 89 treesize of output 79 [2021-11-20 23:37:15,279 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:37:15,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:37:15,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:37:15,284 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 23:37:15,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:37:15,347 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:37:15,348 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:37:15,349 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 23:37:15,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:37:15,445 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:37:15,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:37:15,448 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:37:15,449 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:37:15,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:37:15,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:37:15,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:37:15,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:37:15,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:37:15,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:37:15,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:37:15,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:37:15,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:37:15,467 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:37:15,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:37:15,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:37:15,477 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-20 23:37:15,478 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 23:37:15,600 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:37:15,602 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:37:15,603 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:37:15,604 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:37:15,606 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:37:15,607 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:37:15,609 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 23:37:15,635 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:37:15,638 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:37:15,640 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:37:15,643 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:37:15,772 INFO L354 Elim1Store]: treesize reduction 194, result has 22.4 percent of original size [2021-11-20 23:37:15,772 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 23:37:15,794 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:37:15,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:37:15,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:37:15,862 INFO L354 Elim1Store]: treesize reduction 120, result has 14.9 percent of original size [2021-11-20 23:37:15,862 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 23:37:16,117 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:37:16,119 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:37:16,120 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:37:16,121 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:37:16,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:37:16,124 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:37:16,133 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 23:37:16,786 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 23:37:16,797 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 23:37:16,806 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 23:37:16,882 INFO L354 Elim1Store]: treesize reduction 19, result has 36.7 percent of original size [2021-11-20 23:37:16,882 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 23:37:16,920 INFO L354 Elim1Store]: treesize reduction 21, result has 34.4 percent of original size [2021-11-20 23:37:16,920 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 23:37:16,957 INFO L354 Elim1Store]: treesize reduction 19, result has 36.7 percent of original size [2021-11-20 23:37:16,958 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 23:37:17,096 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 23:37:17,113 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 23:37:17,131 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 23:37:17,217 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:37:17,219 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:37:17,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:37:17,221 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:37:17,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:37:17,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:37:17,225 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:37:17,227 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:37:17,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:37:17,229 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:37:17,230 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 23:37:17,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:37:17,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:37:17,292 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:37:17,293 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:37:17,295 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:37:17,296 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:37:17,297 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 23:37:17,407 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:37:17,409 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:37:17,410 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:37:17,411 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:37:17,412 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:37:17,414 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:37:17,415 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 23:37:17,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:37:17,854 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:37:17,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:37:17,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:37:17,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:37:17,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:37:17,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:37:17,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:37:17,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:37:17,870 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:37:17,872 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 23:37:17,916 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:37:17,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:37:17,919 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:37:17,920 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:37:17,921 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:37:17,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:37:17,924 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 23:37:17,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:37:17,955 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:37:17,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:37:17,957 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:37:17,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:37:17,959 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:37:17,961 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 23:37:25,978 WARN L227 SmtUtils]: Spent 7.88s 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 23:37:25,979 INFO L354 Elim1Store]: treesize reduction 348, result has 15.7 percent of original size [2021-11-20 23:37:25,979 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 23:37:26,023 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:37:38,494 WARN L227 SmtUtils]: Spent 12.47s 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 23:37:38,495 INFO L354 Elim1Store]: treesize reduction 262, result has 32.6 percent of original size [2021-11-20 23:37:38,496 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 23:37:51,387 WARN L227 SmtUtils]: Spent 12.74s on a formula simplification. DAG size of input: 251 DAG size of output: 142 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-20 23:37:51,389 INFO L354 Elim1Store]: treesize reduction 2750, result has 29.6 percent of original size [2021-11-20 23:37:51,390 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 4 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 16 case distinctions, treesize of input 2916 treesize of output 2686 [2021-11-20 23:37:52,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:37:52,074 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:37:52,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:37:53,118 INFO L354 Elim1Store]: treesize reduction 188, result has 20.0 percent of original size [2021-11-20 23:37:53,119 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 25954 treesize of output 25985 [2021-11-20 23:37:53,418 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:37:53,419 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:37:54,247 INFO L354 Elim1Store]: treesize reduction 126, result has 17.1 percent of original size [2021-11-20 23:37:54,248 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 25964 treesize of output 25978 [2021-11-20 23:37:56,622 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-20 23:37:56,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:37:57,088 INFO L354 Elim1Store]: treesize reduction 32, result has 3.0 percent of original size [2021-11-20 23:37:57,088 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 38 treesize of output 20 [2021-11-20 23:37:57,732 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-20 23:37:57,908 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-20 23:37:58,525 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:37:58,857 INFO L354 Elim1Store]: treesize reduction 15, result has 48.3 percent of original size [2021-11-20 23:37:58,858 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 50 treesize of output 46