./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test9-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46edaeba-8c0b-45f3-aaff-94e438fd5201/bin/utaipan-TEXQjIfE4P/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46edaeba-8c0b-45f3-aaff-94e438fd5201/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_46edaeba-8c0b-45f3-aaff-94e438fd5201/bin/utaipan-TEXQjIfE4P/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46edaeba-8c0b-45f3-aaff-94e438fd5201/bin/utaipan-TEXQjIfE4P/config/TaipanReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test9-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46edaeba-8c0b-45f3-aaff-94e438fd5201/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_46edaeba-8c0b-45f3-aaff-94e438fd5201/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 6698dfe763688c38a478c53cfe3bc6bac092e445bf13ef44be53eb6068218c93 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-21 01:48:12,540 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-21 01:48:12,542 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-21 01:48:12,583 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-21 01:48:12,584 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-21 01:48:12,589 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-21 01:48:12,591 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-21 01:48:12,593 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-21 01:48:12,595 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-21 01:48:12,596 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-21 01:48:12,598 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-21 01:48:12,599 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-21 01:48:12,600 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-21 01:48:12,601 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-21 01:48:12,603 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-21 01:48:12,604 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-21 01:48:12,605 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-21 01:48:12,607 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-21 01:48:12,609 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-21 01:48:12,611 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-21 01:48:12,613 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-21 01:48:12,615 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-21 01:48:12,616 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-21 01:48:12,625 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-21 01:48:12,629 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-21 01:48:12,631 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-21 01:48:12,632 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-21 01:48:12,633 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-21 01:48:12,635 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-21 01:48:12,636 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-21 01:48:12,637 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-21 01:48:12,638 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-21 01:48:12,640 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-21 01:48:12,641 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-21 01:48:12,643 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-21 01:48:12,643 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-21 01:48:12,644 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-21 01:48:12,644 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-21 01:48:12,645 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-21 01:48:12,646 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-21 01:48:12,646 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-21 01:48:12,647 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46edaeba-8c0b-45f3-aaff-94e438fd5201/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-21 01:48:12,697 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-21 01:48:12,699 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-21 01:48:12,700 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-21 01:48:12,700 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-21 01:48:12,701 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-21 01:48:12,707 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-21 01:48:12,708 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-21 01:48:12,708 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-21 01:48:12,708 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-21 01:48:12,708 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-21 01:48:12,710 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-21 01:48:12,710 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-21 01:48:12,710 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-21 01:48:12,710 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-21 01:48:12,710 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-21 01:48:12,711 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-21 01:48:12,711 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-21 01:48:12,711 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-21 01:48:12,712 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-21 01:48:12,712 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-21 01:48:12,712 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-21 01:48:12,713 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-21 01:48:12,713 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-21 01:48:12,713 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-21 01:48:12,713 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-21 01:48:12,714 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-21 01:48:12,715 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-21 01:48:12,715 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-21 01:48:12,716 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-21 01:48:12,716 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-21 01:48:12,716 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-21 01:48:12,717 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-21 01:48:12,717 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 01:48:12,717 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-21 01:48:12,717 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-21 01:48:12,717 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-21 01:48:12,718 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-21 01:48:12,718 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-21 01:48:12,718 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-21 01:48:12,718 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-21 01:48:12,719 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-21 01:48:12,719 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_46edaeba-8c0b-45f3-aaff-94e438fd5201/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46edaeba-8c0b-45f3-aaff-94e438fd5201/bin/utaipan-TEXQjIfE4P Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6698dfe763688c38a478c53cfe3bc6bac092e445bf13ef44be53eb6068218c93 [2021-11-21 01:48:13,007 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-21 01:48:13,033 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-21 01:48:13,036 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-21 01:48:13,037 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-21 01:48:13,038 INFO L275 PluginConnector]: CDTParser initialized [2021-11-21 01:48:13,040 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46edaeba-8c0b-45f3-aaff-94e438fd5201/bin/utaipan-TEXQjIfE4P/../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test9-1.i [2021-11-21 01:48:13,116 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46edaeba-8c0b-45f3-aaff-94e438fd5201/bin/utaipan-TEXQjIfE4P/data/c0bf8a1c9/91794d7fd5c947ef9bd56bb2c949dc6f/FLAG7a8c7ffb3 [2021-11-21 01:48:13,837 INFO L306 CDTParser]: Found 1 translation units. [2021-11-21 01:48:13,838 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46edaeba-8c0b-45f3-aaff-94e438fd5201/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test9-1.i [2021-11-21 01:48:13,873 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46edaeba-8c0b-45f3-aaff-94e438fd5201/bin/utaipan-TEXQjIfE4P/data/c0bf8a1c9/91794d7fd5c947ef9bd56bb2c949dc6f/FLAG7a8c7ffb3 [2021-11-21 01:48:13,918 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46edaeba-8c0b-45f3-aaff-94e438fd5201/bin/utaipan-TEXQjIfE4P/data/c0bf8a1c9/91794d7fd5c947ef9bd56bb2c949dc6f [2021-11-21 01:48:13,920 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-21 01:48:13,922 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-21 01:48:13,923 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-21 01:48:13,923 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-21 01:48:13,926 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-21 01:48:13,927 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 01:48:13" (1/1) ... [2021-11-21 01:48:13,928 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6190d49d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:48:13, skipping insertion in model container [2021-11-21 01:48:13,929 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 01:48:13" (1/1) ... [2021-11-21 01:48:13,936 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-21 01:48:14,011 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-21 01:48:14,541 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_46edaeba-8c0b-45f3-aaff-94e438fd5201/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test9-1.i[33021,33034] [2021-11-21 01:48:14,859 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_46edaeba-8c0b-45f3-aaff-94e438fd5201/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test9-1.i[84583,84596] [2021-11-21 01:48:14,863 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 01:48:14,877 INFO L203 MainTranslator]: Completed pre-run [2021-11-21 01:48:14,926 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_46edaeba-8c0b-45f3-aaff-94e438fd5201/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test9-1.i[33021,33034] [2021-11-21 01:48:15,145 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_46edaeba-8c0b-45f3-aaff-94e438fd5201/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test9-1.i[84583,84596] [2021-11-21 01:48:15,147 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 01:48:15,196 INFO L208 MainTranslator]: Completed translation [2021-11-21 01:48:15,197 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:48:15 WrapperNode [2021-11-21 01:48:15,197 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-21 01:48:15,198 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-21 01:48:15,199 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-21 01:48:15,199 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-21 01:48:15,207 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:48:15" (1/1) ... [2021-11-21 01:48:15,274 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:48:15" (1/1) ... [2021-11-21 01:48:15,406 INFO L137 Inliner]: procedures = 177, calls = 730, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 2864 [2021-11-21 01:48:15,406 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-21 01:48:15,407 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-21 01:48:15,407 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-21 01:48:15,408 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-21 01:48:15,416 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:48:15" (1/1) ... [2021-11-21 01:48:15,417 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:48:15" (1/1) ... [2021-11-21 01:48:15,427 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:48:15" (1/1) ... [2021-11-21 01:48:15,427 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:48:15" (1/1) ... [2021-11-21 01:48:15,482 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:48:15" (1/1) ... [2021-11-21 01:48:15,570 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:48:15" (1/1) ... [2021-11-21 01:48:15,591 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:48:15" (1/1) ... [2021-11-21 01:48:15,623 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-21 01:48:15,625 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-21 01:48:15,625 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-21 01:48:15,625 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-21 01:48:15,626 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:48:15" (1/1) ... [2021-11-21 01:48:15,655 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 01:48:15,677 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46edaeba-8c0b-45f3-aaff-94e438fd5201/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:48:15,698 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46edaeba-8c0b-45f3-aaff-94e438fd5201/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-21 01:48:15,724 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46edaeba-8c0b-45f3-aaff-94e438fd5201/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-21 01:48:15,742 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-21 01:48:15,743 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-21 01:48:15,743 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-21 01:48:15,743 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-21 01:48:15,743 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-21 01:48:15,743 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-21 01:48:15,744 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-21 01:48:15,744 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-21 01:48:15,744 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-21 01:48:15,744 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-21 01:48:15,744 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-21 01:48:15,744 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-21 01:48:15,745 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-21 01:48:15,745 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-21 01:48:15,745 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-21 01:48:15,745 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-21 01:48:15,982 INFO L236 CfgBuilder]: Building ICFG [2021-11-21 01:48:15,984 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-21 01:48:18,126 INFO L277 CfgBuilder]: Performing block encoding [2021-11-21 01:48:18,618 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-21 01:48:18,618 INFO L301 CfgBuilder]: Removed 54 assume(true) statements. [2021-11-21 01:48:18,624 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:48:18 BoogieIcfgContainer [2021-11-21 01:48:18,624 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-21 01:48:18,627 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-21 01:48:18,627 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-21 01:48:18,631 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-21 01:48:18,631 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 01:48:13" (1/3) ... [2021-11-21 01:48:18,633 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52c65691 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 01:48:18, skipping insertion in model container [2021-11-21 01:48:18,633 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:48:15" (2/3) ... [2021-11-21 01:48:18,633 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52c65691 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 01:48:18, skipping insertion in model container [2021-11-21 01:48:18,634 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:48:18" (3/3) ... [2021-11-21 01:48:18,635 INFO L111 eAbstractionObserver]: Analyzing ICFG uthash_BER_test9-1.i [2021-11-21 01:48:18,646 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-21 01:48:18,647 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-11-21 01:48:18,713 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-21 01:48:18,730 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-21 01:48:18,730 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-11-21 01:48:18,796 INFO L276 IsEmpty]: Start isEmpty. Operand has 1099 states, 591 states have (on average 1.9678510998307952) internal successors, (1163), 1093 states have internal predecessors, (1163), 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) [2021-11-21 01:48:18,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-21 01:48:18,800 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:48:18,801 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:48:18,801 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:48:18,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:48:18,808 INFO L85 PathProgramCache]: Analyzing trace with hash 933194323, now seen corresponding path program 1 times [2021-11-21 01:48:18,818 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:48:18,819 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [958381698] [2021-11-21 01:48:18,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:48:18,821 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:48:18,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:48:19,001 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:48:19,002 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:48:19,003 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [958381698] [2021-11-21 01:48:19,004 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [958381698] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:48:19,004 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:48:19,004 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-21 01:48:19,006 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [551738644] [2021-11-21 01:48:19,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:48:19,011 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-21 01:48:19,011 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:48:19,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-21 01:48:19,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-21 01:48:19,050 INFO L87 Difference]: Start difference. First operand has 1099 states, 591 states have (on average 1.9678510998307952) internal successors, (1163), 1093 states have internal predecessors, (1163), 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) [2021-11-21 01:48:19,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:48:19,869 INFO L93 Difference]: Finished difference Result 2197 states and 4837 transitions. [2021-11-21 01:48:19,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-21 01:48:19,881 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2021-11-21 01:48:19,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:48:19,935 INFO L225 Difference]: With dead ends: 2197 [2021-11-21 01:48:19,935 INFO L226 Difference]: Without dead ends: 1097 [2021-11-21 01:48:19,950 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-21 01:48:19,954 INFO L933 BasicCegarLoop]: 2100 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2100 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-11-21 01:48:19,955 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 2100 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-11-21 01:48:19,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1097 states. [2021-11-21 01:48:20,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1097 to 1097. [2021-11-21 01:48:20,383 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) [2021-11-21 01:48:20,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1097 states to 1097 states and 2112 transitions. [2021-11-21 01:48:20,396 INFO L78 Accepts]: Start accepts. Automaton has 1097 states and 2112 transitions. Word has length 8 [2021-11-21 01:48:20,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:48:20,397 INFO L470 AbstractCegarLoop]: Abstraction has 1097 states and 2112 transitions. [2021-11-21 01:48:20,397 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:48:20,397 INFO L276 IsEmpty]: Start isEmpty. Operand 1097 states and 2112 transitions. [2021-11-21 01:48:20,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-11-21 01:48:20,398 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:48:20,399 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:48:20,399 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-21 01:48:20,399 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:48:20,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:48:20,401 INFO L85 PathProgramCache]: Analyzing trace with hash -99314707, now seen corresponding path program 1 times [2021-11-21 01:48:20,402 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:48:20,402 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1534218294] [2021-11-21 01:48:20,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:48:20,402 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:48:20,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:48:20,493 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:48:20,494 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:48:20,494 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1534218294] [2021-11-21 01:48:20,494 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1534218294] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:48:20,494 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:48:20,494 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 01:48:20,495 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [27786240] [2021-11-21 01:48:20,495 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:48:20,496 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 01:48:20,496 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:48:20,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 01:48:20,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 01:48:20,497 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) [2021-11-21 01:48:24,065 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-21 01:48:24,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:48:24,116 INFO L93 Difference]: Finished difference Result 3192 states and 6222 transitions. [2021-11-21 01:48:24,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 01:48:24,148 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2021-11-21 01:48:24,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:48:24,172 INFO L225 Difference]: With dead ends: 3192 [2021-11-21 01:48:24,172 INFO L226 Difference]: Without dead ends: 2148 [2021-11-21 01:48:24,180 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-21 01:48:24,182 INFO L933 BasicCegarLoop]: 2589 mSDtfsCounter, 1056 mSDsluCounter, 4176 mSDsCounter, 0 mSdLazyCounter, 577 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1556 SdHoareTripleChecker+Valid, 6754 SdHoareTripleChecker+Invalid, 580 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 577 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2021-11-21 01:48:24,183 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1556 Valid, 6754 Invalid, 580 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 577 Invalid, 1 Unknown, 0 Unchecked, 3.4s Time] [2021-11-21 01:48:24,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2148 states. [2021-11-21 01:48:24,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2148 to 1099. [2021-11-21 01:48:24,537 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) [2021-11-21 01:48:24,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1099 states to 1099 states and 2114 transitions. [2021-11-21 01:48:24,547 INFO L78 Accepts]: Start accepts. Automaton has 1099 states and 2114 transitions. Word has length 20 [2021-11-21 01:48:24,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:48:24,548 INFO L470 AbstractCegarLoop]: Abstraction has 1099 states and 2114 transitions. [2021-11-21 01:48:24,548 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:48:24,549 INFO L276 IsEmpty]: Start isEmpty. Operand 1099 states and 2114 transitions. [2021-11-21 01:48:24,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-11-21 01:48:24,550 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:48:24,551 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] [2021-11-21 01:48:24,551 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-21 01:48:24,551 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:48:24,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:48:24,552 INFO L85 PathProgramCache]: Analyzing trace with hash 289738723, now seen corresponding path program 1 times [2021-11-21 01:48:24,552 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:48:24,553 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [786169444] [2021-11-21 01:48:24,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:48:24,553 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:48:24,572 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-21 01:48:24,573 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [4964973] [2021-11-21 01:48:24,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:48:24,573 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:48:24,573 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46edaeba-8c0b-45f3-aaff-94e438fd5201/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:48:24,577 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46edaeba-8c0b-45f3-aaff-94e438fd5201/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 01:48:24,600 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46edaeba-8c0b-45f3-aaff-94e438fd5201/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-21 01:48:24,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:48:24,781 INFO L263 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-21 01:48:24,787 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 01:48:24,973 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:48:24,973 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-21 01:48:24,973 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:48:24,974 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [786169444] [2021-11-21 01:48:24,974 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-21 01:48:24,978 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [4964973] [2021-11-21 01:48:24,979 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [4964973] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:48:24,979 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:48:24,979 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-21 01:48:24,980 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [192951445] [2021-11-21 01:48:24,980 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:48:24,981 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 01:48:24,982 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:48:24,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 01:48:24,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:48:24,983 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) [2021-11-21 01:48:26,668 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-21 01:48:26,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:48:26,750 INFO L93 Difference]: Finished difference Result 3230 states and 6264 transitions. [2021-11-21 01:48:26,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 01:48:26,756 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 [2021-11-21 01:48:26,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:48:26,776 INFO L225 Difference]: With dead ends: 3230 [2021-11-21 01:48:26,777 INFO L226 Difference]: Without dead ends: 2134 [2021-11-21 01:48:26,783 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 [2021-11-21 01:48:26,785 INFO L933 BasicCegarLoop]: 2612 mSDtfsCounter, 1033 mSDsluCounter, 2092 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s 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, 1.6s IncrementalHoareTripleChecker+Time [2021-11-21 01:48:26,785 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1535 Valid, 4693 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2021-11-21 01:48:26,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2134 states. [2021-11-21 01:48:27,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2134 to 2132. [2021-11-21 01:48:27,161 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) [2021-11-21 01:48:27,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2132 states to 2132 states and 4150 transitions. [2021-11-21 01:48:27,179 INFO L78 Accepts]: Start accepts. Automaton has 2132 states and 4150 transitions. Word has length 44 [2021-11-21 01:48:27,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:48:27,180 INFO L470 AbstractCegarLoop]: Abstraction has 2132 states and 4150 transitions. [2021-11-21 01:48:27,180 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) [2021-11-21 01:48:27,180 INFO L276 IsEmpty]: Start isEmpty. Operand 2132 states and 4150 transitions. [2021-11-21 01:48:27,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-11-21 01:48:27,183 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:48:27,183 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] [2021-11-21 01:48:27,209 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46edaeba-8c0b-45f3-aaff-94e438fd5201/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-11-21 01:48:27,394 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46edaeba-8c0b-45f3-aaff-94e438fd5201/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:48:27,395 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:48:27,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:48:27,395 INFO L85 PathProgramCache]: Analyzing trace with hash -2064469897, now seen corresponding path program 1 times [2021-11-21 01:48:27,395 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:48:27,396 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [339657813] [2021-11-21 01:48:27,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:48:27,396 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:48:27,417 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-21 01:48:27,418 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [125171381] [2021-11-21 01:48:27,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:48:27,418 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:48:27,418 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46edaeba-8c0b-45f3-aaff-94e438fd5201/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:48:27,419 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46edaeba-8c0b-45f3-aaff-94e438fd5201/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 01:48:27,446 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46edaeba-8c0b-45f3-aaff-94e438fd5201/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-21 01:48:27,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:48:27,654 INFO L263 TraceCheckSpWp]: Trace formula consists of 314 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-21 01:48:27,658 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 01:48:27,843 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-21 01:48:27,843 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-21 01:48:27,843 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:48:27,846 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [339657813] [2021-11-21 01:48:27,846 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-21 01:48:27,850 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [125171381] [2021-11-21 01:48:27,850 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [125171381] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:48:27,850 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:48:27,850 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 01:48:27,850 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [848125298] [2021-11-21 01:48:27,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:48:27,851 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 01:48:27,851 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:48:27,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 01:48:27,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 01:48:27,852 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) [2021-11-21 01:48:29,643 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-21 01:48:30,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:48:30,879 INFO L93 Difference]: Finished difference Result 3228 states and 6261 transitions. [2021-11-21 01:48:30,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 01:48:30,880 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 [2021-11-21 01:48:30,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:48:30,892 INFO L225 Difference]: With dead ends: 3228 [2021-11-21 01:48:30,892 INFO L226 Difference]: Without dead ends: 1112 [2021-11-21 01:48:30,902 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 [2021-11-21 01:48:30,905 INFO L933 BasicCegarLoop]: 2090 mSDtfsCounter, 2143 mSDsluCounter, 1040 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 1003 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2143 SdHoareTripleChecker+Valid, 3126 SdHoareTripleChecker+Invalid, 1052 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1003 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2021-11-21 01:48:30,906 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2143 Valid, 3126 Invalid, 1052 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1003 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2021-11-21 01:48:30,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1112 states. [2021-11-21 01:48:31,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1112 to 1112. [2021-11-21 01:48:31,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1112 states, 605 states have (on average 1.8512396694214877) internal successors, (1120), 1106 states have internal predecessors, (1120), 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) [2021-11-21 01:48:31,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1112 states to 1112 states and 2126 transitions. [2021-11-21 01:48:31,125 INFO L78 Accepts]: Start accepts. Automaton has 1112 states and 2126 transitions. Word has length 57 [2021-11-21 01:48:31,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:48:31,126 INFO L470 AbstractCegarLoop]: Abstraction has 1112 states and 2126 transitions. [2021-11-21 01:48:31,126 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) [2021-11-21 01:48:31,126 INFO L276 IsEmpty]: Start isEmpty. Operand 1112 states and 2126 transitions. [2021-11-21 01:48:31,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-11-21 01:48:31,129 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:48:31,129 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] [2021-11-21 01:48:31,168 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46edaeba-8c0b-45f3-aaff-94e438fd5201/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-21 01:48:31,344 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46edaeba-8c0b-45f3-aaff-94e438fd5201/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2021-11-21 01:48:31,344 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:48:31,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:48:31,345 INFO L85 PathProgramCache]: Analyzing trace with hash 1521015925, now seen corresponding path program 1 times [2021-11-21 01:48:31,345 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:48:31,345 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2034858487] [2021-11-21 01:48:31,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:48:31,346 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:48:31,363 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-21 01:48:31,364 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [922403270] [2021-11-21 01:48:31,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:48:31,364 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:48:31,364 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46edaeba-8c0b-45f3-aaff-94e438fd5201/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:48:31,365 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46edaeba-8c0b-45f3-aaff-94e438fd5201/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 01:48:31,384 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46edaeba-8c0b-45f3-aaff-94e438fd5201/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-21 01:48:32,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:48:32,257 INFO L263 TraceCheckSpWp]: Trace formula consists of 339 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-21 01:48:32,260 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 01:48:32,414 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:48:32,414 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-21 01:48:32,414 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:48:32,414 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2034858487] [2021-11-21 01:48:32,414 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-21 01:48:32,414 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [922403270] [2021-11-21 01:48:32,415 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [922403270] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:48:32,415 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:48:32,415 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 01:48:32,415 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1868190181] [2021-11-21 01:48:32,415 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:48:32,416 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 01:48:32,416 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:48:32,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 01:48:32,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 01:48:32,417 INFO L87 Difference]: Start difference. First operand 1112 states and 2126 transitions. Second operand has 4 states, 3 states have (on average 20.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-21 01:48:35,170 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.87s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-21 01:48:35,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:48:35,439 INFO L93 Difference]: Finished difference Result 2207 states and 4236 transitions. [2021-11-21 01:48:35,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 01:48:35,449 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), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 64 [2021-11-21 01:48:35,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:48:35,461 INFO L225 Difference]: With dead ends: 2207 [2021-11-21 01:48:35,461 INFO L226 Difference]: Without dead ends: 1114 [2021-11-21 01:48:35,467 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 [2021-11-21 01:48:35,468 INFO L933 BasicCegarLoop]: 2096 mSDtfsCounter, 1 mSDsluCounter, 4212 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 6284 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2021-11-21 01:48:35,469 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 6284 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2021-11-21 01:48:35,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1114 states. [2021-11-21 01:48:35,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1114 to 1114. [2021-11-21 01:48:35,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1114 states, 606 states have (on average 1.8514851485148516) internal successors, (1122), 1108 states have internal predecessors, (1122), 503 states have call successors, (503), 2 states have call predecessors, (503), 3 states have return successors, (504), 4 states have call predecessors, (504), 503 states have call successors, (504) [2021-11-21 01:48:35,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1114 states to 1114 states and 2129 transitions. [2021-11-21 01:48:35,698 INFO L78 Accepts]: Start accepts. Automaton has 1114 states and 2129 transitions. Word has length 64 [2021-11-21 01:48:35,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:48:35,700 INFO L470 AbstractCegarLoop]: Abstraction has 1114 states and 2129 transitions. [2021-11-21 01:48:35,700 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), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-21 01:48:35,700 INFO L276 IsEmpty]: Start isEmpty. Operand 1114 states and 2129 transitions. [2021-11-21 01:48:35,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-11-21 01:48:35,705 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:48:35,705 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] [2021-11-21 01:48:35,743 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46edaeba-8c0b-45f3-aaff-94e438fd5201/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-21 01:48:35,924 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46edaeba-8c0b-45f3-aaff-94e438fd5201/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:48:35,925 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:48:35,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:48:35,925 INFO L85 PathProgramCache]: Analyzing trace with hash 1487083651, now seen corresponding path program 1 times [2021-11-21 01:48:35,925 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:48:35,926 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [701979112] [2021-11-21 01:48:35,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:48:35,926 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:48:35,951 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-21 01:48:35,954 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1453550621] [2021-11-21 01:48:35,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:48:35,954 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:48:35,954 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46edaeba-8c0b-45f3-aaff-94e438fd5201/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:48:35,955 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46edaeba-8c0b-45f3-aaff-94e438fd5201/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 01:48:35,975 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46edaeba-8c0b-45f3-aaff-94e438fd5201/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-21 01:48:41,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:48:41,796 INFO L263 TraceCheckSpWp]: Trace formula consists of 351 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-21 01:48:41,799 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 01:48:41,982 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-21 01:48:41,982 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 01:48:42,231 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-21 01:48:42,232 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:48:42,232 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [701979112] [2021-11-21 01:48:42,232 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-21 01:48:42,232 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1453550621] [2021-11-21 01:48:42,232 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1453550621] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-21 01:48:42,233 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1569080052] [2021-11-21 01:48:42,269 INFO L159 IcfgInterpreter]: Started Sifa with 60 locations of interest [2021-11-21 01:48:42,269 INFO L166 IcfgInterpreter]: Building call graph [2021-11-21 01:48:42,274 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-21 01:48:42,281 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-21 01:48:42,281 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-21 01:48:42,449 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:42,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:42,475 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-21 01:48:42,476 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 27 treesize of output 37 [2021-11-21 01:48:42,499 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:42,501 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2021-11-21 01:48:42,519 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:42,521 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2021-11-21 01:48:42,539 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 [2021-11-21 01:48:42,553 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 [2021-11-21 01:48:42,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:42,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:42,709 INFO L354 Elim1Store]: treesize reduction 28, result has 40.4 percent of original size [2021-11-21 01:48:42,709 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 [2021-11-21 01:48:42,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:42,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:42,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:42,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:42,790 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-11-21 01:48:42,791 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 [2021-11-21 01:48:42,839 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:42,840 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2021-11-21 01:48:42,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:42,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:42,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:42,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:42,869 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 49 [2021-11-21 01:48:42,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:42,939 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2021-11-21 01:48:44,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:44,357 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:44,358 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:44,359 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2021-11-21 01:48:44,386 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:44,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:44,389 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:44,390 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:44,394 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:44,395 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:44,396 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:44,400 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:44,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:44,402 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:44,404 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 89 treesize of output 77 [2021-11-21 01:48:44,419 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:44,420 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:44,421 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:44,422 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:44,423 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:44,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:44,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:44,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:44,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:44,429 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 [2021-11-21 01:48:44,507 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:44,508 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:44,509 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:44,511 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2021-11-21 01:48:44,582 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:44,583 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:44,584 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:44,585 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:44,586 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:44,587 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:44,588 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:44,589 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:44,590 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:44,591 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:44,592 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:44,593 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:44,594 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:44,595 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:44,597 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 [2021-11-21 01:48:44,610 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:44,612 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:44,614 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:44,615 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:44,616 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:44,617 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:44,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:44,619 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:44,620 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:44,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:44,622 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:44,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:44,624 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:44,626 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 14 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 77 [2021-11-21 01:48:44,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:44,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:44,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:44,687 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2021-11-21 01:48:44,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:44,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:44,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:44,754 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2021-11-21 01:48:44,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:44,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:44,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:44,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:44,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:44,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:44,873 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2021-11-21 01:48:44,932 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:44,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:44,934 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:44,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:44,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:44,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:44,938 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:44,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:44,940 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:44,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:44,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:44,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:44,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:44,945 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:44,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:44,949 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:44,950 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:44,955 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-21 01:48:44,956 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 17 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 8 case distinctions, treesize of input 75 treesize of output 77 [2021-11-21 01:48:45,035 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:45,036 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:45,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:45,038 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:45,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:45,040 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:45,041 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 110 treesize of output 115 [2021-11-21 01:48:45,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:45,058 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:45,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:45,116 INFO L354 Elim1Store]: treesize reduction 120, result has 14.9 percent of original size [2021-11-21 01:48:45,117 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 127 treesize of output 138 [2021-11-21 01:48:45,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:45,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:45,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:45,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:45,204 INFO L354 Elim1Store]: treesize reduction 224, result has 10.4 percent of original size [2021-11-21 01:48:45,205 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 126 treesize of output 132 [2021-11-21 01:48:45,891 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-21 01:48:45,899 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-21 01:48:45,906 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-21 01:48:45,965 INFO L354 Elim1Store]: treesize reduction 21, result has 34.4 percent of original size [2021-11-21 01:48:45,965 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 85 treesize of output 88 [2021-11-21 01:48:45,998 INFO L354 Elim1Store]: treesize reduction 19, result has 36.7 percent of original size [2021-11-21 01:48:45,998 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 88 treesize of output 91 [2021-11-21 01:48:46,026 INFO L354 Elim1Store]: treesize reduction 19, result has 36.7 percent of original size [2021-11-21 01:48:46,026 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 91 treesize of output 94 [2021-11-21 01:48:46,141 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-11-21 01:48:46,183 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2021-11-21 01:48:46,197 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2021-11-21 01:48:46,271 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:46,272 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:46,273 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:46,274 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:46,275 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:46,276 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:46,277 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:46,278 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:46,278 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:46,279 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:46,280 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 10 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 22 [2021-11-21 01:48:46,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:46,319 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:46,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:46,322 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:46,323 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:46,324 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:46,324 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 68 treesize of output 26 [2021-11-21 01:48:46,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:46,402 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:46,403 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:46,404 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:46,405 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:46,406 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:46,407 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 16 [2021-11-21 01:48:46,710 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:46,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:46,712 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:46,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:46,714 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:46,714 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:46,715 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:46,716 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:46,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:46,718 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:46,719 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 10 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 22 [2021-11-21 01:48:46,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:46,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:46,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:46,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:46,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:46,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:46,753 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 16 [2021-11-21 01:48:46,776 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:46,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:46,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:46,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:46,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:46,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:46,781 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 68 treesize of output 26 [2021-11-21 01:48:53,771 WARN L227 SmtUtils]: Spent 6.90s on a formula simplification. DAG size of input: 66 DAG size of output: 32 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-21 01:48:53,772 INFO L354 Elim1Store]: treesize reduction 348, result has 15.7 percent of original size [2021-11-21 01:48:53,772 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 2847 treesize of output 2324 [2021-11-21 01:48:53,804 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:49:04,080 WARN L227 SmtUtils]: Spent 10.27s on a formula simplification. DAG size of input: 90 DAG size of output: 46 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-21 01:49:04,081 INFO L354 Elim1Store]: treesize reduction 262, result has 32.6 percent of original size [2021-11-21 01:49:04,082 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 4 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 7 new quantified variables, introduced 8 case distinctions, treesize of input 2948 treesize of output 2666 [2021-11-21 01:49:15,214 WARN L227 SmtUtils]: Spent 11.02s on a formula simplification. DAG size of input: 251 DAG size of output: 142 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-21 01:49:15,215 INFO L354 Elim1Store]: treesize reduction 2750, result has 29.6 percent of original size [2021-11-21 01:49:15,216 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 4 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 16 case distinctions, treesize of input 2916 treesize of output 2686 [2021-11-21 01:49:15,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:49:15,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:49:15,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:49:16,972 INFO L354 Elim1Store]: treesize reduction 188, result has 20.0 percent of original size [2021-11-21 01:49:16,973 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 [2021-11-21 01:49:17,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:49:17,187 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:49:18,292 INFO L354 Elim1Store]: treesize reduction 126, result has 17.1 percent of original size [2021-11-21 01:49:18,293 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 [2021-11-21 01:49:20,570 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:49:20,653 INFO L354 Elim1Store]: treesize reduction 32, result has 3.0 percent of original size [2021-11-21 01:49:20,653 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 50 treesize of output 32 [2021-11-21 01:49:20,923 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-21 01:49:21,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:49:21,958 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-21 01:49:21,959 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 51 treesize of output 61