./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test8-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d51fcb6a-743e-40a9-a680-dbe76a70182b/bin/utaipan-eEHZpOm5b7/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d51fcb6a-743e-40a9-a680-dbe76a70182b/bin/utaipan-eEHZpOm5b7/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d51fcb6a-743e-40a9-a680-dbe76a70182b/bin/utaipan-eEHZpOm5b7/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d51fcb6a-743e-40a9-a680-dbe76a70182b/bin/utaipan-eEHZpOm5b7/config/TaipanReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test8-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d51fcb6a-743e-40a9-a680-dbe76a70182b/bin/utaipan-eEHZpOm5b7/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d51fcb6a-743e-40a9-a680-dbe76a70182b/bin/utaipan-eEHZpOm5b7 --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 3b6a7e09bdf002daf4e1e371c35be311dd644a61b41d9b32022b9ee835751b90 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-11-25 18:38:20,770 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-25 18:38:20,772 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-25 18:38:20,821 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-25 18:38:20,822 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-25 18:38:20,828 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-25 18:38:20,830 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-25 18:38:20,834 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-25 18:38:20,837 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-25 18:38:20,843 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-25 18:38:20,844 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-25 18:38:20,846 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-25 18:38:20,846 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-25 18:38:20,849 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-25 18:38:20,851 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-25 18:38:20,856 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-25 18:38:20,858 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-25 18:38:20,859 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-25 18:38:20,862 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-25 18:38:20,873 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-25 18:38:20,875 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-25 18:38:20,877 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-25 18:38:20,881 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-25 18:38:20,882 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-25 18:38:20,887 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-25 18:38:20,888 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-25 18:38:20,888 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-25 18:38:20,891 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-25 18:38:20,891 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-25 18:38:20,893 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-25 18:38:20,894 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-25 18:38:20,895 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-25 18:38:20,897 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-25 18:38:20,899 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-25 18:38:20,900 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-25 18:38:20,901 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-25 18:38:20,902 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-25 18:38:20,902 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-25 18:38:20,902 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-25 18:38:20,903 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-25 18:38:20,904 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-25 18:38:20,905 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d51fcb6a-743e-40a9-a680-dbe76a70182b/bin/utaipan-eEHZpOm5b7/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-25 18:38:20,954 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-25 18:38:20,954 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-25 18:38:20,955 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-25 18:38:20,955 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-25 18:38:20,956 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-25 18:38:20,963 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-25 18:38:20,963 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-25 18:38:20,963 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-25 18:38:20,964 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-25 18:38:20,964 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-25 18:38:20,965 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-25 18:38:20,965 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-25 18:38:20,965 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-25 18:38:20,966 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-25 18:38:20,966 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-25 18:38:20,966 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-25 18:38:20,966 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-25 18:38:20,966 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-25 18:38:20,967 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-25 18:38:20,968 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-25 18:38:20,968 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-25 18:38:20,968 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-25 18:38:20,968 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-25 18:38:20,968 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-25 18:38:20,969 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-25 18:38:20,969 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-25 18:38:20,970 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-25 18:38:20,971 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-25 18:38:20,971 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-25 18:38:20,971 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-25 18:38:20,971 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-25 18:38:20,972 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-25 18:38:20,972 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 18:38:20,972 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-25 18:38:20,972 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-25 18:38:20,972 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-25 18:38:20,973 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-25 18:38:20,973 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-25 18:38:20,973 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-25 18:38:20,973 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-25 18:38:20,973 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-25 18:38:20,974 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_d51fcb6a-743e-40a9-a680-dbe76a70182b/bin/utaipan-eEHZpOm5b7/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d51fcb6a-743e-40a9-a680-dbe76a70182b/bin/utaipan-eEHZpOm5b7 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3b6a7e09bdf002daf4e1e371c35be311dd644a61b41d9b32022b9ee835751b90 [2021-11-25 18:38:21,296 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-25 18:38:21,326 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-25 18:38:21,329 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-25 18:38:21,331 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-25 18:38:21,331 INFO L275 PluginConnector]: CDTParser initialized [2021-11-25 18:38:21,333 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d51fcb6a-743e-40a9-a680-dbe76a70182b/bin/utaipan-eEHZpOm5b7/../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test8-1.i [2021-11-25 18:38:21,405 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d51fcb6a-743e-40a9-a680-dbe76a70182b/bin/utaipan-eEHZpOm5b7/data/9c5a1c67a/5b608634495b482aa5d7024a26b22fbf/FLAG861c2335d [2021-11-25 18:38:22,189 INFO L306 CDTParser]: Found 1 translation units. [2021-11-25 18:38:22,190 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d51fcb6a-743e-40a9-a680-dbe76a70182b/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test8-1.i [2021-11-25 18:38:22,223 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d51fcb6a-743e-40a9-a680-dbe76a70182b/bin/utaipan-eEHZpOm5b7/data/9c5a1c67a/5b608634495b482aa5d7024a26b22fbf/FLAG861c2335d [2021-11-25 18:38:22,367 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d51fcb6a-743e-40a9-a680-dbe76a70182b/bin/utaipan-eEHZpOm5b7/data/9c5a1c67a/5b608634495b482aa5d7024a26b22fbf [2021-11-25 18:38:22,371 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-25 18:38:22,373 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-25 18:38:22,378 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-25 18:38:22,378 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-25 18:38:22,382 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-25 18:38:22,383 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 06:38:22" (1/1) ... [2021-11-25 18:38:22,385 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@46d68e18 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:38:22, skipping insertion in model container [2021-11-25 18:38:22,386 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 06:38:22" (1/1) ... [2021-11-25 18:38:22,410 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-25 18:38:22,523 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-25 18:38:23,024 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_d51fcb6a-743e-40a9-a680-dbe76a70182b/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test8-1.i[33021,33034] [2021-11-25 18:38:23,152 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_d51fcb6a-743e-40a9-a680-dbe76a70182b/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test8-1.i[45234,45247] [2021-11-25 18:38:23,166 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 18:38:23,189 INFO L203 MainTranslator]: Completed pre-run [2021-11-25 18:38:23,222 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_d51fcb6a-743e-40a9-a680-dbe76a70182b/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test8-1.i[33021,33034] [2021-11-25 18:38:23,350 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_d51fcb6a-743e-40a9-a680-dbe76a70182b/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test8-1.i[45234,45247] [2021-11-25 18:38:23,367 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 18:38:23,425 INFO L208 MainTranslator]: Completed translation [2021-11-25 18:38:23,426 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:38:23 WrapperNode [2021-11-25 18:38:23,426 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-25 18:38:23,427 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-25 18:38:23,427 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-25 18:38:23,427 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-25 18:38:23,435 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:38:23" (1/1) ... [2021-11-25 18:38:23,482 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:38:23" (1/1) ... [2021-11-25 18:38:23,557 INFO L137 Inliner]: procedures = 177, calls = 297, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 996 [2021-11-25 18:38:23,558 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-25 18:38:23,559 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-25 18:38:23,559 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-25 18:38:23,559 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-25 18:38:23,569 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:38:23" (1/1) ... [2021-11-25 18:38:23,569 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:38:23" (1/1) ... [2021-11-25 18:38:23,580 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:38:23" (1/1) ... [2021-11-25 18:38:23,580 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:38:23" (1/1) ... [2021-11-25 18:38:23,708 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:38:23" (1/1) ... [2021-11-25 18:38:23,729 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:38:23" (1/1) ... [2021-11-25 18:38:23,747 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:38:23" (1/1) ... [2021-11-25 18:38:23,770 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-25 18:38:23,771 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-25 18:38:23,771 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-25 18:38:23,771 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-25 18:38:23,772 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:38:23" (1/1) ... [2021-11-25 18:38:23,786 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 18:38:23,799 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d51fcb6a-743e-40a9-a680-dbe76a70182b/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 18:38:23,821 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d51fcb6a-743e-40a9-a680-dbe76a70182b/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-25 18:38:23,839 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d51fcb6a-743e-40a9-a680-dbe76a70182b/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-25 18:38:23,883 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-25 18:38:23,884 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-25 18:38:23,884 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-25 18:38:23,884 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-25 18:38:23,884 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-25 18:38:23,885 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-25 18:38:23,885 INFO L130 BoogieDeclarations]: Found specification of procedure test_int [2021-11-25 18:38:23,885 INFO L138 BoogieDeclarations]: Found implementation of procedure test_int [2021-11-25 18:38:23,885 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-25 18:38:23,885 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-25 18:38:23,886 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-25 18:38:23,886 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-25 18:38:23,886 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-25 18:38:23,886 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-25 18:38:23,887 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-25 18:38:23,887 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-25 18:38:23,887 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-25 18:38:23,887 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-25 18:38:24,132 INFO L236 CfgBuilder]: Building ICFG [2021-11-25 18:38:24,134 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-25 18:38:25,465 INFO L277 CfgBuilder]: Performing block encoding [2021-11-25 18:38:26,000 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-25 18:38:26,000 INFO L301 CfgBuilder]: Removed 62 assume(true) statements. [2021-11-25 18:38:26,005 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:38:26 BoogieIcfgContainer [2021-11-25 18:38:26,005 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-25 18:38:26,009 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-25 18:38:26,009 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-25 18:38:26,013 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-25 18:38:26,014 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 06:38:22" (1/3) ... [2021-11-25 18:38:26,014 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6159beca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 06:38:26, skipping insertion in model container [2021-11-25 18:38:26,016 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:38:23" (2/3) ... [2021-11-25 18:38:26,017 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6159beca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 06:38:26, skipping insertion in model container [2021-11-25 18:38:26,017 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:38:26" (3/3) ... [2021-11-25 18:38:26,019 INFO L111 eAbstractionObserver]: Analyzing ICFG uthash_JEN_test8-1.i [2021-11-25 18:38:26,028 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-25 18:38:26,028 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-11-25 18:38:26,103 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-25 18:38:26,121 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 [2021-11-25 18:38:26,121 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-11-25 18:38:26,152 INFO L276 IsEmpty]: Start isEmpty. Operand has 148 states, 122 states have (on average 1.7950819672131149) internal successors, (219), 139 states have internal predecessors, (219), 20 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (20), 6 states have call predecessors, (20), 20 states have call successors, (20) [2021-11-25 18:38:26,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-25 18:38:26,158 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:38:26,159 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:38:26,160 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 18:38:26,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:38:26,168 INFO L85 PathProgramCache]: Analyzing trace with hash -1967293167, now seen corresponding path program 1 times [2021-11-25 18:38:26,178 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:38:26,179 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1444538089] [2021-11-25 18:38:26,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:38:26,180 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:38:26,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:38:26,403 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 18:38:26,404 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:38:26,405 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1444538089] [2021-11-25 18:38:26,406 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1444538089] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:38:26,407 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:38:26,407 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-25 18:38:26,409 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1154842341] [2021-11-25 18:38:26,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:38:26,415 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-25 18:38:26,416 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:38:26,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-25 18:38:26,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-25 18:38:26,462 INFO L87 Difference]: Start difference. First operand has 148 states, 122 states have (on average 1.7950819672131149) internal successors, (219), 139 states have internal predecessors, (219), 20 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (20), 6 states have call predecessors, (20), 20 states have call successors, (20) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 18:38:26,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:38:26,854 INFO L93 Difference]: Finished difference Result 295 states and 534 transitions. [2021-11-25 18:38:26,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-25 18:38:26,857 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 [2021-11-25 18:38:26,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:38:26,870 INFO L225 Difference]: With dead ends: 295 [2021-11-25 18:38:26,870 INFO L226 Difference]: Without dead ends: 146 [2021-11-25 18:38:26,875 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 [2021-11-25 18:38:26,880 INFO L933 BasicCegarLoop]: 177 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 177 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-25 18:38:26,881 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 177 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-25 18:38:26,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2021-11-25 18:38:26,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 146. [2021-11-25 18:38:26,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146 states, 121 states have (on average 1.2727272727272727) internal successors, (154), 137 states have internal predecessors, (154), 20 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (20), 6 states have call predecessors, (20), 20 states have call successors, (20) [2021-11-25 18:38:26,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 194 transitions. [2021-11-25 18:38:26,942 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 194 transitions. Word has length 8 [2021-11-25 18:38:26,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:38:26,942 INFO L470 AbstractCegarLoop]: Abstraction has 146 states and 194 transitions. [2021-11-25 18:38:26,942 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) [2021-11-25 18:38:26,943 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 194 transitions. [2021-11-25 18:38:26,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-11-25 18:38:26,945 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:38:26,945 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] [2021-11-25 18:38:26,945 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-25 18:38:26,946 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 18:38:26,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:38:26,946 INFO L85 PathProgramCache]: Analyzing trace with hash 1767054038, now seen corresponding path program 1 times [2021-11-25 18:38:26,947 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:38:26,947 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [348578806] [2021-11-25 18:38:26,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:38:26,948 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:38:26,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:38:27,035 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 18:38:27,035 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:38:27,035 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [348578806] [2021-11-25 18:38:27,036 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [348578806] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:38:27,036 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:38:27,036 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 18:38:27,037 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1558575307] [2021-11-25 18:38:27,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:38:27,038 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 18:38:27,038 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:38:27,039 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 18:38:27,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 18:38:27,040 INFO L87 Difference]: Start difference. First operand 146 states and 194 transitions. Second operand has 4 states, 4 states have (on average 5.0) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 18:38:30,235 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 18:38:30,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:38:30,308 INFO L93 Difference]: Finished difference Result 293 states and 390 transitions. [2021-11-25 18:38:30,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 18:38:30,309 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 [2021-11-25 18:38:30,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:38:30,313 INFO L225 Difference]: With dead ends: 293 [2021-11-25 18:38:30,313 INFO L226 Difference]: Without dead ends: 202 [2021-11-25 18:38:30,314 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 [2021-11-25 18:38:30,316 INFO L933 BasicCegarLoop]: 169 mSDtfsCounter, 60 mSDsluCounter, 336 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 488 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2021-11-25 18:38:30,317 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [61 Valid, 488 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 98 Invalid, 1 Unknown, 0 Unchecked, 3.2s Time] [2021-11-25 18:38:30,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2021-11-25 18:38:30,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 148. [2021-11-25 18:38:30,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 123 states have (on average 1.2682926829268293) internal successors, (156), 139 states have internal predecessors, (156), 20 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (20), 6 states have call predecessors, (20), 20 states have call successors, (20) [2021-11-25 18:38:30,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 196 transitions. [2021-11-25 18:38:30,343 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 196 transitions. Word has length 20 [2021-11-25 18:38:30,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:38:30,344 INFO L470 AbstractCegarLoop]: Abstraction has 148 states and 196 transitions. [2021-11-25 18:38:30,344 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) [2021-11-25 18:38:30,345 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 196 transitions. [2021-11-25 18:38:30,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-11-25 18:38:30,346 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:38:30,347 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:38:30,347 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-25 18:38:30,347 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 18:38:30,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:38:30,348 INFO L85 PathProgramCache]: Analyzing trace with hash -430271198, now seen corresponding path program 1 times [2021-11-25 18:38:30,349 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:38:30,349 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1361737533] [2021-11-25 18:38:30,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:38:30,350 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:38:30,571 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-25 18:38:30,572 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [27476966] [2021-11-25 18:38:30,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:38:30,572 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 18:38:30,572 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d51fcb6a-743e-40a9-a680-dbe76a70182b/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 18:38:30,580 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d51fcb6a-743e-40a9-a680-dbe76a70182b/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 18:38:30,598 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d51fcb6a-743e-40a9-a680-dbe76a70182b/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-25 18:38:31,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:38:31,385 INFO L263 TraceCheckSpWp]: Trace formula consists of 1591 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-25 18:38:31,394 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 18:38:31,558 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 18:38:31,558 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 18:38:31,559 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:38:31,559 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1361737533] [2021-11-25 18:38:31,561 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-25 18:38:31,561 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [27476966] [2021-11-25 18:38:31,562 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [27476966] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:38:31,562 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:38:31,566 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-25 18:38:31,567 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1632937335] [2021-11-25 18:38:31,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:38:31,568 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 18:38:31,568 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:38:31,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 18:38:31,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 18:38:31,569 INFO L87 Difference]: Start difference. First operand 148 states and 196 transitions. Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 2 states have internal predecessors, (30), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 18:38:32,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:38:32,502 INFO L93 Difference]: Finished difference Result 341 states and 444 transitions. [2021-11-25 18:38:32,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 18:38:32,507 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 2 states have internal predecessors, (30), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2021-11-25 18:38:32,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:38:32,510 INFO L225 Difference]: With dead ends: 341 [2021-11-25 18:38:32,510 INFO L226 Difference]: Without dead ends: 196 [2021-11-25 18:38:32,511 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 18:38:32,513 INFO L933 BasicCegarLoop]: 189 mSDtfsCounter, 45 mSDsluCounter, 167 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 343 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-11-25 18:38:32,513 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [48 Valid, 343 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-11-25 18:38:32,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2021-11-25 18:38:32,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 193. [2021-11-25 18:38:32,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 167 states have (on average 1.2275449101796407) internal successors, (205), 183 states have internal predecessors, (205), 21 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (21), 7 states have call predecessors, (21), 21 states have call successors, (21) [2021-11-25 18:38:32,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 247 transitions. [2021-11-25 18:38:32,551 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 247 transitions. Word has length 32 [2021-11-25 18:38:32,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:38:32,552 INFO L470 AbstractCegarLoop]: Abstraction has 193 states and 247 transitions. [2021-11-25 18:38:32,552 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 2 states have internal predecessors, (30), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 18:38:32,552 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 247 transitions. [2021-11-25 18:38:32,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-11-25 18:38:32,554 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:38:32,555 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:38:32,588 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d51fcb6a-743e-40a9-a680-dbe76a70182b/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-25 18:38:32,755 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d51fcb6a-743e-40a9-a680-dbe76a70182b/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 18:38:32,756 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 18:38:32,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:38:32,756 INFO L85 PathProgramCache]: Analyzing trace with hash 308571032, now seen corresponding path program 1 times [2021-11-25 18:38:32,756 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:38:32,757 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1142572177] [2021-11-25 18:38:32,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:38:32,757 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:38:32,835 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-25 18:38:32,839 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1480334006] [2021-11-25 18:38:32,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:38:32,842 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 18:38:32,842 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d51fcb6a-743e-40a9-a680-dbe76a70182b/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 18:38:32,843 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d51fcb6a-743e-40a9-a680-dbe76a70182b/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 18:38:32,862 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d51fcb6a-743e-40a9-a680-dbe76a70182b/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-25 18:38:33,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:38:33,825 INFO L263 TraceCheckSpWp]: Trace formula consists of 728 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-25 18:38:33,831 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 18:38:33,973 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 18:38:33,974 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 18:38:33,976 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:38:33,976 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1142572177] [2021-11-25 18:38:33,976 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-25 18:38:33,985 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1480334006] [2021-11-25 18:38:33,985 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1480334006] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:38:33,987 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:38:33,987 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 18:38:33,987 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [807740619] [2021-11-25 18:38:33,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:38:33,988 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 18:38:33,989 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:38:33,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 18:38:33,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 18:38:33,990 INFO L87 Difference]: Start difference. First operand 193 states and 247 transitions. Second operand has 4 states, 3 states have (on average 13.0) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-25 18:38:34,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:38:34,915 INFO L93 Difference]: Finished difference Result 372 states and 482 transitions. [2021-11-25 18:38:34,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 18:38:34,922 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 13.0) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 45 [2021-11-25 18:38:34,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:38:34,925 INFO L225 Difference]: With dead ends: 372 [2021-11-25 18:38:34,925 INFO L226 Difference]: Without dead ends: 195 [2021-11-25 18:38:34,926 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 18:38:34,927 INFO L933 BasicCegarLoop]: 174 mSDtfsCounter, 1 mSDsluCounter, 378 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 518 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-11-25 18:38:34,928 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 518 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-11-25 18:38:34,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states. [2021-11-25 18:38:34,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 195. [2021-11-25 18:38:34,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 195 states, 168 states have (on average 1.2321428571428572) internal successors, (207), 185 states have internal predecessors, (207), 21 states have call successors, (21), 3 states have call predecessors, (21), 4 states have return successors, (22), 7 states have call predecessors, (22), 21 states have call successors, (22) [2021-11-25 18:38:34,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 250 transitions. [2021-11-25 18:38:34,950 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 250 transitions. Word has length 45 [2021-11-25 18:38:34,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:38:34,950 INFO L470 AbstractCegarLoop]: Abstraction has 195 states and 250 transitions. [2021-11-25 18:38:34,951 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 13.0) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-25 18:38:34,951 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 250 transitions. [2021-11-25 18:38:34,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-11-25 18:38:34,953 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:38:34,954 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:38:34,985 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d51fcb6a-743e-40a9-a680-dbe76a70182b/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-25 18:38:35,166 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d51fcb6a-743e-40a9-a680-dbe76a70182b/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 18:38:35,167 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 18:38:35,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:38:35,167 INFO L85 PathProgramCache]: Analyzing trace with hash -282668078, now seen corresponding path program 1 times [2021-11-25 18:38:35,168 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:38:35,168 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [755773025] [2021-11-25 18:38:35,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:38:35,168 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:38:35,235 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-25 18:38:35,240 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [411657915] [2021-11-25 18:38:35,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:38:35,241 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 18:38:35,241 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d51fcb6a-743e-40a9-a680-dbe76a70182b/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 18:38:35,242 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d51fcb6a-743e-40a9-a680-dbe76a70182b/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 18:38:35,250 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d51fcb6a-743e-40a9-a680-dbe76a70182b/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-25 18:38:36,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:38:36,688 INFO L263 TraceCheckSpWp]: Trace formula consists of 758 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-25 18:38:36,693 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 18:38:36,795 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-25 18:38:36,796 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 18:38:37,000 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-25 18:38:37,000 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:38:37,001 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [755773025] [2021-11-25 18:38:37,001 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-25 18:38:37,001 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [411657915] [2021-11-25 18:38:37,001 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [411657915] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 18:38:37,001 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [775772674] [2021-11-25 18:38:37,028 INFO L159 IcfgInterpreter]: Started Sifa with 43 locations of interest [2021-11-25 18:38:37,029 INFO L166 IcfgInterpreter]: Building call graph [2021-11-25 18:38:37,037 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-25 18:38:37,045 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-25 18:38:37,046 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-25 18:38:37,208 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:38:37,221 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 [2021-11-25 18:38:37,232 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 [2021-11-25 18:38:37,244 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:38:37,266 INFO L354 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2021-11-25 18:38:37,267 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 1 case distinctions, treesize of input 17 treesize of output 26 [2021-11-25 18:38:37,280 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 [2021-11-25 18:38:37,299 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:38:37,323 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-25 18:38:37,323 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 [2021-11-25 18:38:37,392 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:38:37,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:38:37,434 INFO L354 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2021-11-25 18:38:37,434 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 22 treesize of output 38 [2021-11-25 18:38:37,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:38:37,467 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2021-11-25 18:38:37,478 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:38:37,486 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:38:37,489 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:38:37,490 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:38:37,498 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:38:37,517 INFO L354 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2021-11-25 18:38:37,518 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 52 treesize of output 53 [2021-11-25 18:38:37,552 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:38:37,553 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2021-11-25 18:38:37,575 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:38:37,577 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:38:37,623 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-11-25 18:38:37,624 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 [2021-11-25 18:38:38,118 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:38:38,119 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:38:38,122 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:38:38,124 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 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 [2021-11-25 18:38:38,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:38:38,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:38:38,150 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:38:38,151 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 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 [2021-11-25 18:38:38,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:38:38,171 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:38:38,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:38:38,174 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:38:38,175 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:38:38,176 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:38:38,177 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:38:38,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:38:38,190 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 14 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 76 treesize of output 64 [2021-11-25 18:38:38,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:38:38,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:38:38,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:38:38,215 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:38:38,216 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:38:38,217 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:38:38,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:38:38,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:38:38,222 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 14 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 [2021-11-25 18:38:38,272 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:38:38,274 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:38:38,275 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:38:38,277 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 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 [2021-11-25 18:38:38,301 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:38:38,302 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:38:38,303 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:38:38,305 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 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 [2021-11-25 18:38:38,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:38:38,339 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:38:38,340 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:38:38,341 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:38:38,343 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:38:38,344 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:38:38,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:38:38,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:38:38,348 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:38:38,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:38:38,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:38:38,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:38:38,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:38:38,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:38:38,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:38:38,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:38:38,357 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:38:38,362 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 23 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 86 [2021-11-25 18:38:38,422 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:38:38,423 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:38:38,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:38:38,430 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:38:38,431 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:38:38,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:38:38,443 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 9 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 [2021-11-25 18:38:38,472 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:38:38,474 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:38:38,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:38:38,478 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:38:38,480 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:38:38,482 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:38:38,491 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 10 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 [2021-11-25 18:38:38,518 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:38:38,525 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:38:38,527 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:38:38,604 INFO L354 Elim1Store]: treesize reduction 90, result has 33.8 percent of original size [2021-11-25 18:38:38,605 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 12 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 49 treesize of output 85 [2021-11-25 18:38:38,652 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:38:38,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:38:38,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:38:38,656 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 13 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 44 [2021-11-25 18:38:38,693 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:38:38,694 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:38:38,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:38:38,698 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:38:38,699 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:38:38,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:38:38,702 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:38:38,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:38:38,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:38:38,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:38:38,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:38:38,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:38:38,710 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:38:38,712 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 18 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 [2021-11-25 18:38:38,847 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 18:38:38,852 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 [2021-11-25 18:38:38,857 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 [2021-11-25 18:38:38,918 INFO L354 Elim1Store]: treesize reduction 21, result has 34.4 percent of original size [2021-11-25 18:38:38,918 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 57 treesize of output 60 [2021-11-25 18:38:38,954 INFO L354 Elim1Store]: treesize reduction 19, result has 36.7 percent of original size [2021-11-25 18:38:38,954 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 51 treesize of output 54 [2021-11-25 18:38:38,988 INFO L354 Elim1Store]: treesize reduction 19, result has 36.7 percent of original size [2021-11-25 18:38:38,988 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 47 treesize of output 50 [2021-11-25 18:38:39,038 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 [2021-11-25 18:38:39,045 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 [2021-11-25 18:38:39,053 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 [2021-11-25 18:38:39,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:38:39,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:38:39,137 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:38:39,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:38:39,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:38:39,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:38:39,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:38:39,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:38:39,144 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 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 56 treesize of output 22 [2021-11-25 18:38:39,164 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:38:39,165 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:38:39,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:38:39,168 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:38:39,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:38:39,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:38:39,171 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 108 treesize of output 42 [2021-11-25 18:38:39,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:38:39,194 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:38:39,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:38:39,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:38:39,197 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:38:39,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:38:39,199 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 10 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 [2021-11-25 18:38:39,359 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:38:39,360 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:38:39,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:38:39,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:38:39,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:38:39,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:38:39,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:38:39,368 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:38:39,370 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 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 56 treesize of output 22 [2021-11-25 18:38:39,390 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:38:39,391 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:38:39,392 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:38:39,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:38:39,394 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:38:39,395 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:38:39,397 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 108 treesize of output 42 [2021-11-25 18:38:39,419 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:38:39,420 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:38:39,422 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:38:39,423 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:38:39,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:38:39,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:38:39,427 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 10 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 [2021-11-25 18:38:49,155 WARN L227 SmtUtils]: Spent 9.54s 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) [2021-11-25 18:38:49,156 INFO L354 Elim1Store]: treesize reduction 348, result has 15.7 percent of original size [2021-11-25 18:38:49,157 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 1998 treesize of output 1475 [2021-11-25 18:38:49,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:39:01,933 WARN L227 SmtUtils]: Spent 12.62s 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) [2021-11-25 18:39:01,935 INFO L354 Elim1Store]: treesize reduction 262, result has 32.6 percent of original size [2021-11-25 18:39:01,935 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 4 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 7 new quantified variables, introduced 8 case distinctions, treesize of input 2099 treesize of output 1817 [2021-11-25 18:39:02,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:39:02,652 INFO L244 Elim1Store]: Index analysis took 463 ms [2021-11-25 18:39:16,443 WARN L227 SmtUtils]: Spent 13.36s on a formula simplification. DAG size of input: 244 DAG size of output: 142 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-25 18:39:16,445 INFO L354 Elim1Store]: treesize reduction 2566, result has 31.1 percent of original size [2021-11-25 18:39:16,450 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 4 stores, 0 select indices, 0 select index equivalence classes, 8 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 16 case distinctions, treesize of input 1606 treesize of output 1377 [2021-11-25 18:39:17,168 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:39:17,324 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:39:17,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:39:17,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:39:17,364 INFO L244 Elim1Store]: Index analysis took 279 ms [2021-11-25 18:39:18,458 INFO L354 Elim1Store]: treesize reduction 72, result has 33.9 percent of original size [2021-11-25 18:39:18,459 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 42 treesize of output 73 [2021-11-25 18:39:18,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:39:18,776 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:39:18,794 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:39:18,817 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:39:18,819 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 19 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 46 [2021-11-25 18:39:19,272 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 18:39:19,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:39:19,477 INFO L354 Elim1Store]: treesize reduction 32, result has 3.0 percent of original size [2021-11-25 18:39:19,478 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 6 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 [2021-11-25 18:39:19,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:39:19,913 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 18:39:19,913 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 51 treesize of output 61 [2021-11-25 18:39:20,014 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:39:20,042 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:39:20,044 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 39 [2021-11-25 18:39:20,088 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 18:39:20,221 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:39:20,420 INFO L354 Elim1Store]: treesize reduction 15, result has 48.3 percent of original size [2021-11-25 18:39:20,420 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 50 treesize of output 46 [2021-11-25 18:39:20,522 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:39:20,529 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:39:20,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:39:20,547 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 18:39:20,548 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 58 treesize of output 42 [2021-11-25 18:39:20,651 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:39:20,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:39:20,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:39:20,957 INFO L354 Elim1Store]: treesize reduction 20, result has 53.5 percent of original size [2021-11-25 18:39:20,957 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 67 treesize of output 67 [2021-11-25 18:39:21,024 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 18:39:21,129 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:39:21,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:39:21,139 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:39:21,141 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 16 [2021-11-25 18:39:22,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:39:23,225 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 18:39:23,226 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 9 case distinctions, treesize of input 4034 treesize of output 5426 [2021-11-25 18:39:31,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:39:31,084 INFO L244 Elim1Store]: Index analysis took 170 ms [2021-11-25 18:39:31,246 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:39:31,329 INFO L354 Elim1Store]: treesize reduction 1832, result has 0.1 percent of original size [2021-11-25 18:39:31,329 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 9 case distinctions, treesize of input 4045 treesize of output 3583 [2021-11-25 18:39:31,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:39:31,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:39:31,680 INFO L244 Elim1Store]: Index analysis took 190 ms [2021-11-25 18:39:31,917 INFO L354 Elim1Store]: treesize reduction 1822, result has 0.1 percent of original size [2021-11-25 18:39:31,918 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 4050 treesize of output 3588 [2021-11-25 18:39:32,013 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 18:39:32,105 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:39:32,121 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:39:32,123 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:39:32,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:39:32,182 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:39:32,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:39:32,208 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:39:32,231 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:39:32,231 INFO L244 Elim1Store]: Index analysis took 127 ms [2021-11-25 18:39:32,232 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 11 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 2156 treesize of output 1706 [2021-11-25 18:39:32,301 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 18:39:32,388 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 18:39:32,460 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:39:32,479 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:39:32,480 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:39:32,493 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:39:32,510 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:39:32,523 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:39:32,529 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:39:32,665 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 18:39:32,666 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 2156 treesize of output 1758 [2021-11-25 18:39:32,763 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 18:39:33,229 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:39:33,229 INFO L244 Elim1Store]: Index analysis took 331 ms [2021-11-25 18:39:33,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:39:35,204 INFO L354 Elim1Store]: treesize reduction 476, result has 74.2 percent of original size [2021-11-25 18:39:35,205 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 9 case distinctions, treesize of input 2677 treesize of output 3577 [2021-11-25 18:39:35,457 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 18:39:35,511 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 18:39:39,508 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:39:39,557 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:39:39,589 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:39:39,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:39:39,643 INFO L244 Elim1Store]: Index analysis took 266 ms [2021-11-25 18:39:45,077 WARN L227 SmtUtils]: Spent 5.13s on a formula simplification. DAG size of input: 152 DAG size of output: 122 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-25 18:39:45,078 INFO L354 Elim1Store]: treesize reduction 1554, result has 60.0 percent of original size [2021-11-25 18:39:45,079 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 9 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 31 case distinctions, treesize of input 273781 treesize of output 274365 [2021-11-25 18:44:19,360 WARN L227 SmtUtils]: Spent 7.44s on a formula simplification that was a NOOP. DAG size: 1707 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify)