./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test3-2.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_cea1e1a4-e337-4595-b897-f6be42168ecf/bin/utaipan-eEHZpOm5b7/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cea1e1a4-e337-4595-b897-f6be42168ecf/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_cea1e1a4-e337-4595-b897-f6be42168ecf/bin/utaipan-eEHZpOm5b7/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cea1e1a4-e337-4595-b897-f6be42168ecf/bin/utaipan-eEHZpOm5b7/config/TaipanReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test3-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cea1e1a4-e337-4595-b897-f6be42168ecf/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_cea1e1a4-e337-4595-b897-f6be42168ecf/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 d11f955236406002afd026860cf5cae6834e26918579de44c447a4ac30cb678d --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-11-25 17:59:16,854 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-25 17:59:16,856 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-25 17:59:16,902 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-25 17:59:16,902 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-25 17:59:16,904 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-25 17:59:16,907 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-25 17:59:16,910 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-25 17:59:16,913 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-25 17:59:16,915 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-25 17:59:16,917 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-25 17:59:16,919 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-25 17:59:16,920 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-25 17:59:16,922 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-25 17:59:16,924 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-25 17:59:16,926 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-25 17:59:16,927 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-25 17:59:16,929 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-25 17:59:16,932 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-25 17:59:16,936 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-25 17:59:16,939 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-25 17:59:16,941 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-25 17:59:16,943 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-25 17:59:16,945 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-25 17:59:16,950 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-25 17:59:16,951 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-25 17:59:16,951 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-25 17:59:16,953 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-25 17:59:16,954 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-25 17:59:16,955 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-25 17:59:16,956 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-25 17:59:16,957 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-25 17:59:16,958 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-25 17:59:16,960 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-25 17:59:16,961 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-25 17:59:16,962 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-25 17:59:16,963 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-25 17:59:16,964 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-25 17:59:16,964 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-25 17:59:16,966 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-25 17:59:16,967 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-25 17:59:16,968 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cea1e1a4-e337-4595-b897-f6be42168ecf/bin/utaipan-eEHZpOm5b7/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-25 17:59:17,004 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-25 17:59:17,008 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-25 17:59:17,010 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-25 17:59:17,011 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-25 17:59:17,012 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-25 17:59:17,012 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-25 17:59:17,013 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-25 17:59:17,013 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-25 17:59:17,013 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-25 17:59:17,014 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-25 17:59:17,015 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-25 17:59:17,015 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-25 17:59:17,016 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-25 17:59:17,016 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-25 17:59:17,016 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-25 17:59:17,017 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-25 17:59:17,017 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-25 17:59:17,017 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-25 17:59:17,019 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-25 17:59:17,019 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-25 17:59:17,020 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-25 17:59:17,020 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-25 17:59:17,020 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-25 17:59:17,021 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-25 17:59:17,021 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-25 17:59:17,021 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-25 17:59:17,023 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-25 17:59:17,023 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-25 17:59:17,024 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-25 17:59:17,024 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-25 17:59:17,025 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-25 17:59:17,025 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-25 17:59:17,025 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 17:59:17,026 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-25 17:59:17,026 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-25 17:59:17,026 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-25 17:59:17,027 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-25 17:59:17,027 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-25 17:59:17,027 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-25 17:59:17,028 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-25 17:59:17,028 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-25 17:59:17,028 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_cea1e1a4-e337-4595-b897-f6be42168ecf/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cea1e1a4-e337-4595-b897-f6be42168ecf/bin/utaipan-eEHZpOm5b7 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d11f955236406002afd026860cf5cae6834e26918579de44c447a4ac30cb678d [2021-11-25 17:59:17,420 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-25 17:59:17,446 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-25 17:59:17,450 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-25 17:59:17,451 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-25 17:59:17,452 INFO L275 PluginConnector]: CDTParser initialized [2021-11-25 17:59:17,454 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cea1e1a4-e337-4595-b897-f6be42168ecf/bin/utaipan-eEHZpOm5b7/../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test3-2.i [2021-11-25 17:59:17,536 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cea1e1a4-e337-4595-b897-f6be42168ecf/bin/utaipan-eEHZpOm5b7/data/b3e9e7076/b1399b0a48584eba9015e9c66a5d76b6/FLAG3b50c1a5e [2021-11-25 17:59:18,440 INFO L306 CDTParser]: Found 1 translation units. [2021-11-25 17:59:18,442 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cea1e1a4-e337-4595-b897-f6be42168ecf/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test3-2.i [2021-11-25 17:59:18,461 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cea1e1a4-e337-4595-b897-f6be42168ecf/bin/utaipan-eEHZpOm5b7/data/b3e9e7076/b1399b0a48584eba9015e9c66a5d76b6/FLAG3b50c1a5e [2021-11-25 17:59:18,567 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cea1e1a4-e337-4595-b897-f6be42168ecf/bin/utaipan-eEHZpOm5b7/data/b3e9e7076/b1399b0a48584eba9015e9c66a5d76b6 [2021-11-25 17:59:18,571 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-25 17:59:18,574 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-25 17:59:18,580 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-25 17:59:18,580 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-25 17:59:18,584 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-25 17:59:18,586 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:59:18" (1/1) ... [2021-11-25 17:59:18,588 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@50d79c9a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:59:18, skipping insertion in model container [2021-11-25 17:59:18,589 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:59:18" (1/1) ... [2021-11-25 17:59:18,598 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-25 17:59:18,700 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-25 17:59:19,407 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_cea1e1a4-e337-4595-b897-f6be42168ecf/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test3-2.i[33021,33034] [2021-11-25 17:59:19,633 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_cea1e1a4-e337-4595-b897-f6be42168ecf/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test3-2.i[44590,44603] [2021-11-25 17:59:19,664 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 17:59:19,685 INFO L203 MainTranslator]: Completed pre-run [2021-11-25 17:59:19,753 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_cea1e1a4-e337-4595-b897-f6be42168ecf/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test3-2.i[33021,33034] [2021-11-25 17:59:19,857 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_cea1e1a4-e337-4595-b897-f6be42168ecf/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test3-2.i[44590,44603] [2021-11-25 17:59:19,866 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 17:59:19,932 INFO L208 MainTranslator]: Completed translation [2021-11-25 17:59:19,932 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:59:19 WrapperNode [2021-11-25 17:59:19,933 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-25 17:59:19,934 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-25 17:59:19,934 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-25 17:59:19,934 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-25 17:59:19,944 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:59:19" (1/1) ... [2021-11-25 17:59:20,009 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:59:19" (1/1) ... [2021-11-25 17:59:20,114 INFO L137 Inliner]: procedures = 177, calls = 336, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1181 [2021-11-25 17:59:20,122 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-25 17:59:20,123 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-25 17:59:20,123 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-25 17:59:20,124 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-25 17:59:20,136 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:59:19" (1/1) ... [2021-11-25 17:59:20,136 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:59:19" (1/1) ... [2021-11-25 17:59:20,159 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:59:19" (1/1) ... [2021-11-25 17:59:20,159 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:59:19" (1/1) ... [2021-11-25 17:59:20,245 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:59:19" (1/1) ... [2021-11-25 17:59:20,261 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:59:19" (1/1) ... [2021-11-25 17:59:20,267 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:59:19" (1/1) ... [2021-11-25 17:59:20,281 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-25 17:59:20,282 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-25 17:59:20,283 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-25 17:59:20,283 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-25 17:59:20,284 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:59:19" (1/1) ... [2021-11-25 17:59:20,293 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 17:59:20,311 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cea1e1a4-e337-4595-b897-f6be42168ecf/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 17:59:20,325 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cea1e1a4-e337-4595-b897-f6be42168ecf/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-25 17:59:20,364 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cea1e1a4-e337-4595-b897-f6be42168ecf/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-25 17:59:20,406 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-25 17:59:20,407 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-25 17:59:20,407 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-25 17:59:20,407 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-25 17:59:20,407 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-25 17:59:20,408 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-25 17:59:20,408 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-25 17:59:20,408 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-25 17:59:20,408 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-25 17:59:20,408 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-25 17:59:20,409 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-25 17:59:20,409 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-25 17:59:20,409 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-25 17:59:20,409 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-25 17:59:20,409 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-25 17:59:20,410 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-25 17:59:20,668 INFO L236 CfgBuilder]: Building ICFG [2021-11-25 17:59:20,670 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-25 17:59:22,206 INFO L277 CfgBuilder]: Performing block encoding [2021-11-25 17:59:22,795 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-25 17:59:22,795 INFO L301 CfgBuilder]: Removed 72 assume(true) statements. [2021-11-25 17:59:22,799 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:59:22 BoogieIcfgContainer [2021-11-25 17:59:22,799 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-25 17:59:22,801 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-25 17:59:22,801 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-25 17:59:22,805 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-25 17:59:22,806 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 05:59:18" (1/3) ... [2021-11-25 17:59:22,807 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@158ecd4b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:59:22, skipping insertion in model container [2021-11-25 17:59:22,807 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:59:19" (2/3) ... [2021-11-25 17:59:22,808 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@158ecd4b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:59:22, skipping insertion in model container [2021-11-25 17:59:22,808 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:59:22" (3/3) ... [2021-11-25 17:59:22,809 INFO L111 eAbstractionObserver]: Analyzing ICFG uthash_SFH_test3-2.i [2021-11-25 17:59:22,819 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-25 17:59:22,819 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-11-25 17:59:22,889 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-25 17:59:22,899 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 17:59:22,899 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-11-25 17:59:22,940 INFO L276 IsEmpty]: Start isEmpty. Operand has 137 states, 124 states have (on average 1.7983870967741935) internal successors, (223), 131 states have internal predecessors, (223), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2021-11-25 17:59:22,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-25 17:59:22,947 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 17:59:22,948 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 17:59:22,949 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 17:59:22,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 17:59:22,960 INFO L85 PathProgramCache]: Analyzing trace with hash 2145808350, now seen corresponding path program 1 times [2021-11-25 17:59:22,972 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 17:59:22,974 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [307544375] [2021-11-25 17:59:22,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 17:59:22,976 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 17:59:23,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 17:59:23,226 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 17:59:23,227 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 17:59:23,228 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [307544375] [2021-11-25 17:59:23,229 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [307544375] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 17:59:23,229 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 17:59:23,230 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-25 17:59:23,232 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1827947036] [2021-11-25 17:59:23,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 17:59:23,238 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-25 17:59:23,238 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 17:59:23,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-25 17:59:23,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-25 17:59:23,285 INFO L87 Difference]: Start difference. First operand has 137 states, 124 states have (on average 1.7983870967741935) internal successors, (223), 131 states have internal predecessors, (223), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) 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 17:59:24,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 17:59:24,019 INFO L93 Difference]: Finished difference Result 273 states and 482 transitions. [2021-11-25 17:59:24,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-25 17:59:24,029 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 17:59:24,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 17:59:24,048 INFO L225 Difference]: With dead ends: 273 [2021-11-25 17:59:24,051 INFO L226 Difference]: Without dead ends: 122 [2021-11-25 17:59:24,057 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 17:59:24,065 INFO L933 BasicCegarLoop]: 144 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 144 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-11-25 17:59:24,071 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 144 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-11-25 17:59:24,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2021-11-25 17:59:24,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 122. [2021-11-25 17:59:24,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 110 states have (on average 1.2181818181818183) internal successors, (134), 116 states have internal predecessors, (134), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2021-11-25 17:59:24,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 150 transitions. [2021-11-25 17:59:24,138 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 150 transitions. Word has length 8 [2021-11-25 17:59:24,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 17:59:24,139 INFO L470 AbstractCegarLoop]: Abstraction has 122 states and 150 transitions. [2021-11-25 17:59:24,139 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 17:59:24,140 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 150 transitions. [2021-11-25 17:59:24,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-25 17:59:24,141 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 17:59:24,142 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 17:59:24,142 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-25 17:59:24,142 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 17:59:24,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 17:59:24,144 INFO L85 PathProgramCache]: Analyzing trace with hash 131240621, now seen corresponding path program 1 times [2021-11-25 17:59:24,144 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 17:59:24,144 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1530771604] [2021-11-25 17:59:24,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 17:59:24,145 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 17:59:24,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 17:59:24,249 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 17:59:24,250 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 17:59:24,250 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1530771604] [2021-11-25 17:59:24,251 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1530771604] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 17:59:24,251 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 17:59:24,251 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 17:59:24,251 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1216718426] [2021-11-25 17:59:24,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 17:59:24,254 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 17:59:24,254 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 17:59:24,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 17:59:24,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 17:59:24,258 INFO L87 Difference]: Start difference. First operand 122 states and 150 transitions. Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 17:59:26,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 17:59:26,396 INFO L93 Difference]: Finished difference Result 258 states and 326 transitions. [2021-11-25 17:59:26,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 17:59:26,406 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2021-11-25 17:59:26,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 17:59:26,411 INFO L225 Difference]: With dead ends: 258 [2021-11-25 17:59:26,411 INFO L226 Difference]: Without dead ends: 189 [2021-11-25 17:59:26,413 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 17:59:26,415 INFO L933 BasicCegarLoop]: 128 mSDtfsCounter, 73 mSDsluCounter, 247 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 359 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2021-11-25 17:59:26,416 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [78 Valid, 359 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2021-11-25 17:59:26,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2021-11-25 17:59:26,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 124. [2021-11-25 17:59:26,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124 states, 112 states have (on average 1.2142857142857142) internal successors, (136), 118 states have internal predecessors, (136), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2021-11-25 17:59:26,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 152 transitions. [2021-11-25 17:59:26,440 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 152 transitions. Word has length 13 [2021-11-25 17:59:26,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 17:59:26,441 INFO L470 AbstractCegarLoop]: Abstraction has 124 states and 152 transitions. [2021-11-25 17:59:26,441 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 17:59:26,441 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 152 transitions. [2021-11-25 17:59:26,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-11-25 17:59:26,444 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 17:59:26,444 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 17:59:26,444 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-25 17:59:26,445 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 17:59:26,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 17:59:26,446 INFO L85 PathProgramCache]: Analyzing trace with hash 993801336, now seen corresponding path program 1 times [2021-11-25 17:59:26,446 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 17:59:26,447 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1268545827] [2021-11-25 17:59:26,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 17:59:26,447 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 17:59:26,623 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-25 17:59:26,623 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [342896865] [2021-11-25 17:59:26,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 17:59:26,624 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 17:59:26,624 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cea1e1a4-e337-4595-b897-f6be42168ecf/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 17:59:26,656 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cea1e1a4-e337-4595-b897-f6be42168ecf/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 17:59:26,670 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cea1e1a4-e337-4595-b897-f6be42168ecf/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-25 17:59:27,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 17:59:27,598 INFO L263 TraceCheckSpWp]: Trace formula consists of 1624 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-25 17:59:27,608 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 17:59:27,761 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 17:59:27,761 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 17:59:27,761 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 17:59:27,762 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1268545827] [2021-11-25 17:59:27,762 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-25 17:59:27,762 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [342896865] [2021-11-25 17:59:27,763 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [342896865] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 17:59:27,763 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 17:59:27,763 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-25 17:59:27,764 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1295090347] [2021-11-25 17:59:27,764 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 17:59:27,764 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 17:59:27,765 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 17:59:27,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 17:59:27,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 17:59:27,766 INFO L87 Difference]: Start difference. First operand 124 states and 152 transitions. Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 2 states have internal predecessors, (36), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 17:59:28,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 17:59:28,657 INFO L93 Difference]: Finished difference Result 304 states and 377 transitions. [2021-11-25 17:59:28,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 17:59:28,669 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 2 states have internal predecessors, (36), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2021-11-25 17:59:28,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 17:59:28,671 INFO L225 Difference]: With dead ends: 304 [2021-11-25 17:59:28,672 INFO L226 Difference]: Without dead ends: 183 [2021-11-25 17:59:28,673 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 35 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 17:59:28,675 INFO L933 BasicCegarLoop]: 165 mSDtfsCounter, 58 mSDsluCounter, 127 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 280 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-11-25 17:59:28,675 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [65 Valid, 280 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-11-25 17:59:28,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2021-11-25 17:59:28,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 167. [2021-11-25 17:59:28,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167 states, 155 states have (on average 1.1935483870967742) internal successors, (185), 161 states have internal predecessors, (185), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2021-11-25 17:59:28,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 201 transitions. [2021-11-25 17:59:28,720 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 201 transitions. Word has length 37 [2021-11-25 17:59:28,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 17:59:28,720 INFO L470 AbstractCegarLoop]: Abstraction has 167 states and 201 transitions. [2021-11-25 17:59:28,721 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 2 states have internal predecessors, (36), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 17:59:28,721 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 201 transitions. [2021-11-25 17:59:28,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-11-25 17:59:28,725 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 17:59:28,726 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 17:59:28,776 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cea1e1a4-e337-4595-b897-f6be42168ecf/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-25 17:59:28,940 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cea1e1a4-e337-4595-b897-f6be42168ecf/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 17:59:28,940 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 17:59:28,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 17:59:28,941 INFO L85 PathProgramCache]: Analyzing trace with hash 237821332, now seen corresponding path program 1 times [2021-11-25 17:59:28,941 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 17:59:28,942 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [532841385] [2021-11-25 17:59:28,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 17:59:28,942 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 17:59:29,036 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-25 17:59:29,037 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1206523037] [2021-11-25 17:59:29,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 17:59:29,037 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 17:59:29,037 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cea1e1a4-e337-4595-b897-f6be42168ecf/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 17:59:29,038 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cea1e1a4-e337-4595-b897-f6be42168ecf/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 17:59:29,045 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cea1e1a4-e337-4595-b897-f6be42168ecf/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-25 17:59:29,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 17:59:29,658 INFO L263 TraceCheckSpWp]: Trace formula consists of 761 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-25 17:59:29,664 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 17:59:29,829 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 17:59:29,847 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2021-11-25 17:59:29,868 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-25 17:59:29,869 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 17:59:29,869 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 17:59:29,869 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [532841385] [2021-11-25 17:59:29,870 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-25 17:59:29,870 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1206523037] [2021-11-25 17:59:29,870 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1206523037] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 17:59:29,870 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 17:59:29,870 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 17:59:29,871 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1776363837] [2021-11-25 17:59:29,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 17:59:29,872 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 17:59:29,872 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 17:59:29,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 17:59:29,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 17:59:29,873 INFO L87 Difference]: Start difference. First operand 167 states and 201 transitions. Second operand has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-25 17:59:31,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 17:59:31,629 INFO L93 Difference]: Finished difference Result 231 states and 285 transitions. [2021-11-25 17:59:31,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 17:59:31,635 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 50 [2021-11-25 17:59:31,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 17:59:31,638 INFO L225 Difference]: With dead ends: 231 [2021-11-25 17:59:31,638 INFO L226 Difference]: Without dead ends: 212 [2021-11-25 17:59:31,639 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 47 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 17:59:31,640 INFO L933 BasicCegarLoop]: 125 mSDtfsCounter, 46 mSDsluCounter, 250 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 358 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2021-11-25 17:59:31,641 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [46 Valid, 358 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2021-11-25 17:59:31,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2021-11-25 17:59:31,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 169. [2021-11-25 17:59:31,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169 states, 157 states have (on average 1.1910828025477707) internal successors, (187), 163 states have internal predecessors, (187), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2021-11-25 17:59:31,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 203 transitions. [2021-11-25 17:59:31,661 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 203 transitions. Word has length 50 [2021-11-25 17:59:31,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 17:59:31,662 INFO L470 AbstractCegarLoop]: Abstraction has 169 states and 203 transitions. [2021-11-25 17:59:31,662 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-25 17:59:31,663 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 203 transitions. [2021-11-25 17:59:31,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-11-25 17:59:31,665 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 17:59:31,666 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 17:59:31,720 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cea1e1a4-e337-4595-b897-f6be42168ecf/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-25 17:59:31,880 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cea1e1a4-e337-4595-b897-f6be42168ecf/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 17:59:31,880 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 17:59:31,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 17:59:31,881 INFO L85 PathProgramCache]: Analyzing trace with hash 375836451, now seen corresponding path program 1 times [2021-11-25 17:59:31,881 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 17:59:31,881 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1443092276] [2021-11-25 17:59:31,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 17:59:31,882 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 17:59:31,949 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-25 17:59:31,950 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1871082454] [2021-11-25 17:59:31,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 17:59:31,950 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 17:59:31,951 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cea1e1a4-e337-4595-b897-f6be42168ecf/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 17:59:31,958 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cea1e1a4-e337-4595-b897-f6be42168ecf/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 17:59:31,963 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cea1e1a4-e337-4595-b897-f6be42168ecf/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-25 17:59:32,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 17:59:32,551 INFO L263 TraceCheckSpWp]: Trace formula consists of 785 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-25 17:59:32,562 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 17:59:32,764 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-25 17:59:32,764 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 17:59:32,765 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 17:59:32,765 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1443092276] [2021-11-25 17:59:32,765 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-25 17:59:32,765 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1871082454] [2021-11-25 17:59:32,765 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1871082454] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 17:59:32,765 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 17:59:32,766 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 17:59:32,766 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1957073796] [2021-11-25 17:59:32,766 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 17:59:32,767 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 17:59:32,767 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 17:59:32,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 17:59:32,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 17:59:32,768 INFO L87 Difference]: Start difference. First operand 169 states and 203 transitions. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-25 17:59:33,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 17:59:33,679 INFO L93 Difference]: Finished difference Result 395 states and 492 transitions. [2021-11-25 17:59:33,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-25 17:59:33,681 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 57 [2021-11-25 17:59:33,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 17:59:33,684 INFO L225 Difference]: With dead ends: 395 [2021-11-25 17:59:33,685 INFO L226 Difference]: Without dead ends: 242 [2021-11-25 17:59:33,685 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 17:59:33,687 INFO L933 BasicCegarLoop]: 151 mSDtfsCounter, 257 mSDsluCounter, 154 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 262 SdHoareTripleChecker+Valid, 296 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-11-25 17:59:33,687 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [262 Valid, 296 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-11-25 17:59:33,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2021-11-25 17:59:33,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 214. [2021-11-25 17:59:33,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 214 states, 202 states have (on average 1.193069306930693) internal successors, (241), 208 states have internal predecessors, (241), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2021-11-25 17:59:33,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 257 transitions. [2021-11-25 17:59:33,713 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 257 transitions. Word has length 57 [2021-11-25 17:59:33,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 17:59:33,714 INFO L470 AbstractCegarLoop]: Abstraction has 214 states and 257 transitions. [2021-11-25 17:59:33,714 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-25 17:59:33,714 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 257 transitions. [2021-11-25 17:59:33,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-11-25 17:59:33,717 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 17:59:33,717 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 17:59:33,757 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cea1e1a4-e337-4595-b897-f6be42168ecf/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-25 17:59:33,932 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cea1e1a4-e337-4595-b897-f6be42168ecf/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 17:59:33,932 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 17:59:33,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 17:59:33,933 INFO L85 PathProgramCache]: Analyzing trace with hash 1459918940, now seen corresponding path program 1 times [2021-11-25 17:59:33,933 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 17:59:33,934 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1513352886] [2021-11-25 17:59:33,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 17:59:33,934 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 17:59:34,014 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-25 17:59:34,014 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [247393680] [2021-11-25 17:59:34,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 17:59:34,015 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 17:59:34,015 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cea1e1a4-e337-4595-b897-f6be42168ecf/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 17:59:34,021 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cea1e1a4-e337-4595-b897-f6be42168ecf/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 17:59:34,022 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cea1e1a4-e337-4595-b897-f6be42168ecf/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-25 17:59:37,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 17:59:37,888 INFO L263 TraceCheckSpWp]: Trace formula consists of 810 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-25 17:59:37,894 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 17:59:38,028 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 17:59:38,028 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 17:59:38,028 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 17:59:38,029 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1513352886] [2021-11-25 17:59:38,029 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-25 17:59:38,029 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [247393680] [2021-11-25 17:59:38,029 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [247393680] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 17:59:38,029 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 17:59:38,030 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 17:59:38,030 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1569132717] [2021-11-25 17:59:38,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 17:59:38,031 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 17:59:38,031 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 17:59:38,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 17:59:38,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 17:59:38,032 INFO L87 Difference]: Start difference. First operand 214 states and 257 transitions. Second operand has 4 states, 3 states have (on average 20.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-25 17:59:39,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 17:59:39,051 INFO L93 Difference]: Finished difference Result 411 states and 498 transitions. [2021-11-25 17:59:39,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 17:59:39,058 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 20.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 64 [2021-11-25 17:59:39,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 17:59:39,060 INFO L225 Difference]: With dead ends: 411 [2021-11-25 17:59:39,060 INFO L226 Difference]: Without dead ends: 216 [2021-11-25 17:59:39,061 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 17:59:39,062 INFO L933 BasicCegarLoop]: 131 mSDtfsCounter, 1 mSDsluCounter, 290 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 389 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-11-25 17:59:39,063 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 389 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-11-25 17:59:39,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2021-11-25 17:59:39,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 216. [2021-11-25 17:59:39,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 216 states, 203 states have (on average 1.1970443349753694) internal successors, (243), 210 states have internal predecessors, (243), 8 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (9), 4 states have call predecessors, (9), 8 states have call successors, (9) [2021-11-25 17:59:39,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 260 transitions. [2021-11-25 17:59:39,087 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 260 transitions. Word has length 64 [2021-11-25 17:59:39,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 17:59:39,088 INFO L470 AbstractCegarLoop]: Abstraction has 216 states and 260 transitions. [2021-11-25 17:59:39,088 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 20.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-25 17:59:39,088 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 260 transitions. [2021-11-25 17:59:39,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-11-25 17:59:39,090 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 17:59:39,091 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 17:59:39,142 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cea1e1a4-e337-4595-b897-f6be42168ecf/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-25 17:59:39,312 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cea1e1a4-e337-4595-b897-f6be42168ecf/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2021-11-25 17:59:39,312 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 17:59:39,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 17:59:39,313 INFO L85 PathProgramCache]: Analyzing trace with hash -1243076896, now seen corresponding path program 1 times [2021-11-25 17:59:39,313 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 17:59:39,314 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [588395360] [2021-11-25 17:59:39,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 17:59:39,314 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 17:59:39,389 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-25 17:59:39,389 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1633837187] [2021-11-25 17:59:39,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 17:59:39,390 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 17:59:39,396 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cea1e1a4-e337-4595-b897-f6be42168ecf/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 17:59:39,397 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cea1e1a4-e337-4595-b897-f6be42168ecf/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 17:59:39,401 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cea1e1a4-e337-4595-b897-f6be42168ecf/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-25 17:59:40,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 17:59:40,858 INFO L263 TraceCheckSpWp]: Trace formula consists of 840 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-25 17:59:40,863 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 17:59:41,014 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-25 17:59:41,014 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 17:59:41,307 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-25 17:59:41,307 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 17:59:41,307 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [588395360] [2021-11-25 17:59:41,307 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-25 17:59:41,307 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1633837187] [2021-11-25 17:59:41,307 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1633837187] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 17:59:41,308 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [25993457] [2021-11-25 17:59:41,340 INFO L159 IcfgInterpreter]: Started Sifa with 60 locations of interest [2021-11-25 17:59:41,340 INFO L166 IcfgInterpreter]: Building call graph [2021-11-25 17:59:41,347 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-25 17:59:41,353 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-25 17:59:41,354 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-25 17:59:41,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:59:41,548 INFO L354 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2021-11-25 17:59:41,549 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 17:59:41,565 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:59:41,584 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-25 17:59:41,585 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 17:59:41,600 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:59:41,602 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2021-11-25 17:59:41,618 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 15 treesize of output 1 [2021-11-25 17:59:41,627 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 15 treesize of output 1 [2021-11-25 17:59:41,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:59:41,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:59:41,693 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:59:41,695 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:59:41,696 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:59:41,712 INFO L354 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2021-11-25 17:59:41,712 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 17:59:41,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:59:41,748 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 17:59:41,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:59:41,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:59:41,798 INFO L354 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2021-11-25 17:59:41,799 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 17:59:41,826 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:59:41,828 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 17:59:41,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:59:41,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:59:41,921 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-11-25 17:59:41,922 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 17:59:42,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:59:42,389 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:59:42,391 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:59:42,392 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:59:42,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:59:42,394 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:59:42,395 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:59:42,397 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:59:42,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:59:42,408 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 17:59:42,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:59:42,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:59:42,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:59:42,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:59:42,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:59:42,442 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:59:42,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:59:42,444 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:59:42,447 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 17:59:42,475 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:59:42,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:59:42,477 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:59:42,479 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 17:59:42,506 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:59:42,507 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:59:42,508 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:59:42,511 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 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 17:59:42,558 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:59:42,560 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:59:42,561 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:59:42,563 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 17:59:42,588 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:59:42,590 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:59:42,591 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:59:42,592 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:59:42,593 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:59:42,595 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:59:42,598 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:59:42,599 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:59:42,600 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:59:42,601 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:59:42,603 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:59:42,604 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:59:42,618 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 89 treesize of output 79 [2021-11-25 17:59:42,639 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:59:42,641 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:59:42,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:59:42,643 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:59:42,645 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:59:42,646 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:59:42,647 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:59:42,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:59:42,649 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:59:42,650 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:59:42,652 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:59:42,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:59:42,654 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:59:42,659 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 89 treesize of output 79 [2021-11-25 17:59:42,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:59:42,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:59:42,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:59:42,691 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 17:59:42,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:59:42,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:59:42,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:59:42,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:59:42,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:59:42,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:59:42,760 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 17:59:42,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:59:42,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:59:42,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:59:42,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:59:42,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:59:42,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:59:42,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:59:42,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:59:42,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:59:42,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:59:42,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:59:42,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:59:42,795 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 17:59:42,874 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:59:42,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:59:42,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:59:42,879 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:59:42,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:59:42,882 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:59:42,892 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 17:59:42,914 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:59:42,921 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:59:42,922 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:59:42,999 INFO L354 Elim1Store]: treesize reduction 90, result has 33.8 percent of original size [2021-11-25 17:59:42,999 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 17:59:43,022 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:59:43,027 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:59:43,028 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:59:43,030 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 17:59:43,187 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 17:59:43,193 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 17:59:43,199 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 17:59:43,266 INFO L354 Elim1Store]: treesize reduction 21, result has 34.4 percent of original size [2021-11-25 17:59:43,267 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 17:59:43,305 INFO L354 Elim1Store]: treesize reduction 19, result has 36.7 percent of original size [2021-11-25 17:59:43,306 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 17:59:43,345 INFO L354 Elim1Store]: treesize reduction 19, result has 36.7 percent of original size [2021-11-25 17:59:43,346 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 17:59:43,402 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 17:59:43,408 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 17:59:43,415 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 17:59:43,504 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:59:43,505 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:59:43,506 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:59:43,507 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:59:43,509 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:59:43,510 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:59:43,511 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:59:43,512 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:59:43,513 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:59:43,515 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 17:59:43,532 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:59:43,534 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:59:43,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:59:43,537 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:59:43,538 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:59:43,539 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:59:43,540 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 17:59:43,567 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:59:43,568 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:59:43,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:59:43,570 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:59:43,571 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:59:43,573 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:59:43,574 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 17:59:43,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:59:43,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:59:43,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:59:43,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:59:43,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:59:43,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:59:43,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:59:43,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:59:43,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:59:43,759 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 17:59:43,773 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:59:43,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:59:43,776 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:59:43,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:59:43,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:59:43,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:59:43,785 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 17:59:43,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:59:43,812 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:59:43,813 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:59:43,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:59:43,815 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:59:43,816 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:59:43,820 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 17:59:52,781 WARN L227 SmtUtils]: Spent 8.78s 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 17:59:52,782 INFO L354 Elim1Store]: treesize reduction 348, result has 15.7 percent of original size [2021-11-25 17:59:52,783 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 17:59:52,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:00:04,575 WARN L227 SmtUtils]: Spent 11.65s 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 18:00:04,575 INFO L354 Elim1Store]: treesize reduction 262, result has 32.6 percent of original size [2021-11-25 18:00:04,576 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 18:00:05,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:00:05,331 INFO L244 Elim1Store]: Index analysis took 502 ms [2021-11-25 18:00:18,537 WARN L227 SmtUtils]: Spent 12.91s on a formula simplification. DAG size of input: 245 DAG size of output: 143 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-25 18:00:18,538 INFO L354 Elim1Store]: treesize reduction 2494, result has 31.7 percent of original size [2021-11-25 18:00:18,538 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 1542 treesize of output 1373 [2021-11-25 18:00:19,210 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:00:19,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:00:19,381 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:00:19,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:00:19,401 INFO L244 Elim1Store]: Index analysis took 265 ms [2021-11-25 18:00:20,559 INFO L354 Elim1Store]: treesize reduction 72, result has 33.9 percent of original size [2021-11-25 18:00:20,559 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 18:00:20,891 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:00:20,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:00:20,951 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:00:20,987 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:00:20,988 INFO L244 Elim1Store]: Index analysis took 128 ms [2021-11-25 18:00:20,996 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 18:00:21,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:00:21,840 INFO L354 Elim1Store]: treesize reduction 28, result has 3.4 percent of original size [2021-11-25 18:00:21,840 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 46 treesize of output 30 [2021-11-25 18:00:22,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:00:22,395 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 18:00:22,395 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 53 treesize of output 63 [2021-11-25 18:00:22,672 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 18:00:22,753 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 18:00:22,892 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 18:00:22,976 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 18:00:23,149 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 18:00:23,231 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 18:00:23,372 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:00:23,375 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:00:23,411 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:00:23,414 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:00:23,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:00:23,477 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:00:23,494 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:00:23,552 INFO L244 Elim1Store]: Index analysis took 198 ms [2021-11-25 18:00:23,686 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 18:00:23,686 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 3084 treesize of output 2866 [2021-11-25 18:00:23,980 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 18:00:24,266 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 18:00:24,366 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:00:24,385 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:00:24,406 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:00:24,408 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:00:24,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:00:24,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:00:24,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:00:24,494 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:00:24,494 INFO L244 Elim1Store]: Index analysis took 128 ms [2021-11-25 18:00:24,496 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 3096 treesize of output 2648 [2021-11-25 18:00:24,922 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:00:24,923 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:00:24,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:00:24,950 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:00:24,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:00:24,977 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:00:25,014 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:00:25,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:00:25,062 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:00:25,064 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:00:25,092 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:00:25,093 INFO L244 Elim1Store]: Index analysis took 193 ms [2021-11-25 18:00:25,095 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 4 new quantified variables, introduced 0 case distinctions, treesize of input 3105 treesize of output 2651 [2021-11-25 18:00:25,637 INFO L244 Elim1Store]: Index analysis took 293 ms [2021-11-25 18:00:29,226 INFO L354 Elim1Store]: treesize reduction 468, result has 74.7 percent of original size [2021-11-25 18:00:29,227 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 3105 treesize of output 4035 [2021-11-25 18:00:32,131 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 18:00:32,243 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:00:32,245 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:00:32,263 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:00:32,266 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:00:32,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:00:32,311 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:00:32,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:00:32,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:00:32,368 INFO L244 Elim1Store]: Index analysis took 140 ms [2021-11-25 18:00:32,369 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 3096 treesize of output 2648 [2021-11-25 18:00:32,617 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 18:00:32,710 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:00:32,741 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:00:32,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:00:32,773 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:00:32,833 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:00:32,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:00:32,861 INFO L244 Elim1Store]: Index analysis took 154 ms [2021-11-25 18:00:33,309 INFO L354 Elim1Store]: treesize reduction 6, result has 91.3 percent of original size [2021-11-25 18:00:33,309 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 3096 treesize of output 2710 [2021-11-25 18:00:34,531 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 18:00:34,594 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 18:00:34,707 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 18:00:34,798 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 18:00:34,995 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:00:35,029 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:00:35,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:00:35,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:00:35,088 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 3075 treesize of output 2645 [2021-11-25 18:00:35,264 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 18:00:35,490 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:00:35,491 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:00:35,525 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:00:35,616 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:00:35,616 INFO L244 Elim1Store]: Index analysis took 145 ms [2021-11-25 18:00:36,226 INFO L354 Elim1Store]: treesize reduction 793, result has 31.2 percent of original size [2021-11-25 18:00:36,226 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 3084 treesize of output 3008 [2021-11-25 18:00:36,559 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 18:00:38,279 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:00:38,281 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 36 treesize of output 20 [2021-11-25 18:00:38,325 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 18:00:38,388 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 18:00:38,474 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:00:38,476 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 15 [2021-11-25 18:00:38,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:00:39,101 INFO L354 Elim1Store]: treesize reduction 17, result has 37.0 percent of original size [2021-11-25 18:00:39,102 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 38 treesize of output 32 [2021-11-25 18:00:39,231 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:00:39,245 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:00:39,265 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:00:39,267 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 3 new quantified variables, introduced 0 case distinctions, treesize of input 81 treesize of output 59 [2021-11-25 18:00:39,315 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 18:00:42,315 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 18:00:42,940 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 18:00:43,064 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 18:00:43,101 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 18:00:43,239 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 18:00:43,366 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 18:00:47,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:00:47,461 INFO L190 IndexEqualityManager]: detected not equals via solver