./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test8-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70675458-a102-484c-8b95-e23e4cfa19c5/bin/utaipan-eEHZpOm5b7/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70675458-a102-484c-8b95-e23e4cfa19c5/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_70675458-a102-484c-8b95-e23e4cfa19c5/bin/utaipan-eEHZpOm5b7/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70675458-a102-484c-8b95-e23e4cfa19c5/bin/utaipan-eEHZpOm5b7/config/TaipanReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test8-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70675458-a102-484c-8b95-e23e4cfa19c5/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_70675458-a102-484c-8b95-e23e4cfa19c5/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 5eef0a1d7c251abc753eabb723fe850489bfd10ab147ced1a31e6821eaf88c98 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-11-25 20:23:26,163 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-25 20:23:26,165 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-25 20:23:26,218 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-25 20:23:26,219 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-25 20:23:26,223 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-25 20:23:26,226 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-25 20:23:26,231 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-25 20:23:26,234 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-25 20:23:26,241 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-25 20:23:26,243 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-25 20:23:26,245 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-25 20:23:26,246 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-25 20:23:26,249 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-25 20:23:26,253 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-25 20:23:26,263 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-25 20:23:26,265 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-25 20:23:26,266 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-25 20:23:26,269 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-25 20:23:26,279 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-25 20:23:26,281 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-25 20:23:26,283 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-25 20:23:26,287 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-25 20:23:26,288 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-25 20:23:26,299 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-25 20:23:26,300 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-25 20:23:26,301 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-25 20:23:26,303 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-25 20:23:26,304 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-25 20:23:26,306 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-25 20:23:26,307 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-25 20:23:26,308 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-25 20:23:26,311 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-25 20:23:26,313 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-25 20:23:26,315 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-25 20:23:26,315 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-25 20:23:26,316 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-25 20:23:26,317 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-25 20:23:26,317 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-25 20:23:26,319 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-25 20:23:26,320 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-25 20:23:26,321 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70675458-a102-484c-8b95-e23e4cfa19c5/bin/utaipan-eEHZpOm5b7/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-25 20:23:26,377 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-25 20:23:26,378 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-25 20:23:26,379 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-25 20:23:26,379 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-25 20:23:26,381 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-25 20:23:26,381 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-25 20:23:26,381 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-25 20:23:26,382 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-25 20:23:26,382 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-25 20:23:26,382 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-25 20:23:26,383 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-25 20:23:26,384 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-25 20:23:26,384 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-25 20:23:26,384 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-25 20:23:26,384 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-25 20:23:26,385 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-25 20:23:26,385 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-25 20:23:26,385 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-25 20:23:26,387 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-25 20:23:26,387 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-25 20:23:26,387 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-25 20:23:26,388 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-25 20:23:26,388 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-25 20:23:26,388 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-25 20:23:26,388 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-25 20:23:26,389 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-25 20:23:26,389 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-25 20:23:26,389 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-25 20:23:26,390 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-25 20:23:26,390 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-25 20:23:26,390 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-25 20:23:26,391 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-25 20:23:26,391 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 20:23:26,391 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-25 20:23:26,392 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-25 20:23:26,392 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-25 20:23:26,392 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-25 20:23:26,392 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-25 20:23:26,393 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-25 20:23:26,393 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-25 20:23:26,393 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-25 20:23:26,394 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_70675458-a102-484c-8b95-e23e4cfa19c5/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70675458-a102-484c-8b95-e23e4cfa19c5/bin/utaipan-eEHZpOm5b7 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5eef0a1d7c251abc753eabb723fe850489bfd10ab147ced1a31e6821eaf88c98 [2021-11-25 20:23:26,696 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-25 20:23:26,729 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-25 20:23:26,732 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-25 20:23:26,733 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-25 20:23:26,734 INFO L275 PluginConnector]: CDTParser initialized [2021-11-25 20:23:26,735 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70675458-a102-484c-8b95-e23e4cfa19c5/bin/utaipan-eEHZpOm5b7/../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test8-1.i [2021-11-25 20:23:26,818 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70675458-a102-484c-8b95-e23e4cfa19c5/bin/utaipan-eEHZpOm5b7/data/19b35a9a7/443ae9f6050d43bdb8fe7fdcec7b4485/FLAGf150381d6 [2021-11-25 20:23:27,461 INFO L306 CDTParser]: Found 1 translation units. [2021-11-25 20:23:27,462 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70675458-a102-484c-8b95-e23e4cfa19c5/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test8-1.i [2021-11-25 20:23:27,484 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70675458-a102-484c-8b95-e23e4cfa19c5/bin/utaipan-eEHZpOm5b7/data/19b35a9a7/443ae9f6050d43bdb8fe7fdcec7b4485/FLAGf150381d6 [2021-11-25 20:23:27,696 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70675458-a102-484c-8b95-e23e4cfa19c5/bin/utaipan-eEHZpOm5b7/data/19b35a9a7/443ae9f6050d43bdb8fe7fdcec7b4485 [2021-11-25 20:23:27,699 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-25 20:23:27,700 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-25 20:23:27,702 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-25 20:23:27,703 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-25 20:23:27,722 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-25 20:23:27,723 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:23:27" (1/1) ... [2021-11-25 20:23:27,724 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@18012bfa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:23:27, skipping insertion in model container [2021-11-25 20:23:27,724 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:23:27" (1/1) ... [2021-11-25 20:23:27,733 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-25 20:23:27,845 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-25 20:23:28,233 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_70675458-a102-484c-8b95-e23e4cfa19c5/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test8-1.i[33021,33034] [2021-11-25 20:23:28,381 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_70675458-a102-484c-8b95-e23e4cfa19c5/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test8-1.i[45234,45247] [2021-11-25 20:23:28,389 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 20:23:28,399 INFO L203 MainTranslator]: Completed pre-run [2021-11-25 20:23:28,441 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_70675458-a102-484c-8b95-e23e4cfa19c5/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test8-1.i[33021,33034] [2021-11-25 20:23:28,521 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_70675458-a102-484c-8b95-e23e4cfa19c5/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test8-1.i[45234,45247] [2021-11-25 20:23:28,524 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 20:23:28,573 INFO L208 MainTranslator]: Completed translation [2021-11-25 20:23:28,574 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:23:28 WrapperNode [2021-11-25 20:23:28,574 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-25 20:23:28,575 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-25 20:23:28,575 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-25 20:23:28,575 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-25 20:23:28,584 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:23:28" (1/1) ... [2021-11-25 20:23:28,641 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:23:28" (1/1) ... [2021-11-25 20:23:28,714 INFO L137 Inliner]: procedures = 177, calls = 297, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 996 [2021-11-25 20:23:28,714 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-25 20:23:28,715 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-25 20:23:28,715 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-25 20:23:28,715 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-25 20:23:28,725 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:23:28" (1/1) ... [2021-11-25 20:23:28,726 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:23:28" (1/1) ... [2021-11-25 20:23:28,750 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:23:28" (1/1) ... [2021-11-25 20:23:28,754 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:23:28" (1/1) ... [2021-11-25 20:23:28,813 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:23:28" (1/1) ... [2021-11-25 20:23:28,831 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:23:28" (1/1) ... [2021-11-25 20:23:28,838 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:23:28" (1/1) ... [2021-11-25 20:23:28,851 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-25 20:23:28,852 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-25 20:23:28,853 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-25 20:23:28,853 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-25 20:23:28,854 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:23:28" (1/1) ... [2021-11-25 20:23:28,915 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 20:23:28,926 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70675458-a102-484c-8b95-e23e4cfa19c5/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:23:28,980 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70675458-a102-484c-8b95-e23e4cfa19c5/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-25 20:23:28,989 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70675458-a102-484c-8b95-e23e4cfa19c5/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-25 20:23:29,033 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-25 20:23:29,034 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-25 20:23:29,034 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-25 20:23:29,034 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-25 20:23:29,035 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-25 20:23:29,035 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-25 20:23:29,035 INFO L130 BoogieDeclarations]: Found specification of procedure test_int [2021-11-25 20:23:29,035 INFO L138 BoogieDeclarations]: Found implementation of procedure test_int [2021-11-25 20:23:29,036 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-25 20:23:29,036 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-25 20:23:29,036 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-25 20:23:29,036 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-25 20:23:29,036 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-25 20:23:29,037 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-25 20:23:29,037 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-25 20:23:29,037 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-25 20:23:29,037 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-25 20:23:29,038 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-25 20:23:29,337 INFO L236 CfgBuilder]: Building ICFG [2021-11-25 20:23:29,339 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-25 20:23:30,749 INFO L277 CfgBuilder]: Performing block encoding [2021-11-25 20:23:31,220 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-25 20:23:31,220 INFO L301 CfgBuilder]: Removed 62 assume(true) statements. [2021-11-25 20:23:31,224 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:23:31 BoogieIcfgContainer [2021-11-25 20:23:31,224 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-25 20:23:31,226 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-25 20:23:31,226 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-25 20:23:31,230 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-25 20:23:31,230 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 08:23:27" (1/3) ... [2021-11-25 20:23:31,231 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@731cc7f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:23:31, skipping insertion in model container [2021-11-25 20:23:31,231 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:23:28" (2/3) ... [2021-11-25 20:23:31,232 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@731cc7f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:23:31, skipping insertion in model container [2021-11-25 20:23:31,232 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:23:31" (3/3) ... [2021-11-25 20:23:31,233 INFO L111 eAbstractionObserver]: Analyzing ICFG uthash_OAT_test8-1.i [2021-11-25 20:23:31,240 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-25 20:23:31,241 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-11-25 20:23:31,300 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-25 20:23:31,309 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 20:23:31,309 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-11-25 20:23:31,365 INFO L276 IsEmpty]: Start isEmpty. Operand has 148 states, 122 states have (on average 1.7950819672131149) internal successors, (219), 139 states have internal predecessors, (219), 20 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (20), 6 states have call predecessors, (20), 20 states have call successors, (20) [2021-11-25 20:23:31,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-25 20:23:31,378 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:23:31,378 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:23:31,379 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 20:23:31,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:23:31,386 INFO L85 PathProgramCache]: Analyzing trace with hash -1967293167, now seen corresponding path program 1 times [2021-11-25 20:23:31,401 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:23:31,403 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1172779965] [2021-11-25 20:23:31,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:23:31,405 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:23:31,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:23:31,636 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 20:23:31,637 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:23:31,638 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1172779965] [2021-11-25 20:23:31,639 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1172779965] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:23:31,639 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:23:31,640 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-25 20:23:31,642 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2131648043] [2021-11-25 20:23:31,643 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:23:31,647 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-25 20:23:31,648 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:23:31,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-25 20:23:31,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-25 20:23:31,698 INFO L87 Difference]: Start difference. First operand has 148 states, 122 states have (on average 1.7950819672131149) internal successors, (219), 139 states have internal predecessors, (219), 20 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (20), 6 states have call predecessors, (20), 20 states have call successors, (20) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:23:32,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:23:32,114 INFO L93 Difference]: Finished difference Result 295 states and 534 transitions. [2021-11-25 20:23:32,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-25 20:23:32,117 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 20:23:32,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:23:32,130 INFO L225 Difference]: With dead ends: 295 [2021-11-25 20:23:32,131 INFO L226 Difference]: Without dead ends: 146 [2021-11-25 20:23:32,137 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 20:23:32,146 INFO L933 BasicCegarLoop]: 177 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 177 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-25 20:23:32,153 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 177 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-25 20:23:32,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2021-11-25 20:23:32,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 146. [2021-11-25 20:23:32,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146 states, 121 states have (on average 1.2727272727272727) internal successors, (154), 137 states have internal predecessors, (154), 20 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (20), 6 states have call predecessors, (20), 20 states have call successors, (20) [2021-11-25 20:23:32,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 194 transitions. [2021-11-25 20:23:32,262 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 194 transitions. Word has length 8 [2021-11-25 20:23:32,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:23:32,263 INFO L470 AbstractCegarLoop]: Abstraction has 146 states and 194 transitions. [2021-11-25 20:23:32,263 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 20:23:32,263 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 194 transitions. [2021-11-25 20:23:32,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-11-25 20:23:32,266 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:23:32,266 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:23:32,266 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-25 20:23:32,266 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 20:23:32,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:23:32,267 INFO L85 PathProgramCache]: Analyzing trace with hash 1767054038, now seen corresponding path program 1 times [2021-11-25 20:23:32,268 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:23:32,268 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2005411857] [2021-11-25 20:23:32,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:23:32,268 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:23:32,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:23:32,435 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 20:23:32,436 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:23:32,436 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2005411857] [2021-11-25 20:23:32,437 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2005411857] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:23:32,437 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:23:32,437 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 20:23:32,437 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [462410609] [2021-11-25 20:23:32,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:23:32,441 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 20:23:32,441 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:23:32,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 20:23:32,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 20:23:32,449 INFO L87 Difference]: Start difference. First operand 146 states and 194 transitions. Second operand has 4 states, 4 states have (on average 5.0) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:23:35,594 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 20:23:35,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:23:35,673 INFO L93 Difference]: Finished difference Result 293 states and 390 transitions. [2021-11-25 20:23:35,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 20:23:35,679 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2021-11-25 20:23:35,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:23:35,682 INFO L225 Difference]: With dead ends: 293 [2021-11-25 20:23:35,682 INFO L226 Difference]: Without dead ends: 202 [2021-11-25 20:23:35,684 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 20:23:35,685 INFO L933 BasicCegarLoop]: 169 mSDtfsCounter, 60 mSDsluCounter, 336 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 488 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2021-11-25 20:23:35,686 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [61 Valid, 488 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 98 Invalid, 1 Unknown, 0 Unchecked, 3.2s Time] [2021-11-25 20:23:35,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2021-11-25 20:23:35,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 148. [2021-11-25 20:23:35,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 123 states have (on average 1.2682926829268293) internal successors, (156), 139 states have internal predecessors, (156), 20 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (20), 6 states have call predecessors, (20), 20 states have call successors, (20) [2021-11-25 20:23:35,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 196 transitions. [2021-11-25 20:23:35,717 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 196 transitions. Word has length 20 [2021-11-25 20:23:35,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:23:35,717 INFO L470 AbstractCegarLoop]: Abstraction has 148 states and 196 transitions. [2021-11-25 20:23:35,718 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:23:35,718 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 196 transitions. [2021-11-25 20:23:35,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-11-25 20:23:35,719 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:23:35,720 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:23:35,720 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-25 20:23:35,720 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 20:23:35,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:23:35,721 INFO L85 PathProgramCache]: Analyzing trace with hash -430271198, now seen corresponding path program 1 times [2021-11-25 20:23:35,721 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:23:35,722 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1423561943] [2021-11-25 20:23:35,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:23:35,722 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:23:35,928 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-25 20:23:35,928 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [880157239] [2021-11-25 20:23:35,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:23:35,929 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:23:35,929 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70675458-a102-484c-8b95-e23e4cfa19c5/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:23:35,935 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70675458-a102-484c-8b95-e23e4cfa19c5/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 20:23:35,965 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70675458-a102-484c-8b95-e23e4cfa19c5/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-25 20:23:36,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:23:36,675 INFO L263 TraceCheckSpWp]: Trace formula consists of 1591 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-25 20:23:36,686 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:23:36,952 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 20:23:36,952 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 20:23:36,952 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:23:36,953 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1423561943] [2021-11-25 20:23:36,953 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-25 20:23:36,953 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [880157239] [2021-11-25 20:23:36,954 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [880157239] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:23:36,954 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:23:36,954 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-25 20:23:36,954 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [102684919] [2021-11-25 20:23:36,955 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:23:36,955 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 20:23:36,955 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:23:36,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 20:23:36,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:23:36,957 INFO L87 Difference]: Start difference. First operand 148 states and 196 transitions. Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 2 states have internal predecessors, (30), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:23:38,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:23:38,056 INFO L93 Difference]: Finished difference Result 341 states and 444 transitions. [2021-11-25 20:23:38,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 20:23:38,058 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 2 states have internal predecessors, (30), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2021-11-25 20:23:38,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:23:38,061 INFO L225 Difference]: With dead ends: 341 [2021-11-25 20:23:38,061 INFO L226 Difference]: Without dead ends: 196 [2021-11-25 20:23:38,063 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:23:38,064 INFO L933 BasicCegarLoop]: 189 mSDtfsCounter, 45 mSDsluCounter, 167 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 343 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2021-11-25 20:23:38,065 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [48 Valid, 343 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2021-11-25 20:23:38,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2021-11-25 20:23:38,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 193. [2021-11-25 20:23:38,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 167 states have (on average 1.2275449101796407) internal successors, (205), 183 states have internal predecessors, (205), 21 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (21), 7 states have call predecessors, (21), 21 states have call successors, (21) [2021-11-25 20:23:38,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 247 transitions. [2021-11-25 20:23:38,088 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 247 transitions. Word has length 32 [2021-11-25 20:23:38,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:23:38,088 INFO L470 AbstractCegarLoop]: Abstraction has 193 states and 247 transitions. [2021-11-25 20:23:38,089 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 2 states have internal predecessors, (30), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:23:38,089 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 247 transitions. [2021-11-25 20:23:38,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-11-25 20:23:38,091 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:23:38,091 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:23:38,128 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70675458-a102-484c-8b95-e23e4cfa19c5/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-11-25 20:23:38,318 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70675458-a102-484c-8b95-e23e4cfa19c5/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:23:38,318 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 20:23:38,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:23:38,319 INFO L85 PathProgramCache]: Analyzing trace with hash 308571032, now seen corresponding path program 1 times [2021-11-25 20:23:38,319 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:23:38,319 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2100164445] [2021-11-25 20:23:38,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:23:38,320 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:23:38,430 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-25 20:23:38,431 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [812065375] [2021-11-25 20:23:38,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:23:38,431 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:23:38,431 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70675458-a102-484c-8b95-e23e4cfa19c5/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:23:38,437 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70675458-a102-484c-8b95-e23e4cfa19c5/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 20:23:38,439 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70675458-a102-484c-8b95-e23e4cfa19c5/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-25 20:23:39,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:23:39,396 INFO L263 TraceCheckSpWp]: Trace formula consists of 728 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-25 20:23:39,401 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:23:39,601 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:23:39,601 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 20:23:39,601 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:23:39,602 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2100164445] [2021-11-25 20:23:39,602 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-25 20:23:39,606 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [812065375] [2021-11-25 20:23:39,610 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [812065375] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:23:39,611 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:23:39,611 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 20:23:39,611 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [28905915] [2021-11-25 20:23:39,612 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:23:39,612 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 20:23:39,612 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:23:39,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 20:23:39,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 20:23:39,614 INFO L87 Difference]: Start difference. First operand 193 states and 247 transitions. Second operand has 4 states, 3 states have (on average 13.0) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-25 20:23:42,636 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 20:23:42,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:23:42,640 INFO L93 Difference]: Finished difference Result 372 states and 482 transitions. [2021-11-25 20:23:42,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 20:23:42,666 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 13.0) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 45 [2021-11-25 20:23:42,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:23:42,668 INFO L225 Difference]: With dead ends: 372 [2021-11-25 20:23:42,668 INFO L226 Difference]: Without dead ends: 195 [2021-11-25 20:23:42,669 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 20:23:42,671 INFO L933 BasicCegarLoop]: 174 mSDtfsCounter, 1 mSDsluCounter, 378 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 518 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2021-11-25 20:23:42,672 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 518 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 62 Invalid, 1 Unknown, 0 Unchecked, 3.0s Time] [2021-11-25 20:23:42,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states. [2021-11-25 20:23:42,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 195. [2021-11-25 20:23:42,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 195 states, 168 states have (on average 1.2321428571428572) internal successors, (207), 185 states have internal predecessors, (207), 21 states have call successors, (21), 3 states have call predecessors, (21), 4 states have return successors, (22), 7 states have call predecessors, (22), 21 states have call successors, (22) [2021-11-25 20:23:42,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 250 transitions. [2021-11-25 20:23:42,698 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 250 transitions. Word has length 45 [2021-11-25 20:23:42,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:23:42,699 INFO L470 AbstractCegarLoop]: Abstraction has 195 states and 250 transitions. [2021-11-25 20:23:42,699 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 13.0) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-25 20:23:42,700 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 250 transitions. [2021-11-25 20:23:42,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-11-25 20:23:42,702 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:23:42,702 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:23:42,747 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70675458-a102-484c-8b95-e23e4cfa19c5/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-25 20:23:42,930 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70675458-a102-484c-8b95-e23e4cfa19c5/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:23:42,930 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 20:23:42,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:23:42,931 INFO L85 PathProgramCache]: Analyzing trace with hash -282668078, now seen corresponding path program 1 times [2021-11-25 20:23:42,931 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:23:42,932 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1873621489] [2021-11-25 20:23:42,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:23:42,932 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:23:42,999 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-25 20:23:43,000 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [497210412] [2021-11-25 20:23:43,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:23:43,000 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:23:43,001 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70675458-a102-484c-8b95-e23e4cfa19c5/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:23:43,004 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70675458-a102-484c-8b95-e23e4cfa19c5/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 20:23:43,054 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70675458-a102-484c-8b95-e23e4cfa19c5/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-25 20:23:44,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:23:44,425 INFO L263 TraceCheckSpWp]: Trace formula consists of 758 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-25 20:23:44,431 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:23:44,529 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-25 20:23:44,530 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 20:23:44,724 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-25 20:23:44,725 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:23:44,725 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1873621489] [2021-11-25 20:23:44,725 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-25 20:23:44,725 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [497210412] [2021-11-25 20:23:44,725 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [497210412] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 20:23:44,725 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [767463443] [2021-11-25 20:23:44,750 INFO L159 IcfgInterpreter]: Started Sifa with 43 locations of interest [2021-11-25 20:23:44,750 INFO L166 IcfgInterpreter]: Building call graph [2021-11-25 20:23:44,756 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-25 20:23:44,763 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-25 20:23:44,763 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-25 20:23:44,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:44,957 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2021-11-25 20:23:44,966 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:23:44,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:45,000 INFO L354 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2021-11-25 20:23:45,001 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 20:23:45,021 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:23:45,033 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:45,054 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-25 20:23:45,055 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 20:23:45,122 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:45,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:45,162 INFO L354 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2021-11-25 20:23:45,163 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 20:23:45,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:45,194 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 20:23:45,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:45,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:45,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:45,215 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:45,219 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:45,237 INFO L354 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2021-11-25 20:23:45,238 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 20:23:45,272 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:45,274 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 20:23:45,299 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:45,301 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:45,339 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-11-25 20:23:45,340 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 20:23:45,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:45,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:45,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:45,867 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 20:23:45,891 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:45,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:45,894 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:45,895 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 20:23:45,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:45,949 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:45,950 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:45,951 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:45,952 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:45,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:45,955 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:45,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:45,967 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 20:23:45,987 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:45,989 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:45,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:45,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:45,992 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:45,994 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:45,995 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:45,996 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:45,998 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 20:23:46,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:46,054 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:46,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:46,058 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 20:23:46,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:46,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:46,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:46,089 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 20:23:46,122 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:46,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:46,124 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:46,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:46,127 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:46,128 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:46,129 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:46,130 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:46,131 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:46,132 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:46,133 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:46,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:46,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:46,137 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:46,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:46,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:46,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:46,149 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 23 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 86 [2021-11-25 20:23:46,217 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:46,219 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:46,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:46,231 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:46,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:46,233 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:46,240 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 20:23:46,272 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:46,273 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:46,275 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:46,277 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:46,278 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:46,280 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:46,294 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 20:23:46,316 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:46,322 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:46,324 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:46,397 INFO L354 Elim1Store]: treesize reduction 90, result has 33.8 percent of original size [2021-11-25 20:23:46,397 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 20:23:46,423 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:46,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:46,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:46,428 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 20:23:46,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:46,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:46,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:46,474 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:46,475 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:46,477 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:46,478 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:46,479 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:46,480 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:46,481 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:46,484 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:46,485 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:46,486 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:46,488 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 20:23:46,646 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 20:23:46,651 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 20:23:46,656 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 20:23:46,720 INFO L354 Elim1Store]: treesize reduction 21, result has 34.4 percent of original size [2021-11-25 20:23:46,720 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 20:23:46,761 INFO L354 Elim1Store]: treesize reduction 19, result has 36.7 percent of original size [2021-11-25 20:23:46,761 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 20:23:46,798 INFO L354 Elim1Store]: treesize reduction 19, result has 36.7 percent of original size [2021-11-25 20:23:46,799 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 20:23:46,850 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 20:23:46,857 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2021-11-25 20:23:46,865 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 20:23:46,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:46,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:46,989 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:46,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:46,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:46,992 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:46,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:46,995 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:47,001 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 20:23:47,018 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:47,019 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:47,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:47,021 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:47,022 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:47,023 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:47,024 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 20:23:47,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:47,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:47,052 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:47,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:47,054 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:47,055 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:47,056 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 20:23:47,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:47,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:47,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:47,238 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:47,239 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:47,240 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:47,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:47,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:47,244 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 20:23:47,265 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:47,266 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:47,267 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:47,268 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:47,270 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:47,271 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:47,273 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 20:23:47,293 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:47,294 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:47,295 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:47,296 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:47,298 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:47,299 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:47,300 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 20:23:57,599 WARN L227 SmtUtils]: Spent 10.11s 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 20:23:57,600 INFO L354 Elim1Store]: treesize reduction 348, result has 15.7 percent of original size [2021-11-25 20:23:57,601 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 20:23:57,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:24:11,142 WARN L227 SmtUtils]: Spent 13.36s 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 20:24:11,144 INFO L354 Elim1Store]: treesize reduction 262, result has 32.6 percent of original size [2021-11-25 20:24:11,145 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 20:24:11,404 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:24:11,733 INFO L244 Elim1Store]: Index analysis took 350 ms [2021-11-25 20:24:23,708 WARN L227 SmtUtils]: Spent 11.63s on a formula simplification. DAG size of input: 244 DAG size of output: 142 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-25 20:24:23,710 INFO L354 Elim1Store]: treesize reduction 2566, result has 31.1 percent of original size [2021-11-25 20:24:23,711 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 4 stores, 0 select indices, 0 select index equivalence classes, 8 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 16 case distinctions, treesize of input 1606 treesize of output 1377 [2021-11-25 20:24:24,394 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:24:24,558 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:24:24,565 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:24:24,571 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:24:24,571 INFO L244 Elim1Store]: Index analysis took 277 ms [2021-11-25 20:24:25,723 INFO L354 Elim1Store]: treesize reduction 72, result has 33.9 percent of original size [2021-11-25 20:24:25,724 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 20:24:25,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:24:25,982 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:24:26,004 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:24:26,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:24:26,022 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 20:24:26,515 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:24:26,643 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:24:26,758 INFO L354 Elim1Store]: treesize reduction 32, result has 3.0 percent of original size [2021-11-25 20:24:26,759 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 50 treesize of output 32 [2021-11-25 20:24:26,997 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:24:27,259 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:24:27,260 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 51 treesize of output 61 [2021-11-25 20:24:27,373 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:24:27,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:24:27,400 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 39 [2021-11-25 20:24:27,450 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:24:27,604 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:24:27,791 INFO L354 Elim1Store]: treesize reduction 15, result has 48.3 percent of original size [2021-11-25 20:24:27,794 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 50 treesize of output 46 [2021-11-25 20:24:27,902 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:24:27,912 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:24:27,922 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:24:27,936 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:24:27,936 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 58 treesize of output 42 [2021-11-25 20:24:28,085 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:24:28,101 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:24:28,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:24:28,565 INFO L354 Elim1Store]: treesize reduction 20, result has 53.5 percent of original size [2021-11-25 20:24:28,565 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 67 treesize of output 67 [2021-11-25 20:24:28,658 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:24:28,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:24:28,795 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:24:28,796 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:24:28,798 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 16 [2021-11-25 20:24:30,011 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:24:30,033 INFO L244 Elim1Store]: Index analysis took 208 ms [2021-11-25 20:24:31,418 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:24:31,418 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 9 case distinctions, treesize of input 4034 treesize of output 5426 [2021-11-25 20:24:39,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:24:39,664 INFO L244 Elim1Store]: Index analysis took 208 ms [2021-11-25 20:24:39,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:24:39,855 INFO L354 Elim1Store]: treesize reduction 1832, result has 0.1 percent of original size [2021-11-25 20:24:39,855 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 9 case distinctions, treesize of input 4045 treesize of output 3583 [2021-11-25 20:24:40,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:24:40,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:24:40,174 INFO L244 Elim1Store]: Index analysis took 143 ms [2021-11-25 20:24:40,345 INFO L354 Elim1Store]: treesize reduction 1822, result has 0.1 percent of original size [2021-11-25 20:24:40,345 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 4050 treesize of output 3588 [2021-11-25 20:24:40,450 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:24:40,520 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:24:40,548 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:24:40,549 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:24:40,558 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:24:40,567 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:24:40,581 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:24:40,589 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:24:40,604 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:24:40,605 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 11 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 2156 treesize of output 1706 [2021-11-25 20:24:40,670 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:24:40,757 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:24:40,852 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:24:40,879 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:24:40,881 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:24:40,924 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:24:40,940 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:24:40,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:24:40,985 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:24:41,020 INFO L244 Elim1Store]: Index analysis took 169 ms [2021-11-25 20:24:41,123 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:24:41,124 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 2156 treesize of output 1758 [2021-11-25 20:24:41,238 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:24:41,580 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:24:41,581 INFO L244 Elim1Store]: Index analysis took 190 ms [2021-11-25 20:24:41,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:24:43,492 INFO L354 Elim1Store]: treesize reduction 476, result has 74.2 percent of original size [2021-11-25 20:24:43,492 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 9 case distinctions, treesize of input 2677 treesize of output 3577 [2021-11-25 20:24:43,758 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:24:43,805 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:24:48,005 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:24:48,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:24:48,074 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:24:48,106 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:24:48,106 INFO L244 Elim1Store]: Index analysis took 273 ms [2021-11-25 20:24:52,887 INFO L354 Elim1Store]: treesize reduction 1554, result has 60.0 percent of original size [2021-11-25 20:24:52,888 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 9 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 31 case distinctions, treesize of input 273781 treesize of output 274365 [2021-11-25 20:29:09,454 WARN L227 SmtUtils]: Spent 6.18s on a formula simplification that was a NOOP. DAG size: 1707 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify)