./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/forester-heap/sll-rb-cnstr_1-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 7b2dab56 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_cc296057-68b4-4b1c-863a-ec37e7b55e41/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_cc296057-68b4-4b1c-863a-ec37e7b55e41/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_cc296057-68b4-4b1c-863a-ec37e7b55e41/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_cc296057-68b4-4b1c-863a-ec37e7b55e41/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/forester-heap/sll-rb-cnstr_1-2.i -s /tmp/vcloud-vcloud-master/worker/run_dir_cc296057-68b4-4b1c-863a-ec37e7b55e41/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_cc296057-68b4-4b1c-863a-ec37e7b55e41/bin/utaipan --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 0adf73b7dd596c46d6accaa4759d997d536c99cf ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.0-7b2dab5 [2020-12-09 16:47:09,386 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-09 16:47:09,388 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-09 16:47:09,409 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-09 16:47:09,410 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-09 16:47:09,411 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-09 16:47:09,412 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-09 16:47:09,414 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-09 16:47:09,415 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-09 16:47:09,416 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-09 16:47:09,417 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-09 16:47:09,418 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-09 16:47:09,419 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-09 16:47:09,419 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-09 16:47:09,420 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-09 16:47:09,421 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-09 16:47:09,422 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-09 16:47:09,423 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-09 16:47:09,425 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-09 16:47:09,426 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-09 16:47:09,428 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-09 16:47:09,429 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-09 16:47:09,431 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-09 16:47:09,432 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-09 16:47:09,435 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-09 16:47:09,435 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-09 16:47:09,436 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-09 16:47:09,437 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-09 16:47:09,437 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-09 16:47:09,439 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-09 16:47:09,439 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-09 16:47:09,440 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-09 16:47:09,441 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-09 16:47:09,442 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-09 16:47:09,443 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-09 16:47:09,443 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-09 16:47:09,443 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-09 16:47:09,444 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-09 16:47:09,444 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-09 16:47:09,445 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-09 16:47:09,446 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-09 16:47:09,446 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_cc296057-68b4-4b1c-863a-ec37e7b55e41/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-12-09 16:47:09,467 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-09 16:47:09,467 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-09 16:47:09,467 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-09 16:47:09,468 INFO L138 SettingsManager]: * User list type=DISABLED [2020-12-09 16:47:09,468 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-12-09 16:47:09,468 INFO L138 SettingsManager]: * Explicit value domain=true [2020-12-09 16:47:09,468 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-12-09 16:47:09,468 INFO L138 SettingsManager]: * Octagon Domain=false [2020-12-09 16:47:09,468 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-12-09 16:47:09,469 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-12-09 16:47:09,469 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-12-09 16:47:09,469 INFO L138 SettingsManager]: * Interval Domain=false [2020-12-09 16:47:09,469 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-12-09 16:47:09,469 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-12-09 16:47:09,469 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-12-09 16:47:09,470 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-09 16:47:09,470 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-09 16:47:09,470 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-09 16:47:09,470 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-09 16:47:09,470 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-09 16:47:09,470 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-09 16:47:09,471 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-09 16:47:09,471 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-09 16:47:09,471 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-12-09 16:47:09,471 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-09 16:47:09,471 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-09 16:47:09,471 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-09 16:47:09,471 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-09 16:47:09,472 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-09 16:47:09,472 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-09 16:47:09,472 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 16:47:09,472 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-09 16:47:09,472 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-09 16:47:09,472 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-09 16:47:09,472 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-12-09 16:47:09,473 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-09 16:47:09,473 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-09 16:47:09,473 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-09 16:47:09,473 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-09 16:47:09,473 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-vcloud-master/worker/run_dir_cc296057-68b4-4b1c-863a-ec37e7b55e41/bin/utaipan/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_cc296057-68b4-4b1c-863a-ec37e7b55e41/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0adf73b7dd596c46d6accaa4759d997d536c99cf [2020-12-09 16:47:09,642 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-09 16:47:09,660 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-09 16:47:09,662 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-09 16:47:09,663 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-09 16:47:09,663 INFO L275 PluginConnector]: CDTParser initialized [2020-12-09 16:47:09,664 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_cc296057-68b4-4b1c-863a-ec37e7b55e41/bin/utaipan/../../sv-benchmarks/c/forester-heap/sll-rb-cnstr_1-2.i [2020-12-09 16:47:09,711 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_cc296057-68b4-4b1c-863a-ec37e7b55e41/bin/utaipan/data/932a72146/c33c668471084ee9913da9a1d5ce7a78/FLAG833b29f55 [2020-12-09 16:47:10,112 INFO L306 CDTParser]: Found 1 translation units. [2020-12-09 16:47:10,112 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_cc296057-68b4-4b1c-863a-ec37e7b55e41/sv-benchmarks/c/forester-heap/sll-rb-cnstr_1-2.i [2020-12-09 16:47:10,122 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_cc296057-68b4-4b1c-863a-ec37e7b55e41/bin/utaipan/data/932a72146/c33c668471084ee9913da9a1d5ce7a78/FLAG833b29f55 [2020-12-09 16:47:10,132 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_cc296057-68b4-4b1c-863a-ec37e7b55e41/bin/utaipan/data/932a72146/c33c668471084ee9913da9a1d5ce7a78 [2020-12-09 16:47:10,134 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-09 16:47:10,135 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-09 16:47:10,136 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-09 16:47:10,136 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-09 16:47:10,139 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-09 16:47:10,139 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 04:47:10" (1/1) ... [2020-12-09 16:47:10,141 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1fa76a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:47:10, skipping insertion in model container [2020-12-09 16:47:10,141 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 04:47:10" (1/1) ... [2020-12-09 16:47:10,146 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-09 16:47:10,176 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-09 16:47:10,362 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_cc296057-68b4-4b1c-863a-ec37e7b55e41/sv-benchmarks/c/forester-heap/sll-rb-cnstr_1-2.i[22480,22493] [2020-12-09 16:47:10,365 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_cc296057-68b4-4b1c-863a-ec37e7b55e41/sv-benchmarks/c/forester-heap/sll-rb-cnstr_1-2.i[22552,22565] [2020-12-09 16:47:10,366 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_cc296057-68b4-4b1c-863a-ec37e7b55e41/sv-benchmarks/c/forester-heap/sll-rb-cnstr_1-2.i[22720,22733] [2020-12-09 16:47:10,369 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 16:47:10,375 INFO L203 MainTranslator]: Completed pre-run [2020-12-09 16:47:10,402 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_cc296057-68b4-4b1c-863a-ec37e7b55e41/sv-benchmarks/c/forester-heap/sll-rb-cnstr_1-2.i[22480,22493] [2020-12-09 16:47:10,403 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_cc296057-68b4-4b1c-863a-ec37e7b55e41/sv-benchmarks/c/forester-heap/sll-rb-cnstr_1-2.i[22552,22565] [2020-12-09 16:47:10,405 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_cc296057-68b4-4b1c-863a-ec37e7b55e41/sv-benchmarks/c/forester-heap/sll-rb-cnstr_1-2.i[22720,22733] [2020-12-09 16:47:10,408 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 16:47:10,453 INFO L208 MainTranslator]: Completed translation [2020-12-09 16:47:10,453 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:47:10 WrapperNode [2020-12-09 16:47:10,453 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-09 16:47:10,454 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-09 16:47:10,454 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-09 16:47:10,454 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-09 16:47:10,460 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:47:10" (1/1) ... [2020-12-09 16:47:10,469 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:47:10" (1/1) ... [2020-12-09 16:47:10,485 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-09 16:47:10,485 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-09 16:47:10,486 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-09 16:47:10,486 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-09 16:47:10,492 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:47:10" (1/1) ... [2020-12-09 16:47:10,492 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:47:10" (1/1) ... [2020-12-09 16:47:10,495 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:47:10" (1/1) ... [2020-12-09 16:47:10,495 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:47:10" (1/1) ... [2020-12-09 16:47:10,501 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:47:10" (1/1) ... [2020-12-09 16:47:10,504 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:47:10" (1/1) ... [2020-12-09 16:47:10,506 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:47:10" (1/1) ... [2020-12-09 16:47:10,508 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-09 16:47:10,508 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-09 16:47:10,509 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-09 16:47:10,509 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-09 16:47:10,509 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:47:10" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_cc296057-68b4-4b1c-863a-ec37e7b55e41/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 16:47:10,569 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-09 16:47:10,569 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-09 16:47:10,569 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-12-09 16:47:10,569 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-12-09 16:47:10,570 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-09 16:47:10,570 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-12-09 16:47:10,570 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-09 16:47:10,570 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-09 16:47:10,570 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-09 16:47:10,570 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-09 16:47:10,967 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-09 16:47:10,967 INFO L299 CfgBuilder]: Removed 13 assume(true) statements. [2020-12-09 16:47:10,969 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 04:47:10 BoogieIcfgContainer [2020-12-09 16:47:10,969 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-09 16:47:10,970 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-09 16:47:10,970 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-09 16:47:10,972 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-09 16:47:10,973 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 04:47:10" (1/3) ... [2020-12-09 16:47:10,973 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3885eb47 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 04:47:10, skipping insertion in model container [2020-12-09 16:47:10,973 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:47:10" (2/3) ... [2020-12-09 16:47:10,974 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3885eb47 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 04:47:10, skipping insertion in model container [2020-12-09 16:47:10,974 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 04:47:10" (3/3) ... [2020-12-09 16:47:10,975 INFO L111 eAbstractionObserver]: Analyzing ICFG sll-rb-cnstr_1-2.i [2020-12-09 16:47:10,984 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-09 16:47:10,987 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-12-09 16:47:10,994 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-12-09 16:47:11,010 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-09 16:47:11,010 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-09 16:47:11,010 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-09 16:47:11,010 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-09 16:47:11,010 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-09 16:47:11,010 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-09 16:47:11,010 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-09 16:47:11,011 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-09 16:47:11,023 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states. [2020-12-09 16:47:11,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-12-09 16:47:11,026 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 16:47:11,027 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-12-09 16:47:11,027 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 16:47:11,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 16:47:11,032 INFO L82 PathProgramCache]: Analyzing trace with hash 136375446, now seen corresponding path program 1 times [2020-12-09 16:47:11,038 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 16:47:11,038 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1003377814] [2020-12-09 16:47:11,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 16:47:11,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 16:47:11,136 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 16:47:11,136 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1003377814] [2020-12-09 16:47:11,137 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 16:47:11,137 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-09 16:47:11,137 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1548625543] [2020-12-09 16:47:11,140 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-09 16:47:11,140 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 16:47:11,149 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-09 16:47:11,149 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-09 16:47:11,151 INFO L87 Difference]: Start difference. First operand 22 states. Second operand 2 states. [2020-12-09 16:47:11,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 16:47:11,161 INFO L93 Difference]: Finished difference Result 41 states and 63 transitions. [2020-12-09 16:47:11,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-09 16:47:11,162 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 5 [2020-12-09 16:47:11,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 16:47:11,167 INFO L225 Difference]: With dead ends: 41 [2020-12-09 16:47:11,168 INFO L226 Difference]: Without dead ends: 20 [2020-12-09 16:47:11,169 INFO L677 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 [2020-12-09 16:47:11,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2020-12-09 16:47:11,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2020-12-09 16:47:11,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2020-12-09 16:47:11,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 21 transitions. [2020-12-09 16:47:11,191 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 21 transitions. Word has length 5 [2020-12-09 16:47:11,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 16:47:11,191 INFO L481 AbstractCegarLoop]: Abstraction has 20 states and 21 transitions. [2020-12-09 16:47:11,191 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-09 16:47:11,191 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 21 transitions. [2020-12-09 16:47:11,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-12-09 16:47:11,191 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 16:47:11,191 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-12-09 16:47:11,192 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-09 16:47:11,192 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 16:47:11,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 16:47:11,192 INFO L82 PathProgramCache]: Analyzing trace with hash -79697503, now seen corresponding path program 1 times [2020-12-09 16:47:11,193 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 16:47:11,193 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [362459176] [2020-12-09 16:47:11,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 16:47:11,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 16:47:11,238 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 16:47:11,239 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [362459176] [2020-12-09 16:47:11,239 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 16:47:11,239 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-09 16:47:11,239 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1157743726] [2020-12-09 16:47:11,240 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-09 16:47:11,240 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 16:47:11,240 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-09 16:47:11,241 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-09 16:47:11,241 INFO L87 Difference]: Start difference. First operand 20 states and 21 transitions. Second operand 4 states. [2020-12-09 16:47:11,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 16:47:11,285 INFO L93 Difference]: Finished difference Result 21 states and 22 transitions. [2020-12-09 16:47:11,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-09 16:47:11,285 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 6 [2020-12-09 16:47:11,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 16:47:11,286 INFO L225 Difference]: With dead ends: 21 [2020-12-09 16:47:11,286 INFO L226 Difference]: Without dead ends: 19 [2020-12-09 16:47:11,286 INFO L677 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 [2020-12-09 16:47:11,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2020-12-09 16:47:11,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 18. [2020-12-09 16:47:11,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2020-12-09 16:47:11,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 19 transitions. [2020-12-09 16:47:11,289 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 19 transitions. Word has length 6 [2020-12-09 16:47:11,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 16:47:11,289 INFO L481 AbstractCegarLoop]: Abstraction has 18 states and 19 transitions. [2020-12-09 16:47:11,289 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-09 16:47:11,289 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 19 transitions. [2020-12-09 16:47:11,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-09 16:47:11,290 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 16:47:11,290 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 16:47:11,290 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-09 16:47:11,290 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 16:47:11,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 16:47:11,290 INFO L82 PathProgramCache]: Analyzing trace with hash 852548232, now seen corresponding path program 1 times [2020-12-09 16:47:11,290 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 16:47:11,291 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [295051565] [2020-12-09 16:47:11,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 16:47:11,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 16:47:11,350 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 16:47:11,350 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [295051565] [2020-12-09 16:47:11,350 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 16:47:11,351 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-09 16:47:11,351 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [943756125] [2020-12-09 16:47:11,351 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-09 16:47:11,351 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 16:47:11,351 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-09 16:47:11,352 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-09 16:47:11,352 INFO L87 Difference]: Start difference. First operand 18 states and 19 transitions. Second operand 5 states. [2020-12-09 16:47:11,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 16:47:11,504 INFO L93 Difference]: Finished difference Result 42 states and 44 transitions. [2020-12-09 16:47:11,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-09 16:47:11,504 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2020-12-09 16:47:11,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 16:47:11,505 INFO L225 Difference]: With dead ends: 42 [2020-12-09 16:47:11,505 INFO L226 Difference]: Without dead ends: 40 [2020-12-09 16:47:11,505 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-12-09 16:47:11,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2020-12-09 16:47:11,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 25. [2020-12-09 16:47:11,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2020-12-09 16:47:11,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 27 transitions. [2020-12-09 16:47:11,509 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 27 transitions. Word has length 9 [2020-12-09 16:47:11,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 16:47:11,510 INFO L481 AbstractCegarLoop]: Abstraction has 25 states and 27 transitions. [2020-12-09 16:47:11,510 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-09 16:47:11,510 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 27 transitions. [2020-12-09 16:47:11,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-12-09 16:47:11,510 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 16:47:11,510 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 16:47:11,510 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-09 16:47:11,510 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 16:47:11,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 16:47:11,511 INFO L82 PathProgramCache]: Analyzing trace with hash 234855965, now seen corresponding path program 1 times [2020-12-09 16:47:11,511 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 16:47:11,511 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [317450809] [2020-12-09 16:47:11,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 16:47:11,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 16:47:11,675 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 16:47:11,675 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [317450809] [2020-12-09 16:47:11,675 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [423495945] [2020-12-09 16:47:11,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_cc296057-68b4-4b1c-863a-ec37e7b55e41/bin/utaipan/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-09 16:47:11,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 16:47:11,720 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 18 conjunts are in the unsatisfiable core [2020-12-09 16:47:11,725 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 16:47:11,809 INFO L348 Elim1Store]: treesize reduction 73, result has 33.0 percent of original size [2020-12-09 16:47:11,809 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 3 case distinctions, treesize of input 15 treesize of output 41 [2020-12-09 16:47:11,813 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 16:47:11,854 INFO L625 ElimStorePlain]: treesize reduction 10, result has 83.3 percent of original size [2020-12-09 16:47:11,859 INFO L382 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 [2020-12-09 16:47:11,860 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-09 16:47:11,875 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 16:47:11,883 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 2 disjuncts [2020-12-09 16:47:11,886 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 2 disjuncts [2020-12-09 16:47:11,888 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2020-12-09 16:47:11,890 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-12-09 16:47:11,890 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:35, output treesize:46 [2020-12-09 16:47:11,892 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 2 disjuncts [2020-12-09 16:47:11,894 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 2 disjuncts [2020-12-09 16:47:11,895 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2020-12-09 16:47:11,922 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 2 disjuncts [2020-12-09 16:47:11,923 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 2 disjuncts [2020-12-09 16:47:11,925 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2020-12-09 16:47:12,019 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 2 disjuncts [2020-12-09 16:47:12,021 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 2 disjuncts [2020-12-09 16:47:12,024 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 16:47:12,048 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 16:47:12,066 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 16:47:12,085 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 16:47:12,114 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 2 disjuncts [2020-12-09 16:47:12,115 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 2 disjuncts [2020-12-09 16:47:12,116 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 6 disjuncts [2020-12-09 16:47:12,117 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-09 16:47:12,134 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-09 16:47:12,149 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-09 16:47:12,164 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-09 16:47:12,182 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 2 disjuncts [2020-12-09 16:47:12,183 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 2 disjuncts [2020-12-09 16:47:12,185 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 16:47:12,198 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 16:47:12,210 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 16:47:12,225 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 16:47:12,242 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 2 disjuncts [2020-12-09 16:47:12,243 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 2 disjuncts [2020-12-09 16:47:12,244 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 6 disjuncts [2020-12-09 16:47:12,245 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-09 16:47:12,258 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-09 16:47:12,272 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-09 16:47:12,284 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-09 16:47:12,299 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 10 disjuncts [2020-12-09 16:47:12,302 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 16:47:12,314 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 16:47:12,325 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 16:47:12,337 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 16:47:12,357 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-09 16:47:12,369 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2020-12-09 16:47:12,398 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 16:47:12,410 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 16:47:12,420 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 16:47:12,431 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 16:47:12,446 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-09 16:47:12,457 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2020-12-09 16:47:12,493 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 16:47:12,507 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 16:47:12,519 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 16:47:12,530 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 16:47:12,544 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-09 16:47:12,554 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2020-12-09 16:47:12,577 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 16:47:12,587 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 16:47:12,597 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 16:47:12,611 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 16:47:12,625 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-09 16:47:12,635 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 10 disjuncts [2020-12-09 16:47:13,546 INFO L244 Elim1Store]: Index analysis took 782 ms [2020-12-09 16:47:13,582 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 16:47:13,583 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 26 treesize of output 96 [2020-12-09 16:47:13,586 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-09 16:47:13,586 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 16:47:13,586 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 16:47:13,588 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 16:47:13,591 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 16:47:14,163 INFO L244 Elim1Store]: Index analysis took 473 ms [2020-12-09 16:47:14,180 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 16:47:14,181 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 21 treesize of output 61 [2020-12-09 16:47:14,182 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 16:47:14,183 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 16:47:14,183 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 16:47:14,185 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-09 16:47:15,848 INFO L244 Elim1Store]: Index analysis took 1505 ms [2020-12-09 16:47:15,874 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 16:47:15,874 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 9 case distinctions, treesize of input 30 treesize of output 92 [2020-12-09 16:47:15,878 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 16:47:15,878 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 16:47:15,879 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 16:47:15,881 INFO L547 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2020-12-09 16:47:16,618 INFO L244 Elim1Store]: Index analysis took 562 ms [2020-12-09 16:47:16,635 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 16:47:16,635 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 21 treesize of output 61 [2020-12-09 16:47:16,636 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 16:47:16,637 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 16:47:16,638 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 16:47:16,639 INFO L547 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2020-12-09 16:47:17,401 INFO L244 Elim1Store]: Index analysis took 694 ms [2020-12-09 16:47:17,418 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 16:47:17,418 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 21 treesize of output 61 [2020-12-09 16:47:17,420 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 16:47:17,420 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 16:47:17,421 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 16:47:17,422 INFO L547 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2020-12-09 16:47:18,386 INFO L244 Elim1Store]: Index analysis took 863 ms [2020-12-09 16:47:18,413 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 16:47:18,413 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 9 case distinctions, treesize of input 30 treesize of output 92 [2020-12-09 16:47:18,415 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 16:47:18,416 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 16:47:18,417 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 16:47:18,418 INFO L547 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2020-12-09 16:47:19,419 INFO L244 Elim1Store]: Index analysis took 883 ms [2020-12-09 16:47:19,446 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 16:47:19,447 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 9 case distinctions, treesize of input 30 treesize of output 92 [2020-12-09 16:47:19,449 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 16:47:19,449 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 16:47:19,450 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 16:47:19,451 INFO L547 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2020-12-09 16:47:20,638 INFO L244 Elim1Store]: Index analysis took 1060 ms [2020-12-09 16:47:20,682 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 16:47:20,682 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 1 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 14 case distinctions, treesize of input 35 treesize of output 135 [2020-12-09 16:47:20,685 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-09 16:47:20,685 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 16:47:20,686 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 16:47:20,686 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 16:47:20,689 INFO L547 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2020-12-09 16:47:27,788 WARN L197 SmtUtils]: Spent 7.10 s on a formula simplification. DAG size of input: 154 DAG size of output: 147 [2020-12-09 16:47:27,789 INFO L625 ElimStorePlain]: treesize reduction 579, result has 65.0 percent of original size [2020-12-09 16:47:27,796 INFO L443 ElimStorePlain]: Different costs {0=[v_prenex_4, v_prenex_1, v_prenex_2, v_prenex_3, |v_#memory_$Pointer$.base_39|, |#memory_$Pointer$.base|, |v_#memory_$Pointer$.offset_39|, |#memory_$Pointer$.offset|, |v_#memory_int_50|], 2=[|v_#memory_int_51|, |v_#memory_int_52|, |v_#memory_int_53|], 4=[|v_#memory_int_49|], 6=[|v_#memory_$Pointer$.base_38|, |v_#memory_$Pointer$.offset_38|]} [2020-12-09 16:47:27,827 INFO L547 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2020-12-09 16:47:27,842 INFO L547 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2020-12-09 16:47:30,158 WARN L197 SmtUtils]: Spent 2.32 s on a formula simplification that was a NOOP. DAG size: 135 [2020-12-09 16:47:30,159 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 16:47:30,194 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-09 16:47:30,460 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 15 [2020-12-09 16:47:30,461 INFO L547 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2020-12-09 16:47:30,511 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-09 16:47:30,679 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 15 [2020-12-09 16:47:30,680 INFO L547 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2020-12-09 16:47:32,573 WARN L197 SmtUtils]: Spent 1.89 s on a formula simplification that was a NOOP. DAG size: 130 [2020-12-09 16:47:32,573 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 16:47:32,629 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2020-12-09 16:47:32,631 INFO L547 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts. [2020-12-09 16:47:32,660 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 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 15 treesize of output 7 [2020-12-09 16:47:32,662 INFO L547 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts. [2020-12-09 16:47:34,344 WARN L197 SmtUtils]: Spent 1.68 s on a formula simplification that was a NOOP. DAG size: 123 [2020-12-09 16:47:34,345 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 16:47:34,345 INFO L515 ElimStorePlain]: Eliminatee v_prenex_3 vanished before elimination [2020-12-09 16:47:34,373 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-09 16:47:34,471 INFO L382 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 38 treesize of output 15 [2020-12-09 16:47:34,472 INFO L547 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 1 xjuncts. [2020-12-09 16:47:34,501 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-09 16:47:34,738 INFO L382 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 38 treesize of output 15 [2020-12-09 16:47:34,740 INFO L547 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 1 xjuncts. [2020-12-09 16:47:34,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-09 16:47:34,865 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 15 [2020-12-09 16:47:34,866 INFO L547 ElimStorePlain]: Start of recursive call 18: End of recursive call: and 1 xjuncts. [2020-12-09 16:47:36,290 WARN L197 SmtUtils]: Spent 1.42 s on a formula simplification that was a NOOP. DAG size: 118 [2020-12-09 16:47:36,290 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 16:47:36,303 INFO L547 ElimStorePlain]: Start of recursive call 19: End of recursive call: and 1 xjuncts. [2020-12-09 16:47:36,312 INFO L547 ElimStorePlain]: Start of recursive call 20: End of recursive call: and 1 xjuncts. [2020-12-09 16:47:36,329 INFO L547 ElimStorePlain]: Start of recursive call 21: End of recursive call: and 1 xjuncts. [2020-12-09 16:47:37,178 WARN L197 SmtUtils]: Spent 848.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2020-12-09 16:47:37,178 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 16:47:37,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-09 16:47:37,274 INFO L382 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 38 treesize of output 15 [2020-12-09 16:47:37,275 INFO L547 ElimStorePlain]: Start of recursive call 22: End of recursive call: and 1 xjuncts. [2020-12-09 16:47:37,311 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-09 16:47:37,469 INFO L382 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 38 treesize of output 15 [2020-12-09 16:47:37,470 INFO L547 ElimStorePlain]: Start of recursive call 23: End of recursive call: and 1 xjuncts. [2020-12-09 16:47:37,491 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-09 16:47:37,545 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 15 [2020-12-09 16:47:37,546 INFO L547 ElimStorePlain]: Start of recursive call 24: End of recursive call: and 1 xjuncts. [2020-12-09 16:47:38,830 WARN L197 SmtUtils]: Spent 1.28 s on a formula simplification that was a NOOP. DAG size: 103 [2020-12-09 16:47:38,830 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 16:47:38,840 INFO L547 ElimStorePlain]: Start of recursive call 25: End of recursive call: and 1 xjuncts. [2020-12-09 16:47:38,849 INFO L547 ElimStorePlain]: Start of recursive call 26: End of recursive call: and 1 xjuncts. [2020-12-09 16:47:38,855 INFO L547 ElimStorePlain]: Start of recursive call 27: End of recursive call: and 1 xjuncts. [2020-12-09 16:47:39,387 WARN L197 SmtUtils]: Spent 532.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-12-09 16:47:39,388 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 16:47:39,394 INFO L547 ElimStorePlain]: Start of recursive call 28: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-09 16:47:39,401 INFO L547 ElimStorePlain]: Start of recursive call 29: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-09 16:47:39,408 INFO L547 ElimStorePlain]: Start of recursive call 30: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-09 16:47:39,972 WARN L197 SmtUtils]: Spent 563.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2020-12-09 16:47:39,972 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 16:47:39,979 INFO L547 ElimStorePlain]: Start of recursive call 31: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-09 16:47:39,987 INFO L547 ElimStorePlain]: Start of recursive call 32: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-09 16:47:39,995 INFO L547 ElimStorePlain]: Start of recursive call 33: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-09 16:47:40,929 WARN L197 SmtUtils]: Spent 933.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2020-12-09 16:47:40,930 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 16:47:40,942 INFO L547 ElimStorePlain]: Start of recursive call 34: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-09 16:47:40,954 INFO L547 ElimStorePlain]: Start of recursive call 35: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-09 16:47:40,978 INFO L547 ElimStorePlain]: Start of recursive call 36: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-09 16:47:40,998 INFO L547 ElimStorePlain]: Start of recursive call 37: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-09 16:47:41,010 INFO L547 ElimStorePlain]: Start of recursive call 38: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-09 16:47:43,236 WARN L197 SmtUtils]: Spent 2.23 s on a formula simplification that was a NOOP. DAG size: 129 [2020-12-09 16:47:43,237 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 16:47:43,267 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-09 16:47:43,305 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 20 [2020-12-09 16:47:43,306 INFO L547 ElimStorePlain]: Start of recursive call 39: End of recursive call: and 1 xjuncts. [2020-12-09 16:47:43,329 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-09 16:47:43,368 INFO L382 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 41 treesize of output 20 [2020-12-09 16:47:43,369 INFO L547 ElimStorePlain]: Start of recursive call 40: End of recursive call: and 1 xjuncts. [2020-12-09 16:47:43,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-09 16:47:43,436 INFO L382 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 41 treesize of output 20 [2020-12-09 16:47:43,437 INFO L547 ElimStorePlain]: Start of recursive call 41: End of recursive call: and 1 xjuncts. [2020-12-09 16:47:43,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-09 16:47:43,511 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 20 [2020-12-09 16:47:43,512 INFO L547 ElimStorePlain]: Start of recursive call 42: End of recursive call: and 1 xjuncts. [2020-12-09 16:47:43,527 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-09 16:47:43,540 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 20 [2020-12-09 16:47:43,541 INFO L547 ElimStorePlain]: Start of recursive call 43: End of recursive call: and 1 xjuncts. [2020-12-09 16:47:44,012 WARN L197 SmtUtils]: Spent 470.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-12-09 16:47:44,013 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 16:47:44,032 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-09 16:47:44,071 INFO L382 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 30 treesize of output 32 [2020-12-09 16:47:44,072 INFO L547 ElimStorePlain]: Start of recursive call 44: End of recursive call: and 1 xjuncts. [2020-12-09 16:47:44,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-09 16:47:44,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-09 16:47:44,105 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-09 16:47:44,132 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 11 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 53 [2020-12-09 16:47:44,134 INFO L547 ElimStorePlain]: Start of recursive call 45: End of recursive call: and 1 xjuncts. [2020-12-09 16:47:44,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-09 16:47:44,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-09 16:47:44,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-09 16:47:44,166 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 11 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 53 [2020-12-09 16:47:44,167 INFO L547 ElimStorePlain]: Start of recursive call 46: End of recursive call: and 1 xjuncts. [2020-12-09 16:47:44,174 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-09 16:47:44,175 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-09 16:47:44,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-09 16:47:44,187 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 11 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 53 [2020-12-09 16:47:44,188 INFO L547 ElimStorePlain]: Start of recursive call 47: End of recursive call: and 1 xjuncts. [2020-12-09 16:47:44,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-09 16:47:44,198 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2020-12-09 16:47:44,199 INFO L547 ElimStorePlain]: Start of recursive call 48: End of recursive call: and 1 xjuncts. [2020-12-09 16:47:44,326 WARN L197 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-12-09 16:47:44,326 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 16:47:44,334 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2020-12-09 16:47:44,335 INFO L547 ElimStorePlain]: Start of recursive call 49: End of recursive call: and 1 xjuncts. [2020-12-09 16:47:44,342 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2020-12-09 16:47:44,344 INFO L547 ElimStorePlain]: Start of recursive call 50: End of recursive call: and 1 xjuncts. [2020-12-09 16:47:44,349 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2020-12-09 16:47:44,350 INFO L547 ElimStorePlain]: Start of recursive call 51: End of recursive call: and 1 xjuncts. [2020-12-09 16:47:44,466 WARN L197 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2020-12-09 16:47:44,467 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 16:47:44,473 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2020-12-09 16:47:44,475 INFO L547 ElimStorePlain]: Start of recursive call 52: End of recursive call: and 1 xjuncts. [2020-12-09 16:47:44,481 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2020-12-09 16:47:44,483 INFO L547 ElimStorePlain]: Start of recursive call 53: End of recursive call: and 1 xjuncts. [2020-12-09 16:47:44,488 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2020-12-09 16:47:44,489 INFO L547 ElimStorePlain]: Start of recursive call 54: End of recursive call: and 1 xjuncts. [2020-12-09 16:47:44,583 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 16:47:44,597 INFO L547 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 1 dim-1 vars, 15 dim-2 vars, End of recursive call: 10 dim-0 vars, and 4 xjuncts. [2020-12-09 16:47:44,597 INFO L244 ElimStorePlain]: Needed 54 recursive calls to eliminate 22 variables, input treesize:1685, output treesize:139 [2020-12-09 16:47:45,939 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 10 [2020-12-09 16:47:45,940 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 16:47:45,944 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 16:47:45,946 INFO L547 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-09 16:47:45,946 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:32, output treesize:3 [2020-12-09 16:47:45,949 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 16:47:45,949 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 16:47:45,987 INFO L639 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-12-09 16:47:46,002 INFO L639 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-12-09 16:47:46,018 INFO L639 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-12-09 16:47:46,037 INFO L639 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-12-09 16:47:46,057 INFO L639 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-12-09 16:47:46,070 INFO L639 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-12-09 16:47:46,082 INFO L639 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-12-09 16:47:46,095 INFO L639 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-12-09 16:47:46,115 INFO L443 ElimStorePlain]: Different costs {0=[|v_#memory_$Pointer$.offset_40|, v_prenex_15, v_prenex_14, v_prenex_13, |v_#memory_$Pointer$.base_40|, v_prenex_12, |#memory_$Pointer$.base|, |#memory_$Pointer$.offset|], 2=[|v_#memory_int_51|, |v_#memory_int_52|], 3=[|v_#memory_int_50|], 6=[|v_#memory_$Pointer$.base_38|, |v_#memory_$Pointer$.offset_38|], 11=[|v_#memory_int_49|]} [2020-12-09 16:47:46,137 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 16:47:46,616 WARN L197 SmtUtils]: Spent 477.00 ms on a formula simplification that was a NOOP. DAG size: 131 [2020-12-09 16:47:46,616 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 16:47:46,653 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-09 16:47:46,717 INFO L348 Elim1Store]: treesize reduction 49, result has 43.7 percent of original size [2020-12-09 16:47:46,717 INFO L382 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 2 case distinctions, treesize of input 39 treesize of output 38 [2020-12-09 16:47:46,718 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-09 16:47:47,325 WARN L197 SmtUtils]: Spent 606.00 ms on a formula simplification that was a NOOP. DAG size: 136 [2020-12-09 16:47:47,326 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 16:47:47,352 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-09 16:47:47,404 INFO L348 Elim1Store]: treesize reduction 49, result has 43.7 percent of original size [2020-12-09 16:47:47,404 INFO L382 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 2 case distinctions, treesize of input 39 treesize of output 38 [2020-12-09 16:47:47,405 INFO L547 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2020-12-09 16:47:47,816 WARN L197 SmtUtils]: Spent 410.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2020-12-09 16:47:47,816 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 16:47:47,864 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 16:47:47,865 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 38 treesize of output 41 [2020-12-09 16:47:47,867 INFO L398 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 3, 2, 1] term [2020-12-09 16:47:47,868 INFO L639 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-12-09 16:47:47,869 INFO L547 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2020-12-09 16:47:48,180 WARN L197 SmtUtils]: Spent 310.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-12-09 16:47:48,181 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 16:47:48,188 INFO L547 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2020-12-09 16:47:48,439 WARN L197 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2020-12-09 16:47:48,439 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 16:47:48,465 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 16:47:48,465 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 38 treesize of output 41 [2020-12-09 16:47:48,466 INFO L398 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 3, 2, 1] term [2020-12-09 16:47:48,466 INFO L639 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-12-09 16:47:48,467 INFO L547 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2020-12-09 16:47:48,608 WARN L197 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2020-12-09 16:47:48,608 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 16:47:48,624 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-09 16:47:48,668 INFO L348 Elim1Store]: treesize reduction 49, result has 43.7 percent of original size [2020-12-09 16:47:48,668 INFO L382 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 2 case distinctions, treesize of input 39 treesize of output 38 [2020-12-09 16:47:48,669 INFO L547 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2020-12-09 16:47:48,845 WARN L197 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2020-12-09 16:47:48,845 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 16:47:48,862 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-09 16:47:48,901 INFO L348 Elim1Store]: treesize reduction 49, result has 43.7 percent of original size [2020-12-09 16:47:48,901 INFO L382 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 2 case distinctions, treesize of input 39 treesize of output 38 [2020-12-09 16:47:48,902 INFO L547 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2020-12-09 16:47:49,073 WARN L197 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2020-12-09 16:47:49,073 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 16:47:49,079 INFO L547 ElimStorePlain]: Start of recursive call 10: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-09 16:47:49,239 WARN L197 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2020-12-09 16:47:49,240 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 16:47:49,245 INFO L547 ElimStorePlain]: Start of recursive call 11: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-09 16:47:49,250 INFO L547 ElimStorePlain]: Start of recursive call 12: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-09 16:47:49,451 WARN L197 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2020-12-09 16:47:49,451 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 16:47:49,460 INFO L547 ElimStorePlain]: Start of recursive call 13: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-09 16:47:49,617 WARN L197 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-12-09 16:47:49,618 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 16:47:49,657 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 16:47:49,658 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 38 treesize of output 41 [2020-12-09 16:47:49,658 INFO L398 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 3, 2, 1] term [2020-12-09 16:47:49,659 INFO L639 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-12-09 16:47:49,660 INFO L547 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts. [2020-12-09 16:47:49,802 WARN L197 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2020-12-09 16:47:49,802 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 16:47:49,821 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 16:47:49,821 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 38 treesize of output 41 [2020-12-09 16:47:49,822 INFO L398 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 3, 2, 1] term [2020-12-09 16:47:49,822 INFO L639 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-12-09 16:47:49,823 INFO L547 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts. [2020-12-09 16:47:49,879 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 16:47:49,883 INFO L547 ElimStorePlain]: Start of recursive call 16: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-09 16:47:49,886 INFO L547 ElimStorePlain]: Start of recursive call 17: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-09 16:47:49,928 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 16:47:49,932 INFO L547 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 14 dim-2 vars, End of recursive call: 11 dim-0 vars, and 2 xjuncts. [2020-12-09 16:47:49,932 INFO L244 ElimStorePlain]: Needed 17 recursive calls to eliminate 17 variables, input treesize:388, output treesize:147 [2020-12-09 16:47:51,988 WARN L197 SmtUtils]: Spent 2.02 s on a formula simplification that was a NOOP. DAG size: 63 [2020-12-09 16:47:51,999 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 16:47:51,999 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2144189236] [2020-12-09 16:47:52,012 INFO L159 IcfgInterpreter]: Started Sifa with 10 locations of interest [2020-12-09 16:47:52,013 INFO L166 IcfgInterpreter]: Building call graph [2020-12-09 16:47:52,016 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2020-12-09 16:47:52,019 INFO L176 IcfgInterpreter]: Starting interpretation [2020-12-09 16:47:52,019 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2020-12-09 16:47:58,299 INFO L180 IcfgInterpreter]: Interpretation finished [2020-12-09 16:47:58,653 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-09 16:47:58,653 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2020-12-09 16:47:58,653 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 9 [2020-12-09 16:47:58,654 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1436119954] [2020-12-09 16:47:58,654 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-12-09 16:47:58,654 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 16:47:58,654 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-12-09 16:47:58,655 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=194, Unknown=0, NotChecked=0, Total=240 [2020-12-09 16:47:58,655 INFO L87 Difference]: Start difference. First operand 25 states and 27 transitions. Second operand 10 states. [2020-12-09 16:48:04,164 WARN L197 SmtUtils]: Spent 5.34 s on a formula simplification. DAG size of input: 83 DAG size of output: 79 [2020-12-09 16:48:08,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 16:48:08,435 INFO L93 Difference]: Finished difference Result 79 states and 84 transitions. [2020-12-09 16:48:08,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-12-09 16:48:08,436 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 11 [2020-12-09 16:48:08,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 16:48:08,437 INFO L225 Difference]: With dead ends: 79 [2020-12-09 16:48:08,437 INFO L226 Difference]: Without dead ends: 77 [2020-12-09 16:48:08,437 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 20 SyntacticMatches, 2 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 108 ImplicationChecksByTransitivity, 9.2s TimeCoverageRelationStatistics Valid=101, Invalid=405, Unknown=0, NotChecked=0, Total=506 [2020-12-09 16:48:08,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2020-12-09 16:48:08,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 29. [2020-12-09 16:48:08,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2020-12-09 16:48:08,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 33 transitions. [2020-12-09 16:48:08,441 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 33 transitions. Word has length 11 [2020-12-09 16:48:08,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 16:48:08,442 INFO L481 AbstractCegarLoop]: Abstraction has 29 states and 33 transitions. [2020-12-09 16:48:08,442 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-12-09 16:48:08,442 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 33 transitions. [2020-12-09 16:48:08,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-12-09 16:48:08,442 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 16:48:08,442 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 16:48:08,643 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2020-12-09 16:48:08,644 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 16:48:08,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 16:48:08,645 INFO L82 PathProgramCache]: Analyzing trace with hash 1505627487, now seen corresponding path program 1 times [2020-12-09 16:48:08,646 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 16:48:08,646 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1574991786] [2020-12-09 16:48:08,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 16:48:08,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-09 16:48:08,666 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-09 16:48:08,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-09 16:48:08,673 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-09 16:48:08,686 INFO L173 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2020-12-09 16:48:08,686 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-12-09 16:48:08,686 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2020-12-09 16:48:08,702 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 04:48:08 BoogieIcfgContainer [2020-12-09 16:48:08,702 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-09 16:48:08,703 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-09 16:48:08,703 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-09 16:48:08,703 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-09 16:48:08,703 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 04:47:10" (3/4) ... [2020-12-09 16:48:08,704 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-12-09 16:48:08,727 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_cc296057-68b4-4b1c-863a-ec37e7b55e41/bin/utaipan/witness.graphml [2020-12-09 16:48:08,727 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-09 16:48:08,728 INFO L168 Benchmark]: Toolchain (without parser) took 58593.15 ms. Allocated memory was 111.1 MB in the beginning and 161.5 MB in the end (delta: 50.3 MB). Free memory was 84.9 MB in the beginning and 94.6 MB in the end (delta: -9.7 MB). Peak memory consumption was 42.2 MB. Max. memory is 16.1 GB. [2020-12-09 16:48:08,728 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 71.3 MB. Free memory is still 49.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 16:48:08,728 INFO L168 Benchmark]: CACSL2BoogieTranslator took 317.41 ms. Allocated memory is still 111.1 MB. Free memory was 84.9 MB in the beginning and 62.5 MB in the end (delta: 22.4 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. [2020-12-09 16:48:08,729 INFO L168 Benchmark]: Boogie Procedure Inliner took 31.08 ms. Allocated memory is still 111.1 MB. Free memory was 62.5 MB in the beginning and 60.6 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-09 16:48:08,729 INFO L168 Benchmark]: Boogie Preprocessor took 22.50 ms. Allocated memory is still 111.1 MB. Free memory was 60.6 MB in the beginning and 58.8 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-09 16:48:08,729 INFO L168 Benchmark]: RCFGBuilder took 460.59 ms. Allocated memory is still 111.1 MB. Free memory was 58.8 MB in the beginning and 55.7 MB in the end (delta: 3.1 MB). Peak memory consumption was 6.2 MB. Max. memory is 16.1 GB. [2020-12-09 16:48:08,729 INFO L168 Benchmark]: TraceAbstraction took 57732.40 ms. Allocated memory was 111.1 MB in the beginning and 161.5 MB in the end (delta: 50.3 MB). Free memory was 55.2 MB in the beginning and 96.7 MB in the end (delta: -41.5 MB). Peak memory consumption was 8.8 MB. Max. memory is 16.1 GB. [2020-12-09 16:48:08,730 INFO L168 Benchmark]: Witness Printer took 24.63 ms. Allocated memory is still 161.5 MB. Free memory was 96.7 MB in the beginning and 94.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-09 16:48:08,731 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 71.3 MB. Free memory is still 49.4 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 317.41 ms. Allocated memory is still 111.1 MB. Free memory was 84.9 MB in the beginning and 62.5 MB in the end (delta: 22.4 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 31.08 ms. Allocated memory is still 111.1 MB. Free memory was 62.5 MB in the beginning and 60.6 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 22.50 ms. Allocated memory is still 111.1 MB. Free memory was 60.6 MB in the beginning and 58.8 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 460.59 ms. Allocated memory is still 111.1 MB. Free memory was 58.8 MB in the beginning and 55.7 MB in the end (delta: 3.1 MB). Peak memory consumption was 6.2 MB. Max. memory is 16.1 GB. * TraceAbstraction took 57732.40 ms. Allocated memory was 111.1 MB in the beginning and 161.5 MB in the end (delta: 50.3 MB). Free memory was 55.2 MB in the beginning and 96.7 MB in the end (delta: -41.5 MB). Peak memory consumption was 8.8 MB. Max. memory is 16.1 GB. * Witness Printer took 24.63 ms. Allocated memory is still 161.5 MB. Free memory was 96.7 MB in the beginning and 94.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 1049]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L1006] SLL* list = malloc(sizeof(SLL)); [L1007] list->next = ((void*)0) [L1008] list->colour = BLACK [L1010] SLL* end = list; [L1013] COND FALSE !(__VERIFIER_nondet_int()) [L1034] end = ((void*)0) [L1035] end = list [L1038] COND FALSE !(!(((void*)0) != end)) [L1039] EXPR end->colour [L1039] COND FALSE !(!(BLACK == end->colour)) [L1041] COND TRUE ((void*)0) != end [L1043] EXPR end->colour [L1043] COND FALSE !(RED == end->colour) [L1049] EXPR end->next [L1049] COND TRUE !(end->next) [L1049] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 22 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 57.6s, OverallIterations: 5, TraceHistogramMax: 2, AutomataDifference: 10.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 68 SDtfs, 138 SDslu, 124 SDs, 0 SdLazy, 113 SolverSat, 41 SolverUnsat, 2 SolverUnknown, 0 SolverNotchecked, 4.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 55 GetRequests, 24 SyntacticMatches, 2 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 108 ImplicationChecksByTransitivity, 9.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=29occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 64 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 40.4s InterpolantComputationTime, 55 NumberOfCodeBlocks, 55 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 47 ConstructedInterpolants, 10 QuantifiedInterpolants, 7781 SizeOfPredicates, 30 NumberOfNonLiveVariables, 71 ConjunctsInSsa, 18 ConjunctsInUnsatCore, 6 InterpolantComputations, 3 PerfectInterpolantSequences, 0/6 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...