./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--arcnet--capmode.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6669abe-9aa4-4f3a-8353-445e555e2e5f/bin/utaipan-TEXQjIfE4P/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6669abe-9aa4-4f3a-8353-445e555e2e5f/bin/utaipan-TEXQjIfE4P/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6669abe-9aa4-4f3a-8353-445e555e2e5f/bin/utaipan-TEXQjIfE4P/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6669abe-9aa4-4f3a-8353-445e555e2e5f/bin/utaipan-TEXQjIfE4P/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--arcnet--capmode.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6669abe-9aa4-4f3a-8353-445e555e2e5f/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6669abe-9aa4-4f3a-8353-445e555e2e5f/bin/utaipan-TEXQjIfE4P --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 992626749f2e8ca84a93ad6fc64a197d6c8e66b412d995c24cf1e1136a1f2393 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-20 22:50:19,357 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-20 22:50:19,359 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-20 22:50:19,388 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-20 22:50:19,388 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-20 22:50:19,389 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-20 22:50:19,391 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-20 22:50:19,393 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-20 22:50:19,395 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-20 22:50:19,396 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-20 22:50:19,397 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-20 22:50:19,398 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-20 22:50:19,399 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-20 22:50:19,400 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-20 22:50:19,401 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-20 22:50:19,403 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-20 22:50:19,404 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-20 22:50:19,405 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-20 22:50:19,407 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-20 22:50:19,409 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-20 22:50:19,411 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-20 22:50:19,412 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-20 22:50:19,414 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-20 22:50:19,415 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-20 22:50:19,418 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-20 22:50:19,419 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-20 22:50:19,419 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-20 22:50:19,420 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-20 22:50:19,421 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-20 22:50:19,422 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-20 22:50:19,422 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-20 22:50:19,423 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-20 22:50:19,424 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-20 22:50:19,425 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-20 22:50:19,433 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-20 22:50:19,434 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-20 22:50:19,435 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-20 22:50:19,435 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-20 22:50:19,435 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-20 22:50:19,437 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-20 22:50:19,437 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-20 22:50:19,440 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6669abe-9aa4-4f3a-8353-445e555e2e5f/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-20 22:50:19,490 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-20 22:50:19,490 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-20 22:50:19,491 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-20 22:50:19,491 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-20 22:50:19,495 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-20 22:50:19,495 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-20 22:50:19,495 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-20 22:50:19,496 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-20 22:50:19,496 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-20 22:50:19,496 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-20 22:50:19,496 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-20 22:50:19,496 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-20 22:50:19,497 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-20 22:50:19,497 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-20 22:50:19,497 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-20 22:50:19,497 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-20 22:50:19,497 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-20 22:50:19,497 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-20 22:50:19,498 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-20 22:50:19,498 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-20 22:50:19,499 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-20 22:50:19,499 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-20 22:50:19,499 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-20 22:50:19,499 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-20 22:50:19,499 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-20 22:50:19,499 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-20 22:50:19,500 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-20 22:50:19,500 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-20 22:50:19,500 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-20 22:50:19,500 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 22:50:19,501 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-20 22:50:19,501 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-20 22:50:19,501 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-20 22:50:19,501 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-20 22:50:19,501 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-20 22:50:19,501 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-20 22:50:19,502 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-20 22:50:19,502 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-20 22:50:19,502 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6669abe-9aa4-4f3a-8353-445e555e2e5f/bin/utaipan-TEXQjIfE4P/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6669abe-9aa4-4f3a-8353-445e555e2e5f/bin/utaipan-TEXQjIfE4P Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 992626749f2e8ca84a93ad6fc64a197d6c8e66b412d995c24cf1e1136a1f2393 [2021-11-20 22:50:19,783 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-20 22:50:19,807 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-20 22:50:19,811 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-20 22:50:19,812 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-20 22:50:19,813 INFO L275 PluginConnector]: CDTParser initialized [2021-11-20 22:50:19,814 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6669abe-9aa4-4f3a-8353-445e555e2e5f/bin/utaipan-TEXQjIfE4P/../../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--arcnet--capmode.ko-entry_point.cil.out.i [2021-11-20 22:50:19,899 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6669abe-9aa4-4f3a-8353-445e555e2e5f/bin/utaipan-TEXQjIfE4P/data/9d3473673/980561e2e5c74884950243105e6d4c7f/FLAGec00927b5 [2021-11-20 22:50:20,719 INFO L306 CDTParser]: Found 1 translation units. [2021-11-20 22:50:20,720 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6669abe-9aa4-4f3a-8353-445e555e2e5f/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--arcnet--capmode.ko-entry_point.cil.out.i [2021-11-20 22:50:20,767 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6669abe-9aa4-4f3a-8353-445e555e2e5f/bin/utaipan-TEXQjIfE4P/data/9d3473673/980561e2e5c74884950243105e6d4c7f/FLAGec00927b5 [2021-11-20 22:50:21,240 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6669abe-9aa4-4f3a-8353-445e555e2e5f/bin/utaipan-TEXQjIfE4P/data/9d3473673/980561e2e5c74884950243105e6d4c7f [2021-11-20 22:50:21,243 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-20 22:50:21,244 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-20 22:50:21,245 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-20 22:50:21,245 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-20 22:50:21,251 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-20 22:50:21,252 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:50:21" (1/1) ... [2021-11-20 22:50:21,253 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ef26d6c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:50:21, skipping insertion in model container [2021-11-20 22:50:21,254 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:50:21" (1/1) ... [2021-11-20 22:50:21,261 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-20 22:50:21,350 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-20 22:50:22,018 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6669abe-9aa4-4f3a-8353-445e555e2e5f/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--arcnet--capmode.ko-entry_point.cil.out.i[154031,154044] [2021-11-20 22:50:22,238 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 22:50:22,252 INFO L203 MainTranslator]: Completed pre-run [2021-11-20 22:50:22,425 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6669abe-9aa4-4f3a-8353-445e555e2e5f/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--arcnet--capmode.ko-entry_point.cil.out.i[154031,154044] [2021-11-20 22:50:22,524 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 22:50:22,558 INFO L208 MainTranslator]: Completed translation [2021-11-20 22:50:22,558 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:50:22 WrapperNode [2021-11-20 22:50:22,558 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-20 22:50:22,560 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-20 22:50:22,561 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-20 22:50:22,561 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-20 22:50:22,568 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:50:22" (1/1) ... [2021-11-20 22:50:22,608 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:50:22" (1/1) ... [2021-11-20 22:50:22,668 INFO L137 Inliner]: procedures = 90, calls = 193, calls flagged for inlining = 27, calls inlined = 24, statements flattened = 546 [2021-11-20 22:50:22,673 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-20 22:50:22,674 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-20 22:50:22,674 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-20 22:50:22,674 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-20 22:50:22,734 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:50:22" (1/1) ... [2021-11-20 22:50:22,734 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:50:22" (1/1) ... [2021-11-20 22:50:22,754 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:50:22" (1/1) ... [2021-11-20 22:50:22,782 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:50:22" (1/1) ... [2021-11-20 22:50:22,855 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:50:22" (1/1) ... [2021-11-20 22:50:22,886 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:50:22" (1/1) ... [2021-11-20 22:50:22,891 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:50:22" (1/1) ... [2021-11-20 22:50:22,915 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-20 22:50:22,916 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-20 22:50:22,916 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-20 22:50:22,917 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-20 22:50:22,918 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:50:22" (1/1) ... [2021-11-20 22:50:22,926 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 22:50:22,938 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6669abe-9aa4-4f3a-8353-445e555e2e5f/bin/utaipan-TEXQjIfE4P/z3 [2021-11-20 22:50:22,952 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6669abe-9aa4-4f3a-8353-445e555e2e5f/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-20 22:50:22,982 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6669abe-9aa4-4f3a-8353-445e555e2e5f/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-20 22:50:23,004 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free_int [2021-11-20 22:50:23,005 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free_int [2021-11-20 22:50:23,006 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-20 22:50:23,007 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-20 22:50:23,007 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-20 22:50:23,007 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-20 22:50:23,007 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-20 22:50:23,007 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-20 22:50:23,007 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-20 22:50:23,008 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-20 22:50:23,008 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-20 22:50:23,008 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-20 22:50:23,008 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-20 22:50:23,008 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-20 22:50:23,008 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_remove [2021-11-20 22:50:23,009 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_remove [2021-11-20 22:50:23,009 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-20 22:50:23,010 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-20 22:50:23,010 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-20 22:50:23,010 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-20 22:50:23,010 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_alloc_skb_14 [2021-11-20 22:50:23,010 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_alloc_skb_14 [2021-11-20 22:50:23,011 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-20 22:50:23,011 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-20 22:50:23,011 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_alloc [2021-11-20 22:50:23,011 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_alloc [2021-11-20 22:50:23,011 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2021-11-20 22:50:23,011 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2021-11-20 22:50:23,012 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_successful_zalloc [2021-11-20 22:50:23,012 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_successful_zalloc [2021-11-20 22:50:23,012 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-20 22:50:23,013 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-11-20 22:50:23,013 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-11-20 22:50:23,013 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-11-20 22:50:23,013 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-11-20 22:50:23,013 INFO L130 BoogieDeclarations]: Found specification of procedure skb_mac_header [2021-11-20 22:50:23,013 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_mac_header [2021-11-20 22:50:23,014 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-20 22:50:23,014 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-20 22:50:23,014 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-20 22:50:23,014 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reset_mac_header [2021-11-20 22:50:23,015 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reset_mac_header [2021-11-20 22:50:23,015 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-20 22:50:23,015 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~int~X~$Pointer$~X~int~TO~VOID [2021-11-20 22:50:23,015 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~int~X~$Pointer$~X~int~TO~VOID [2021-11-20 22:50:23,015 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-20 22:50:23,015 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-20 22:50:23,016 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-20 22:50:23,374 INFO L236 CfgBuilder]: Building ICFG [2021-11-20 22:50:23,376 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-20 22:50:23,487 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-20 22:50:24,119 INFO L277 CfgBuilder]: Performing block encoding [2021-11-20 22:50:24,304 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-20 22:50:24,304 INFO L301 CfgBuilder]: Removed 3 assume(true) statements. [2021-11-20 22:50:24,307 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:50:24 BoogieIcfgContainer [2021-11-20 22:50:24,307 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-20 22:50:24,309 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-20 22:50:24,309 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-20 22:50:24,313 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-20 22:50:24,314 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 10:50:21" (1/3) ... [2021-11-20 22:50:24,315 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44272298 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:50:24, skipping insertion in model container [2021-11-20 22:50:24,315 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:50:22" (2/3) ... [2021-11-20 22:50:24,315 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44272298 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:50:24, skipping insertion in model container [2021-11-20 22:50:24,316 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:50:24" (3/3) ... [2021-11-20 22:50:24,317 INFO L111 eAbstractionObserver]: Analyzing ICFG 205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--arcnet--capmode.ko-entry_point.cil.out.i [2021-11-20 22:50:24,327 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-20 22:50:24,327 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-20 22:50:24,391 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-20 22:50:24,407 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-20 22:50:24,407 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-20 22:50:24,438 INFO L276 IsEmpty]: Start isEmpty. Operand has 168 states, 111 states have (on average 1.3963963963963963) internal successors, (155), 116 states have internal predecessors, (155), 40 states have call successors, (40), 16 states have call predecessors, (40), 15 states have return successors, (37), 37 states have call predecessors, (37), 37 states have call successors, (37) [2021-11-20 22:50:24,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-20 22:50:24,447 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 22:50:24,447 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 22:50:24,448 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 22:50:24,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 22:50:24,454 INFO L85 PathProgramCache]: Analyzing trace with hash -1812325249, now seen corresponding path program 1 times [2021-11-20 22:50:24,462 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 22:50:24,463 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [74095435] [2021-11-20 22:50:24,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 22:50:24,464 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 22:50:24,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 22:50:24,845 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 22:50:24,845 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 22:50:24,846 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [74095435] [2021-11-20 22:50:24,847 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [74095435] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 22:50:24,847 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 22:50:24,847 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-20 22:50:24,849 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [886468240] [2021-11-20 22:50:24,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 22:50:24,854 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 22:50:24,855 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 22:50:24,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 22:50:24,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 22:50:24,884 INFO L87 Difference]: Start difference. First operand has 168 states, 111 states have (on average 1.3963963963963963) internal successors, (155), 116 states have internal predecessors, (155), 40 states have call successors, (40), 16 states have call predecessors, (40), 15 states have return successors, (37), 37 states have call predecessors, (37), 37 states have call successors, (37) Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-11-20 22:50:25,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 22:50:25,159 INFO L93 Difference]: Finished difference Result 481 states and 678 transitions. [2021-11-20 22:50:25,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 22:50:25,161 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 24 [2021-11-20 22:50:25,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 22:50:25,175 INFO L225 Difference]: With dead ends: 481 [2021-11-20 22:50:25,175 INFO L226 Difference]: Without dead ends: 307 [2021-11-20 22:50:25,181 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 22:50:25,184 INFO L933 BasicCegarLoop]: 225 mSDtfsCounter, 199 mSDsluCounter, 214 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 199 SdHoareTripleChecker+Valid, 408 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-20 22:50:25,185 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [199 Valid, 408 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-20 22:50:25,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 307 states. [2021-11-20 22:50:25,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 307 to 307. [2021-11-20 22:50:25,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 307 states, 208 states have (on average 1.3173076923076923) internal successors, (274), 208 states have internal predecessors, (274), 70 states have call successors, (70), 29 states have call predecessors, (70), 28 states have return successors, (69), 69 states have call predecessors, (69), 69 states have call successors, (69) [2021-11-20 22:50:25,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 307 states to 307 states and 413 transitions. [2021-11-20 22:50:25,266 INFO L78 Accepts]: Start accepts. Automaton has 307 states and 413 transitions. Word has length 24 [2021-11-20 22:50:25,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 22:50:25,267 INFO L470 AbstractCegarLoop]: Abstraction has 307 states and 413 transitions. [2021-11-20 22:50:25,267 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-11-20 22:50:25,268 INFO L276 IsEmpty]: Start isEmpty. Operand 307 states and 413 transitions. [2021-11-20 22:50:25,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-11-20 22:50:25,270 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 22:50:25,271 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 22:50:25,271 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-20 22:50:25,271 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 22:50:25,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 22:50:25,272 INFO L85 PathProgramCache]: Analyzing trace with hash 321293892, now seen corresponding path program 1 times [2021-11-20 22:50:25,272 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 22:50:25,273 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1025938671] [2021-11-20 22:50:25,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 22:50:25,273 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 22:50:25,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 22:50:25,365 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 22:50:25,365 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 22:50:25,365 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1025938671] [2021-11-20 22:50:25,366 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1025938671] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 22:50:25,366 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 22:50:25,366 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-20 22:50:25,367 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1048979831] [2021-11-20 22:50:25,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 22:50:25,368 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 22:50:25,368 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 22:50:25,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 22:50:25,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 22:50:25,369 INFO L87 Difference]: Start difference. First operand 307 states and 413 transitions. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-11-20 22:50:25,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 22:50:25,509 INFO L93 Difference]: Finished difference Result 611 states and 822 transitions. [2021-11-20 22:50:25,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 22:50:25,510 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 28 [2021-11-20 22:50:25,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 22:50:25,514 INFO L225 Difference]: With dead ends: 611 [2021-11-20 22:50:25,515 INFO L226 Difference]: Without dead ends: 308 [2021-11-20 22:50:25,517 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 22:50:25,519 INFO L933 BasicCegarLoop]: 183 mSDtfsCounter, 0 mSDsluCounter, 215 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 365 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-20 22:50:25,519 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 365 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-20 22:50:25,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 308 states. [2021-11-20 22:50:25,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 308 to 308. [2021-11-20 22:50:25,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 308 states, 209 states have (on average 1.3157894736842106) internal successors, (275), 209 states have internal predecessors, (275), 70 states have call successors, (70), 29 states have call predecessors, (70), 28 states have return successors, (69), 69 states have call predecessors, (69), 69 states have call successors, (69) [2021-11-20 22:50:25,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 308 states to 308 states and 414 transitions. [2021-11-20 22:50:25,555 INFO L78 Accepts]: Start accepts. Automaton has 308 states and 414 transitions. Word has length 28 [2021-11-20 22:50:25,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 22:50:25,555 INFO L470 AbstractCegarLoop]: Abstraction has 308 states and 414 transitions. [2021-11-20 22:50:25,556 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-11-20 22:50:25,556 INFO L276 IsEmpty]: Start isEmpty. Operand 308 states and 414 transitions. [2021-11-20 22:50:25,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-11-20 22:50:25,558 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 22:50:25,558 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 22:50:25,558 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-20 22:50:25,559 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 22:50:25,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 22:50:25,559 INFO L85 PathProgramCache]: Analyzing trace with hash 167322499, now seen corresponding path program 1 times [2021-11-20 22:50:25,560 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 22:50:25,560 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [441315721] [2021-11-20 22:50:25,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 22:50:25,560 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 22:50:25,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 22:50:25,645 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 22:50:25,645 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 22:50:25,646 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [441315721] [2021-11-20 22:50:25,646 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [441315721] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 22:50:25,646 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [719479547] [2021-11-20 22:50:25,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 22:50:25,647 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 22:50:25,647 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6669abe-9aa4-4f3a-8353-445e555e2e5f/bin/utaipan-TEXQjIfE4P/z3 [2021-11-20 22:50:25,649 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6669abe-9aa4-4f3a-8353-445e555e2e5f/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 22:50:25,655 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6669abe-9aa4-4f3a-8353-445e555e2e5f/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-20 22:50:25,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 22:50:25,869 INFO L263 TraceCheckSpWp]: Trace formula consists of 361 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-20 22:50:25,876 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 22:50:26,002 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 22:50:26,003 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 22:50:26,094 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 22:50:26,095 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [719479547] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-20 22:50:26,095 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [958654144] [2021-11-20 22:50:26,124 INFO L159 IcfgInterpreter]: Started Sifa with 29 locations of interest [2021-11-20 22:50:26,125 INFO L166 IcfgInterpreter]: Building call graph [2021-11-20 22:50:26,130 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-20 22:50:26,137 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-20 22:50:26,137 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-20 22:50:26,425 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 47 [2021-11-20 22:50:26,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:50:26,537 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:50:26,939 INFO L354 Elim1Store]: treesize reduction 288, result has 33.5 percent of original size [2021-11-20 22:50:26,939 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 19 select indices, 19 select index equivalence classes, 155 disjoint index pairs (out of 171 index pairs), introduced 19 new quantified variables, introduced 32 case distinctions, treesize of input 102 treesize of output 217 [2021-11-20 22:50:27,362 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 47 [2021-11-20 22:50:27,456 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:50:27,465 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 17 select indices, 17 select index equivalence classes, 153 disjoint index pairs (out of 136 index pairs), introduced 17 new quantified variables, introduced 0 case distinctions, treesize of input 92 treesize of output 142 [2021-11-20 22:50:28,827 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2021-11-20 22:50:28,835 INFO L388 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 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-20 22:50:28,869 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 6 [2021-11-20 22:50:29,253 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:50:29,254 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:50:29,261 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 19 select indices, 19 select index equivalence classes, 171 disjoint index pairs (out of 171 index pairs), introduced 19 new quantified variables, introduced 0 case distinctions, treesize of input 96 treesize of output 58 [2021-11-20 22:50:29,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:50:29,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:50:29,634 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:50:29,637 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 17 select indices, 17 select index equivalence classes, 32 disjoint index pairs (out of 136 index pairs), introduced 17 new quantified variables, introduced 0 case distinctions, treesize of input 124 treesize of output 52 [2021-11-20 22:50:29,671 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:50:29,675 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 18 select indices, 18 select index equivalence classes, 153 disjoint index pairs (out of 153 index pairs), introduced 18 new quantified variables, introduced 0 case distinctions, treesize of input 91 treesize of output 55 [2021-11-20 22:50:30,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:50:30,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:50:30,768 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 19 select indices, 19 select index equivalence classes, 171 disjoint index pairs (out of 171 index pairs), introduced 19 new quantified variables, introduced 0 case distinctions, treesize of input 96 treesize of output 58 [2021-11-20 22:50:30,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:50:30,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:50:30,812 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:50:30,816 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 17 select indices, 17 select index equivalence classes, 32 disjoint index pairs (out of 136 index pairs), introduced 17 new quantified variables, introduced 0 case distinctions, treesize of input 124 treesize of output 52 [2021-11-20 22:50:31,215 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:50:31,217 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 18 select indices, 18 select index equivalence classes, 153 disjoint index pairs (out of 153 index pairs), introduced 18 new quantified variables, introduced 0 case distinctions, treesize of input 91 treesize of output 55 [2021-11-20 22:50:33,148 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_successful_zalloc with input of size 248 for LOIs [2021-11-20 22:50:34,655 INFO L354 Elim1Store]: treesize reduction 388, result has 19.0 percent of original size [2021-11-20 22:50:34,656 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 18 select indices, 18 select index equivalence classes, 137 disjoint index pairs (out of 153 index pairs), introduced 18 new quantified variables, introduced 35 case distinctions, treesize of input 206 treesize of output 259 [2021-11-20 22:50:34,993 INFO L354 Elim1Store]: treesize reduction 540, result has 14.4 percent of original size [2021-11-20 22:50:34,994 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 20 select indices, 20 select index equivalence classes, 154 disjoint index pairs (out of 190 index pairs), introduced 20 new quantified variables, introduced 54 case distinctions, treesize of input 205 treesize of output 259 [2021-11-20 22:50:36,383 INFO L354 Elim1Store]: treesize reduction 388, result has 19.0 percent of original size [2021-11-20 22:50:36,384 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 18 select indices, 18 select index equivalence classes, 137 disjoint index pairs (out of 153 index pairs), introduced 18 new quantified variables, introduced 35 case distinctions, treesize of input 206 treesize of output 259 [2021-11-20 22:50:36,729 INFO L354 Elim1Store]: treesize reduction 540, result has 14.4 percent of original size [2021-11-20 22:50:36,730 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 20 select indices, 20 select index equivalence classes, 154 disjoint index pairs (out of 190 index pairs), introduced 20 new quantified variables, introduced 54 case distinctions, treesize of input 205 treesize of output 259 [2021-11-20 22:50:39,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:50:39,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:50:39,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:50:39,155 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 17 select indices, 17 select index equivalence classes, 32 disjoint index pairs (out of 136 index pairs), introduced 17 new quantified variables, introduced 0 case distinctions, treesize of input 124 treesize of output 52 [2021-11-20 22:50:39,455 INFO L354 Elim1Store]: treesize reduction 388, result has 19.0 percent of original size [2021-11-20 22:50:39,456 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 18 select indices, 18 select index equivalence classes, 136 disjoint index pairs (out of 153 index pairs), introduced 18 new quantified variables, introduced 35 case distinctions, treesize of input 225 treesize of output 278 [2021-11-20 22:50:39,811 INFO L354 Elim1Store]: treesize reduction 562, result has 14.6 percent of original size [2021-11-20 22:50:39,811 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 20 select indices, 20 select index equivalence classes, 153 disjoint index pairs (out of 190 index pairs), introduced 20 new quantified variables, introduced 56 case distinctions, treesize of input 223 treesize of output 277 [2021-11-20 22:50:41,007 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:50:41,011 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:50:41,012 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:50:41,027 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 17 select indices, 17 select index equivalence classes, 32 disjoint index pairs (out of 136 index pairs), introduced 17 new quantified variables, introduced 0 case distinctions, treesize of input 124 treesize of output 52 [2021-11-20 22:50:41,427 INFO L354 Elim1Store]: treesize reduction 388, result has 19.0 percent of original size [2021-11-20 22:50:41,428 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 18 select indices, 18 select index equivalence classes, 136 disjoint index pairs (out of 153 index pairs), introduced 18 new quantified variables, introduced 35 case distinctions, treesize of input 225 treesize of output 278 [2021-11-20 22:50:41,788 INFO L354 Elim1Store]: treesize reduction 562, result has 14.6 percent of original size [2021-11-20 22:50:41,788 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 20 select indices, 20 select index equivalence classes, 153 disjoint index pairs (out of 190 index pairs), introduced 20 new quantified variables, introduced 56 case distinctions, treesize of input 223 treesize of output 277 [2021-11-20 22:50:44,032 INFO L354 Elim1Store]: treesize reduction 388, result has 19.0 percent of original size [2021-11-20 22:50:44,033 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 18 select indices, 18 select index equivalence classes, 136 disjoint index pairs (out of 153 index pairs), introduced 18 new quantified variables, introduced 35 case distinctions, treesize of input 225 treesize of output 278 [2021-11-20 22:50:44,377 INFO L354 Elim1Store]: treesize reduction 562, result has 14.6 percent of original size [2021-11-20 22:50:44,378 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 20 select indices, 20 select index equivalence classes, 153 disjoint index pairs (out of 190 index pairs), introduced 20 new quantified variables, introduced 56 case distinctions, treesize of input 223 treesize of output 277 [2021-11-20 22:50:44,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:50:44,656 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:50:44,656 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:50:44,659 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 17 select indices, 17 select index equivalence classes, 32 disjoint index pairs (out of 136 index pairs), introduced 17 new quantified variables, introduced 0 case distinctions, treesize of input 124 treesize of output 52 [2021-11-20 22:50:45,218 INFO L354 Elim1Store]: treesize reduction 388, result has 19.0 percent of original size [2021-11-20 22:50:45,219 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 18 select indices, 18 select index equivalence classes, 137 disjoint index pairs (out of 153 index pairs), introduced 18 new quantified variables, introduced 35 case distinctions, treesize of input 206 treesize of output 259 [2021-11-20 22:50:45,612 INFO L354 Elim1Store]: treesize reduction 540, result has 14.4 percent of original size [2021-11-20 22:50:45,613 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 20 select indices, 20 select index equivalence classes, 154 disjoint index pairs (out of 190 index pairs), introduced 20 new quantified variables, introduced 54 case distinctions, treesize of input 205 treesize of output 259 [2021-11-20 22:50:45,895 INFO L197 IcfgInterpreter]: Interpreting procedure #Ultimate.meminit with input of size 258 for LOIs [2021-11-20 22:50:46,533 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 206 for LOIs [2021-11-20 22:50:47,006 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-20 22:50:53,846 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSifa [958654144] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 22:50:53,846 INFO L186 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2021-11-20 22:50:53,847 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [4, 4, 4] total 19 [2021-11-20 22:50:53,847 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [743444665] [2021-11-20 22:50:53,847 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 22:50:53,848 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-20 22:50:53,848 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 22:50:53,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-20 22:50:53,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=293, Unknown=0, NotChecked=0, Total=342 [2021-11-20 22:50:53,849 INFO L87 Difference]: Start difference. First operand 308 states and 414 transitions. Second operand has 14 states, 9 states have (on average 2.4444444444444446) internal successors, (22), 8 states have internal predecessors, (22), 4 states have call successors, (4), 4 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-20 22:50:54,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 22:50:54,596 INFO L93 Difference]: Finished difference Result 623 states and 833 transitions. [2021-11-20 22:50:54,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-20 22:50:54,597 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 9 states have (on average 2.4444444444444446) internal successors, (22), 8 states have internal predecessors, (22), 4 states have call successors, (4), 4 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 29 [2021-11-20 22:50:54,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 22:50:54,600 INFO L225 Difference]: With dead ends: 623 [2021-11-20 22:50:54,600 INFO L226 Difference]: Without dead ends: 319 [2021-11-20 22:50:54,601 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 71 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 6.9s TimeCoverageRelationStatistics Valid=49, Invalid=293, Unknown=0, NotChecked=0, Total=342 [2021-11-20 22:50:54,602 INFO L933 BasicCegarLoop]: 179 mSDtfsCounter, 0 mSDsluCounter, 1183 mSDsCounter, 0 mSdLazyCounter, 247 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1282 SdHoareTripleChecker+Invalid, 1072 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 247 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 825 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-11-20 22:50:54,603 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 1282 Invalid, 1072 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 247 Invalid, 0 Unknown, 825 Unchecked, 0.7s Time] [2021-11-20 22:50:54,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 319 states. [2021-11-20 22:50:54,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 319 to 319. [2021-11-20 22:50:54,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 319 states, 215 states have (on average 1.3069767441860465) internal successors, (281), 215 states have internal predecessors, (281), 72 states have call successors, (72), 32 states have call predecessors, (72), 31 states have return successors, (71), 71 states have call predecessors, (71), 71 states have call successors, (71) [2021-11-20 22:50:54,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 319 states to 319 states and 424 transitions. [2021-11-20 22:50:54,635 INFO L78 Accepts]: Start accepts. Automaton has 319 states and 424 transitions. Word has length 29 [2021-11-20 22:50:54,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 22:50:54,635 INFO L470 AbstractCegarLoop]: Abstraction has 319 states and 424 transitions. [2021-11-20 22:50:54,635 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 9 states have (on average 2.4444444444444446) internal successors, (22), 8 states have internal predecessors, (22), 4 states have call successors, (4), 4 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-20 22:50:54,636 INFO L276 IsEmpty]: Start isEmpty. Operand 319 states and 424 transitions. [2021-11-20 22:50:54,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-11-20 22:50:54,637 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 22:50:54,637 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 22:50:54,665 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6669abe-9aa4-4f3a-8353-445e555e2e5f/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-20 22:50:54,846 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6669abe-9aa4-4f3a-8353-445e555e2e5f/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 22:50:54,849 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 22:50:54,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 22:50:54,850 INFO L85 PathProgramCache]: Analyzing trace with hash 772600975, now seen corresponding path program 1 times [2021-11-20 22:50:54,851 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 22:50:54,853 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [916293286] [2021-11-20 22:50:54,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 22:50:54,853 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 22:50:54,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 22:50:54,919 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-20 22:50:54,919 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 22:50:54,920 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [916293286] [2021-11-20 22:50:54,920 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [916293286] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 22:50:54,920 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [822820890] [2021-11-20 22:50:54,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 22:50:54,920 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 22:50:54,921 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6669abe-9aa4-4f3a-8353-445e555e2e5f/bin/utaipan-TEXQjIfE4P/z3 [2021-11-20 22:50:54,923 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6669abe-9aa4-4f3a-8353-445e555e2e5f/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 22:50:54,962 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6669abe-9aa4-4f3a-8353-445e555e2e5f/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-20 22:50:55,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 22:50:55,111 INFO L263 TraceCheckSpWp]: Trace formula consists of 367 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-20 22:50:55,114 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 22:50:55,201 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-20 22:50:55,201 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 22:50:55,303 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-20 22:50:55,304 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [822820890] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-20 22:50:55,304 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1260592627] [2021-11-20 22:50:55,307 INFO L159 IcfgInterpreter]: Started Sifa with 29 locations of interest [2021-11-20 22:50:55,307 INFO L166 IcfgInterpreter]: Building call graph [2021-11-20 22:50:55,307 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-20 22:50:55,307 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-20 22:50:55,308 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-20 22:50:55,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:50:55,805 INFO L354 Elim1Store]: treesize reduction 160, result has 47.5 percent of original size [2021-11-20 22:50:55,806 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 17 select indices, 17 select index equivalence classes, 137 disjoint index pairs (out of 136 index pairs), introduced 17 new quantified variables, introduced 16 case distinctions, treesize of input 92 treesize of output 206 [2021-11-20 22:50:56,163 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:50:56,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:50:56,493 INFO L354 Elim1Store]: treesize reduction 288, result has 33.5 percent of original size [2021-11-20 22:50:56,494 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 19 select indices, 19 select index equivalence classes, 155 disjoint index pairs (out of 171 index pairs), introduced 19 new quantified variables, introduced 32 case distinctions, treesize of input 102 treesize of output 217 [2021-11-20 22:50:56,740 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 47 [2021-11-20 22:50:56,900 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 47 [2021-11-20 22:50:56,962 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 16 [2021-11-20 22:50:56,965 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 16 [2021-11-20 22:50:57,128 INFO L388 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 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-20 22:50:57,139 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2021-11-20 22:50:57,162 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 6 [2021-11-20 22:50:57,638 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 16 [2021-11-20 22:50:58,580 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-20 22:50:58,817 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-20 22:50:58,922 INFO L354 Elim1Store]: treesize reduction 17, result has 45.2 percent of original size [2021-11-20 22:50:58,923 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 18 treesize of output 26 [2021-11-20 22:50:58,986 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 8 treesize of output 7 [2021-11-20 22:50:59,704 INFO L354 Elim1Store]: treesize reduction 31, result has 3.1 percent of original size [2021-11-20 22:50:59,705 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 225 treesize of output 217 [2021-11-20 22:50:59,754 INFO L354 Elim1Store]: treesize reduction 20, result has 41.2 percent of original size [2021-11-20 22:50:59,755 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 217 treesize of output 221 [2021-11-20 22:50:59,788 INFO L354 Elim1Store]: treesize reduction 29, result has 3.3 percent of original size [2021-11-20 22:50:59,789 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 222 treesize of output 214 [2021-11-20 22:51:00,176 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 10 [2021-11-20 22:51:07,499 INFO L354 Elim1Store]: treesize reduction 28, result has 44.0 percent of original size [2021-11-20 22:51:07,500 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 46 treesize of output 53 [2021-11-20 22:51:07,786 INFO L354 Elim1Store]: treesize reduction 18, result has 64.0 percent of original size [2021-11-20 22:51:07,788 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 54 treesize of output 71 [2021-11-20 22:51:08,300 INFO L354 Elim1Store]: treesize reduction 50, result has 41.2 percent of original size [2021-11-20 22:51:08,301 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 33 treesize of output 60 [2021-11-20 22:51:08,468 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 1 [2021-11-20 22:51:08,786 INFO L354 Elim1Store]: treesize reduction 29, result has 14.7 percent of original size [2021-11-20 22:51:08,787 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 9 [2021-11-20 22:51:09,994 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 1 [2021-11-20 22:51:10,022 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 62 treesize of output 49 [2021-11-20 22:51:10,043 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 25 [2021-11-20 22:51:11,190 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 16 [2021-11-20 22:51:11,339 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 16 [2021-11-20 22:51:11,343 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_successful_zalloc with input of size 73 for LOIs [2021-11-20 22:51:11,577 INFO L388 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 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-20 22:51:11,677 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2021-11-20 22:51:12,080 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2021-11-20 22:51:12,140 INFO L388 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 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-20 22:51:12,752 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 37 treesize of output 36 [2021-11-20 22:51:12,763 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 32 [2021-11-20 22:51:13,189 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 37 treesize of output 36 [2021-11-20 22:51:13,208 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 32 [2021-11-20 22:51:14,037 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 37 treesize of output 36 [2021-11-20 22:51:14,046 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 32 [2021-11-20 22:51:14,117 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2021-11-20 22:51:14,182 INFO L388 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 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-20 22:51:14,272 INFO L197 IcfgInterpreter]: Interpreting procedure #Ultimate.meminit with input of size 83 for LOIs [2021-11-20 22:51:14,446 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 81 for LOIs [2021-11-20 22:51:14,603 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-20 22:51:21,656 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSifa [1260592627] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 22:51:21,656 INFO L186 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2021-11-20 22:51:21,656 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [4, 4, 4] total 28 [2021-11-20 22:51:21,657 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1986443346] [2021-11-20 22:51:21,657 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 22:51:21,657 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-11-20 22:51:21,657 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 22:51:21,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-11-20 22:51:21,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=672, Unknown=0, NotChecked=0, Total=756 [2021-11-20 22:51:21,658 INFO L87 Difference]: Start difference. First operand 319 states and 424 transitions. Second operand has 23 states, 18 states have (on average 1.2777777777777777) internal successors, (23), 17 states have internal predecessors, (23), 4 states have call successors, (4), 4 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-20 22:51:25,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 22:51:25,037 INFO L93 Difference]: Finished difference Result 642 states and 858 transitions. [2021-11-20 22:51:25,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-11-20 22:51:25,038 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 18 states have (on average 1.2777777777777777) internal successors, (23), 17 states have internal predecessors, (23), 4 states have call successors, (4), 4 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 30 [2021-11-20 22:51:25,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 22:51:25,041 INFO L225 Difference]: With dead ends: 642 [2021-11-20 22:51:25,041 INFO L226 Difference]: Without dead ends: 338 [2021-11-20 22:51:25,042 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 65 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 209 ImplicationChecksByTransitivity, 7.8s TimeCoverageRelationStatistics Valid=92, Invalid=720, Unknown=0, NotChecked=0, Total=812 [2021-11-20 22:51:25,043 INFO L933 BasicCegarLoop]: 168 mSDtfsCounter, 29 mSDsluCounter, 1753 mSDsCounter, 0 mSdLazyCounter, 1406 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 1774 SdHoareTripleChecker+Invalid, 1594 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 1406 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 176 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2021-11-20 22:51:25,044 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [30 Valid, 1774 Invalid, 1594 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 1406 Invalid, 0 Unknown, 176 Unchecked, 2.5s Time] [2021-11-20 22:51:25,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 338 states. [2021-11-20 22:51:25,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 338 to 335. [2021-11-20 22:51:25,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 335 states, 231 states have (on average 1.3073593073593073) internal successors, (302), 231 states have internal predecessors, (302), 72 states have call successors, (72), 32 states have call predecessors, (72), 31 states have return successors, (71), 71 states have call predecessors, (71), 71 states have call successors, (71) [2021-11-20 22:51:25,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 335 states to 335 states and 445 transitions. [2021-11-20 22:51:25,092 INFO L78 Accepts]: Start accepts. Automaton has 335 states and 445 transitions. Word has length 30 [2021-11-20 22:51:25,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 22:51:25,093 INFO L470 AbstractCegarLoop]: Abstraction has 335 states and 445 transitions. [2021-11-20 22:51:25,093 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 18 states have (on average 1.2777777777777777) internal successors, (23), 17 states have internal predecessors, (23), 4 states have call successors, (4), 4 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-20 22:51:25,093 INFO L276 IsEmpty]: Start isEmpty. Operand 335 states and 445 transitions. [2021-11-20 22:51:25,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-11-20 22:51:25,102 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 22:51:25,102 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 22:51:25,127 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6669abe-9aa4-4f3a-8353-445e555e2e5f/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-20 22:51:25,306 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6669abe-9aa4-4f3a-8353-445e555e2e5f/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 22:51:25,307 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 22:51:25,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 22:51:25,307 INFO L85 PathProgramCache]: Analyzing trace with hash 644187203, now seen corresponding path program 1 times [2021-11-20 22:51:25,307 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 22:51:25,307 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1424833383] [2021-11-20 22:51:25,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 22:51:25,308 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 22:51:25,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 22:51:25,387 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2021-11-20 22:51:25,387 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 22:51:25,387 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1424833383] [2021-11-20 22:51:25,387 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1424833383] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 22:51:25,388 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [803910590] [2021-11-20 22:51:25,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 22:51:25,388 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 22:51:25,388 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6669abe-9aa4-4f3a-8353-445e555e2e5f/bin/utaipan-TEXQjIfE4P/z3 [2021-11-20 22:51:25,389 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6669abe-9aa4-4f3a-8353-445e555e2e5f/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 22:51:25,395 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6669abe-9aa4-4f3a-8353-445e555e2e5f/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-20 22:51:25,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 22:51:25,552 INFO L263 TraceCheckSpWp]: Trace formula consists of 492 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-20 22:51:25,556 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 22:51:25,668 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-20 22:51:25,669 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 22:51:25,669 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [803910590] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 22:51:25,669 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-20 22:51:25,669 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2021-11-20 22:51:25,669 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1303449221] [2021-11-20 22:51:25,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 22:51:25,670 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 22:51:25,670 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 22:51:25,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 22:51:25,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-20 22:51:25,670 INFO L87 Difference]: Start difference. First operand 335 states and 445 transitions. Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 3 states have call successors, (8), 3 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-11-20 22:51:25,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 22:51:25,768 INFO L93 Difference]: Finished difference Result 493 states and 658 transitions. [2021-11-20 22:51:25,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 22:51:25,769 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 3 states have call successors, (8), 3 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 54 [2021-11-20 22:51:25,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 22:51:25,771 INFO L225 Difference]: With dead ends: 493 [2021-11-20 22:51:25,771 INFO L226 Difference]: Without dead ends: 189 [2021-11-20 22:51:25,772 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-20 22:51:25,773 INFO L933 BasicCegarLoop]: 179 mSDtfsCounter, 198 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 198 SdHoareTripleChecker+Valid, 179 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-20 22:51:25,773 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [198 Valid, 179 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-20 22:51:25,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2021-11-20 22:51:25,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 186. [2021-11-20 22:51:25,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 186 states, 129 states have (on average 1.2945736434108528) internal successors, (167), 129 states have internal predecessors, (167), 39 states have call successors, (39), 18 states have call predecessors, (39), 17 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2021-11-20 22:51:25,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 244 transitions. [2021-11-20 22:51:25,795 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 244 transitions. Word has length 54 [2021-11-20 22:51:25,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 22:51:25,796 INFO L470 AbstractCegarLoop]: Abstraction has 186 states and 244 transitions. [2021-11-20 22:51:25,796 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 3 states have call successors, (8), 3 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-11-20 22:51:25,796 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 244 transitions. [2021-11-20 22:51:25,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-11-20 22:51:25,797 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 22:51:25,798 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 22:51:25,838 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6669abe-9aa4-4f3a-8353-445e555e2e5f/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-20 22:51:26,018 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6669abe-9aa4-4f3a-8353-445e555e2e5f/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 22:51:26,019 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 22:51:26,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 22:51:26,019 INFO L85 PathProgramCache]: Analyzing trace with hash -372528555, now seen corresponding path program 1 times [2021-11-20 22:51:26,019 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 22:51:26,019 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1483097933] [2021-11-20 22:51:26,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 22:51:26,019 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 22:51:26,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 22:51:26,107 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2021-11-20 22:51:26,110 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 22:51:26,111 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1483097933] [2021-11-20 22:51:26,112 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1483097933] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 22:51:26,112 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [805100718] [2021-11-20 22:51:26,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 22:51:26,113 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 22:51:26,113 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6669abe-9aa4-4f3a-8353-445e555e2e5f/bin/utaipan-TEXQjIfE4P/z3 [2021-11-20 22:51:26,118 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6669abe-9aa4-4f3a-8353-445e555e2e5f/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 22:51:26,126 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6669abe-9aa4-4f3a-8353-445e555e2e5f/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-20 22:51:26,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 22:51:26,312 INFO L263 TraceCheckSpWp]: Trace formula consists of 520 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-20 22:51:26,315 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 22:51:26,417 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 25 proven. 1 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-11-20 22:51:26,417 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 22:51:26,574 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2021-11-20 22:51:26,574 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [805100718] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-20 22:51:26,574 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [494252646] [2021-11-20 22:51:26,577 INFO L159 IcfgInterpreter]: Started Sifa with 34 locations of interest [2021-11-20 22:51:26,577 INFO L166 IcfgInterpreter]: Building call graph [2021-11-20 22:51:26,578 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-20 22:51:26,578 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-20 22:51:26,578 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-20 22:51:26,677 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 47 [2021-11-20 22:51:26,750 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 47 [2021-11-20 22:51:26,817 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:51:27,023 INFO L354 Elim1Store]: treesize reduction 160, result has 47.5 percent of original size [2021-11-20 22:51:27,023 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 17 select indices, 17 select index equivalence classes, 137 disjoint index pairs (out of 136 index pairs), introduced 17 new quantified variables, introduced 16 case distinctions, treesize of input 92 treesize of output 206 [2021-11-20 22:51:27,263 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:51:27,266 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:51:27,527 INFO L354 Elim1Store]: treesize reduction 288, result has 33.5 percent of original size [2021-11-20 22:51:27,528 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 19 select indices, 19 select index equivalence classes, 155 disjoint index pairs (out of 171 index pairs), introduced 19 new quantified variables, introduced 32 case distinctions, treesize of input 102 treesize of output 217 [2021-11-20 22:51:27,942 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 16 [2021-11-20 22:51:27,945 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 16 [2021-11-20 22:51:28,147 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2021-11-20 22:51:28,154 INFO L388 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 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-20 22:51:28,179 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 6 [2021-11-20 22:51:28,625 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 16 [2021-11-20 22:51:29,769 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2021-11-20 22:51:29,823 INFO L354 Elim1Store]: treesize reduction 20, result has 41.2 percent of original size [2021-11-20 22:51:29,823 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 29 [2021-11-20 22:51:29,865 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 10 [2021-11-20 22:51:30,087 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-11-20 22:51:30,490 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:51:30,491 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 234 treesize of output 233 [2021-11-20 22:51:30,510 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:51:30,512 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 230 treesize of output 229 [2021-11-20 22:51:30,562 INFO L354 Elim1Store]: treesize reduction 20, result has 41.2 percent of original size [2021-11-20 22:51:30,563 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 226 treesize of output 230 [2021-11-20 22:51:30,762 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 10 [2021-11-20 22:51:30,938 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-20 22:51:37,816 INFO L354 Elim1Store]: treesize reduction 29, result has 60.8 percent of original size [2021-11-20 22:51:37,817 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 56 treesize of output 80 [2021-11-20 22:51:38,097 INFO L354 Elim1Store]: treesize reduction 44, result has 40.5 percent of original size [2021-11-20 22:51:38,097 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 68 treesize of output 77 [2021-11-20 22:51:38,667 INFO L354 Elim1Store]: treesize reduction 62, result has 36.1 percent of original size [2021-11-20 22:51:38,667 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 42 treesize of output 69 [2021-11-20 22:51:38,883 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 22 treesize of output 1 [2021-11-20 22:51:39,008 INFO L354 Elim1Store]: treesize reduction 34, result has 38.2 percent of original size [2021-11-20 22:51:39,008 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 25 [2021-11-20 22:51:40,137 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 1 [2021-11-20 22:51:40,159 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 62 treesize of output 49 [2021-11-20 22:51:40,176 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 25 [2021-11-20 22:51:44,538 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-20 22:51:44,591 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2021-11-20 22:51:44,622 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-20 22:51:45,221 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-20 22:51:45,311 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-20 22:51:45,584 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2021-11-20 22:52:07,648 INFO L354 Elim1Store]: treesize reduction 38, result has 41.5 percent of original size [2021-11-20 22:52:07,649 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 49 treesize of output 58 [2021-11-20 22:52:07,917 INFO L354 Elim1Store]: treesize reduction 26, result has 60.0 percent of original size [2021-11-20 22:52:07,917 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 59 treesize of output 80 [2021-11-20 22:52:08,282 INFO L354 Elim1Store]: treesize reduction 50, result has 41.2 percent of original size [2021-11-20 22:52:08,282 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 36 treesize of output 63 [2021-11-20 22:52:08,379 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 1 [2021-11-20 22:52:08,674 INFO L354 Elim1Store]: treesize reduction 39, result has 15.2 percent of original size [2021-11-20 22:52:08,675 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 11 [2021-11-20 22:52:10,088 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 62 treesize of output 49 [2021-11-20 22:52:10,115 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 25 [2021-11-20 22:52:10,137 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 1 [2021-11-20 22:52:14,269 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2021-11-20 22:52:14,455 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-20 22:52:14,637 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-20 22:52:15,037 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-20 22:52:15,177 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2021-11-20 22:52:15,761 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-20 22:52:15,985 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 16 [2021-11-20 22:52:16,130 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 16 [2021-11-20 22:52:16,133 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_successful_zalloc with input of size 64 for LOIs [2021-11-20 22:52:16,165 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2021-11-20 22:52:16,271 INFO L388 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 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-20 22:52:18,656 INFO L197 IcfgInterpreter]: Interpreting procedure #Ultimate.meminit with input of size 83 for LOIs [2021-11-20 22:52:18,861 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 80 for LOIs [2021-11-20 22:52:19,058 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-20 22:52:36,264 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSifa [494252646] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 22:52:36,264 INFO L186 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2021-11-20 22:52:36,264 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [4, 4, 4] total 36 [2021-11-20 22:52:36,265 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [945259727] [2021-11-20 22:52:36,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 22:52:36,265 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2021-11-20 22:52:36,266 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 22:52:36,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2021-11-20 22:52:36,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=103, Invalid=1157, Unknown=0, NotChecked=0, Total=1260 [2021-11-20 22:52:36,267 INFO L87 Difference]: Start difference. First operand 186 states and 244 transitions. Second operand has 31 states, 24 states have (on average 1.125) internal successors, (27), 23 states have internal predecessors, (27), 6 states have call successors, (6), 4 states have call predecessors, (6), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2021-11-20 22:52:54,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 22:52:54,407 INFO L93 Difference]: Finished difference Result 453 states and 615 transitions. [2021-11-20 22:52:54,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-11-20 22:52:54,407 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 24 states have (on average 1.125) internal successors, (27), 23 states have internal predecessors, (27), 6 states have call successors, (6), 4 states have call predecessors, (6), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Word has length 60 [2021-11-20 22:52:54,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 22:52:54,410 INFO L225 Difference]: With dead ends: 453 [2021-11-20 22:52:54,411 INFO L226 Difference]: Without dead ends: 278 [2021-11-20 22:52:54,412 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 145 SyntacticMatches, 3 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 536 ImplicationChecksByTransitivity, 29.3s TimeCoverageRelationStatistics Valid=163, Invalid=1817, Unknown=0, NotChecked=0, Total=1980 [2021-11-20 22:52:54,413 INFO L933 BasicCegarLoop]: 186 mSDtfsCounter, 77 mSDsluCounter, 3203 mSDsCounter, 0 mSdLazyCounter, 2486 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 3102 SdHoareTripleChecker+Invalid, 2825 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 2486 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 293 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2021-11-20 22:52:54,413 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [83 Valid, 3102 Invalid, 2825 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 2486 Invalid, 0 Unknown, 293 Unchecked, 5.9s Time] [2021-11-20 22:52:54,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2021-11-20 22:52:54,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 251. [2021-11-20 22:52:54,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 251 states, 187 states have (on average 1.3422459893048129) internal successors, (251), 187 states have internal predecessors, (251), 43 states have call successors, (43), 21 states have call predecessors, (43), 20 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2021-11-20 22:52:54,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 251 states to 251 states and 336 transitions. [2021-11-20 22:52:54,451 INFO L78 Accepts]: Start accepts. Automaton has 251 states and 336 transitions. Word has length 60 [2021-11-20 22:52:54,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 22:52:54,452 INFO L470 AbstractCegarLoop]: Abstraction has 251 states and 336 transitions. [2021-11-20 22:52:54,452 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 24 states have (on average 1.125) internal successors, (27), 23 states have internal predecessors, (27), 6 states have call successors, (6), 4 states have call predecessors, (6), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2021-11-20 22:52:54,452 INFO L276 IsEmpty]: Start isEmpty. Operand 251 states and 336 transitions. [2021-11-20 22:52:54,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-11-20 22:52:54,453 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 22:52:54,454 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 22:52:54,478 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6669abe-9aa4-4f3a-8353-445e555e2e5f/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-20 22:52:54,662 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6669abe-9aa4-4f3a-8353-445e555e2e5f/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2021-11-20 22:52:54,662 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 22:52:54,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 22:52:54,662 INFO L85 PathProgramCache]: Analyzing trace with hash 1278000441, now seen corresponding path program 1 times [2021-11-20 22:52:54,662 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 22:52:54,663 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2099676212] [2021-11-20 22:52:54,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 22:52:54,663 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 22:52:54,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 22:52:54,724 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2021-11-20 22:52:54,724 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 22:52:54,724 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2099676212] [2021-11-20 22:52:54,724 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2099676212] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 22:52:54,724 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1001163507] [2021-11-20 22:52:54,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 22:52:54,725 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 22:52:54,725 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6669abe-9aa4-4f3a-8353-445e555e2e5f/bin/utaipan-TEXQjIfE4P/z3 [2021-11-20 22:52:54,729 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6669abe-9aa4-4f3a-8353-445e555e2e5f/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 22:52:54,743 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6669abe-9aa4-4f3a-8353-445e555e2e5f/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-20 22:52:54,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 22:52:54,905 INFO L263 TraceCheckSpWp]: Trace formula consists of 531 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-20 22:52:54,908 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 22:52:55,033 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2021-11-20 22:52:55,034 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 22:52:55,034 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1001163507] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 22:52:55,034 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-20 22:52:55,034 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2021-11-20 22:52:55,035 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [907946981] [2021-11-20 22:52:55,035 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 22:52:55,036 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 22:52:55,036 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 22:52:55,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 22:52:55,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-20 22:52:55,037 INFO L87 Difference]: Start difference. First operand 251 states and 336 transitions. Second operand has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2021-11-20 22:52:55,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 22:52:55,139 INFO L93 Difference]: Finished difference Result 473 states and 638 transitions. [2021-11-20 22:52:55,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 22:52:55,140 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 65 [2021-11-20 22:52:55,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 22:52:55,142 INFO L225 Difference]: With dead ends: 473 [2021-11-20 22:52:55,143 INFO L226 Difference]: Without dead ends: 233 [2021-11-20 22:52:55,144 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-20 22:52:55,145 INFO L933 BasicCegarLoop]: 180 mSDtfsCounter, 78 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 265 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-20 22:52:55,145 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [106 Valid, 265 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-20 22:52:55,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 233 states. [2021-11-20 22:52:55,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 233 to 228. [2021-11-20 22:52:55,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 228 states, 164 states have (on average 1.329268292682927) internal successors, (218), 164 states have internal predecessors, (218), 43 states have call successors, (43), 21 states have call predecessors, (43), 20 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2021-11-20 22:52:55,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 303 transitions. [2021-11-20 22:52:55,179 INFO L78 Accepts]: Start accepts. Automaton has 228 states and 303 transitions. Word has length 65 [2021-11-20 22:52:55,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 22:52:55,180 INFO L470 AbstractCegarLoop]: Abstraction has 228 states and 303 transitions. [2021-11-20 22:52:55,180 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2021-11-20 22:52:55,180 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 303 transitions. [2021-11-20 22:52:55,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2021-11-20 22:52:55,181 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 22:52:55,182 INFO L514 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 22:52:55,215 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6669abe-9aa4-4f3a-8353-445e555e2e5f/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-11-20 22:52:55,403 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6669abe-9aa4-4f3a-8353-445e555e2e5f/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2021-11-20 22:52:55,403 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 22:52:55,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 22:52:55,404 INFO L85 PathProgramCache]: Analyzing trace with hash -274777146, now seen corresponding path program 1 times [2021-11-20 22:52:55,404 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 22:52:55,404 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2124444190] [2021-11-20 22:52:55,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 22:52:55,404 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 22:52:55,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 22:52:55,503 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2021-11-20 22:52:55,504 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 22:52:55,504 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2124444190] [2021-11-20 22:52:55,505 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2124444190] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 22:52:55,505 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [221898917] [2021-11-20 22:52:55,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 22:52:55,506 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 22:52:55,506 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6669abe-9aa4-4f3a-8353-445e555e2e5f/bin/utaipan-TEXQjIfE4P/z3 [2021-11-20 22:52:55,515 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6669abe-9aa4-4f3a-8353-445e555e2e5f/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 22:52:55,516 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6669abe-9aa4-4f3a-8353-445e555e2e5f/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-11-20 22:52:55,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 22:52:55,673 INFO L263 TraceCheckSpWp]: Trace formula consists of 633 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-20 22:52:55,676 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 22:52:55,792 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 29 proven. 1 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2021-11-20 22:52:55,792 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 22:52:55,944 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2021-11-20 22:52:55,944 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [221898917] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-20 22:52:55,944 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [744185305] [2021-11-20 22:52:55,947 INFO L159 IcfgInterpreter]: Started Sifa with 47 locations of interest [2021-11-20 22:52:55,947 INFO L166 IcfgInterpreter]: Building call graph [2021-11-20 22:52:55,948 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-20 22:52:55,948 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-20 22:52:55,948 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-20 22:52:56,044 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 47 [2021-11-20 22:52:56,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:52:56,297 INFO L354 Elim1Store]: treesize reduction 160, result has 47.5 percent of original size [2021-11-20 22:52:56,298 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 17 select indices, 17 select index equivalence classes, 137 disjoint index pairs (out of 136 index pairs), introduced 17 new quantified variables, introduced 16 case distinctions, treesize of input 92 treesize of output 206 [2021-11-20 22:52:56,577 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:52:56,579 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:52:56,837 INFO L354 Elim1Store]: treesize reduction 288, result has 33.5 percent of original size [2021-11-20 22:52:56,837 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 19 select indices, 19 select index equivalence classes, 155 disjoint index pairs (out of 171 index pairs), introduced 19 new quantified variables, introduced 32 case distinctions, treesize of input 102 treesize of output 217 [2021-11-20 22:52:57,040 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 47 [2021-11-20 22:52:57,155 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 16 [2021-11-20 22:52:57,164 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 16 [2021-11-20 22:52:57,314 INFO L388 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 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-20 22:52:57,323 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2021-11-20 22:52:57,344 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 6 [2021-11-20 22:52:57,703 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 16 [2021-11-20 22:52:58,542 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-11-20 22:52:58,568 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2021-11-20 22:52:58,872 INFO L354 Elim1Store]: treesize reduction 20, result has 41.2 percent of original size [2021-11-20 22:52:58,872 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 29 [2021-11-20 22:52:58,913 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 10 [2021-11-20 22:52:59,514 INFO L354 Elim1Store]: treesize reduction 20, result has 41.2 percent of original size [2021-11-20 22:52:59,514 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 234 treesize of output 238 [2021-11-20 22:52:59,529 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:52:59,531 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 239 treesize of output 238 [2021-11-20 22:52:59,553 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:52:59,555 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 235 treesize of output 234 [2021-11-20 22:52:59,616 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:52:59,617 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 199 treesize of output 203 [2021-11-20 22:53:06,513 INFO L354 Elim1Store]: treesize reduction 38, result has 41.5 percent of original size [2021-11-20 22:53:06,513 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 49 treesize of output 58 [2021-11-20 22:53:06,760 INFO L354 Elim1Store]: treesize reduction 26, result has 60.0 percent of original size [2021-11-20 22:53:06,761 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 64 treesize of output 85 [2021-11-20 22:53:07,213 INFO L354 Elim1Store]: treesize reduction 50, result has 41.2 percent of original size [2021-11-20 22:53:07,214 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 36 treesize of output 63 [2021-11-20 22:53:07,467 INFO L354 Elim1Store]: treesize reduction 28, result has 39.1 percent of original size [2021-11-20 22:53:07,468 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 45 treesize of output 42 [2021-11-20 22:53:08,710 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 1 [2021-11-20 22:53:08,732 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 62 treesize of output 49 [2021-11-20 22:53:08,748 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 25 [2021-11-20 22:53:13,051 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-20 22:53:13,086 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2021-11-20 22:53:13,145 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-20 22:53:13,889 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2021-11-20 22:53:14,012 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-20 22:53:14,047 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-20 22:53:23,852 INFO L354 Elim1Store]: treesize reduction 29, result has 60.8 percent of original size [2021-11-20 22:53:23,852 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 56 treesize of output 80 [2021-11-20 22:53:24,080 INFO L354 Elim1Store]: treesize reduction 44, result has 40.5 percent of original size [2021-11-20 22:53:24,081 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 68 treesize of output 77 [2021-11-20 22:53:24,511 INFO L354 Elim1Store]: treesize reduction 62, result has 36.1 percent of original size [2021-11-20 22:53:24,511 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 42 treesize of output 69 [2021-11-20 22:53:24,599 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 22 treesize of output 1 [2021-11-20 22:53:24,952 INFO L354 Elim1Store]: treesize reduction 34, result has 38.2 percent of original size [2021-11-20 22:53:24,952 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 25 [2021-11-20 22:53:26,046 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 62 treesize of output 49 [2021-11-20 22:53:26,061 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 25 [2021-11-20 22:53:26,089 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 1 [2021-11-20 22:53:29,867 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-20 22:53:30,083 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2021-11-20 22:53:30,225 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-20 22:53:30,672 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-20 22:53:30,839 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2021-11-20 22:53:30,969 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-20 22:53:39,697 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-20 22:53:39,824 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-20 22:53:41,467 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-20 22:53:41,561 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-20 22:53:46,911 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:53:46,912 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 550 treesize of output 520 [2021-11-20 22:53:46,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:53:46,937 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 535 treesize of output 503 [2021-11-20 22:53:46,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:53:46,962 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 518 treesize of output 488 [2021-11-20 22:53:46,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:53:46,987 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 503 treesize of output 471 [2021-11-20 22:53:47,187 INFO L354 Elim1Store]: treesize reduction 232, result has 28.6 percent of original size [2021-11-20 22:53:47,188 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 12 case distinctions, treesize of input 486 treesize of output 554 [2021-11-20 22:53:53,937 INFO L354 Elim1Store]: treesize reduction 44, result has 34.3 percent of original size [2021-11-20 22:53:53,938 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 315 treesize of output 301 [2021-11-20 22:53:57,627 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:53:57,652 INFO L354 Elim1Store]: treesize reduction 15, result has 48.3 percent of original size [2021-11-20 22:53:57,653 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 149 treesize of output 149 [2021-11-20 22:53:58,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:53:58,495 INFO L354 Elim1Store]: treesize reduction 45, result has 23.7 percent of original size [2021-11-20 22:53:58,496 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 154 treesize of output 152 [2021-11-20 22:54:03,269 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:54:03,273 INFO L388 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 0 case distinctions, treesize of input 29 treesize of output 33 [2021-11-20 22:54:03,312 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:54:03,314 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:54:03,336 INFO L354 Elim1Store]: treesize reduction 27, result has 48.1 percent of original size [2021-11-20 22:54:03,336 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 42 [2021-11-20 22:54:03,577 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 22:54:03,578 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:54:03,633 INFO L354 Elim1Store]: treesize reduction 139, result has 33.5 percent of original size [2021-11-20 22:54:03,634 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 230 treesize of output 295 [2021-11-20 22:54:03,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:54:03,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:54:03,752 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-20 22:54:03,753 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 63 treesize of output 65 [2021-11-20 22:54:05,550 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:54:05,551 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 44 treesize of output 38 [2021-11-20 22:54:05,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:54:05,714 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:54:05,722 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 41 [2021-11-20 22:54:06,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:54:06,256 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 51 treesize of output 43 [2021-11-20 22:54:06,386 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:54:06,397 INFO L354 Elim1Store]: treesize reduction 30, result has 3.2 percent of original size [2021-11-20 22:54:06,398 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 64 treesize of output 46 [2021-11-20 22:54:07,404 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 22:54:07,406 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:54:07,460 INFO L354 Elim1Store]: treesize reduction 139, result has 33.5 percent of original size [2021-11-20 22:54:07,461 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 230 treesize of output 295 [2021-11-20 22:54:07,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:54:07,555 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 29 treesize of output 23 [2021-11-20 22:54:07,719 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:54:07,720 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:54:07,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:54:07,722 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 28 [2021-11-20 22:54:09,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:54:09,855 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 15 treesize of output 9 [2021-11-20 22:54:09,917 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:54:09,918 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 30 treesize of output 22 [2021-11-20 22:54:10,376 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-20 22:54:11,016 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:54:11,017 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 12 [2021-11-20 22:54:11,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:54:11,137 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 9 [2021-11-20 22:54:11,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:54:11,223 INFO L354 Elim1Store]: treesize reduction 30, result has 3.2 percent of original size [2021-11-20 22:54:11,224 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 43 treesize of output 25 [2021-11-20 22:54:11,870 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:54:11,871 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:54:11,872 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 20 [2021-11-20 22:54:14,006 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:54:14,008 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:54:14,031 INFO L354 Elim1Store]: treesize reduction 27, result has 48.1 percent of original size [2021-11-20 22:54:14,032 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 42 [2021-11-20 22:54:14,206 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:54:14,212 INFO L388 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 0 case distinctions, treesize of input 29 treesize of output 33 [2021-11-20 22:55:09,812 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:55:09,813 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 424 treesize of output 394 [2021-11-20 22:55:09,833 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:55:09,834 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 409 treesize of output 379 [2021-11-20 22:55:09,854 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:55:09,855 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 394 treesize of output 362 [2021-11-20 22:55:09,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:55:09,884 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 22:55:09,965 INFO L354 Elim1Store]: treesize reduction 292, result has 26.4 percent of original size [2021-11-20 22:55:09,965 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 377 treesize of output 447 [2021-11-20 22:55:10,006 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:55:10,007 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 452 treesize of output 408 [2021-11-20 22:55:17,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:55:17,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:55:17,781 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 22:55:17,825 INFO L354 Elim1Store]: treesize reduction 48, result has 42.2 percent of original size [2021-11-20 22:55:17,826 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 244 treesize of output 236 [2021-11-20 22:55:19,624 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:55:19,626 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:55:19,627 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 22:55:19,640 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-20 22:55:19,641 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 51 treesize of output 45 [2021-11-20 22:55:21,608 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:55:21,612 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:55:21,613 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 22:55:21,649 INFO L354 Elim1Store]: treesize reduction 48, result has 42.2 percent of original size [2021-11-20 22:55:21,649 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 215 treesize of output 215 [2021-11-20 22:55:23,036 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:55:23,038 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:55:23,039 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 22:55:23,053 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-20 22:55:23,054 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 59 treesize of output 53 [2021-11-20 22:56:08,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:56:08,760 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 424 treesize of output 394 [2021-11-20 22:56:08,802 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:56:08,802 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 22:56:08,930 INFO L354 Elim1Store]: treesize reduction 292, result has 26.4 percent of original size [2021-11-20 22:56:08,930 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 409 treesize of output 479 [2021-11-20 22:56:08,951 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:56:08,952 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 484 treesize of output 442 [2021-11-20 22:56:08,973 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:56:08,974 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 469 treesize of output 425 [2021-11-20 22:56:09,002 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:56:09,003 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 452 treesize of output 408 [2021-11-20 22:56:12,058 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:56:12,060 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:56:12,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:56:12,066 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 22:56:12,085 INFO L354 Elim1Store]: treesize reduction 25, result has 24.2 percent of original size [2021-11-20 22:56:12,085 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 78 treesize of output 48 [2021-11-20 22:56:12,802 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:56:12,805 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:56:12,805 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 22:56:12,817 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-20 22:56:12,818 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 32 treesize of output 26 [2021-11-20 22:56:13,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:56:13,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:56:13,026 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 22:56:13,027 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:56:13,046 INFO L354 Elim1Store]: treesize reduction 27, result has 22.9 percent of original size [2021-11-20 22:56:13,046 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 78 treesize of output 48 [2021-11-20 22:56:18,385 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:56:18,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:56:18,390 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:56:18,390 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 22:56:18,400 INFO L354 Elim1Store]: treesize reduction 32, result has 3.0 percent of original size [2021-11-20 22:56:18,400 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 64 treesize of output 30 [2021-11-20 22:56:18,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:56:18,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:56:18,681 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 22:56:18,690 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-20 22:56:18,691 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 41 treesize of output 23 [2021-11-20 22:56:18,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:56:18,828 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:56:18,830 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 22:56:18,831 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:56:18,841 INFO L354 Elim1Store]: treesize reduction 34, result has 2.9 percent of original size [2021-11-20 22:56:18,842 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 64 treesize of output 30 [2021-11-20 22:56:19,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:56:19,339 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 11 [2021-11-20 22:56:19,406 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:56:19,409 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:56:19,420 INFO L354 Elim1Store]: treesize reduction 25, result has 3.8 percent of original size [2021-11-20 22:56:19,420 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 44 treesize of output 18 [2021-11-20 22:56:19,837 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:56:19,838 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:56:19,839 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 18 [2021-11-20 22:56:42,609 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 62 treesize of output 49 [2021-11-20 22:56:42,632 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 25 [2021-11-20 22:56:42,673 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 1 [2021-11-20 22:56:43,217 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 1 [2021-11-20 22:56:43,233 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 62 treesize of output 49 [2021-11-20 22:56:43,246 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 25 [2021-11-20 22:56:47,306 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-20 22:56:47,409 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-20 22:56:47,641 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2021-11-20 22:56:47,911 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-20 22:56:47,938 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2021-11-20 22:56:47,976 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-20 22:56:52,818 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 16 [2021-11-20 22:56:52,968 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 16 [2021-11-20 22:56:52,971 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_successful_zalloc with input of size 61 for LOIs [2021-11-20 22:56:53,046 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2021-11-20 22:56:53,110 INFO L388 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 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-20 22:56:55,099 INFO L197 IcfgInterpreter]: Interpreting procedure #Ultimate.meminit with input of size 80 for LOIs [2021-11-20 22:56:55,273 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 62 for LOIs [2021-11-20 22:56:55,373 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_malloc with input of size 75 for LOIs [2021-11-20 22:56:55,893 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-20 22:57:15,406 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSifa [744185305] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 22:57:15,406 INFO L186 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2021-11-20 22:57:15,406 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [42] imperfect sequences [4, 4, 4] total 48 [2021-11-20 22:57:15,407 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1759031548] [2021-11-20 22:57:15,407 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 22:57:15,407 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 43 states [2021-11-20 22:57:15,407 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 22:57:15,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2021-11-20 22:57:15,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=191, Invalid=2065, Unknown=0, NotChecked=0, Total=2256 [2021-11-20 22:57:15,409 INFO L87 Difference]: Start difference. First operand 228 states and 303 transitions. Second operand has 43 states, 34 states have (on average 1.1176470588235294) internal successors, (38), 32 states have internal predecessors, (38), 8 states have call successors, (8), 5 states have call predecessors, (8), 4 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2021-11-20 22:57:32,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 22:57:32,654 INFO L93 Difference]: Finished difference Result 512 states and 689 transitions. [2021-11-20 22:57:32,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2021-11-20 22:57:32,655 INFO L78 Accepts]: Start accepts. Automaton has has 43 states, 34 states have (on average 1.1176470588235294) internal successors, (38), 32 states have internal predecessors, (38), 8 states have call successors, (8), 5 states have call predecessors, (8), 4 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) Word has length 77 [2021-11-20 22:57:32,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 22:57:32,658 INFO L225 Difference]: With dead ends: 512 [2021-11-20 22:57:32,658 INFO L226 Difference]: Without dead ends: 306 [2021-11-20 22:57:32,660 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 247 GetRequests, 184 SyntacticMatches, 3 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1144 ImplicationChecksByTransitivity, 32.3s TimeCoverageRelationStatistics Valid=337, Invalid=3445, Unknown=0, NotChecked=0, Total=3782 [2021-11-20 22:57:32,660 INFO L933 BasicCegarLoop]: 160 mSDtfsCounter, 100 mSDsluCounter, 2341 mSDsCounter, 0 mSdLazyCounter, 2728 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 2250 SdHoareTripleChecker+Invalid, 2801 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 2728 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2021-11-20 22:57:32,661 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [107 Valid, 2250 Invalid, 2801 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 2728 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2021-11-20 22:57:32,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 306 states. [2021-11-20 22:57:32,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 306 to 270. [2021-11-20 22:57:32,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 270 states, 191 states have (on average 1.287958115183246) internal successors, (246), 191 states have internal predecessors, (246), 54 states have call successors, (54), 25 states have call predecessors, (54), 24 states have return successors, (54), 53 states have call predecessors, (54), 53 states have call successors, (54) [2021-11-20 22:57:32,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 270 states and 354 transitions. [2021-11-20 22:57:32,716 INFO L78 Accepts]: Start accepts. Automaton has 270 states and 354 transitions. Word has length 77 [2021-11-20 22:57:32,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 22:57:32,716 INFO L470 AbstractCegarLoop]: Abstraction has 270 states and 354 transitions. [2021-11-20 22:57:32,717 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 43 states, 34 states have (on average 1.1176470588235294) internal successors, (38), 32 states have internal predecessors, (38), 8 states have call successors, (8), 5 states have call predecessors, (8), 4 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2021-11-20 22:57:32,717 INFO L276 IsEmpty]: Start isEmpty. Operand 270 states and 354 transitions. [2021-11-20 22:57:32,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2021-11-20 22:57:32,719 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 22:57:32,720 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 22:57:32,754 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6669abe-9aa4-4f3a-8353-445e555e2e5f/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-11-20 22:57:32,934 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6669abe-9aa4-4f3a-8353-445e555e2e5f/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 22:57:32,935 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 22:57:32,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 22:57:32,935 INFO L85 PathProgramCache]: Analyzing trace with hash 1124505269, now seen corresponding path program 1 times [2021-11-20 22:57:32,935 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 22:57:32,935 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [73227224] [2021-11-20 22:57:32,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 22:57:32,935 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 22:57:32,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 22:57:33,061 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2021-11-20 22:57:33,061 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 22:57:33,061 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [73227224] [2021-11-20 22:57:33,062 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [73227224] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 22:57:33,062 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [553599773] [2021-11-20 22:57:33,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 22:57:33,062 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 22:57:33,062 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6669abe-9aa4-4f3a-8353-445e555e2e5f/bin/utaipan-TEXQjIfE4P/z3 [2021-11-20 22:57:33,067 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6669abe-9aa4-4f3a-8353-445e555e2e5f/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 22:57:33,086 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6669abe-9aa4-4f3a-8353-445e555e2e5f/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-11-20 22:57:33,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 22:57:33,285 INFO L263 TraceCheckSpWp]: Trace formula consists of 735 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-20 22:57:33,289 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 22:57:33,455 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 37 proven. 1 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-20 22:57:33,455 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 22:57:33,666 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2021-11-20 22:57:33,666 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [553599773] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-20 22:57:33,666 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1550329784] [2021-11-20 22:57:33,669 INFO L159 IcfgInterpreter]: Started Sifa with 60 locations of interest [2021-11-20 22:57:33,669 INFO L166 IcfgInterpreter]: Building call graph [2021-11-20 22:57:33,670 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-20 22:57:33,670 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-20 22:57:33,670 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-20 22:57:33,759 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 47 [2021-11-20 22:57:33,796 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 47 [2021-11-20 22:57:33,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:57:34,072 INFO L354 Elim1Store]: treesize reduction 160, result has 47.5 percent of original size [2021-11-20 22:57:34,073 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 17 select indices, 17 select index equivalence classes, 137 disjoint index pairs (out of 136 index pairs), introduced 17 new quantified variables, introduced 16 case distinctions, treesize of input 92 treesize of output 206 [2021-11-20 22:57:34,277 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:57:34,278 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:57:34,533 INFO L354 Elim1Store]: treesize reduction 288, result has 33.5 percent of original size [2021-11-20 22:57:34,534 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 19 select indices, 19 select index equivalence classes, 155 disjoint index pairs (out of 171 index pairs), introduced 19 new quantified variables, introduced 32 case distinctions, treesize of input 102 treesize of output 217 [2021-11-20 22:57:34,803 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 16 [2021-11-20 22:57:34,804 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 16 [2021-11-20 22:57:34,934 INFO L388 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 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-20 22:57:34,943 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2021-11-20 22:57:34,962 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 6 [2021-11-20 22:57:35,332 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 16 [2021-11-20 22:57:36,265 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-11-20 22:57:36,390 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2021-11-20 22:57:36,426 INFO L354 Elim1Store]: treesize reduction 20, result has 41.2 percent of original size [2021-11-20 22:57:36,427 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 29 [2021-11-20 22:57:36,449 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 10 [2021-11-20 22:57:36,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:57:36,709 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 234 treesize of output 233 [2021-11-20 22:57:36,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:57:36,723 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 230 treesize of output 229 [2021-11-20 22:57:36,758 INFO L354 Elim1Store]: treesize reduction 20, result has 41.2 percent of original size [2021-11-20 22:57:36,758 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 226 treesize of output 230 [2021-11-20 22:57:36,895 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 10 [2021-11-20 22:57:43,257 INFO L354 Elim1Store]: treesize reduction 44, result has 40.5 percent of original size [2021-11-20 22:57:43,257 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 58 treesize of output 67 [2021-11-20 22:57:43,596 INFO L354 Elim1Store]: treesize reduction 29, result has 60.8 percent of original size [2021-11-20 22:57:43,596 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 73 treesize of output 97 [2021-11-20 22:57:43,969 INFO L354 Elim1Store]: treesize reduction 62, result has 36.1 percent of original size [2021-11-20 22:57:43,969 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 42 treesize of output 69 [2021-11-20 22:57:44,073 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 22 treesize of output 1 [2021-11-20 22:57:44,252 INFO L354 Elim1Store]: treesize reduction 34, result has 38.2 percent of original size [2021-11-20 22:57:44,252 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 25 [2021-11-20 22:57:45,197 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 1 [2021-11-20 22:57:45,214 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 62 treesize of output 49 [2021-11-20 22:57:45,226 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 25 [2021-11-20 22:57:49,288 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2021-11-20 22:57:49,384 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-20 22:57:49,512 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-20 22:57:50,041 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-20 22:57:50,106 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2021-11-20 22:57:50,231 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-20 22:57:59,314 INFO L354 Elim1Store]: treesize reduction 38, result has 41.5 percent of original size [2021-11-20 22:57:59,314 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 49 treesize of output 58 [2021-11-20 22:57:59,600 INFO L354 Elim1Store]: treesize reduction 26, result has 60.0 percent of original size [2021-11-20 22:57:59,600 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 59 treesize of output 80 [2021-11-20 22:57:59,959 INFO L354 Elim1Store]: treesize reduction 50, result has 41.2 percent of original size [2021-11-20 22:57:59,959 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 36 treesize of output 63 [2021-11-20 22:58:00,100 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 1 [2021-11-20 22:58:00,328 INFO L354 Elim1Store]: treesize reduction 39, result has 15.2 percent of original size [2021-11-20 22:58:00,329 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 11 [2021-11-20 22:58:01,789 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 62 treesize of output 49 [2021-11-20 22:58:01,802 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 25 [2021-11-20 22:58:01,825 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 1 [2021-11-20 22:58:05,514 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2021-11-20 22:58:05,960 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-20 22:58:06,050 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-20 22:58:06,479 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2021-11-20 22:58:06,676 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-20 22:58:06,926 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-20 22:58:31,146 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-20 22:58:31,190 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 40 [2021-11-20 22:58:31,209 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 19 [2021-11-20 22:58:31,911 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 1 [2021-11-20 22:58:31,932 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 62 treesize of output 49 [2021-11-20 22:58:31,947 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 25 [2021-11-20 22:58:35,512 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-20 22:58:35,617 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2021-11-20 22:58:35,761 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-20 22:58:36,299 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-20 22:58:36,325 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-20 22:58:36,777 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2021-11-20 22:58:42,034 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 16 [2021-11-20 22:58:42,180 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 16 [2021-11-20 22:58:42,183 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_alloc_skb_14 with input of size 103 for LOIs [2021-11-20 22:58:43,040 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_skb_alloc with input of size 94 for LOIs [2021-11-20 22:58:44,810 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_successful_zalloc with input of size 115 for LOIs [2021-11-20 22:58:45,014 INFO L388 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 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-20 22:58:45,077 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2021-11-20 22:58:46,932 INFO L197 IcfgInterpreter]: Interpreting procedure #Ultimate.meminit with input of size 80 for LOIs [2021-11-20 22:58:47,119 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 77 for LOIs [2021-11-20 22:58:47,266 INFO L197 IcfgInterpreter]: Interpreting procedure netdev_priv with input of size 84 for LOIs [2021-11-20 22:58:47,480 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-20 22:59:07,501 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSifa [1550329784] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 22:59:07,501 INFO L186 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2021-11-20 22:59:07,501 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [46] imperfect sequences [4, 4, 4] total 52 [2021-11-20 22:59:07,502 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2144150930] [2021-11-20 22:59:07,502 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 22:59:07,502 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 47 states [2021-11-20 22:59:07,503 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 22:59:07,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2021-11-20 22:59:07,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=166, Invalid=2486, Unknown=0, NotChecked=0, Total=2652 [2021-11-20 22:59:07,504 INFO L87 Difference]: Start difference. First operand 270 states and 354 transitions. Second operand has 47 states, 36 states have (on average 1.3055555555555556) internal successors, (47), 35 states have internal predecessors, (47), 10 states have call successors, (10), 7 states have call predecessors, (10), 5 states have return successors, (9), 8 states have call predecessors, (9), 9 states have call successors, (9) [2021-11-20 22:59:21,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 22:59:21,264 INFO L93 Difference]: Finished difference Result 622 states and 818 transitions. [2021-11-20 22:59:21,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2021-11-20 22:59:21,264 INFO L78 Accepts]: Start accepts. Automaton has has 47 states, 36 states have (on average 1.3055555555555556) internal successors, (47), 35 states have internal predecessors, (47), 10 states have call successors, (10), 7 states have call predecessors, (10), 5 states have return successors, (9), 8 states have call predecessors, (9), 9 states have call successors, (9) Word has length 98 [2021-11-20 22:59:21,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 22:59:21,267 INFO L225 Difference]: With dead ends: 622 [2021-11-20 22:59:21,267 INFO L226 Difference]: Without dead ends: 376 [2021-11-20 22:59:21,270 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 306 GetRequests, 242 SyntacticMatches, 4 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1134 ImplicationChecksByTransitivity, 28.2s TimeCoverageRelationStatistics Valid=222, Invalid=3560, Unknown=0, NotChecked=0, Total=3782 [2021-11-20 22:59:21,270 INFO L933 BasicCegarLoop]: 152 mSDtfsCounter, 67 mSDsluCounter, 2801 mSDsCounter, 0 mSdLazyCounter, 3320 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 2690 SdHoareTripleChecker+Invalid, 3500 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 3320 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 132 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2021-11-20 22:59:21,271 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [74 Valid, 2690 Invalid, 3500 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 3320 Invalid, 0 Unknown, 132 Unchecked, 5.4s Time] [2021-11-20 22:59:21,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 376 states. [2021-11-20 22:59:21,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 376 to 349. [2021-11-20 22:59:21,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 349 states, 248 states have (on average 1.278225806451613) internal successors, (317), 251 states have internal predecessors, (317), 67 states have call successors, (67), 35 states have call predecessors, (67), 33 states have return successors, (68), 62 states have call predecessors, (68), 66 states have call successors, (68) [2021-11-20 22:59:21,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 349 states and 452 transitions. [2021-11-20 22:59:21,340 INFO L78 Accepts]: Start accepts. Automaton has 349 states and 452 transitions. Word has length 98 [2021-11-20 22:59:21,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 22:59:21,341 INFO L470 AbstractCegarLoop]: Abstraction has 349 states and 452 transitions. [2021-11-20 22:59:21,341 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 47 states, 36 states have (on average 1.3055555555555556) internal successors, (47), 35 states have internal predecessors, (47), 10 states have call successors, (10), 7 states have call predecessors, (10), 5 states have return successors, (9), 8 states have call predecessors, (9), 9 states have call successors, (9) [2021-11-20 22:59:21,341 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states and 452 transitions. [2021-11-20 22:59:21,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2021-11-20 22:59:21,343 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 22:59:21,343 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 22:59:21,377 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6669abe-9aa4-4f3a-8353-445e555e2e5f/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-11-20 22:59:21,570 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6669abe-9aa4-4f3a-8353-445e555e2e5f/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 22:59:21,570 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 22:59:21,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 22:59:21,571 INFO L85 PathProgramCache]: Analyzing trace with hash -536671563, now seen corresponding path program 1 times [2021-11-20 22:59:21,571 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 22:59:21,571 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1130961157] [2021-11-20 22:59:21,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 22:59:21,571 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 22:59:21,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 22:59:21,667 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2021-11-20 22:59:21,667 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 22:59:21,667 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1130961157] [2021-11-20 22:59:21,667 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1130961157] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 22:59:21,667 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1593918262] [2021-11-20 22:59:21,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 22:59:21,668 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 22:59:21,668 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6669abe-9aa4-4f3a-8353-445e555e2e5f/bin/utaipan-TEXQjIfE4P/z3 [2021-11-20 22:59:21,669 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6669abe-9aa4-4f3a-8353-445e555e2e5f/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 22:59:21,693 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6669abe-9aa4-4f3a-8353-445e555e2e5f/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-11-20 22:59:21,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 22:59:21,895 INFO L263 TraceCheckSpWp]: Trace formula consists of 758 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-20 22:59:21,899 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 22:59:22,041 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 37 proven. 1 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-20 22:59:22,041 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 22:59:22,237 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2021-11-20 22:59:22,237 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1593918262] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-20 22:59:22,237 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1565060484] [2021-11-20 22:59:22,240 INFO L159 IcfgInterpreter]: Started Sifa with 62 locations of interest [2021-11-20 22:59:22,240 INFO L166 IcfgInterpreter]: Building call graph [2021-11-20 22:59:22,241 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-20 22:59:22,241 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-20 22:59:22,241 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-20 22:59:22,339 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:59:22,341 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:59:22,625 INFO L354 Elim1Store]: treesize reduction 288, result has 33.5 percent of original size [2021-11-20 22:59:22,625 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 19 select indices, 19 select index equivalence classes, 155 disjoint index pairs (out of 171 index pairs), introduced 19 new quantified variables, introduced 32 case distinctions, treesize of input 102 treesize of output 217 [2021-11-20 22:59:22,834 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:59:22,836 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 17 select indices, 17 select index equivalence classes, 153 disjoint index pairs (out of 136 index pairs), introduced 17 new quantified variables, introduced 0 case distinctions, treesize of input 92 treesize of output 142 [2021-11-20 22:59:22,962 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 47 [2021-11-20 22:59:23,034 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 47 [2021-11-20 22:59:23,705 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2021-11-20 22:59:23,711 INFO L388 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 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-20 22:59:23,731 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 6 [2021-11-20 22:59:23,967 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:59:23,968 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:59:23,968 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:59:23,969 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 17 select indices, 17 select index equivalence classes, 32 disjoint index pairs (out of 136 index pairs), introduced 17 new quantified variables, introduced 0 case distinctions, treesize of input 124 treesize of output 52 [2021-11-20 22:59:24,007 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:59:24,008 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 18 select indices, 18 select index equivalence classes, 153 disjoint index pairs (out of 153 index pairs), introduced 18 new quantified variables, introduced 0 case distinctions, treesize of input 91 treesize of output 55 [2021-11-20 22:59:24,060 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:59:24,061 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:59:24,067 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 19 select indices, 19 select index equivalence classes, 171 disjoint index pairs (out of 171 index pairs), introduced 19 new quantified variables, introduced 0 case distinctions, treesize of input 96 treesize of output 58 [2021-11-20 22:59:24,952 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:59:24,952 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:59:24,954 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 19 select indices, 19 select index equivalence classes, 171 disjoint index pairs (out of 171 index pairs), introduced 19 new quantified variables, introduced 0 case distinctions, treesize of input 96 treesize of output 58 [2021-11-20 22:59:24,985 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:59:24,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:59:24,987 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:59:24,987 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 17 select indices, 17 select index equivalence classes, 32 disjoint index pairs (out of 136 index pairs), introduced 17 new quantified variables, introduced 0 case distinctions, treesize of input 124 treesize of output 52 [2021-11-20 22:59:25,009 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:59:25,010 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 18 select indices, 18 select index equivalence classes, 153 disjoint index pairs (out of 153 index pairs), introduced 18 new quantified variables, introduced 0 case distinctions, treesize of input 91 treesize of output 55 [2021-11-20 22:59:25,836 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:59:25,837 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:59:25,837 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:59:25,838 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 61 [2021-11-20 22:59:25,850 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 63 treesize of output 62 [2021-11-20 22:59:25,977 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:59:25,978 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 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 21 treesize of output 21 [2021-11-20 22:59:25,990 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 18 treesize of output 17 [2021-11-20 22:59:26,175 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:59:26,176 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:59:26,176 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:59:26,177 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 68 treesize of output 63 [2021-11-20 22:59:26,211 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 65 treesize of output 64 [2021-11-20 22:59:26,776 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:59:26,825 INFO L354 Elim1Store]: treesize reduction 60, result has 15.5 percent of original size [2021-11-20 22:59:26,826 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 692 treesize of output 673 [2021-11-20 22:59:26,891 INFO L354 Elim1Store]: treesize reduction 29, result has 14.7 percent of original size [2021-11-20 22:59:26,892 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 687 treesize of output 683 [2021-11-20 22:59:26,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:59:26,971 INFO L354 Elim1Store]: treesize reduction 56, result has 16.4 percent of original size [2021-11-20 22:59:26,972 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 682 treesize of output 663 [2021-11-20 22:59:27,008 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:59:27,009 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 677 treesize of output 681 [2021-11-20 22:59:27,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:59:27,046 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 678 treesize of output 682 [2021-11-20 22:59:27,082 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:59:27,084 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 679 treesize of output 683 [2021-11-20 22:59:38,516 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:59:38,594 INFO L354 Elim1Store]: treesize reduction 42, result has 45.5 percent of original size [2021-11-20 22:59:38,595 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 36 treesize of output 63 [2021-11-20 22:59:38,828 INFO L354 Elim1Store]: treesize reduction 28, result has 39.1 percent of original size [2021-11-20 22:59:38,829 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 45 treesize of output 42 [2021-11-20 22:59:39,315 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:59:39,316 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:59:39,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:59:39,401 INFO L354 Elim1Store]: treesize reduction 45, result has 53.6 percent of original size [2021-11-20 22:59:39,401 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 98 treesize of output 130 [2021-11-20 22:59:39,928 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 27 [2021-11-20 22:59:40,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:59:40,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:59:40,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:59:40,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:59:40,145 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:59:40,146 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:59:40,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:59:40,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:59:40,150 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:59:40,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:59:40,375 INFO L354 Elim1Store]: treesize reduction 110, result has 53.4 percent of original size [2021-11-20 22:59:40,375 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 10 case distinctions, treesize of input 67 treesize of output 167 [2021-11-20 22:59:48,034 INFO L354 Elim1Store]: treesize reduction 42, result has 20.8 percent of original size [2021-11-20 22:59:48,035 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 40 treesize of output 40 [2021-11-20 22:59:54,602 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:59:54,603 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:59:54,605 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:59:54,723 INFO L354 Elim1Store]: treesize reduction 49, result has 49.5 percent of original size [2021-11-20 22:59:54,723 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 488 treesize of output 504 [2021-11-20 22:59:58,516 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:59:58,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:59:58,518 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:59:58,519 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:59:58,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:59:58,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:59:58,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:59:58,522 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:59:58,523 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:59:58,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:59:58,525 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:59:58,526 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:59:58,527 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:59:58,528 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:59:58,529 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:59:58,771 INFO L354 Elim1Store]: treesize reduction 132, result has 54.2 percent of original size [2021-11-20 22:59:58,771 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 15 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 12 case distinctions, treesize of input 530 treesize of output 631 [2021-11-20 23:00:27,183 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 7 [2021-11-20 23:00:27,214 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 7 [2021-11-20 23:00:27,577 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 1 [2021-11-20 23:00:27,598 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 62 treesize of output 49 [2021-11-20 23:00:27,613 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 25 [2021-11-20 23:00:31,984 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2021-11-20 23:00:32,056 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-20 23:00:32,411 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-20 23:00:33,001 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-20 23:00:33,346 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2021-11-20 23:00:33,512 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-20 23:00:47,481 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:00:47,567 INFO L354 Elim1Store]: treesize reduction 54, result has 39.3 percent of original size [2021-11-20 23:00:47,568 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 42 treesize of output 69 [2021-11-20 23:00:47,846 INFO L354 Elim1Store]: treesize reduction 34, result has 38.2 percent of original size [2021-11-20 23:00:47,846 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 25 [2021-11-20 23:00:47,961 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 22 treesize of output 1 [2021-11-20 23:00:48,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:00:48,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:00:48,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:00:48,546 INFO L354 Elim1Store]: treesize reduction 58, result has 45.3 percent of original size [2021-11-20 23:00:48,546 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 109 treesize of output 137 [2021-11-20 23:00:49,162 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:00:49,164 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:00:49,165 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:00:49,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:00:49,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:00:49,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:00:49,171 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:00:49,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:00:49,174 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:00:49,177 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:00:49,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:00:49,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:00:49,182 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:00:49,183 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:00:49,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:00:49,445 INFO L354 Elim1Store]: treesize reduction 160, result has 53.2 percent of original size [2021-11-20 23:00:49,445 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 15 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 12 case distinctions, treesize of input 108 treesize of output 256 [2021-11-20 23:00:56,179 INFO L354 Elim1Store]: treesize reduction 25, result has 59.7 percent of original size [2021-11-20 23:00:56,180 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 73 treesize of output 96 [2021-11-20 23:01:02,208 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:01:02,209 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:01:02,210 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:01:02,319 INFO L354 Elim1Store]: treesize reduction 54, result has 49.1 percent of original size [2021-11-20 23:01:02,319 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 554 treesize of output 574 [2021-11-20 23:01:05,031 INFO L388 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 0 case distinctions, treesize of input 13 treesize of output 12 [2021-11-20 23:01:05,399 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:01:05,400 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 1 [2021-11-20 23:01:10,781 INFO L354 Elim1Store]: treesize reduction 44, result has 24.1 percent of original size [2021-11-20 23:01:10,781 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 241 treesize of output 229 [2021-11-20 23:01:11,271 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-20 23:01:16,594 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:01:16,595 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:01:16,596 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:01:16,611 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:01:16,614 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:01:16,615 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:01:16,616 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:01:16,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:01:16,619 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:01:16,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:01:16,817 INFO L354 Elim1Store]: treesize reduction 105, result has 59.8 percent of original size [2021-11-20 23:01:16,817 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 7 new quantified variables, introduced 10 case distinctions, treesize of input 551 treesize of output 653 [2021-11-20 23:01:27,081 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 9 [2021-11-20 23:01:27,181 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 9 [2021-11-20 23:01:27,475 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 62 treesize of output 49 [2021-11-20 23:01:27,492 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 25 [2021-11-20 23:01:27,524 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 1 [2021-11-20 23:01:32,125 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-20 23:01:32,364 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-20 23:01:32,487 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2021-11-20 23:01:33,125 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-20 23:01:33,252 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2021-11-20 23:01:33,408 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-20 23:01:46,209 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2021-11-20 23:01:46,220 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2021-11-20 23:01:46,272 INFO L354 Elim1Store]: treesize reduction 27, result has 40.0 percent of original size [2021-11-20 23:01:46,272 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 32 treesize of output 44 [2021-11-20 23:01:46,292 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 22 treesize of output 1 [2021-11-20 23:01:46,667 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-20 23:01:46,997 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-20 23:01:47,026 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2021-11-20 23:01:47,990 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-20 23:01:48,298 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2021-11-20 23:01:48,343 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-20 23:01:50,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:01:50,987 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-20 23:01:51,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:01:51,193 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-20 23:01:51,724 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1