./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-validator-v0.6/linux-stable-1b0b0ac-1-108_1a-drivers--net--slip.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3048131f-77ef-4757-8181-1043bf60d3a3/bin/utaipan-eEHZpOm5b7/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3048131f-77ef-4757-8181-1043bf60d3a3/bin/utaipan-eEHZpOm5b7/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3048131f-77ef-4757-8181-1043bf60d3a3/bin/utaipan-eEHZpOm5b7/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3048131f-77ef-4757-8181-1043bf60d3a3/bin/utaipan-eEHZpOm5b7/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-validator-v0.6/linux-stable-1b0b0ac-1-108_1a-drivers--net--slip.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3048131f-77ef-4757-8181-1043bf60d3a3/bin/utaipan-eEHZpOm5b7/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3048131f-77ef-4757-8181-1043bf60d3a3/bin/utaipan-eEHZpOm5b7 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 6063bfeeaa4a025ac67d1a7a9b5cc20b489e34fc9db0d4dd9fcdda86c75b9c5e --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-11-25 20:19:30,314 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-25 20:19:30,318 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-25 20:19:30,372 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-25 20:19:30,373 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-25 20:19:30,377 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-25 20:19:30,379 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-25 20:19:30,382 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-25 20:19:30,385 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-25 20:19:30,392 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-25 20:19:30,393 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-25 20:19:30,395 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-25 20:19:30,396 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-25 20:19:30,399 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-25 20:19:30,401 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-25 20:19:30,407 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-25 20:19:30,410 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-25 20:19:30,411 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-25 20:19:30,413 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-25 20:19:30,421 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-25 20:19:30,423 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-25 20:19:30,425 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-25 20:19:30,428 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-25 20:19:30,429 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-25 20:19:30,440 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-25 20:19:30,440 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-25 20:19:30,440 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-25 20:19:30,442 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-25 20:19:30,443 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-25 20:19:30,444 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-25 20:19:30,445 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-25 20:19:30,446 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-25 20:19:30,447 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-25 20:19:30,448 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-25 20:19:30,450 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-25 20:19:30,450 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-25 20:19:30,451 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-25 20:19:30,451 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-25 20:19:30,451 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-25 20:19:30,452 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-25 20:19:30,453 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-25 20:19:30,454 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3048131f-77ef-4757-8181-1043bf60d3a3/bin/utaipan-eEHZpOm5b7/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-25 20:19:30,497 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-25 20:19:30,497 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-25 20:19:30,498 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-25 20:19:30,498 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-25 20:19:30,505 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-25 20:19:30,505 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-25 20:19:30,505 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-25 20:19:30,505 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-25 20:19:30,506 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-25 20:19:30,506 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-25 20:19:30,507 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-25 20:19:30,507 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-25 20:19:30,507 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-25 20:19:30,507 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-25 20:19:30,508 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-25 20:19:30,508 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-25 20:19:30,508 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-25 20:19:30,508 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-25 20:19:30,509 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-25 20:19:30,509 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-25 20:19:30,509 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-25 20:19:30,510 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-25 20:19:30,510 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-25 20:19:30,510 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-25 20:19:30,510 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-25 20:19:30,510 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-25 20:19:30,512 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-25 20:19:30,512 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-25 20:19:30,512 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-25 20:19:30,512 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 20:19:30,513 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-25 20:19:30,513 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-25 20:19:30,513 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-25 20:19:30,513 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-25 20:19:30,514 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-25 20:19:30,514 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-25 20:19:30,514 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-25 20:19:30,514 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-25 20:19:30,514 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_3048131f-77ef-4757-8181-1043bf60d3a3/bin/utaipan-eEHZpOm5b7/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3048131f-77ef-4757-8181-1043bf60d3a3/bin/utaipan-eEHZpOm5b7 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6063bfeeaa4a025ac67d1a7a9b5cc20b489e34fc9db0d4dd9fcdda86c75b9c5e [2021-11-25 20:19:30,781 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-25 20:19:30,804 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-25 20:19:30,815 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-25 20:19:30,816 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-25 20:19:30,817 INFO L275 PluginConnector]: CDTParser initialized [2021-11-25 20:19:30,818 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3048131f-77ef-4757-8181-1043bf60d3a3/bin/utaipan-eEHZpOm5b7/../../sv-benchmarks/c/ldv-validator-v0.6/linux-stable-1b0b0ac-1-108_1a-drivers--net--slip.ko-entry_point.cil.out.i [2021-11-25 20:19:30,898 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3048131f-77ef-4757-8181-1043bf60d3a3/bin/utaipan-eEHZpOm5b7/data/4b9f00a10/97fac77796e842efb889bfa6fae0940f/FLAG1a72c6831 [2021-11-25 20:19:31,806 INFO L306 CDTParser]: Found 1 translation units. [2021-11-25 20:19:31,807 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3048131f-77ef-4757-8181-1043bf60d3a3/sv-benchmarks/c/ldv-validator-v0.6/linux-stable-1b0b0ac-1-108_1a-drivers--net--slip.ko-entry_point.cil.out.i [2021-11-25 20:19:31,854 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3048131f-77ef-4757-8181-1043bf60d3a3/bin/utaipan-eEHZpOm5b7/data/4b9f00a10/97fac77796e842efb889bfa6fae0940f/FLAG1a72c6831 [2021-11-25 20:19:32,260 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3048131f-77ef-4757-8181-1043bf60d3a3/bin/utaipan-eEHZpOm5b7/data/4b9f00a10/97fac77796e842efb889bfa6fae0940f [2021-11-25 20:19:32,263 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-25 20:19:32,264 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-25 20:19:32,265 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-25 20:19:32,265 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-25 20:19:32,269 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-25 20:19:32,269 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:19:32" (1/1) ... [2021-11-25 20:19:32,271 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5459de36 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:19:32, skipping insertion in model container [2021-11-25 20:19:32,271 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:19:32" (1/1) ... [2021-11-25 20:19:32,277 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-25 20:19:32,420 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-25 20:19:33,080 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_3048131f-77ef-4757-8181-1043bf60d3a3/sv-benchmarks/c/ldv-validator-v0.6/linux-stable-1b0b0ac-1-108_1a-drivers--net--slip.ko-entry_point.cil.out.i[139152,139165] [2021-11-25 20:19:34,023 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 20:19:34,041 INFO L203 MainTranslator]: Completed pre-run [2021-11-25 20:19:34,216 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_3048131f-77ef-4757-8181-1043bf60d3a3/sv-benchmarks/c/ldv-validator-v0.6/linux-stable-1b0b0ac-1-108_1a-drivers--net--slip.ko-entry_point.cil.out.i[139152,139165] [2021-11-25 20:19:34,512 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 20:19:34,625 INFO L208 MainTranslator]: Completed translation [2021-11-25 20:19:34,626 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:19:34 WrapperNode [2021-11-25 20:19:34,626 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-25 20:19:34,627 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-25 20:19:34,627 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-25 20:19:34,627 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-25 20:19:34,634 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:19:34" (1/1) ... [2021-11-25 20:19:34,725 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:19:34" (1/1) ... [2021-11-25 20:19:34,863 INFO L137 Inliner]: procedures = 184, calls = 828, calls flagged for inlining = 92, calls inlined = 90, statements flattened = 3179 [2021-11-25 20:19:34,864 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-25 20:19:34,865 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-25 20:19:34,865 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-25 20:19:34,865 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-25 20:19:34,873 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:19:34" (1/1) ... [2021-11-25 20:19:34,874 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:19:34" (1/1) ... [2021-11-25 20:19:34,891 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:19:34" (1/1) ... [2021-11-25 20:19:34,892 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:19:34" (1/1) ... [2021-11-25 20:19:34,980 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:19:34" (1/1) ... [2021-11-25 20:19:35,009 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:19:34" (1/1) ... [2021-11-25 20:19:35,035 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:19:34" (1/1) ... [2021-11-25 20:19:35,070 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-25 20:19:35,071 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-25 20:19:35,072 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-25 20:19:35,072 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-25 20:19:35,073 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:19:34" (1/1) ... [2021-11-25 20:19:35,088 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 20:19:35,099 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3048131f-77ef-4757-8181-1043bf60d3a3/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:19:35,110 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3048131f-77ef-4757-8181-1043bf60d3a3/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-25 20:19:35,138 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3048131f-77ef-4757-8181-1043bf60d3a3/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-25 20:19:35,160 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int_nonpositive [2021-11-25 20:19:35,160 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int_nonpositive [2021-11-25 20:19:35,160 INFO L130 BoogieDeclarations]: Found specification of procedure sl_tx_timeout [2021-11-25 20:19:35,160 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_tx_timeout [2021-11-25 20:19:35,161 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-25 20:19:35,161 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2021-11-25 20:19:35,161 INFO L130 BoogieDeclarations]: Found specification of procedure activate_pending_timer_1 [2021-11-25 20:19:35,161 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_pending_timer_1 [2021-11-25 20:19:35,161 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-25 20:19:35,161 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-25 20:19:35,161 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-25 20:19:35,162 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-25 20:19:35,162 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-25 20:19:35,162 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2021-11-25 20:19:35,162 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2021-11-25 20:19:35,162 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2021-11-25 20:19:35,162 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2021-11-25 20:19:35,163 INFO L130 BoogieDeclarations]: Found specification of procedure slhc_free [2021-11-25 20:19:35,163 INFO L138 BoogieDeclarations]: Found implementation of procedure slhc_free [2021-11-25 20:19:35,163 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-25 20:19:35,163 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-25 20:19:35,163 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2021-11-25 20:19:35,163 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2021-11-25 20:19:35,163 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-25 20:19:35,164 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-25 20:19:35,164 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-11-25 20:19:35,164 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-11-25 20:19:35,164 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_unlock [2021-11-25 20:19:35,164 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_unlock [2021-11-25 20:19:35,164 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-25 20:19:35,164 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-25 20:19:35,165 INFO L130 BoogieDeclarations]: Found specification of procedure sl_free_bufs [2021-11-25 20:19:35,165 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_free_bufs [2021-11-25 20:19:35,165 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-25 20:19:35,165 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-11-25 20:19:35,166 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-11-25 20:19:35,166 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-25 20:19:35,166 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-25 20:19:35,166 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2021-11-25 20:19:35,166 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2021-11-25 20:19:35,167 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-25 20:19:35,167 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-25 20:19:35,167 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-11-25 20:19:35,167 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-11-25 20:19:35,167 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer [2021-11-25 20:19:35,167 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer [2021-11-25 20:19:35,167 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-25 20:19:35,168 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_timer_1 [2021-11-25 20:19:35,168 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_timer_1 [2021-11-25 20:19:35,169 INFO L130 BoogieDeclarations]: Found specification of procedure sl_bump [2021-11-25 20:19:35,169 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_bump [2021-11-25 20:19:35,170 INFO L130 BoogieDeclarations]: Found specification of procedure slip_ioctl [2021-11-25 20:19:35,170 INFO L138 BoogieDeclarations]: Found implementation of procedure slip_ioctl [2021-11-25 20:19:35,170 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-25 20:19:35,171 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2021-11-25 20:19:35,171 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2021-11-25 20:19:35,171 INFO L130 BoogieDeclarations]: Found specification of procedure slip_close [2021-11-25 20:19:35,171 INFO L138 BoogieDeclarations]: Found implementation of procedure slip_close [2021-11-25 20:19:35,171 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-25 20:19:35,172 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-25 20:19:35,172 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-25 20:19:35,172 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_1 [2021-11-25 20:19:35,172 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_1 [2021-11-25 20:19:35,173 INFO L130 BoogieDeclarations]: Found specification of procedure slip_compat_ioctl [2021-11-25 20:19:35,173 INFO L138 BoogieDeclarations]: Found implementation of procedure slip_compat_ioctl [2021-11-25 20:19:35,173 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2021-11-25 20:19:35,173 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2021-11-25 20:19:35,173 INFO L130 BoogieDeclarations]: Found specification of procedure sl_get_stats64 [2021-11-25 20:19:35,173 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_get_stats64 [2021-11-25 20:19:35,174 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-25 20:19:35,174 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2021-11-25 20:19:35,174 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2021-11-25 20:19:35,175 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~int [2021-11-25 20:19:35,175 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~int [2021-11-25 20:19:35,175 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2021-11-25 20:19:35,175 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2021-11-25 20:19:35,175 INFO L130 BoogieDeclarations]: Found specification of procedure sl_ioctl [2021-11-25 20:19:35,175 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_ioctl [2021-11-25 20:19:35,175 INFO L130 BoogieDeclarations]: Found specification of procedure tty_hangup [2021-11-25 20:19:35,176 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_hangup [2021-11-25 20:19:35,176 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-25 20:19:35,176 INFO L130 BoogieDeclarations]: Found specification of procedure netif_queue_stopped [2021-11-25 20:19:35,176 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_queue_stopped [2021-11-25 20:19:35,176 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-25 20:19:35,177 INFO L130 BoogieDeclarations]: Found specification of procedure tty_devnum [2021-11-25 20:19:35,177 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_devnum [2021-11-25 20:19:35,177 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2021-11-25 20:19:35,177 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2021-11-25 20:19:35,177 INFO L130 BoogieDeclarations]: Found specification of procedure slip_hangup [2021-11-25 20:19:35,178 INFO L138 BoogieDeclarations]: Found implementation of procedure slip_hangup [2021-11-25 20:19:35,178 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-11-25 20:19:35,179 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-11-25 20:19:35,179 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-11-25 20:19:35,179 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-11-25 20:19:35,180 INFO L130 BoogieDeclarations]: Found specification of procedure sl_change_mtu [2021-11-25 20:19:35,180 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_change_mtu [2021-11-25 20:19:35,180 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~TO~VOID [2021-11-25 20:19:35,180 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~TO~VOID [2021-11-25 20:19:35,180 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-11-25 20:19:35,180 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-11-25 20:19:35,181 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-11-25 20:19:35,181 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-11-25 20:19:35,181 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-11-25 20:19:35,181 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-11-25 20:19:35,181 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-11-25 20:19:35,181 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-11-25 20:19:35,182 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-25 20:19:35,182 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_bh [2021-11-25 20:19:35,182 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_bh [2021-11-25 20:19:35,182 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_clear_bit [2021-11-25 20:19:35,183 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_clear_bit [2021-11-25 20:19:35,183 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2021-11-25 20:19:35,186 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2021-11-25 20:19:35,186 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-25 20:19:35,186 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-11-25 20:19:35,186 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-11-25 20:19:35,187 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-25 20:19:35,188 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-25 20:19:35,188 INFO L130 BoogieDeclarations]: Found specification of procedure sl_unlock [2021-11-25 20:19:35,188 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_unlock [2021-11-25 20:19:35,188 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_bh [2021-11-25 20:19:35,194 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_bh [2021-11-25 20:19:35,821 INFO L236 CfgBuilder]: Building ICFG [2021-11-25 20:19:35,826 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-25 20:19:36,066 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-25 20:19:38,627 INFO L277 CfgBuilder]: Performing block encoding [2021-11-25 20:19:39,557 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-25 20:19:39,558 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-25 20:19:39,563 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:19:39 BoogieIcfgContainer [2021-11-25 20:19:39,563 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-25 20:19:39,565 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-25 20:19:39,565 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-25 20:19:39,568 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-25 20:19:39,568 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 08:19:32" (1/3) ... [2021-11-25 20:19:39,569 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@510ced30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:19:39, skipping insertion in model container [2021-11-25 20:19:39,570 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:19:34" (2/3) ... [2021-11-25 20:19:39,570 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@510ced30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:19:39, skipping insertion in model container [2021-11-25 20:19:39,570 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:19:39" (3/3) ... [2021-11-25 20:19:39,573 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-stable-1b0b0ac-1-108_1a-drivers--net--slip.ko-entry_point.cil.out.i [2021-11-25 20:19:39,578 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-25 20:19:39,578 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-25 20:19:39,642 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-25 20:19:39,653 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-25 20:19:39,654 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-25 20:19:39,704 INFO L276 IsEmpty]: Start isEmpty. Operand has 770 states, 488 states have (on average 1.4057377049180328) internal successors, (686), 521 states have internal predecessors, (686), 229 states have call successors, (229), 52 states have call predecessors, (229), 51 states have return successors, (224), 222 states have call predecessors, (224), 224 states have call successors, (224) [2021-11-25 20:19:39,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-11-25 20:19:39,731 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:19:39,732 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:19:39,732 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 20:19:39,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:19:39,738 INFO L85 PathProgramCache]: Analyzing trace with hash 1674786566, now seen corresponding path program 1 times [2021-11-25 20:19:39,747 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:19:39,748 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [125078547] [2021-11-25 20:19:39,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:19:39,749 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:19:39,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:19:40,240 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2021-11-25 20:19:40,240 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:19:40,241 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [125078547] [2021-11-25 20:19:40,241 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [125078547] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:19:40,242 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:19:40,242 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 20:19:40,243 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2016114103] [2021-11-25 20:19:40,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:19:40,248 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 20:19:40,248 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:19:40,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 20:19:40,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:19:40,279 INFO L87 Difference]: Start difference. First operand has 770 states, 488 states have (on average 1.4057377049180328) internal successors, (686), 521 states have internal predecessors, (686), 229 states have call successors, (229), 52 states have call predecessors, (229), 51 states have return successors, (224), 222 states have call predecessors, (224), 224 states have call successors, (224) Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2021-11-25 20:19:42,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:19:42,546 INFO L93 Difference]: Finished difference Result 1967 states and 2884 transitions. [2021-11-25 20:19:42,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 20:19:42,551 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 60 [2021-11-25 20:19:42,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:19:42,579 INFO L225 Difference]: With dead ends: 1967 [2021-11-25 20:19:42,579 INFO L226 Difference]: Without dead ends: 1150 [2021-11-25 20:19:42,589 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 [2021-11-25 20:19:42,592 INFO L933 BasicCegarLoop]: 1128 mSDtfsCounter, 641 mSDsluCounter, 1082 mSDsCounter, 0 mSdLazyCounter, 307 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 641 SdHoareTripleChecker+Valid, 2079 SdHoareTripleChecker+Invalid, 309 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 307 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2021-11-25 20:19:42,593 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [641 Valid, 2079 Invalid, 309 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 307 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2021-11-25 20:19:42,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1150 states. [2021-11-25 20:19:42,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1150 to 1150. [2021-11-25 20:19:42,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1150 states, 728 states have (on average 1.3736263736263736) internal successors, (1000), 761 states have internal predecessors, (1000), 333 states have call successors, (333), 89 states have call predecessors, (333), 88 states have return successors, (332), 329 states have call predecessors, (332), 332 states have call successors, (332) [2021-11-25 20:19:42,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1150 states to 1150 states and 1665 transitions. [2021-11-25 20:19:42,737 INFO L78 Accepts]: Start accepts. Automaton has 1150 states and 1665 transitions. Word has length 60 [2021-11-25 20:19:42,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:19:42,737 INFO L470 AbstractCegarLoop]: Abstraction has 1150 states and 1665 transitions. [2021-11-25 20:19:42,738 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2021-11-25 20:19:42,738 INFO L276 IsEmpty]: Start isEmpty. Operand 1150 states and 1665 transitions. [2021-11-25 20:19:42,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-11-25 20:19:42,747 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:19:42,747 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:19:42,747 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-25 20:19:42,748 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 20:19:42,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:19:42,749 INFO L85 PathProgramCache]: Analyzing trace with hash 657136690, now seen corresponding path program 1 times [2021-11-25 20:19:42,749 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:19:42,749 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1376022129] [2021-11-25 20:19:42,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:19:42,750 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:19:42,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:19:42,893 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2021-11-25 20:19:42,893 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:19:42,893 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1376022129] [2021-11-25 20:19:42,894 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1376022129] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:19:42,894 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:19:42,894 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 20:19:42,894 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [794438240] [2021-11-25 20:19:42,895 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:19:42,896 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 20:19:42,896 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:19:42,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 20:19:42,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 20:19:42,897 INFO L87 Difference]: Start difference. First operand 1150 states and 1665 transitions. Second operand has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2021-11-25 20:19:45,044 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:19:45,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:19:45,673 INFO L93 Difference]: Finished difference Result 2283 states and 3305 transitions. [2021-11-25 20:19:45,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 20:19:45,677 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 94 [2021-11-25 20:19:45,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:19:45,688 INFO L225 Difference]: With dead ends: 2283 [2021-11-25 20:19:45,688 INFO L226 Difference]: Without dead ends: 1150 [2021-11-25 20:19:45,693 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 20:19:45,695 INFO L933 BasicCegarLoop]: 954 mSDtfsCounter, 1 mSDsluCounter, 2161 mSDsCounter, 0 mSdLazyCounter, 397 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 2857 SdHoareTripleChecker+Invalid, 398 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 397 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2021-11-25 20:19:45,696 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 2857 Invalid, 398 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 397 Invalid, 1 Unknown, 0 Unchecked, 2.7s Time] [2021-11-25 20:19:45,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1150 states. [2021-11-25 20:19:45,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1150 to 1150. [2021-11-25 20:19:45,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1150 states, 728 states have (on average 1.370879120879121) internal successors, (998), 761 states have internal predecessors, (998), 333 states have call successors, (333), 89 states have call predecessors, (333), 88 states have return successors, (332), 329 states have call predecessors, (332), 332 states have call successors, (332) [2021-11-25 20:19:45,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1150 states to 1150 states and 1663 transitions. [2021-11-25 20:19:45,764 INFO L78 Accepts]: Start accepts. Automaton has 1150 states and 1663 transitions. Word has length 94 [2021-11-25 20:19:45,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:19:45,767 INFO L470 AbstractCegarLoop]: Abstraction has 1150 states and 1663 transitions. [2021-11-25 20:19:45,767 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2021-11-25 20:19:45,767 INFO L276 IsEmpty]: Start isEmpty. Operand 1150 states and 1663 transitions. [2021-11-25 20:19:45,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-11-25 20:19:45,772 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:19:45,773 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:19:45,773 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-25 20:19:45,774 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 20:19:45,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:19:45,779 INFO L85 PathProgramCache]: Analyzing trace with hash 1149182895, now seen corresponding path program 1 times [2021-11-25 20:19:45,779 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:19:45,780 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1228974631] [2021-11-25 20:19:45,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:19:45,780 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:19:45,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:19:45,953 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2021-11-25 20:19:45,953 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:19:45,953 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1228974631] [2021-11-25 20:19:45,953 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1228974631] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:19:45,954 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:19:45,954 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 20:19:45,954 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [453992149] [2021-11-25 20:19:45,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:19:45,955 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 20:19:45,955 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:19:45,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 20:19:45,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 20:19:45,956 INFO L87 Difference]: Start difference. First operand 1150 states and 1663 transitions. Second operand has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2021-11-25 20:19:48,246 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:19:49,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:19:49,328 INFO L93 Difference]: Finished difference Result 1627 states and 2443 transitions. [2021-11-25 20:19:49,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-25 20:19:49,329 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 96 [2021-11-25 20:19:49,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:19:49,342 INFO L225 Difference]: With dead ends: 1627 [2021-11-25 20:19:49,342 INFO L226 Difference]: Without dead ends: 1624 [2021-11-25 20:19:49,343 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 20:19:49,350 INFO L933 BasicCegarLoop]: 1404 mSDtfsCounter, 607 mSDsluCounter, 2449 mSDsCounter, 0 mSdLazyCounter, 458 mSolverCounterSat, 141 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 638 SdHoareTripleChecker+Valid, 3577 SdHoareTripleChecker+Invalid, 599 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 141 IncrementalHoareTripleChecker+Valid, 458 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2021-11-25 20:19:49,354 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [638 Valid, 3577 Invalid, 599 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [141 Valid, 458 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2021-11-25 20:19:49,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1624 states. [2021-11-25 20:19:49,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1624 to 1152. [2021-11-25 20:19:49,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1152 states, 730 states have (on average 1.36986301369863) internal successors, (1000), 763 states have internal predecessors, (1000), 333 states have call successors, (333), 89 states have call predecessors, (333), 88 states have return successors, (332), 329 states have call predecessors, (332), 332 states have call successors, (332) [2021-11-25 20:19:49,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1152 states to 1152 states and 1665 transitions. [2021-11-25 20:19:49,431 INFO L78 Accepts]: Start accepts. Automaton has 1152 states and 1665 transitions. Word has length 96 [2021-11-25 20:19:49,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:19:49,434 INFO L470 AbstractCegarLoop]: Abstraction has 1152 states and 1665 transitions. [2021-11-25 20:19:49,435 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2021-11-25 20:19:49,435 INFO L276 IsEmpty]: Start isEmpty. Operand 1152 states and 1665 transitions. [2021-11-25 20:19:49,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2021-11-25 20:19:49,442 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:19:49,442 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:19:49,442 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-25 20:19:49,442 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 20:19:49,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:19:49,443 INFO L85 PathProgramCache]: Analyzing trace with hash 1598430312, now seen corresponding path program 1 times [2021-11-25 20:19:49,444 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:19:49,444 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1359409109] [2021-11-25 20:19:49,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:19:49,444 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:19:49,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:19:49,675 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2021-11-25 20:19:49,675 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:19:49,675 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1359409109] [2021-11-25 20:19:49,676 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1359409109] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:19:49,676 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:19:49,676 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 20:19:49,676 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [393995975] [2021-11-25 20:19:49,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:19:49,678 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 20:19:49,678 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:19:49,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 20:19:49,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-25 20:19:49,679 INFO L87 Difference]: Start difference. First operand 1152 states and 1665 transitions. Second operand has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 3 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2021-11-25 20:19:52,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:19:52,056 INFO L93 Difference]: Finished difference Result 2758 states and 4080 transitions. [2021-11-25 20:19:52,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 20:19:52,057 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 3 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 104 [2021-11-25 20:19:52,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:19:52,071 INFO L225 Difference]: With dead ends: 2758 [2021-11-25 20:19:52,071 INFO L226 Difference]: Without dead ends: 1627 [2021-11-25 20:19:52,077 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-25 20:19:52,083 INFO L933 BasicCegarLoop]: 1247 mSDtfsCounter, 1565 mSDsluCounter, 642 mSDsCounter, 0 mSdLazyCounter, 895 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1666 SdHoareTripleChecker+Valid, 1764 SdHoareTripleChecker+Invalid, 932 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 895 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2021-11-25 20:19:52,086 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1666 Valid, 1764 Invalid, 932 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 895 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2021-11-25 20:19:52,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1627 states. [2021-11-25 20:19:52,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1627 to 1153. [2021-11-25 20:19:52,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1153 states, 731 states have (on average 1.3693570451436388) internal successors, (1001), 764 states have internal predecessors, (1001), 333 states have call successors, (333), 89 states have call predecessors, (333), 88 states have return successors, (332), 329 states have call predecessors, (332), 332 states have call successors, (332) [2021-11-25 20:19:52,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1153 states to 1153 states and 1666 transitions. [2021-11-25 20:19:52,181 INFO L78 Accepts]: Start accepts. Automaton has 1153 states and 1666 transitions. Word has length 104 [2021-11-25 20:19:52,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:19:52,181 INFO L470 AbstractCegarLoop]: Abstraction has 1153 states and 1666 transitions. [2021-11-25 20:19:52,182 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 3 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2021-11-25 20:19:52,182 INFO L276 IsEmpty]: Start isEmpty. Operand 1153 states and 1666 transitions. [2021-11-25 20:19:52,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-11-25 20:19:52,194 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:19:52,194 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:19:52,194 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-25 20:19:52,194 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 20:19:52,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:19:52,197 INFO L85 PathProgramCache]: Analyzing trace with hash 884025818, now seen corresponding path program 1 times [2021-11-25 20:19:52,197 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:19:52,197 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [214327478] [2021-11-25 20:19:52,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:19:52,198 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:19:52,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:19:52,354 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2021-11-25 20:19:52,355 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:19:52,355 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [214327478] [2021-11-25 20:19:52,355 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [214327478] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:19:52,355 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:19:52,356 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-25 20:19:52,356 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [919657096] [2021-11-25 20:19:52,356 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:19:52,357 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-25 20:19:52,357 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:19:52,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-25 20:19:52,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-25 20:19:52,358 INFO L87 Difference]: Start difference. First operand 1153 states and 1666 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 3 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-11-25 20:19:54,058 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:19:55,852 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.79s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:19:58,428 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:20:00,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:20:00,121 INFO L93 Difference]: Finished difference Result 2431 states and 3756 transitions. [2021-11-25 20:20:00,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-25 20:20:00,122 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 3 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 105 [2021-11-25 20:20:00,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:20:00,144 INFO L225 Difference]: With dead ends: 2431 [2021-11-25 20:20:00,144 INFO L226 Difference]: Without dead ends: 2428 [2021-11-25 20:20:00,146 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-11-25 20:20:00,147 INFO L933 BasicCegarLoop]: 1748 mSDtfsCounter, 1387 mSDsluCounter, 4653 mSDsCounter, 0 mSdLazyCounter, 698 mSolverCounterSat, 403 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1491 SdHoareTripleChecker+Valid, 5928 SdHoareTripleChecker+Invalid, 1102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 403 IncrementalHoareTripleChecker+Valid, 698 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2021-11-25 20:20:00,147 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1491 Valid, 5928 Invalid, 1102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [403 Valid, 698 Invalid, 1 Unknown, 0 Unchecked, 7.5s Time] [2021-11-25 20:20:00,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2428 states. [2021-11-25 20:20:00,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2428 to 1155. [2021-11-25 20:20:00,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1155 states, 732 states have (on average 1.3688524590163935) internal successors, (1002), 764 states have internal predecessors, (1002), 334 states have call successors, (334), 89 states have call predecessors, (334), 88 states have return successors, (333), 330 states have call predecessors, (333), 333 states have call successors, (333) [2021-11-25 20:20:00,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1155 states to 1155 states and 1669 transitions. [2021-11-25 20:20:00,262 INFO L78 Accepts]: Start accepts. Automaton has 1155 states and 1669 transitions. Word has length 105 [2021-11-25 20:20:00,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:20:00,263 INFO L470 AbstractCegarLoop]: Abstraction has 1155 states and 1669 transitions. [2021-11-25 20:20:00,264 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 3 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-11-25 20:20:00,264 INFO L276 IsEmpty]: Start isEmpty. Operand 1155 states and 1669 transitions. [2021-11-25 20:20:00,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2021-11-25 20:20:00,272 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:20:00,272 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:20:00,272 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-25 20:20:00,272 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 20:20:00,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:20:00,273 INFO L85 PathProgramCache]: Analyzing trace with hash 173185866, now seen corresponding path program 1 times [2021-11-25 20:20:00,274 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:20:00,274 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [292182701] [2021-11-25 20:20:00,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:20:00,274 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:20:00,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:20:00,484 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2021-11-25 20:20:00,484 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:20:00,484 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [292182701] [2021-11-25 20:20:00,485 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [292182701] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:20:00,485 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:20:00,485 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 20:20:00,485 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2048950569] [2021-11-25 20:20:00,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:20:00,486 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 20:20:00,486 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:20:00,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 20:20:00,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:20:00,487 INFO L87 Difference]: Start difference. First operand 1155 states and 1669 transitions. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 3 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2021-11-25 20:20:02,995 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:20:04,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:20:04,006 INFO L93 Difference]: Finished difference Result 2688 states and 3870 transitions. [2021-11-25 20:20:04,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 20:20:04,009 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 3 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 129 [2021-11-25 20:20:04,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:20:04,021 INFO L225 Difference]: With dead ends: 2688 [2021-11-25 20:20:04,021 INFO L226 Difference]: Without dead ends: 1554 [2021-11-25 20:20:04,026 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 [2021-11-25 20:20:04,027 INFO L933 BasicCegarLoop]: 1443 mSDtfsCounter, 1031 mSDsluCounter, 588 mSDsCounter, 0 mSdLazyCounter, 266 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1031 SdHoareTripleChecker+Valid, 1962 SdHoareTripleChecker+Invalid, 267 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 266 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2021-11-25 20:20:04,028 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1031 Valid, 1962 Invalid, 267 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 266 Invalid, 1 Unknown, 0 Unchecked, 3.4s Time] [2021-11-25 20:20:04,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1554 states. [2021-11-25 20:20:04,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1554 to 1553. [2021-11-25 20:20:04,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1553 states, 979 states have (on average 1.3615934627170583) internal successors, (1333), 1020 states have internal predecessors, (1333), 448 states have call successors, (448), 126 states have call predecessors, (448), 125 states have return successors, (447), 442 states have call predecessors, (447), 447 states have call successors, (447) [2021-11-25 20:20:04,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1553 states to 1553 states and 2228 transitions. [2021-11-25 20:20:04,156 INFO L78 Accepts]: Start accepts. Automaton has 1553 states and 2228 transitions. Word has length 129 [2021-11-25 20:20:04,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:20:04,157 INFO L470 AbstractCegarLoop]: Abstraction has 1553 states and 2228 transitions. [2021-11-25 20:20:04,157 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 3 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2021-11-25 20:20:04,158 INFO L276 IsEmpty]: Start isEmpty. Operand 1553 states and 2228 transitions. [2021-11-25 20:20:04,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2021-11-25 20:20:04,167 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:20:04,167 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:20:04,168 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-25 20:20:04,168 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 20:20:04,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:20:04,168 INFO L85 PathProgramCache]: Analyzing trace with hash 1804121220, now seen corresponding path program 1 times [2021-11-25 20:20:04,169 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:20:04,169 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1426485677] [2021-11-25 20:20:04,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:20:04,169 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:20:04,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:20:04,339 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2021-11-25 20:20:04,339 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:20:04,339 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1426485677] [2021-11-25 20:20:04,339 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1426485677] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:20:04,339 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:20:04,340 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-25 20:20:04,340 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [556920780] [2021-11-25 20:20:04,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:20:04,341 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-25 20:20:04,341 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:20:04,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-25 20:20:04,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-25 20:20:04,342 INFO L87 Difference]: Start difference. First operand 1553 states and 2228 transitions. Second operand has 5 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 3 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2021-11-25 20:20:07,038 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:20:09,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:20:09,991 INFO L93 Difference]: Finished difference Result 4115 states and 6205 transitions. [2021-11-25 20:20:09,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-25 20:20:09,993 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 3 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 131 [2021-11-25 20:20:09,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:20:10,017 INFO L225 Difference]: With dead ends: 4115 [2021-11-25 20:20:10,018 INFO L226 Difference]: Without dead ends: 2981 [2021-11-25 20:20:10,024 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-11-25 20:20:10,025 INFO L933 BasicCegarLoop]: 1591 mSDtfsCounter, 2527 mSDsluCounter, 2408 mSDsCounter, 0 mSdLazyCounter, 1635 mSolverCounterSat, 368 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2628 SdHoareTripleChecker+Valid, 3691 SdHoareTripleChecker+Invalid, 2004 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 368 IncrementalHoareTripleChecker+Valid, 1635 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2021-11-25 20:20:10,025 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2628 Valid, 3691 Invalid, 2004 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [368 Valid, 1635 Invalid, 1 Unknown, 0 Unchecked, 5.3s Time] [2021-11-25 20:20:10,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2981 states. [2021-11-25 20:20:10,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2981 to 1556. [2021-11-25 20:20:10,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1556 states, 982 states have (on average 1.3615071283095723) internal successors, (1337), 1023 states have internal predecessors, (1337), 448 states have call successors, (448), 126 states have call predecessors, (448), 125 states have return successors, (447), 442 states have call predecessors, (447), 447 states have call successors, (447) [2021-11-25 20:20:10,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1556 states to 1556 states and 2232 transitions. [2021-11-25 20:20:10,176 INFO L78 Accepts]: Start accepts. Automaton has 1556 states and 2232 transitions. Word has length 131 [2021-11-25 20:20:10,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:20:10,176 INFO L470 AbstractCegarLoop]: Abstraction has 1556 states and 2232 transitions. [2021-11-25 20:20:10,177 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 3 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2021-11-25 20:20:10,177 INFO L276 IsEmpty]: Start isEmpty. Operand 1556 states and 2232 transitions. [2021-11-25 20:20:10,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2021-11-25 20:20:10,187 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:20:10,187 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:20:10,188 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-25 20:20:10,188 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 20:20:10,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:20:10,189 INFO L85 PathProgramCache]: Analyzing trace with hash 40035868, now seen corresponding path program 1 times [2021-11-25 20:20:10,189 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:20:10,190 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [381182031] [2021-11-25 20:20:10,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:20:10,190 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:20:10,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:20:10,400 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2021-11-25 20:20:10,400 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:20:10,400 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [381182031] [2021-11-25 20:20:10,400 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [381182031] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 20:20:10,401 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1055248984] [2021-11-25 20:20:10,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:20:10,401 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:20:10,401 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3048131f-77ef-4757-8181-1043bf60d3a3/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:20:10,406 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3048131f-77ef-4757-8181-1043bf60d3a3/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 20:20:10,413 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3048131f-77ef-4757-8181-1043bf60d3a3/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-25 20:20:10,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:20:10,969 INFO L263 TraceCheckSpWp]: Trace formula consists of 1184 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-25 20:20:10,983 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:20:11,411 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2021-11-25 20:20:11,411 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 20:20:11,744 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2021-11-25 20:20:11,745 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1055248984] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 20:20:11,745 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1969401147] [2021-11-25 20:20:11,770 INFO L159 IcfgInterpreter]: Started Sifa with 95 locations of interest [2021-11-25 20:20:11,770 INFO L166 IcfgInterpreter]: Building call graph [2021-11-25 20:20:11,775 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-25 20:20:11,780 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-25 20:20:11,781 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-25 20:20:12,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:20:12,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:20:12,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:20:12,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:20:12,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:20:12,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:20:12,876 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 16 select indices, 16 select index equivalence classes, 22 disjoint index pairs (out of 120 index pairs), introduced 16 new quantified variables, introduced 0 case distinctions, treesize of input 119 treesize of output 49 [2021-11-25 20:20:13,741 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:20:13,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:20:13,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:20:13,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:20:13,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:20:13,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:20:13,749 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 16 select indices, 16 select index equivalence classes, 22 disjoint index pairs (out of 120 index pairs), introduced 16 new quantified variables, introduced 0 case distinctions, treesize of input 119 treesize of output 49 [2021-11-25 20:20:26,874 INFO L197 IcfgInterpreter]: Interpreting procedure kmalloc with input of size 423 for LOIs [2021-11-25 20:20:27,811 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_zalloc with input of size 136 for LOIs [2021-11-25 20:20:27,932 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_malloc with input of size 423 for LOIs [2021-11-25 20:20:28,113 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-25 20:22:02,223 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSifa [1969401147] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:22:02,224 INFO L186 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2021-11-25 20:22:02,224 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [38] imperfect sequences [5, 4, 5] total 47 [2021-11-25 20:22:02,225 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1711273951] [2021-11-25 20:22:02,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:22:02,225 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2021-11-25 20:22:02,226 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:22:02,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2021-11-25 20:22:02,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=265, Invalid=1897, Unknown=0, NotChecked=0, Total=2162 [2021-11-25 20:22:02,227 INFO L87 Difference]: Start difference. First operand 1556 states and 2232 transitions. Second operand has 39 states, 29 states have (on average 2.4827586206896552) internal successors, (72), 26 states have internal predecessors, (72), 10 states have call successors, (17), 4 states have call predecessors, (17), 4 states have return successors, (16), 10 states have call predecessors, (16), 10 states have call successors, (16) [2021-11-25 20:23:03,656 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:23:05,994 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:23:08,940 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:23:10,262 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:23:12,051 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:23:14,996 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.58s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:23:34,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:23:34,952 INFO L93 Difference]: Finished difference Result 3179 states and 4585 transitions. [2021-11-25 20:23:34,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-11-25 20:23:34,953 INFO L78 Accepts]: Start accepts. Automaton has has 39 states, 29 states have (on average 2.4827586206896552) internal successors, (72), 26 states have internal predecessors, (72), 10 states have call successors, (17), 4 states have call predecessors, (17), 4 states have return successors, (16), 10 states have call predecessors, (16), 10 states have call successors, (16) Word has length 133 [2021-11-25 20:23:34,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:23:34,968 INFO L225 Difference]: With dead ends: 3179 [2021-11-25 20:23:34,969 INFO L226 Difference]: Without dead ends: 1638 [2021-11-25 20:23:34,976 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 421 GetRequests, 358 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1368 ImplicationChecksByTransitivity, 139.3s TimeCoverageRelationStatistics Valid=453, Invalid=3707, Unknown=0, NotChecked=0, Total=4160 [2021-11-25 20:23:34,977 INFO L933 BasicCegarLoop]: 957 mSDtfsCounter, 79 mSDsluCounter, 14280 mSDsCounter, 0 mSdLazyCounter, 7986 mSolverCounterSat, 205 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 44.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 13945 SdHoareTripleChecker+Invalid, 8193 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 205 IncrementalHoareTripleChecker+Valid, 7986 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 47.1s IncrementalHoareTripleChecker+Time [2021-11-25 20:23:34,977 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [81 Valid, 13945 Invalid, 8193 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [205 Valid, 7986 Invalid, 2 Unknown, 0 Unchecked, 47.1s Time] [2021-11-25 20:23:34,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1638 states. [2021-11-25 20:23:35,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1638 to 1597. [2021-11-25 20:23:35,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1597 states, 1013 states have (on average 1.3573543928923988) internal successors, (1375), 1054 states have internal predecessors, (1375), 456 states have call successors, (456), 129 states have call predecessors, (456), 127 states have return successors, (468), 449 states have call predecessors, (468), 455 states have call successors, (468) [2021-11-25 20:23:35,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1597 states to 1597 states and 2299 transitions. [2021-11-25 20:23:35,142 INFO L78 Accepts]: Start accepts. Automaton has 1597 states and 2299 transitions. Word has length 133 [2021-11-25 20:23:35,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:23:35,143 INFO L470 AbstractCegarLoop]: Abstraction has 1597 states and 2299 transitions. [2021-11-25 20:23:35,143 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 39 states, 29 states have (on average 2.4827586206896552) internal successors, (72), 26 states have internal predecessors, (72), 10 states have call successors, (17), 4 states have call predecessors, (17), 4 states have return successors, (16), 10 states have call predecessors, (16), 10 states have call successors, (16) [2021-11-25 20:23:35,143 INFO L276 IsEmpty]: Start isEmpty. Operand 1597 states and 2299 transitions. [2021-11-25 20:23:35,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2021-11-25 20:23:35,155 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:23:35,155 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 8, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:23:35,182 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3048131f-77ef-4757-8181-1043bf60d3a3/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-11-25 20:23:35,370 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3048131f-77ef-4757-8181-1043bf60d3a3/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:23:35,370 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 20:23:35,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:23:35,371 INFO L85 PathProgramCache]: Analyzing trace with hash -791533800, now seen corresponding path program 1 times [2021-11-25 20:23:35,371 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:23:35,371 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1027442302] [2021-11-25 20:23:35,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:23:35,371 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:23:35,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:23:35,552 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2021-11-25 20:23:35,553 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:23:35,553 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1027442302] [2021-11-25 20:23:35,553 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1027442302] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 20:23:35,553 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [407949780] [2021-11-25 20:23:35,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:23:35,553 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:23:35,554 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3048131f-77ef-4757-8181-1043bf60d3a3/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:23:35,558 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3048131f-77ef-4757-8181-1043bf60d3a3/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 20:23:35,566 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3048131f-77ef-4757-8181-1043bf60d3a3/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-25 20:23:36,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:23:36,107 INFO L263 TraceCheckSpWp]: Trace formula consists of 1225 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-25 20:23:36,120 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:23:36,457 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2021-11-25 20:23:36,458 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 20:23:36,760 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2021-11-25 20:23:36,760 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [407949780] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 20:23:36,760 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1161192596] [2021-11-25 20:23:36,766 INFO L159 IcfgInterpreter]: Started Sifa with 99 locations of interest [2021-11-25 20:23:36,766 INFO L166 IcfgInterpreter]: Building call graph [2021-11-25 20:23:36,766 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-25 20:23:36,767 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-25 20:23:36,767 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-25 20:23:37,187 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 6 [2021-11-25 20:23:37,193 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 [2021-11-25 20:23:37,200 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 [2021-11-25 20:23:37,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:37,575 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:37,576 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:37,577 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:37,578 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:37,579 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:37,581 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 16 select indices, 16 select index equivalence classes, 22 disjoint index pairs (out of 120 index pairs), introduced 16 new quantified variables, introduced 0 case distinctions, treesize of input 119 treesize of output 49 [2021-11-25 20:23:38,571 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:38,572 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:38,577 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:38,578 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:38,579 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:38,581 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:38,583 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 16 select indices, 16 select index equivalence classes, 22 disjoint index pairs (out of 120 index pairs), introduced 16 new quantified variables, introduced 0 case distinctions, treesize of input 119 treesize of output 49 [2021-11-25 20:23:45,200 INFO L197 IcfgInterpreter]: Interpreting procedure kmalloc with input of size 81 for LOIs [2021-11-25 20:23:45,367 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_zalloc with input of size 677 for LOIs [2021-11-25 20:23:46,568 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 7 treesize of output 6 [2021-11-25 20:23:46,872 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 [2021-11-25 20:23:47,243 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 [2021-11-25 20:23:48,850 INFO L354 Elim1Store]: treesize reduction 270, result has 47.5 percent of original size [2021-11-25 20:23:48,851 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 27 select indices, 27 select index equivalence classes, 352 disjoint index pairs (out of 351 index pairs), introduced 28 new quantified variables, introduced 27 case distinctions, treesize of input 1545 treesize of output 1737 [2021-11-25 20:23:48,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:48,971 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:48,973 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:49,073 INFO L354 Elim1Store]: treesize reduction 44, result has 45.7 percent of original size [2021-11-25 20:23:49,074 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 1496 treesize of output 1503 [2021-11-25 20:23:50,738 INFO L354 Elim1Store]: treesize reduction 270, result has 63.0 percent of original size [2021-11-25 20:23:50,739 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 29 select indices, 29 select index equivalence classes, 379 disjoint index pairs (out of 406 index pairs), introduced 30 new quantified variables, introduced 54 case distinctions, treesize of input 1460 treesize of output 1869 [2021-11-25 20:27:33,440 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 18 treesize of output 12 [2021-11-25 20:27:33,473 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 18 treesize of output 12 [2021-11-25 20:27:33,993 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 18 treesize of output 12 [2021-11-25 20:27:34,045 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 18 treesize of output 12 [2021-11-25 20:27:34,610 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 18 treesize of output 12 [2021-11-25 20:27:34,659 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 18 treesize of output 12 [2021-11-25 20:27:35,207 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 18 treesize of output 12 [2021-11-25 20:27:35,264 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 18 treesize of output 12 [2021-11-25 20:27:35,827 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 18 treesize of output 12 [2021-11-25 20:27:36,078 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 18 treesize of output 12 [2021-11-25 20:27:36,616 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 18 treesize of output 12 [2021-11-25 20:27:36,684 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 18 treesize of output 12 [2021-11-25 20:27:37,281 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 18 treesize of output 12 [2021-11-25 20:27:37,334 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 18 treesize of output 12 [2021-11-25 20:27:37,910 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 18 treesize of output 12 [2021-11-25 20:27:37,975 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 18 treesize of output 12 [2021-11-25 20:27:38,441 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 18 treesize of output 12 [2021-11-25 20:27:38,637 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 18 treesize of output 12 [2021-11-25 20:27:38,887 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 18 treesize of output 12 [2021-11-25 20:27:39,182 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 18 treesize of output 12 [2021-11-25 20:27:39,383 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 18 treesize of output 12 [2021-11-25 20:27:39,627 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 18 treesize of output 12 [2021-11-25 20:27:40,045 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 18 treesize of output 12 [2021-11-25 20:27:40,292 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 18 treesize of output 12 [2021-11-25 20:27:40,910 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 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 18 treesize of output 12 [2021-11-25 20:27:41,335 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 18 treesize of output 12 [2021-11-25 20:27:41,398 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 18 treesize of output 12 [2021-11-25 20:27:42,018 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 18 treesize of output 12 [2021-11-25 20:27:42,083 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 18 treesize of output 12 [2021-11-25 20:27:42,716 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 18 treesize of output 12 [2021-11-25 20:27:42,974 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 18 treesize of output 12 [2021-11-25 20:27:43,424 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 18 treesize of output 12 [2021-11-25 20:27:43,492 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 18 treesize of output 12 [2021-11-25 20:27:44,135 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 18 treesize of output 12 [2021-11-25 20:27:44,207 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 18 treesize of output 12 [2021-11-25 20:27:44,852 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 18 treesize of output 12 [2021-11-25 20:27:45,121 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 18 treesize of output 12 [2021-11-25 20:27:45,581 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 18 treesize of output 12 [2021-11-25 20:27:45,865 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 18 treesize of output 12 [2021-11-25 20:27:46,321 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 18 treesize of output 12 [2021-11-25 20:27:46,398 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 18 treesize of output 12 [2021-11-25 20:27:47,066 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 18 treesize of output 12 [2021-11-25 20:27:47,142 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 18 treesize of output 12 [2021-11-25 20:27:47,822 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 18 treesize of output 12 [2021-11-25 20:27:47,899 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 18 treesize of output 12 [2021-11-25 20:27:48,576 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 18 treesize of output 12 [2021-11-25 20:27:48,654 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 18 treesize of output 12 [2021-11-25 20:27:49,334 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 18 treesize of output 12 [2021-11-25 20:27:49,407 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 18 treesize of output 12 [2021-11-25 20:27:50,109 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 18 treesize of output 12 [2021-11-25 20:27:50,206 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 18 treesize of output 12 [2021-11-25 20:27:50,904 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 18 treesize of output 12 [2021-11-25 20:27:50,985 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 18 treesize of output 12 [2021-11-25 20:27:51,697 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 18 treesize of output 12 [2021-11-25 20:27:51,781 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 18 treesize of output 12 [2021-11-25 20:28:05,646 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 18 treesize of output 12 [2021-11-25 20:28:05,733 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 18 treesize of output 12 [2021-11-25 20:28:06,243 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 18 treesize of output 12 [2021-11-25 20:28:06,329 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 18 treesize of output 12 [2021-11-25 20:28:07,061 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 18 treesize of output 12 [2021-11-25 20:28:07,152 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 18 treesize of output 12 [2021-11-25 20:28:07,878 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 18 treesize of output 12 [2021-11-25 20:28:07,963 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 18 treesize of output 12 [2021-11-25 20:28:08,926 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 18 treesize of output 12 [2021-11-25 20:28:09,006 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 18 treesize of output 12 [2021-11-25 20:28:09,502 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 18 treesize of output 12 [2021-11-25 20:28:09,585 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 18 treesize of output 12 [2021-11-25 20:28:10,322 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 18 treesize of output 12 [2021-11-25 20:28:10,417 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 18 treesize of output 12 [2021-11-25 20:28:11,146 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 18 treesize of output 12 [2021-11-25 20:28:11,233 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 18 treesize of output 12 [2021-11-25 20:28:11,837 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 18 treesize of output 12 [2021-11-25 20:28:12,055 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 18 treesize of output 12 [2021-11-25 20:28:12,136 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 18 treesize of output 12 [2021-11-25 20:28:12,882 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 18 treesize of output 12 [2021-11-25 20:28:12,974 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 18 treesize of output 12 [2021-11-25 20:28:13,710 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 18 treesize of output 12 [2021-11-25 20:28:14,026 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 18 treesize of output 12 [2021-11-25 20:28:14,766 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 18 treesize of output 12 [2021-11-25 20:28:14,863 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 18 treesize of output 12 [2021-11-25 20:28:15,395 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 18 treesize of output 12 [2021-11-25 20:28:15,496 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 18 treesize of output 12 [2021-11-25 20:28:16,220 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 18 treesize of output 12 [2021-11-25 20:28:16,301 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 18 treesize of output 12 [2021-11-25 20:28:17,045 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 18 treesize of output 12 [2021-11-25 20:28:17,149 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 18 treesize of output 12 [2021-11-25 20:28:18,101 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 18 treesize of output 12 [2021-11-25 20:28:18,207 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 18 treesize of output 12 [2021-11-25 20:28:18,709 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 18 treesize of output 12 [2021-11-25 20:28:18,791 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 18 treesize of output 12 [2021-11-25 20:28:19,563 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 18 treesize of output 12 [2021-11-25 20:28:19,658 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 18 treesize of output 12 [2021-11-25 20:28:20,295 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 18 treesize of output 12 [2021-11-25 20:28:20,761 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 18 treesize of output 12 [2021-11-25 20:28:20,859 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 18 treesize of output 12 [2021-11-25 20:28:21,371 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 18 treesize of output 12 [2021-11-25 20:28:21,467 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 18 treesize of output 12 [2021-11-25 20:28:22,220 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 18 treesize of output 12 [2021-11-25 20:28:22,543 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 18 treesize of output 12 [2021-11-25 20:28:23,056 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 18 treesize of output 12 [2021-11-25 20:28:23,148 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 18 treesize of output 12 [2021-11-25 20:28:24,145 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 12 [2021-11-25 20:28:24,861 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 18 treesize of output 12 [2021-11-25 20:28:24,959 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 18 treesize of output 12 [2021-11-25 20:28:25,478 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 18 treesize of output 12 [2021-11-25 20:28:25,801 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 18 treesize of output 12 [2021-11-25 20:28:26,541 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 18 treesize of output 12 [2021-11-25 20:28:26,623 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 18 treesize of output 12 [2021-11-25 20:28:27,128 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 18 treesize of output 12 [2021-11-25 20:28:27,223 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 18 treesize of output 12 [2021-11-25 20:29:11,308 WARN L227 SmtUtils]: Spent 9.79s on a formula simplification. DAG size of input: 938 DAG size of output: 938 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-25 20:29:27,011 WARN L227 SmtUtils]: Spent 9.82s on a formula simplification. DAG size of input: 937 DAG size of output: 937 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-25 20:29:42,652 WARN L227 SmtUtils]: Spent 9.78s on a formula simplification. DAG size of input: 936 DAG size of output: 936 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-25 20:29:58,349 WARN L227 SmtUtils]: Spent 9.82s on a formula simplification. DAG size of input: 935 DAG size of output: 935 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-25 20:30:14,046 WARN L227 SmtUtils]: Spent 9.82s on a formula simplification. DAG size of input: 934 DAG size of output: 934 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-25 20:30:29,726 WARN L227 SmtUtils]: Spent 9.80s on a formula simplification. DAG size of input: 933 DAG size of output: 933 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-25 20:30:46,152 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 26 select indices, 26 select index equivalence classes, 326 disjoint index pairs (out of 325 index pairs), introduced 26 new quantified variables, introduced 0 case distinctions, treesize of input 131 treesize of output 79 [2021-11-25 20:30:46,226 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:30:46,987 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:30:47,365 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:30:52,253 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 26 select indices, 26 select index equivalence classes, 326 disjoint index pairs (out of 325 index pairs), introduced 26 new quantified variables, introduced 0 case distinctions, treesize of input 131 treesize of output 79 [2021-11-25 20:30:52,506 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:30:52,938 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:30:53,323 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:31:07,105 WARN L227 SmtUtils]: Spent 9.79s on a formula simplification. DAG size of input: 932 DAG size of output: 932 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-25 20:31:22,777 WARN L227 SmtUtils]: Spent 9.80s on a formula simplification. DAG size of input: 931 DAG size of output: 931 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-25 20:31:38,444 WARN L227 SmtUtils]: Spent 9.79s on a formula simplification. DAG size of input: 930 DAG size of output: 930 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-25 20:31:54,620 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 27 select indices, 27 select index equivalence classes, 352 disjoint index pairs (out of 351 index pairs), introduced 27 new quantified variables, introduced 0 case distinctions, treesize of input 140 treesize of output 86 [2021-11-25 20:31:55,247 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:31:55,299 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:31:56,104 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:32:01,053 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:32:01,307 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:32:01,844 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:32:02,277 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:32:15,907 WARN L227 SmtUtils]: Spent 9.78s on a formula simplification. DAG size of input: 929 DAG size of output: 929 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-25 20:32:31,863 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 27 select indices, 27 select index equivalence classes, 352 disjoint index pairs (out of 351 index pairs), introduced 27 new quantified variables, introduced 0 case distinctions, treesize of input 140 treesize of output 86 [2021-11-25 20:32:32,148 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:32:32,399 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:32:33,541 WARN L234 Elim1Store]: Array PQE input equivalent to false