./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--thunderbolt--thunderbolt.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d340117-805a-4298-9e23-ecfbd1f1a2f6/bin/utaipan-TEXQjIfE4P/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d340117-805a-4298-9e23-ecfbd1f1a2f6/bin/utaipan-TEXQjIfE4P/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d340117-805a-4298-9e23-ecfbd1f1a2f6/bin/utaipan-TEXQjIfE4P/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d340117-805a-4298-9e23-ecfbd1f1a2f6/bin/utaipan-TEXQjIfE4P/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--thunderbolt--thunderbolt.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d340117-805a-4298-9e23-ecfbd1f1a2f6/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d340117-805a-4298-9e23-ecfbd1f1a2f6/bin/utaipan-TEXQjIfE4P --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash d253b745dee5ef05ffbbca6087a2bac9710536fabca8626c0fece9fd6b3fe837 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-21 01:40:41,095 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-21 01:40:41,098 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-21 01:40:41,164 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-21 01:40:41,165 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-21 01:40:41,172 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-21 01:40:41,175 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-21 01:40:41,180 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-21 01:40:41,183 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-21 01:40:41,192 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-21 01:40:41,195 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-21 01:40:41,197 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-21 01:40:41,198 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-21 01:40:41,201 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-21 01:40:41,204 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-21 01:40:41,211 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-21 01:40:41,212 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-21 01:40:41,214 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-21 01:40:41,217 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-21 01:40:41,226 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-21 01:40:41,229 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-21 01:40:41,231 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-21 01:40:41,236 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-21 01:40:41,237 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-21 01:40:41,244 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-21 01:40:41,245 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-21 01:40:41,245 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-21 01:40:41,248 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-21 01:40:41,248 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-21 01:40:41,250 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-21 01:40:41,252 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-21 01:40:41,253 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-21 01:40:41,255 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-21 01:40:41,257 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-21 01:40:41,259 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-21 01:40:41,259 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-21 01:40:41,260 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-21 01:40:41,261 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-21 01:40:41,261 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-21 01:40:41,262 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-21 01:40:41,263 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-21 01:40:41,264 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d340117-805a-4298-9e23-ecfbd1f1a2f6/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-21 01:40:41,300 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-21 01:40:41,300 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-21 01:40:41,300 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-21 01:40:41,301 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-21 01:40:41,301 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-21 01:40:41,302 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-21 01:40:41,302 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-21 01:40:41,302 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-21 01:40:41,302 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-21 01:40:41,303 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-21 01:40:41,303 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-21 01:40:41,303 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-21 01:40:41,303 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-21 01:40:41,303 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-21 01:40:41,304 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-21 01:40:41,304 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-21 01:40:41,304 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-21 01:40:41,304 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-21 01:40:41,305 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-21 01:40:41,306 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-21 01:40:41,306 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-21 01:40:41,306 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-21 01:40:41,306 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-21 01:40:41,307 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-21 01:40:41,307 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-21 01:40:41,307 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-21 01:40:41,307 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-21 01:40:41,308 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-21 01:40:41,308 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-21 01:40:41,308 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 01:40:41,308 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-21 01:40:41,309 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-21 01:40:41,309 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-21 01:40:41,309 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-21 01:40:41,309 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-21 01:40:41,310 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-21 01:40:41,310 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-21 01:40:41,310 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-21 01:40:41,310 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_2d340117-805a-4298-9e23-ecfbd1f1a2f6/bin/utaipan-TEXQjIfE4P/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d340117-805a-4298-9e23-ecfbd1f1a2f6/bin/utaipan-TEXQjIfE4P Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d253b745dee5ef05ffbbca6087a2bac9710536fabca8626c0fece9fd6b3fe837 [2021-11-21 01:40:41,684 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-21 01:40:41,720 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-21 01:40:41,723 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-21 01:40:41,725 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-21 01:40:41,726 INFO L275 PluginConnector]: CDTParser initialized [2021-11-21 01:40:41,727 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d340117-805a-4298-9e23-ecfbd1f1a2f6/bin/utaipan-TEXQjIfE4P/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--thunderbolt--thunderbolt.ko-entry_point.cil.out.i [2021-11-21 01:40:41,814 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d340117-805a-4298-9e23-ecfbd1f1a2f6/bin/utaipan-TEXQjIfE4P/data/409278725/811f8a4db86646fe8cd0875cd9741569/FLAG206048303 [2021-11-21 01:40:42,915 INFO L306 CDTParser]: Found 1 translation units. [2021-11-21 01:40:42,915 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d340117-805a-4298-9e23-ecfbd1f1a2f6/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--thunderbolt--thunderbolt.ko-entry_point.cil.out.i [2021-11-21 01:40:42,977 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d340117-805a-4298-9e23-ecfbd1f1a2f6/bin/utaipan-TEXQjIfE4P/data/409278725/811f8a4db86646fe8cd0875cd9741569/FLAG206048303 [2021-11-21 01:40:43,269 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d340117-805a-4298-9e23-ecfbd1f1a2f6/bin/utaipan-TEXQjIfE4P/data/409278725/811f8a4db86646fe8cd0875cd9741569 [2021-11-21 01:40:43,272 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-21 01:40:43,273 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-21 01:40:43,289 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-21 01:40:43,289 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-21 01:40:43,311 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-21 01:40:43,312 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 01:40:43" (1/1) ... [2021-11-21 01:40:43,314 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c947ee1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:40:43, skipping insertion in model container [2021-11-21 01:40:43,314 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 01:40:43" (1/1) ... [2021-11-21 01:40:43,324 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-21 01:40:43,496 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-21 01:40:46,895 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_2d340117-805a-4298-9e23-ecfbd1f1a2f6/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--thunderbolt--thunderbolt.ko-entry_point.cil.out.i[312804,312817] [2021-11-21 01:40:47,163 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 01:40:47,193 INFO L203 MainTranslator]: Completed pre-run [2021-11-21 01:40:47,914 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_2d340117-805a-4298-9e23-ecfbd1f1a2f6/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--thunderbolt--thunderbolt.ko-entry_point.cil.out.i[312804,312817] [2021-11-21 01:40:47,935 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 01:40:48,183 INFO L208 MainTranslator]: Completed translation [2021-11-21 01:40:48,184 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:40:48 WrapperNode [2021-11-21 01:40:48,184 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-21 01:40:48,186 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-21 01:40:48,186 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-21 01:40:48,186 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-21 01:40:48,195 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:40:48" (1/1) ... [2021-11-21 01:40:48,401 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:40:48" (1/1) ... [2021-11-21 01:40:48,699 INFO L137 Inliner]: procedures = 480, calls = 3867, calls flagged for inlining = 166, calls inlined = 158, statements flattened = 7270 [2021-11-21 01:40:48,700 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-21 01:40:48,701 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-21 01:40:48,702 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-21 01:40:48,702 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-21 01:40:48,712 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:40:48" (1/1) ... [2021-11-21 01:40:48,713 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:40:48" (1/1) ... [2021-11-21 01:40:48,806 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:40:48" (1/1) ... [2021-11-21 01:40:48,808 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:40:48" (1/1) ... [2021-11-21 01:40:49,117 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:40:48" (1/1) ... [2021-11-21 01:40:49,169 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:40:48" (1/1) ... [2021-11-21 01:40:49,205 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:40:48" (1/1) ... [2021-11-21 01:40:49,258 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-21 01:40:49,260 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-21 01:40:49,261 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-21 01:40:49,261 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-21 01:40:49,262 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:40:48" (1/1) ... [2021-11-21 01:40:49,271 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 01:40:49,284 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d340117-805a-4298-9e23-ecfbd1f1a2f6/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:40:49,302 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d340117-805a-4298-9e23-ecfbd1f1a2f6/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-21 01:40:49,318 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d340117-805a-4298-9e23-ecfbd1f1a2f6/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-21 01:40:49,473 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock_of_tb_ring [2021-11-21 01:40:49,474 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock_of_tb_ring [2021-11-21 01:40:49,474 INFO L130 BoogieDeclarations]: Found specification of procedure thunderbolt_shutdown_and_free [2021-11-21 01:40:49,474 INFO L138 BoogieDeclarations]: Found implementation of procedure thunderbolt_shutdown_and_free [2021-11-21 01:40:49,474 INFO L130 BoogieDeclarations]: Found specification of procedure list_splice_tail_init [2021-11-21 01:40:49,475 INFO L138 BoogieDeclarations]: Found implementation of procedure list_splice_tail_init [2021-11-21 01:40:49,475 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-21 01:40:49,475 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-21 01:40:49,475 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-21 01:40:49,475 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-21 01:40:49,475 INFO L130 BoogieDeclarations]: Found specification of procedure tb_eeprom_get_drom_offset [2021-11-21 01:40:49,476 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_eeprom_get_drom_offset [2021-11-21 01:40:49,476 INFO L130 BoogieDeclarations]: Found specification of procedure tb_switch_free [2021-11-21 01:40:49,476 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_switch_free [2021-11-21 01:40:49,476 INFO L130 BoogieDeclarations]: Found specification of procedure activate_work_1 [2021-11-21 01:40:49,476 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_work_1 [2021-11-21 01:40:49,476 INFO L130 BoogieDeclarations]: Found specification of procedure ring_iowrite32options [2021-11-21 01:40:49,477 INFO L138 BoogieDeclarations]: Found implementation of procedure ring_iowrite32options [2021-11-21 01:40:49,477 INFO L130 BoogieDeclarations]: Found specification of procedure ring_interrupt_active [2021-11-21 01:40:49,477 INFO L138 BoogieDeclarations]: Found implementation of procedure ring_interrupt_active [2021-11-21 01:40:49,477 INFO L130 BoogieDeclarations]: Found specification of procedure tb_ctl_rx_submit [2021-11-21 01:40:49,477 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_ctl_rx_submit [2021-11-21 01:40:49,477 INFO L130 BoogieDeclarations]: Found specification of procedure nhi_disable_interrupts [2021-11-21 01:40:49,478 INFO L138 BoogieDeclarations]: Found implementation of procedure nhi_disable_interrupts [2021-11-21 01:40:49,478 INFO L130 BoogieDeclarations]: Found specification of procedure get_route [2021-11-21 01:40:49,478 INFO L138 BoogieDeclarations]: Found implementation of procedure get_route [2021-11-21 01:40:49,478 INFO L130 BoogieDeclarations]: Found specification of procedure check_header [2021-11-21 01:40:49,478 INFO L138 BoogieDeclarations]: Found implementation of procedure check_header [2021-11-21 01:40:49,478 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2021-11-21 01:40:49,479 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2021-11-21 01:40:49,479 INFO L130 BoogieDeclarations]: Found specification of procedure tb_activate_pcie_devices [2021-11-21 01:40:49,479 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_activate_pcie_devices [2021-11-21 01:40:49,479 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2021-11-21 01:40:49,479 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2021-11-21 01:40:49,479 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2021-11-21 01:40:49,480 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2021-11-21 01:40:49,480 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_lock_of_tb_ring [2021-11-21 01:40:49,480 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_lock_of_tb_ring [2021-11-21 01:40:49,480 INFO L130 BoogieDeclarations]: Found specification of procedure tb_cfg_read_raw [2021-11-21 01:40:49,481 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_cfg_read_raw [2021-11-21 01:40:49,481 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-21 01:40:49,481 INFO L130 BoogieDeclarations]: Found specification of procedure tb_cap_is_long [2021-11-21 01:40:49,481 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_cap_is_long [2021-11-21 01:40:49,481 INFO L130 BoogieDeclarations]: Found specification of procedure tb_sw_set_unpplugged [2021-11-21 01:40:49,481 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_sw_set_unpplugged [2021-11-21 01:40:49,482 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-11-21 01:40:49,482 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-11-21 01:40:49,482 INFO L130 BoogieDeclarations]: Found specification of procedure tb_crc8 [2021-11-21 01:40:49,483 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_crc8 [2021-11-21 01:40:49,483 INFO L130 BoogieDeclarations]: Found specification of procedure ring_write_descriptors [2021-11-21 01:40:49,484 INFO L138 BoogieDeclarations]: Found implementation of procedure ring_write_descriptors [2021-11-21 01:40:49,484 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-21 01:40:49,484 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-21 01:40:49,484 INFO L130 BoogieDeclarations]: Found specification of procedure tb_plug_events_active [2021-11-21 01:40:49,485 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_plug_events_active [2021-11-21 01:40:49,485 INFO L130 BoogieDeclarations]: Found specification of procedure flush_work [2021-11-21 01:40:49,485 INFO L138 BoogieDeclarations]: Found implementation of procedure flush_work [2021-11-21 01:40:49,485 INFO L130 BoogieDeclarations]: Found specification of procedure tb_ctl_stop [2021-11-21 01:40:49,485 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_ctl_stop [2021-11-21 01:40:49,486 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock_of_tb [2021-11-21 01:40:49,486 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock_of_tb [2021-11-21 01:40:49,486 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-21 01:40:49,486 INFO L130 BoogieDeclarations]: Found specification of procedure tb_cfg_print_error [2021-11-21 01:40:49,487 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_cfg_print_error [2021-11-21 01:40:49,487 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-21 01:40:49,487 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-21 01:40:49,487 INFO L130 BoogieDeclarations]: Found specification of procedure tb_port_add_nfc_credits [2021-11-21 01:40:49,487 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_port_add_nfc_credits [2021-11-21 01:40:49,487 INFO L130 BoogieDeclarations]: Found specification of procedure list_move_tail [2021-11-21 01:40:49,488 INFO L138 BoogieDeclarations]: Found implementation of procedure list_move_tail [2021-11-21 01:40:49,488 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_destroy [2021-11-21 01:40:49,488 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_destroy [2021-11-21 01:40:49,488 INFO L130 BoogieDeclarations]: Found specification of procedure tb_ctl_start [2021-11-21 01:40:49,488 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_ctl_start [2021-11-21 01:40:49,488 INFO L130 BoogieDeclarations]: Found specification of procedure ring_start [2021-11-21 01:40:49,489 INFO L138 BoogieDeclarations]: Found implementation of procedure ring_start [2021-11-21 01:40:49,489 INFO L130 BoogieDeclarations]: Found specification of procedure ring_stop [2021-11-21 01:40:49,490 INFO L138 BoogieDeclarations]: Found implementation of procedure ring_stop [2021-11-21 01:40:49,490 INFO L130 BoogieDeclarations]: Found specification of procedure tb_cfg_write [2021-11-21 01:40:49,490 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_cfg_write [2021-11-21 01:40:49,490 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2021-11-21 01:40:49,491 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2021-11-21 01:40:49,491 INFO L130 BoogieDeclarations]: Found specification of procedure tb_cfg_read [2021-11-21 01:40:49,492 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_cfg_read [2021-11-21 01:40:49,492 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2021-11-21 01:40:49,492 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2021-11-21 01:40:49,492 INFO L130 BoogieDeclarations]: Found specification of procedure tb_path_free [2021-11-21 01:40:49,492 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_path_free [2021-11-21 01:40:49,493 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-21 01:40:49,493 INFO L130 BoogieDeclarations]: Found specification of procedure ring_interrupt_index [2021-11-21 01:40:49,494 INFO L138 BoogieDeclarations]: Found implementation of procedure ring_interrupt_index [2021-11-21 01:40:49,494 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2021-11-21 01:40:49,494 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2021-11-21 01:40:49,495 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-21 01:40:49,495 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-21 01:40:49,495 INFO L130 BoogieDeclarations]: Found specification of procedure tb_cap_is_basic [2021-11-21 01:40:49,495 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_cap_is_basic [2021-11-21 01:40:49,496 INFO L130 BoogieDeclarations]: Found specification of procedure tb_upstream_port [2021-11-21 01:40:49,496 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_upstream_port [2021-11-21 01:40:49,496 INFO L130 BoogieDeclarations]: Found specification of procedure __ring_enqueue [2021-11-21 01:40:49,496 INFO L138 BoogieDeclarations]: Found implementation of procedure __ring_enqueue [2021-11-21 01:40:49,496 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2021-11-21 01:40:49,497 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2021-11-21 01:40:49,497 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-11-21 01:40:49,497 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-11-21 01:40:49,497 INFO L130 BoogieDeclarations]: Found specification of procedure dev_name [2021-11-21 01:40:49,498 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_name [2021-11-21 01:40:49,498 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_lock_of_tb [2021-11-21 01:40:49,498 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_lock_of_tb [2021-11-21 01:40:49,498 INFO L130 BoogieDeclarations]: Found specification of procedure tb_ctl_rx [2021-11-21 01:40:49,499 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_ctl_rx [2021-11-21 01:40:49,500 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-21 01:40:49,502 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-21 01:40:49,502 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2021-11-21 01:40:49,503 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2021-11-21 01:40:49,503 INFO L130 BoogieDeclarations]: Found specification of procedure ring_desc_base [2021-11-21 01:40:49,504 INFO L138 BoogieDeclarations]: Found implementation of procedure ring_desc_base [2021-11-21 01:40:49,505 INFO L130 BoogieDeclarations]: Found specification of procedure nhi_shutdown [2021-11-21 01:40:49,505 INFO L138 BoogieDeclarations]: Found implementation of procedure nhi_shutdown [2021-11-21 01:40:49,506 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2021-11-21 01:40:49,506 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2021-11-21 01:40:49,512 INFO L130 BoogieDeclarations]: Found specification of procedure tb_scan_port [2021-11-21 01:40:49,512 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_scan_port [2021-11-21 01:40:49,512 INFO L130 BoogieDeclarations]: Found specification of procedure tb_eeprom_active [2021-11-21 01:40:49,513 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_eeprom_active [2021-11-21 01:40:49,513 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-21 01:40:49,513 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-21 01:40:49,513 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-21 01:40:49,513 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-21 01:40:49,513 INFO L130 BoogieDeclarations]: Found specification of procedure tb_eeprom_read_n [2021-11-21 01:40:49,514 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_eeprom_read_n [2021-11-21 01:40:49,514 INFO L130 BoogieDeclarations]: Found specification of procedure tb_ctl_tx [2021-11-21 01:40:49,514 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_ctl_tx [2021-11-21 01:40:49,514 INFO L130 BoogieDeclarations]: Found specification of procedure tb_sw_read [2021-11-21 01:40:49,514 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_sw_read [2021-11-21 01:40:49,514 INFO L130 BoogieDeclarations]: Found specification of procedure ring_work [2021-11-21 01:40:49,515 INFO L138 BoogieDeclarations]: Found implementation of procedure ring_work [2021-11-21 01:40:49,515 INFO L130 BoogieDeclarations]: Found specification of procedure devm_kmalloc [2021-11-21 01:40:49,515 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_kmalloc [2021-11-21 01:40:49,515 INFO L130 BoogieDeclarations]: Found specification of procedure ring_iowrite16desc [2021-11-21 01:40:49,515 INFO L138 BoogieDeclarations]: Found implementation of procedure ring_iowrite16desc [2021-11-21 01:40:49,515 INFO L130 BoogieDeclarations]: Found specification of procedure tb_ctl_pkg_free [2021-11-21 01:40:49,515 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_ctl_pkg_free [2021-11-21 01:40:49,516 INFO L130 BoogieDeclarations]: Found specification of procedure list_del_init [2021-11-21 01:40:49,516 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del_init [2021-11-21 01:40:49,516 INFO L130 BoogieDeclarations]: Found specification of procedure tb_find_cap [2021-11-21 01:40:49,516 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_find_cap [2021-11-21 01:40:49,516 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-11-21 01:40:49,516 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-11-21 01:40:49,517 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-11-21 01:40:49,517 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-11-21 01:40:49,517 INFO L130 BoogieDeclarations]: Found specification of procedure tb_path_deactivate [2021-11-21 01:40:49,517 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_path_deactivate [2021-11-21 01:40:49,517 INFO L130 BoogieDeclarations]: Found specification of procedure tb_eeprom_ctl_write [2021-11-21 01:40:49,517 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_eeprom_ctl_write [2021-11-21 01:40:49,518 INFO L130 BoogieDeclarations]: Found specification of procedure kcalloc [2021-11-21 01:40:49,518 INFO L138 BoogieDeclarations]: Found implementation of procedure kcalloc [2021-11-21 01:40:49,518 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-21 01:40:49,518 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-21 01:40:49,518 INFO L130 BoogieDeclarations]: Found specification of procedure tb_ctl_pkg_alloc [2021-11-21 01:40:49,518 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_ctl_pkg_alloc [2021-11-21 01:40:49,519 INFO L130 BoogieDeclarations]: Found specification of procedure nhi_suspend_noirq [2021-11-21 01:40:49,519 INFO L138 BoogieDeclarations]: Found implementation of procedure nhi_suspend_noirq [2021-11-21 01:40:49,519 INFO L130 BoogieDeclarations]: Found specification of procedure tb_eeprom_ctl_read [2021-11-21 01:40:49,519 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_eeprom_ctl_read [2021-11-21 01:40:49,519 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2021-11-21 01:40:49,519 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2021-11-21 01:40:49,519 INFO L130 BoogieDeclarations]: Found specification of procedure tb_pci_port_active [2021-11-21 01:40:49,520 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_pci_port_active [2021-11-21 01:40:49,520 INFO L130 BoogieDeclarations]: Found specification of procedure tb_switch_suspend [2021-11-21 01:40:49,520 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_switch_suspend [2021-11-21 01:40:49,520 INFO L130 BoogieDeclarations]: Found specification of procedure tb_path_alloc [2021-11-21 01:40:49,520 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_path_alloc [2021-11-21 01:40:49,520 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2021-11-21 01:40:49,521 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2021-11-21 01:40:49,521 INFO L130 BoogieDeclarations]: Found specification of procedure tb_drom_read_uid_only [2021-11-21 01:40:49,521 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_drom_read_uid_only [2021-11-21 01:40:49,521 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-21 01:40:49,521 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-11-21 01:40:49,521 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-11-21 01:40:49,522 INFO L130 BoogieDeclarations]: Found specification of procedure tb_port_write [2021-11-21 01:40:49,522 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_port_write [2021-11-21 01:40:49,522 INFO L130 BoogieDeclarations]: Found specification of procedure tb_path_activate [2021-11-21 01:40:49,522 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_path_activate [2021-11-21 01:40:49,522 INFO L130 BoogieDeclarations]: Found specification of procedure nhi_interrupt_work [2021-11-21 01:40:49,522 INFO L138 BoogieDeclarations]: Found implementation of procedure nhi_interrupt_work [2021-11-21 01:40:49,523 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-21 01:40:49,523 INFO L130 BoogieDeclarations]: Found specification of procedure __list_del_entry [2021-11-21 01:40:49,523 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_del_entry [2021-11-21 01:40:49,523 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_work_1 [2021-11-21 01:40:49,523 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_work_1 [2021-11-21 01:40:49,523 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-21 01:40:49,524 INFO L130 BoogieDeclarations]: Found specification of procedure ring_iowrite32desc [2021-11-21 01:40:49,524 INFO L138 BoogieDeclarations]: Found implementation of procedure ring_iowrite32desc [2021-11-21 01:40:49,524 INFO L130 BoogieDeclarations]: Found specification of procedure tb_route_length [2021-11-21 01:40:49,524 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_route_length [2021-11-21 01:40:49,524 INFO L130 BoogieDeclarations]: Found specification of procedure nhi_resume_noirq [2021-11-21 01:40:49,524 INFO L138 BoogieDeclarations]: Found implementation of procedure nhi_resume_noirq [2021-11-21 01:40:49,524 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2021-11-21 01:40:49,525 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2021-11-21 01:40:49,525 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2021-11-21 01:40:49,525 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2021-11-21 01:40:49,525 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work_on [2021-11-21 01:40:49,525 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work_on [2021-11-21 01:40:49,525 INFO L130 BoogieDeclarations]: Found specification of procedure tb_switch_alloc [2021-11-21 01:40:49,526 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_switch_alloc [2021-11-21 01:40:49,526 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2021-11-21 01:40:49,526 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2021-11-21 01:40:49,526 INFO L130 BoogieDeclarations]: Found specification of procedure ring_free [2021-11-21 01:40:49,526 INFO L138 BoogieDeclarations]: Found implementation of procedure ring_free [2021-11-21 01:40:49,526 INFO L130 BoogieDeclarations]: Found specification of procedure flush_workqueue [2021-11-21 01:40:49,527 INFO L138 BoogieDeclarations]: Found implementation of procedure flush_workqueue [2021-11-21 01:40:49,527 INFO L130 BoogieDeclarations]: Found specification of procedure ring_iowrite64desc [2021-11-21 01:40:49,527 INFO L138 BoogieDeclarations]: Found implementation of procedure ring_iowrite64desc [2021-11-21 01:40:49,527 INFO L130 BoogieDeclarations]: Found specification of procedure __tb_path_deallocate_nfc [2021-11-21 01:40:49,527 INFO L138 BoogieDeclarations]: Found implementation of procedure __tb_path_deallocate_nfc [2021-11-21 01:40:49,527 INFO L130 BoogieDeclarations]: Found specification of procedure tb_free_unplugged_children [2021-11-21 01:40:49,528 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_free_unplugged_children [2021-11-21 01:40:49,528 INFO L130 BoogieDeclarations]: Found specification of procedure tb_crc [2021-11-21 01:40:49,528 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_crc [2021-11-21 01:40:49,528 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2021-11-21 01:40:49,528 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2021-11-21 01:40:49,528 INFO L130 BoogieDeclarations]: Found specification of procedure tb_switch_resume [2021-11-21 01:40:49,529 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_switch_resume [2021-11-21 01:40:49,529 INFO L130 BoogieDeclarations]: Found specification of procedure tb_wait_for_port [2021-11-21 01:40:49,529 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_wait_for_port [2021-11-21 01:40:49,529 INFO L130 BoogieDeclarations]: Found specification of procedure tb_scan_switch [2021-11-21 01:40:49,529 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_scan_switch [2021-11-21 01:40:49,529 INFO L130 BoogieDeclarations]: Found specification of procedure tb_pci_restart [2021-11-21 01:40:49,530 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_pci_restart [2021-11-21 01:40:49,530 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-21 01:40:49,530 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-21 01:40:49,530 INFO L130 BoogieDeclarations]: Found specification of procedure check_config_address [2021-11-21 01:40:49,530 INFO L138 BoogieDeclarations]: Found implementation of procedure check_config_address [2021-11-21 01:40:49,530 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-21 01:40:49,531 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-21 01:40:49,531 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-21 01:40:49,531 INFO L130 BoogieDeclarations]: Found specification of procedure __crc32c_le [2021-11-21 01:40:49,532 INFO L138 BoogieDeclarations]: Found implementation of procedure __crc32c_le [2021-11-21 01:40:49,537 INFO L130 BoogieDeclarations]: Found specification of procedure devm_kcalloc [2021-11-21 01:40:49,537 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_kcalloc [2021-11-21 01:40:49,537 INFO L130 BoogieDeclarations]: Found specification of procedure tb_ctl_free [2021-11-21 01:40:49,537 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_ctl_free [2021-11-21 01:40:49,537 INFO L130 BoogieDeclarations]: Found specification of procedure tb_path_is_invalid [2021-11-21 01:40:49,537 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_path_is_invalid [2021-11-21 01:40:49,538 INFO L130 BoogieDeclarations]: Found specification of procedure dev_driver_string [2021-11-21 01:40:49,538 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_driver_string [2021-11-21 01:40:49,538 INFO L130 BoogieDeclarations]: Found specification of procedure tb_eeprom_transfer [2021-11-21 01:40:49,539 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_eeprom_transfer [2021-11-21 01:40:49,541 INFO L130 BoogieDeclarations]: Found specification of procedure tb_pci_init_path [2021-11-21 01:40:49,541 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_pci_init_path [2021-11-21 01:40:49,541 INFO L130 BoogieDeclarations]: Found specification of procedure __tb_path_deactivate_hops [2021-11-21 01:40:49,541 INFO L138 BoogieDeclarations]: Found implementation of procedure __tb_path_deactivate_hops [2021-11-21 01:40:49,542 INFO L130 BoogieDeclarations]: Found specification of procedure tb_pci_free [2021-11-21 01:40:49,542 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_pci_free [2021-11-21 01:40:49,542 INFO L130 BoogieDeclarations]: Found specification of procedure tb_is_upstream_port [2021-11-21 01:40:49,542 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_is_upstream_port [2021-11-21 01:40:49,542 INFO L130 BoogieDeclarations]: Found specification of procedure ring_alloc [2021-11-21 01:40:49,542 INFO L138 BoogieDeclarations]: Found implementation of procedure ring_alloc [2021-11-21 01:40:49,543 INFO L130 BoogieDeclarations]: Found specification of procedure make_header [2021-11-21 01:40:49,543 INFO L138 BoogieDeclarations]: Found implementation of procedure make_header [2021-11-21 01:40:49,543 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2021-11-21 01:40:49,543 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2021-11-21 01:40:49,543 INFO L130 BoogieDeclarations]: Found specification of procedure tb_free_invalid_tunnels [2021-11-21 01:40:49,543 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_free_invalid_tunnels [2021-11-21 01:40:49,543 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_all_1 [2021-11-21 01:40:49,544 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_all_1 [2021-11-21 01:40:49,544 INFO L130 BoogieDeclarations]: Found specification of procedure tb_port_read [2021-11-21 01:40:49,544 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_port_read [2021-11-21 01:40:49,544 INFO L130 BoogieDeclarations]: Found specification of procedure tb_pci_deactivate [2021-11-21 01:40:49,544 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_pci_deactivate [2021-11-21 01:40:49,544 INFO L130 BoogieDeclarations]: Found specification of procedure tb_eeprom_out [2021-11-21 01:40:49,545 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_eeprom_out [2021-11-21 01:40:49,545 INFO L130 BoogieDeclarations]: Found specification of procedure tb_sw_write [2021-11-21 01:40:49,545 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_sw_write [2021-11-21 01:40:49,545 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_lock_of_tb_nhi [2021-11-21 01:40:49,545 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_lock_of_tb_nhi [2021-11-21 01:40:49,545 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-21 01:40:49,546 INFO L130 BoogieDeclarations]: Found specification of procedure tb_route [2021-11-21 01:40:49,546 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_route [2021-11-21 01:40:49,546 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock_of_tb_nhi [2021-11-21 01:40:49,546 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock_of_tb_nhi [2021-11-21 01:40:50,823 INFO L236 CfgBuilder]: Building ICFG [2021-11-21 01:40:50,882 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-21 01:40:51,529 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-21 01:41:09,138 INFO L277 CfgBuilder]: Performing block encoding [2021-11-21 01:41:10,914 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-21 01:41:10,914 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-21 01:41:10,922 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:41:10 BoogieIcfgContainer [2021-11-21 01:41:10,922 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-21 01:41:10,929 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-21 01:41:10,929 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-21 01:41:10,933 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-21 01:41:10,933 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 01:40:43" (1/3) ... [2021-11-21 01:41:10,934 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a6e5965 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 01:41:10, skipping insertion in model container [2021-11-21 01:41:10,935 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:40:48" (2/3) ... [2021-11-21 01:41:10,935 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a6e5965 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 01:41:10, skipping insertion in model container [2021-11-21 01:41:10,936 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:41:10" (3/3) ... [2021-11-21 01:41:10,937 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--thunderbolt--thunderbolt.ko-entry_point.cil.out.i [2021-11-21 01:41:10,944 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-21 01:41:10,944 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-21 01:41:11,030 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-21 01:41:11,050 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 [2021-11-21 01:41:11,055 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-21 01:41:11,158 INFO L276 IsEmpty]: Start isEmpty. Operand has 2147 states, 1312 states have (on average 1.3201219512195121) internal successors, (1732), 1359 states have internal predecessors, (1732), 701 states have call successors, (701), 133 states have call predecessors, (701), 132 states have return successors, (695), 691 states have call predecessors, (695), 695 states have call successors, (695) [2021-11-21 01:41:11,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-11-21 01:41:11,167 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:41:11,168 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:41:11,170 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:41:11,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:41:11,178 INFO L85 PathProgramCache]: Analyzing trace with hash -313975836, now seen corresponding path program 1 times [2021-11-21 01:41:11,190 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:41:11,190 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [296825193] [2021-11-21 01:41:11,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:41:11,192 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:41:11,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:41:11,999 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:41:11,999 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:41:12,000 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [296825193] [2021-11-21 01:41:12,001 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [296825193] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:41:12,001 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:41:12,002 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 01:41:12,004 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [831513328] [2021-11-21 01:41:12,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:41:12,018 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 01:41:12,018 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:41:12,049 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 01:41:12,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:41:12,059 INFO L87 Difference]: Start difference. First operand has 2147 states, 1312 states have (on average 1.3201219512195121) internal successors, (1732), 1359 states have internal predecessors, (1732), 701 states have call successors, (701), 133 states have call predecessors, (701), 132 states have return successors, (695), 691 states have call predecessors, (695), 695 states have call successors, (695) Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 3 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-11-21 01:41:14,910 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:41:17,000 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-21 01:41:21,088 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:41:23,301 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:41:25,670 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:41:26,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:41:26,513 INFO L93 Difference]: Finished difference Result 5604 states and 8532 transitions. [2021-11-21 01:41:26,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 01:41:26,516 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 3 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 26 [2021-11-21 01:41:26,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:41:26,581 INFO L225 Difference]: With dead ends: 5604 [2021-11-21 01:41:26,581 INFO L226 Difference]: Without dead ends: 3444 [2021-11-21 01:41:26,612 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:41:26,617 INFO L933 BasicCegarLoop]: 3347 mSDtfsCounter, 2910 mSDsluCounter, 2146 mSDsCounter, 0 mSdLazyCounter, 442 mSolverCounterSat, 4 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2912 SdHoareTripleChecker+Valid, 5312 SdHoareTripleChecker+Invalid, 451 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 442 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.9s IncrementalHoareTripleChecker+Time [2021-11-21 01:41:26,618 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2912 Valid, 5312 Invalid, 451 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4 Valid, 442 Invalid, 5 Unknown, 0 Unchecked, 13.9s Time] [2021-11-21 01:41:26,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3444 states. [2021-11-21 01:41:27,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3444 to 3433. [2021-11-21 01:41:27,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3433 states, 2105 states have (on average 1.3163895486935866) internal successors, (2771), 2173 states have internal predecessors, (2771), 1106 states have call successors, (1106), 231 states have call predecessors, (1106), 221 states have return successors, (1171), 1069 states have call predecessors, (1171), 1095 states have call successors, (1171) [2021-11-21 01:41:27,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3433 states to 3433 states and 5048 transitions. [2021-11-21 01:41:27,055 INFO L78 Accepts]: Start accepts. Automaton has 3433 states and 5048 transitions. Word has length 26 [2021-11-21 01:41:27,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:41:27,058 INFO L470 AbstractCegarLoop]: Abstraction has 3433 states and 5048 transitions. [2021-11-21 01:41:27,059 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 3 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-11-21 01:41:27,059 INFO L276 IsEmpty]: Start isEmpty. Operand 3433 states and 5048 transitions. [2021-11-21 01:41:27,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-21 01:41:27,066 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:41:27,066 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:41:27,066 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-21 01:41:27,067 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:41:27,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:41:27,068 INFO L85 PathProgramCache]: Analyzing trace with hash -516013163, now seen corresponding path program 1 times [2021-11-21 01:41:27,068 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:41:27,069 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [954510557] [2021-11-21 01:41:27,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:41:27,069 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:41:27,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:41:27,436 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:41:27,436 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:41:27,437 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [954510557] [2021-11-21 01:41:27,437 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [954510557] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:41:27,437 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:41:27,437 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 01:41:27,438 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1996205863] [2021-11-21 01:41:27,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:41:27,439 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 01:41:27,440 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:41:27,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 01:41:27,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:41:27,441 INFO L87 Difference]: Start difference. First operand 3433 states and 5048 transitions. Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-11-21 01:41:29,953 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-21 01:41:33,639 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:41:36,642 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:41:37,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:41:37,037 INFO L93 Difference]: Finished difference Result 10241 states and 15062 transitions. [2021-11-21 01:41:37,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 01:41:37,039 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 24 [2021-11-21 01:41:37,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:41:37,110 INFO L225 Difference]: With dead ends: 10241 [2021-11-21 01:41:37,110 INFO L226 Difference]: Without dead ends: 6811 [2021-11-21 01:41:37,139 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 [2021-11-21 01:41:37,145 INFO L933 BasicCegarLoop]: 3526 mSDtfsCounter, 3037 mSDsluCounter, 3082 mSDsCounter, 0 mSdLazyCounter, 503 mSolverCounterSat, 3 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3041 SdHoareTripleChecker+Valid, 6366 SdHoareTripleChecker+Invalid, 508 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 503 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.2s IncrementalHoareTripleChecker+Time [2021-11-21 01:41:37,147 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3041 Valid, 6366 Invalid, 508 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 503 Invalid, 2 Unknown, 0 Unchecked, 9.2s Time] [2021-11-21 01:41:37,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6811 states. [2021-11-21 01:41:37,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6811 to 6803. [2021-11-21 01:41:37,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6803 states, 4176 states have (on average 1.3144157088122606) internal successors, (5489), 4300 states have internal predecessors, (5489), 2185 states have call successors, (2185), 461 states have call predecessors, (2185), 441 states have return successors, (2331), 2123 states have call predecessors, (2331), 2174 states have call successors, (2331) [2021-11-21 01:41:37,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6803 states to 6803 states and 10005 transitions. [2021-11-21 01:41:37,625 INFO L78 Accepts]: Start accepts. Automaton has 6803 states and 10005 transitions. Word has length 24 [2021-11-21 01:41:37,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:41:37,626 INFO L470 AbstractCegarLoop]: Abstraction has 6803 states and 10005 transitions. [2021-11-21 01:41:37,627 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-11-21 01:41:37,627 INFO L276 IsEmpty]: Start isEmpty. Operand 6803 states and 10005 transitions. [2021-11-21 01:41:37,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-11-21 01:41:37,633 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:41:37,633 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:41:37,633 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-21 01:41:37,633 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:41:37,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:41:37,634 INFO L85 PathProgramCache]: Analyzing trace with hash 492728314, now seen corresponding path program 1 times [2021-11-21 01:41:37,635 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:41:37,636 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1164711962] [2021-11-21 01:41:37,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:41:37,637 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:41:37,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:41:37,822 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:41:37,822 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:41:37,822 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1164711962] [2021-11-21 01:41:37,822 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1164711962] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:41:37,823 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:41:37,823 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 01:41:37,823 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2015290779] [2021-11-21 01:41:37,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:41:37,824 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 01:41:37,824 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:41:37,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 01:41:37,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:41:37,826 INFO L87 Difference]: Start difference. First operand 6803 states and 10005 transitions. Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-11-21 01:41:40,644 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:41:42,738 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:41:48,736 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:41:49,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:41:49,286 INFO L93 Difference]: Finished difference Result 18169 states and 26594 transitions. [2021-11-21 01:41:49,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 01:41:49,287 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 30 [2021-11-21 01:41:49,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:41:49,385 INFO L225 Difference]: With dead ends: 18169 [2021-11-21 01:41:49,385 INFO L226 Difference]: Without dead ends: 11369 [2021-11-21 01:41:49,431 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 [2021-11-21 01:41:49,432 INFO L933 BasicCegarLoop]: 3746 mSDtfsCounter, 2138 mSDsluCounter, 3083 mSDsCounter, 0 mSdLazyCounter, 544 mSolverCounterSat, 3 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2140 SdHoareTripleChecker+Valid, 6589 SdHoareTripleChecker+Invalid, 550 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 544 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.9s IncrementalHoareTripleChecker+Time [2021-11-21 01:41:49,432 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2140 Valid, 6589 Invalid, 550 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 544 Invalid, 3 Unknown, 0 Unchecked, 10.9s Time] [2021-11-21 01:41:49,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11369 states. [2021-11-21 01:41:50,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11369 to 11345. [2021-11-21 01:41:50,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11345 states, 6968 states have (on average 1.3101320321469576) internal successors, (9129), 7160 states have internal predecessors, (9129), 3587 states have call successors, (3587), 827 states have call predecessors, (3587), 789 states have return successors, (3843), 3485 states have call predecessors, (3843), 3576 states have call successors, (3843) [2021-11-21 01:41:50,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11345 states to 11345 states and 16559 transitions. [2021-11-21 01:41:50,256 INFO L78 Accepts]: Start accepts. Automaton has 11345 states and 16559 transitions. Word has length 30 [2021-11-21 01:41:50,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:41:50,256 INFO L470 AbstractCegarLoop]: Abstraction has 11345 states and 16559 transitions. [2021-11-21 01:41:50,257 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-11-21 01:41:50,258 INFO L276 IsEmpty]: Start isEmpty. Operand 11345 states and 16559 transitions. [2021-11-21 01:41:50,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-11-21 01:41:50,260 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:41:50,264 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:41:50,265 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-21 01:41:50,265 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:41:50,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:41:50,266 INFO L85 PathProgramCache]: Analyzing trace with hash 186063483, now seen corresponding path program 1 times [2021-11-21 01:41:50,266 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:41:50,267 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [452461784] [2021-11-21 01:41:50,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:41:50,267 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:41:50,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:41:50,504 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:41:50,504 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:41:50,504 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [452461784] [2021-11-21 01:41:50,505 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [452461784] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:41:50,505 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:41:50,505 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 01:41:50,505 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1708707789] [2021-11-21 01:41:50,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:41:50,507 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 01:41:50,508 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:41:50,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 01:41:50,509 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:41:50,509 INFO L87 Difference]: Start difference. First operand 11345 states and 16559 transitions. Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 3 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-11-21 01:41:53,031 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:41:55,135 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-21 01:41:59,573 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:42:00,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:42:00,789 INFO L93 Difference]: Finished difference Result 12384 states and 17849 transitions. [2021-11-21 01:42:00,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 01:42:00,790 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 3 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 29 [2021-11-21 01:42:00,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:42:00,871 INFO L225 Difference]: With dead ends: 12384 [2021-11-21 01:42:00,871 INFO L226 Difference]: Without dead ends: 12380 [2021-11-21 01:42:00,878 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:42:00,879 INFO L933 BasicCegarLoop]: 2983 mSDtfsCounter, 2756 mSDsluCounter, 901 mSDsCounter, 0 mSdLazyCounter, 345 mSolverCounterSat, 2 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2760 SdHoareTripleChecker+Valid, 3795 SdHoareTripleChecker+Invalid, 350 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 345 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.8s IncrementalHoareTripleChecker+Time [2021-11-21 01:42:00,879 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2760 Valid, 3795 Invalid, 350 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 345 Invalid, 3 Unknown, 0 Unchecked, 9.8s Time] [2021-11-21 01:42:00,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12380 states. [2021-11-21 01:42:01,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12380 to 12372. [2021-11-21 01:42:01,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12372 states, 7562 states have (on average 1.3001851362073527) internal successors, (9832), 7762 states have internal predecessors, (9832), 3860 states have call successors, (3860), 991 states have call predecessors, (3860), 949 states have return successors, (4135), 3757 states have call predecessors, (4135), 3851 states have call successors, (4135) [2021-11-21 01:42:01,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12372 states to 12372 states and 17827 transitions. [2021-11-21 01:42:01,575 INFO L78 Accepts]: Start accepts. Automaton has 12372 states and 17827 transitions. Word has length 29 [2021-11-21 01:42:01,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:42:01,576 INFO L470 AbstractCegarLoop]: Abstraction has 12372 states and 17827 transitions. [2021-11-21 01:42:01,576 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 3 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-11-21 01:42:01,576 INFO L276 IsEmpty]: Start isEmpty. Operand 12372 states and 17827 transitions. [2021-11-21 01:42:01,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-11-21 01:42:01,579 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:42:01,579 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:42:01,579 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-21 01:42:01,580 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:42:01,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:42:01,583 INFO L85 PathProgramCache]: Analyzing trace with hash 1556024915, now seen corresponding path program 1 times [2021-11-21 01:42:01,583 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:42:01,586 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2128754134] [2021-11-21 01:42:01,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:42:01,586 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:42:01,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:42:01,772 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:42:01,772 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:42:01,772 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2128754134] [2021-11-21 01:42:01,772 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2128754134] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:42:01,772 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:42:01,773 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 01:42:01,773 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [785685981] [2021-11-21 01:42:01,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:42:01,773 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 01:42:01,774 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:42:01,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 01:42:01,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:42:01,774 INFO L87 Difference]: Start difference. First operand 12372 states and 17827 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 3 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-11-21 01:42:04,145 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-21 01:42:07,786 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:42:09,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:42:09,768 INFO L93 Difference]: Finished difference Result 12458 states and 17902 transitions. [2021-11-21 01:42:09,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 01:42:09,769 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 3 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 29 [2021-11-21 01:42:09,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:42:09,835 INFO L225 Difference]: With dead ends: 12458 [2021-11-21 01:42:09,835 INFO L226 Difference]: Without dead ends: 12455 [2021-11-21 01:42:09,846 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 [2021-11-21 01:42:09,852 INFO L933 BasicCegarLoop]: 2976 mSDtfsCounter, 3048 mSDsluCounter, 595 mSDsCounter, 0 mSdLazyCounter, 309 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3052 SdHoareTripleChecker+Valid, 3511 SdHoareTripleChecker+Invalid, 311 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 309 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.6s IncrementalHoareTripleChecker+Time [2021-11-21 01:42:09,853 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3052 Valid, 3511 Invalid, 311 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 309 Invalid, 2 Unknown, 0 Unchecked, 7.6s Time] [2021-11-21 01:42:09,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12455 states. [2021-11-21 01:42:10,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12455 to 12451. [2021-11-21 01:42:10,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12451 states, 7607 states have (on average 1.2986722755356908) internal successors, (9879), 7805 states have internal predecessors, (9879), 3870 states have call successors, (3870), 1016 states have call predecessors, (3870), 973 states have return successors, (4146), 3768 states have call predecessors, (4146), 3862 states have call successors, (4146) [2021-11-21 01:42:10,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12451 states to 12451 states and 17895 transitions. [2021-11-21 01:42:10,611 INFO L78 Accepts]: Start accepts. Automaton has 12451 states and 17895 transitions. Word has length 29 [2021-11-21 01:42:10,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:42:10,612 INFO L470 AbstractCegarLoop]: Abstraction has 12451 states and 17895 transitions. [2021-11-21 01:42:10,612 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 3 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-11-21 01:42:10,613 INFO L276 IsEmpty]: Start isEmpty. Operand 12451 states and 17895 transitions. [2021-11-21 01:42:10,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-11-21 01:42:10,616 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:42:10,616 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:42:10,616 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-21 01:42:10,617 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:42:10,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:42:10,617 INFO L85 PathProgramCache]: Analyzing trace with hash 990949031, now seen corresponding path program 1 times [2021-11-21 01:42:10,618 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:42:10,618 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1389606879] [2021-11-21 01:42:10,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:42:10,618 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:42:10,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:42:10,761 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:42:10,761 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:42:10,762 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1389606879] [2021-11-21 01:42:10,762 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1389606879] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:42:10,762 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:42:10,762 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 01:42:10,762 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [964360309] [2021-11-21 01:42:10,763 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:42:10,763 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 01:42:10,763 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:42:10,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 01:42:10,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:42:10,764 INFO L87 Difference]: Start difference. First operand 12451 states and 17895 transitions. Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 3 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-11-21 01:42:13,322 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-21 01:42:19,299 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:42:19,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:42:19,782 INFO L93 Difference]: Finished difference Result 14022 states and 19838 transitions. [2021-11-21 01:42:19,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 01:42:19,783 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 3 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 30 [2021-11-21 01:42:19,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:42:19,855 INFO L225 Difference]: With dead ends: 14022 [2021-11-21 01:42:19,855 INFO L226 Difference]: Without dead ends: 14018 [2021-11-21 01:42:19,863 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 [2021-11-21 01:42:19,864 INFO L933 BasicCegarLoop]: 3028 mSDtfsCounter, 894 mSDsluCounter, 2637 mSDsCounter, 0 mSdLazyCounter, 455 mSolverCounterSat, 2 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 896 SdHoareTripleChecker+Valid, 5476 SdHoareTripleChecker+Invalid, 459 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 455 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.6s IncrementalHoareTripleChecker+Time [2021-11-21 01:42:19,865 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [896 Valid, 5476 Invalid, 459 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 455 Invalid, 2 Unknown, 0 Unchecked, 8.6s Time] [2021-11-21 01:42:19,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14018 states. [2021-11-21 01:42:20,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14018 to 14013. [2021-11-21 01:42:20,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14013 states, 8507 states have (on average 1.2891736217232868) internal successors, (10967), 8739 states have internal predecessors, (10967), 4288 states have call successors, (4288), 1266 states have call predecessors, (4288), 1217 states have return successors, (4566), 4178 states have call predecessors, (4566), 4282 states have call successors, (4566) [2021-11-21 01:42:20,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14013 states to 14013 states and 19821 transitions. [2021-11-21 01:42:20,716 INFO L78 Accepts]: Start accepts. Automaton has 14013 states and 19821 transitions. Word has length 30 [2021-11-21 01:42:20,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:42:20,717 INFO L470 AbstractCegarLoop]: Abstraction has 14013 states and 19821 transitions. [2021-11-21 01:42:20,718 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 3 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-11-21 01:42:20,718 INFO L276 IsEmpty]: Start isEmpty. Operand 14013 states and 19821 transitions. [2021-11-21 01:42:20,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-11-21 01:42:20,719 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:42:20,719 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:42:20,720 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-21 01:42:20,720 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:42:20,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:42:20,721 INFO L85 PathProgramCache]: Analyzing trace with hash 882554201, now seen corresponding path program 1 times [2021-11-21 01:42:20,721 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:42:20,721 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1618309291] [2021-11-21 01:42:20,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:42:20,721 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:42:20,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:42:20,877 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:42:20,877 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:42:20,878 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1618309291] [2021-11-21 01:42:20,878 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1618309291] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:42:20,878 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:42:20,878 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 01:42:20,878 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1267826056] [2021-11-21 01:42:20,878 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:42:20,879 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 01:42:20,879 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:42:20,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 01:42:20,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:42:20,880 INFO L87 Difference]: Start difference. First operand 14013 states and 19821 transitions. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 3 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-11-21 01:42:23,476 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:42:25,585 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:42:27,535 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:42:28,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:42:28,191 INFO L93 Difference]: Finished difference Result 14019 states and 19825 transitions. [2021-11-21 01:42:28,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 01:42:28,191 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 3 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 33 [2021-11-21 01:42:28,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:42:28,257 INFO L225 Difference]: With dead ends: 14019 [2021-11-21 01:42:28,258 INFO L226 Difference]: Without dead ends: 14010 [2021-11-21 01:42:28,265 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 [2021-11-21 01:42:28,266 INFO L933 BasicCegarLoop]: 2971 mSDtfsCounter, 3041 mSDsluCounter, 595 mSDsCounter, 0 mSdLazyCounter, 309 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3043 SdHoareTripleChecker+Valid, 3506 SdHoareTripleChecker+Invalid, 310 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 309 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2021-11-21 01:42:28,267 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3043 Valid, 3506 Invalid, 310 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 309 Invalid, 1 Unknown, 0 Unchecked, 6.9s Time] [2021-11-21 01:42:28,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14010 states. [2021-11-21 01:42:29,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14010 to 14006. [2021-11-21 01:42:29,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14006 states, 8501 states have (on average 1.2885542877308551) internal successors, (10954), 8732 states have internal predecessors, (10954), 4287 states have call successors, (4287), 1266 states have call predecessors, (4287), 1217 states have return successors, (4566), 4178 states have call predecessors, (4566), 4282 states have call successors, (4566) [2021-11-21 01:42:29,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14006 states to 14006 states and 19807 transitions. [2021-11-21 01:42:29,106 INFO L78 Accepts]: Start accepts. Automaton has 14006 states and 19807 transitions. Word has length 33 [2021-11-21 01:42:29,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:42:29,107 INFO L470 AbstractCegarLoop]: Abstraction has 14006 states and 19807 transitions. [2021-11-21 01:42:29,107 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 3 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-11-21 01:42:29,107 INFO L276 IsEmpty]: Start isEmpty. Operand 14006 states and 19807 transitions. [2021-11-21 01:42:29,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-11-21 01:42:29,110 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:42:29,111 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:42:29,111 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-21 01:42:29,111 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:42:29,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:42:29,112 INFO L85 PathProgramCache]: Analyzing trace with hash -566758304, now seen corresponding path program 1 times [2021-11-21 01:42:29,113 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:42:29,113 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1849505981] [2021-11-21 01:42:29,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:42:29,113 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:42:29,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:42:29,258 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:42:29,258 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:42:29,259 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1849505981] [2021-11-21 01:42:29,259 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1849505981] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:42:29,259 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:42:29,259 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 01:42:29,259 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1469678057] [2021-11-21 01:42:29,259 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:42:29,260 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 01:42:29,260 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:42:29,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 01:42:29,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:42:29,261 INFO L87 Difference]: Start difference. First operand 14006 states and 19807 transitions. Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 3 states have call successors, (8), 3 states have call predecessors, (8), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-11-21 01:42:33,291 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:42:36,226 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:42:36,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:42:36,648 INFO L93 Difference]: Finished difference Result 14016 states and 19813 transitions. [2021-11-21 01:42:36,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 01:42:36,649 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), 3 states have call successors, (8), 3 states have call predecessors, (8), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 40 [2021-11-21 01:42:36,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:42:36,713 INFO L225 Difference]: With dead ends: 14016 [2021-11-21 01:42:36,713 INFO L226 Difference]: Without dead ends: 14013 [2021-11-21 01:42:36,721 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:42:36,722 INFO L933 BasicCegarLoop]: 2868 mSDtfsCounter, 340 mSDsluCounter, 2794 mSDsCounter, 0 mSdLazyCounter, 500 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 340 SdHoareTripleChecker+Valid, 5435 SdHoareTripleChecker+Invalid, 501 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 500 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2021-11-21 01:42:36,723 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [340 Valid, 5435 Invalid, 501 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 500 Invalid, 1 Unknown, 0 Unchecked, 6.9s Time] [2021-11-21 01:42:36,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14013 states. [2021-11-21 01:42:37,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14013 to 14003. [2021-11-21 01:42:37,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14003 states, 8499 states have (on average 1.2868572773267444) internal successors, (10937), 8729 states have internal predecessors, (10937), 4285 states have call successors, (4285), 1267 states have call predecessors, (4285), 1218 states have return successors, (4565), 4177 states have call predecessors, (4565), 4281 states have call successors, (4565) [2021-11-21 01:42:37,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14003 states to 14003 states and 19787 transitions. [2021-11-21 01:42:37,600 INFO L78 Accepts]: Start accepts. Automaton has 14003 states and 19787 transitions. Word has length 40 [2021-11-21 01:42:37,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:42:37,601 INFO L470 AbstractCegarLoop]: Abstraction has 14003 states and 19787 transitions. [2021-11-21 01:42:37,601 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), 3 states have call successors, (8), 3 states have call predecessors, (8), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-11-21 01:42:37,601 INFO L276 IsEmpty]: Start isEmpty. Operand 14003 states and 19787 transitions. [2021-11-21 01:42:37,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-11-21 01:42:37,605 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:42:37,606 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:42:37,606 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-21 01:42:37,606 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:42:37,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:42:37,607 INFO L85 PathProgramCache]: Analyzing trace with hash -1915382935, now seen corresponding path program 1 times [2021-11-21 01:42:37,607 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:42:37,607 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [193913454] [2021-11-21 01:42:37,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:42:37,608 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:42:37,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:42:37,821 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:42:37,822 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:42:37,822 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [193913454] [2021-11-21 01:42:37,822 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [193913454] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:42:37,822 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:42:37,822 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 01:42:37,823 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [296983656] [2021-11-21 01:42:37,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:42:37,825 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 01:42:37,825 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:42:37,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 01:42:37,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:42:37,826 INFO L87 Difference]: Start difference. First operand 14003 states and 19787 transitions. Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 3 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2021-11-21 01:42:40,568 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:42:43,800 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:42:45,918 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:42:46,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:42:46,386 INFO L93 Difference]: Finished difference Result 14183 states and 19925 transitions. [2021-11-21 01:42:46,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 01:42:46,388 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 3 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 47 [2021-11-21 01:42:46,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:42:46,461 INFO L225 Difference]: With dead ends: 14183 [2021-11-21 01:42:46,462 INFO L226 Difference]: Without dead ends: 14180 [2021-11-21 01:42:46,472 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:42:46,473 INFO L933 BasicCegarLoop]: 2840 mSDtfsCounter, 253 mSDsluCounter, 2834 mSDsCounter, 0 mSdLazyCounter, 483 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 253 SdHoareTripleChecker+Valid, 5448 SdHoareTripleChecker+Invalid, 485 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 483 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.1s IncrementalHoareTripleChecker+Time [2021-11-21 01:42:46,473 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [253 Valid, 5448 Invalid, 485 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 483 Invalid, 2 Unknown, 0 Unchecked, 8.1s Time] [2021-11-21 01:42:46,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14180 states. [2021-11-21 01:42:47,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14180 to 14180. [2021-11-21 01:42:47,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14180 states, 8596 states have (on average 1.2830386226151698) internal successors, (11029), 8825 states have internal predecessors, (11029), 4300 states have call successors, (4300), 1332 states have call predecessors, (4300), 1283 states have return successors, (4581), 4193 states have call predecessors, (4581), 4297 states have call successors, (4581) [2021-11-21 01:42:47,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14180 states to 14180 states and 19910 transitions. [2021-11-21 01:42:47,360 INFO L78 Accepts]: Start accepts. Automaton has 14180 states and 19910 transitions. Word has length 47 [2021-11-21 01:42:47,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:42:47,361 INFO L470 AbstractCegarLoop]: Abstraction has 14180 states and 19910 transitions. [2021-11-21 01:42:47,361 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 3 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2021-11-21 01:42:47,361 INFO L276 IsEmpty]: Start isEmpty. Operand 14180 states and 19910 transitions. [2021-11-21 01:42:47,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-11-21 01:42:47,368 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:42:47,368 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 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] [2021-11-21 01:42:47,369 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-21 01:42:47,369 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:42:47,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:42:47,370 INFO L85 PathProgramCache]: Analyzing trace with hash -2041219337, now seen corresponding path program 1 times [2021-11-21 01:42:47,370 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:42:47,370 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [489616203] [2021-11-21 01:42:47,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:42:47,370 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:42:47,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:42:47,544 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-21 01:42:47,544 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:42:47,544 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [489616203] [2021-11-21 01:42:47,545 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [489616203] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:42:47,545 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:42:47,545 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 01:42:47,545 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1158863271] [2021-11-21 01:42:47,545 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:42:47,546 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 01:42:47,546 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:42:47,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 01:42:47,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:42:47,547 INFO L87 Difference]: Start difference. First operand 14180 states and 19910 transitions. Second operand has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-11-21 01:42:50,356 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:42:52,479 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-21 01:42:57,195 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:42:59,332 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:42:59,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:42:59,755 INFO L93 Difference]: Finished difference Result 24422 states and 34245 transitions. [2021-11-21 01:42:59,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 01:42:59,757 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 68 [2021-11-21 01:42:59,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:42:59,817 INFO L225 Difference]: With dead ends: 24422 [2021-11-21 01:42:59,817 INFO L226 Difference]: Without dead ends: 10243 [2021-11-21 01:42:59,912 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 [2021-11-21 01:42:59,913 INFO L933 BasicCegarLoop]: 2834 mSDtfsCounter, 8 mSDsluCounter, 3075 mSDsCounter, 0 mSdLazyCounter, 497 mSolverCounterSat, 1 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 5663 SdHoareTripleChecker+Invalid, 502 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 497 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.7s IncrementalHoareTripleChecker+Time [2021-11-21 01:42:59,915 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8 Valid, 5663 Invalid, 502 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 497 Invalid, 4 Unknown, 0 Unchecked, 11.7s Time] [2021-11-21 01:42:59,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10243 states. [2021-11-21 01:43:00,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10243 to 10234. [2021-11-21 01:43:00,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10234 states, 6198 states have (on average 1.2799290093578575) internal successors, (7933), 6361 states have internal predecessors, (7933), 3096 states have call successors, (3096), 975 states have call predecessors, (3096), 939 states have return successors, (3296), 3019 states have call predecessors, (3296), 3093 states have call successors, (3296) [2021-11-21 01:43:00,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10234 states to 10234 states and 14325 transitions. [2021-11-21 01:43:00,583 INFO L78 Accepts]: Start accepts. Automaton has 10234 states and 14325 transitions. Word has length 68 [2021-11-21 01:43:00,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:43:00,584 INFO L470 AbstractCegarLoop]: Abstraction has 10234 states and 14325 transitions. [2021-11-21 01:43:00,584 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-11-21 01:43:00,584 INFO L276 IsEmpty]: Start isEmpty. Operand 10234 states and 14325 transitions. [2021-11-21 01:43:00,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-11-21 01:43:00,591 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:43:00,591 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:43:00,591 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-21 01:43:00,592 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:43:00,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:43:00,592 INFO L85 PathProgramCache]: Analyzing trace with hash 989123745, now seen corresponding path program 1 times [2021-11-21 01:43:00,593 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:43:00,593 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [800184578] [2021-11-21 01:43:00,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:43:00,593 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:43:00,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:43:00,861 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-11-21 01:43:00,861 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:43:00,861 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [800184578] [2021-11-21 01:43:00,861 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [800184578] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:43:00,862 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:43:00,862 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 01:43:00,862 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [217263030] [2021-11-21 01:43:00,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:43:00,862 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 01:43:00,863 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:43:00,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 01:43:00,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 01:43:00,863 INFO L87 Difference]: Start difference. First operand 10234 states and 14325 transitions. Second operand has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 3 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2021-11-21 01:43:03,952 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:43:06,078 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-21 01:43:09,908 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:43:14,732 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:43:17,148 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:43:20,178 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:43:20,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:43:20,713 INFO L93 Difference]: Finished difference Result 21660 states and 30312 transitions. [2021-11-21 01:43:20,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-21 01:43:20,715 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 3 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 80 [2021-11-21 01:43:20,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:43:20,794 INFO L225 Difference]: With dead ends: 21660 [2021-11-21 01:43:20,794 INFO L226 Difference]: Without dead ends: 14122 [2021-11-21 01:43:20,821 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-21 01:43:20,822 INFO L933 BasicCegarLoop]: 3763 mSDtfsCounter, 3360 mSDsluCounter, 6168 mSDsCounter, 0 mSdLazyCounter, 829 mSolverCounterSat, 122 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3377 SdHoareTripleChecker+Valid, 9481 SdHoareTripleChecker+Invalid, 955 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 122 IncrementalHoareTripleChecker+Valid, 829 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.1s IncrementalHoareTripleChecker+Time [2021-11-21 01:43:20,822 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3377 Valid, 9481 Invalid, 955 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [122 Valid, 829 Invalid, 4 Unknown, 0 Unchecked, 19.1s Time] [2021-11-21 01:43:20,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14122 states. [2021-11-21 01:43:21,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14122 to 14082. [2021-11-21 01:43:21,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14082 states, 8510 states have (on average 1.2782608695652173) internal successors, (10878), 8743 states have internal predecessors, (10878), 4274 states have call successors, (4274), 1346 states have call predecessors, (4274), 1297 states have return successors, (4544), 4166 states have call predecessors, (4544), 4271 states have call successors, (4544) [2021-11-21 01:43:21,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14082 states to 14082 states and 19696 transitions. [2021-11-21 01:43:21,708 INFO L78 Accepts]: Start accepts. Automaton has 14082 states and 19696 transitions. Word has length 80 [2021-11-21 01:43:21,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:43:21,709 INFO L470 AbstractCegarLoop]: Abstraction has 14082 states and 19696 transitions. [2021-11-21 01:43:21,709 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 3 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2021-11-21 01:43:21,709 INFO L276 IsEmpty]: Start isEmpty. Operand 14082 states and 19696 transitions. [2021-11-21 01:43:21,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2021-11-21 01:43:21,719 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:43:21,720 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:43:21,720 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-21 01:43:21,720 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:43:21,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:43:21,721 INFO L85 PathProgramCache]: Analyzing trace with hash 637117756, now seen corresponding path program 1 times [2021-11-21 01:43:21,721 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:43:21,721 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1620160925] [2021-11-21 01:43:21,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:43:21,722 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:43:21,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:43:22,049 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2021-11-21 01:43:22,049 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:43:22,050 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1620160925] [2021-11-21 01:43:22,050 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1620160925] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:43:22,050 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:43:22,050 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 01:43:22,051 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1984018402] [2021-11-21 01:43:22,051 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:43:22,052 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 01:43:22,052 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:43:22,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 01:43:22,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:43:22,053 INFO L87 Difference]: Start difference. First operand 14082 states and 19696 transitions. Second operand has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 3 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2021-11-21 01:43:24,813 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:43:28,153 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:43:30,263 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:43:31,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:43:31,328 INFO L93 Difference]: Finished difference Result 14093 states and 19711 transitions. [2021-11-21 01:43:31,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 01:43:31,329 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 3 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 87 [2021-11-21 01:43:31,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:43:31,370 INFO L225 Difference]: With dead ends: 14093 [2021-11-21 01:43:31,370 INFO L226 Difference]: Without dead ends: 14090 [2021-11-21 01:43:31,378 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:43:31,378 INFO L933 BasicCegarLoop]: 3211 mSDtfsCounter, 2596 mSDsluCounter, 1238 mSDsCounter, 0 mSdLazyCounter, 453 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2598 SdHoareTripleChecker+Valid, 4303 SdHoareTripleChecker+Invalid, 455 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 453 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.9s IncrementalHoareTripleChecker+Time [2021-11-21 01:43:31,379 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2598 Valid, 4303 Invalid, 455 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 453 Invalid, 2 Unknown, 0 Unchecked, 8.9s Time] [2021-11-21 01:43:31,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14090 states. [2021-11-21 01:43:31,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14090 to 14081. [2021-11-21 01:43:32,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14081 states, 8510 states have (on average 1.2773207990599296) internal successors, (10870), 8742 states have internal predecessors, (10870), 4273 states have call successors, (4273), 1346 states have call predecessors, (4273), 1297 states have return successors, (4544), 4166 states have call predecessors, (4544), 4271 states have call successors, (4544) [2021-11-21 01:43:32,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14081 states to 14081 states and 19687 transitions. [2021-11-21 01:43:32,045 INFO L78 Accepts]: Start accepts. Automaton has 14081 states and 19687 transitions. Word has length 87 [2021-11-21 01:43:32,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:43:32,046 INFO L470 AbstractCegarLoop]: Abstraction has 14081 states and 19687 transitions. [2021-11-21 01:43:32,046 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 3 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2021-11-21 01:43:32,046 INFO L276 IsEmpty]: Start isEmpty. Operand 14081 states and 19687 transitions. [2021-11-21 01:43:32,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 367 [2021-11-21 01:43:32,120 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:43:32,121 INFO L514 BasicCegarLoop]: trace histogram [14, 8, 5, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:43:32,121 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-21 01:43:32,121 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:43:32,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:43:32,122 INFO L85 PathProgramCache]: Analyzing trace with hash -1356414955, now seen corresponding path program 1 times [2021-11-21 01:43:32,122 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:43:32,122 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1519455864] [2021-11-21 01:43:32,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:43:32,123 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:43:32,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:43:32,375 INFO L134 CoverageAnalysis]: Checked inductivity of 334 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 322 trivial. 0 not checked. [2021-11-21 01:43:32,375 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:43:32,376 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1519455864] [2021-11-21 01:43:32,376 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1519455864] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:43:32,376 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:43:32,376 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 01:43:32,376 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1469922643] [2021-11-21 01:43:32,376 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:43:32,377 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 01:43:32,377 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:43:32,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 01:43:32,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:43:32,378 INFO L87 Difference]: Start difference. First operand 14081 states and 19687 transitions. Second operand has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 2 states have call successors, (65), 2 states have call predecessors, (65), 1 states have return successors, (56), 2 states have call predecessors, (56), 2 states have call successors, (56) [2021-11-21 01:43:35,198 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-21 01:43:40,882 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:43:41,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:43:41,304 INFO L93 Difference]: Finished difference Result 32516 states and 45278 transitions. [2021-11-21 01:43:41,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 01:43:41,305 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 2 states have call successors, (65), 2 states have call predecessors, (65), 1 states have return successors, (56), 2 states have call predecessors, (56), 2 states have call successors, (56) Word has length 366 [2021-11-21 01:43:41,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:43:41,487 INFO L225 Difference]: With dead ends: 32516 [2021-11-21 01:43:41,487 INFO L226 Difference]: Without dead ends: 18438 [2021-11-21 01:43:41,517 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:43:41,518 INFO L933 BasicCegarLoop]: 4332 mSDtfsCounter, 2697 mSDsluCounter, 3045 mSDsCounter, 0 mSdLazyCounter, 602 mSolverCounterSat, 2 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2701 SdHoareTripleChecker+Valid, 7151 SdHoareTripleChecker+Invalid, 606 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 602 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.3s IncrementalHoareTripleChecker+Time [2021-11-21 01:43:41,518 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2701 Valid, 7151 Invalid, 606 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 602 Invalid, 2 Unknown, 0 Unchecked, 8.3s Time] [2021-11-21 01:43:41,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18438 states. [2021-11-21 01:43:42,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18438 to 18373. [2021-11-21 01:43:42,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18373 states, 11093 states have (on average 1.274948165509781) internal successors, (14143), 11405 states have internal predecessors, (14143), 5523 states have call successors, (5523), 1814 states have call predecessors, (5523), 1756 states have return successors, (5847), 5389 states have call predecessors, (5847), 5521 states have call successors, (5847) [2021-11-21 01:43:42,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18373 states to 18373 states and 25513 transitions. [2021-11-21 01:43:42,440 INFO L78 Accepts]: Start accepts. Automaton has 18373 states and 25513 transitions. Word has length 366 [2021-11-21 01:43:42,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:43:42,441 INFO L470 AbstractCegarLoop]: Abstraction has 18373 states and 25513 transitions. [2021-11-21 01:43:42,441 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 2 states have call successors, (65), 2 states have call predecessors, (65), 1 states have return successors, (56), 2 states have call predecessors, (56), 2 states have call successors, (56) [2021-11-21 01:43:42,441 INFO L276 IsEmpty]: Start isEmpty. Operand 18373 states and 25513 transitions. [2021-11-21 01:43:42,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 391 [2021-11-21 01:43:42,530 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:43:42,531 INFO L514 BasicCegarLoop]: trace histogram [14, 8, 5, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:43:42,531 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-11-21 01:43:42,531 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:43:42,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:43:42,532 INFO L85 PathProgramCache]: Analyzing trace with hash -771088860, now seen corresponding path program 1 times [2021-11-21 01:43:42,532 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:43:42,532 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1735236685] [2021-11-21 01:43:42,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:43:42,533 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:43:42,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:43:42,792 INFO L134 CoverageAnalysis]: Checked inductivity of 348 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 332 trivial. 0 not checked. [2021-11-21 01:43:42,792 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:43:42,792 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1735236685] [2021-11-21 01:43:42,792 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1735236685] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:43:42,792 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:43:42,793 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 01:43:42,793 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [319523148] [2021-11-21 01:43:42,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:43:42,794 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 01:43:42,794 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:43:42,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 01:43:42,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 01:43:42,795 INFO L87 Difference]: Start difference. First operand 18373 states and 25513 transitions. Second operand has 4 states, 4 states have (on average 43.5) internal successors, (174), 4 states have internal predecessors, (174), 2 states have call successors, (66), 2 states have call predecessors, (66), 1 states have return successors, (57), 2 states have call predecessors, (57), 2 states have call successors, (57) [2021-11-21 01:43:48,979 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:43:50,844 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.86s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:43:53,236 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:43:53,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:43:53,617 INFO L93 Difference]: Finished difference Result 36259 states and 50402 transitions. [2021-11-21 01:43:53,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-21 01:43:53,619 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 43.5) internal successors, (174), 4 states have internal predecessors, (174), 2 states have call successors, (66), 2 states have call predecessors, (66), 1 states have return successors, (57), 2 states have call predecessors, (57), 2 states have call successors, (57) Word has length 390 [2021-11-21 01:43:53,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:43:53,706 INFO L225 Difference]: With dead ends: 36259 [2021-11-21 01:43:53,706 INFO L226 Difference]: Without dead ends: 18334 [2021-11-21 01:43:53,756 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 [2021-11-21 01:43:53,757 INFO L933 BasicCegarLoop]: 2836 mSDtfsCounter, 16 mSDsluCounter, 6154 mSDsCounter, 0 mSdLazyCounter, 755 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 8495 SdHoareTripleChecker+Invalid, 758 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 755 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.1s IncrementalHoareTripleChecker+Time [2021-11-21 01:43:53,758 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [16 Valid, 8495 Invalid, 758 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 755 Invalid, 2 Unknown, 0 Unchecked, 10.1s Time] [2021-11-21 01:43:53,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18334 states. [2021-11-21 01:43:54,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18334 to 18317. [2021-11-21 01:43:54,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18317 states, 11058 states have (on average 1.2750045216133117) internal successors, (14099), 11370 states have internal predecessors, (14099), 5511 states have call successors, (5511), 1805 states have call predecessors, (5511), 1747 states have return successors, (5835), 5377 states have call predecessors, (5835), 5509 states have call successors, (5835) [2021-11-21 01:43:54,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18317 states to 18317 states and 25445 transitions. [2021-11-21 01:43:54,679 INFO L78 Accepts]: Start accepts. Automaton has 18317 states and 25445 transitions. Word has length 390 [2021-11-21 01:43:54,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:43:54,680 INFO L470 AbstractCegarLoop]: Abstraction has 18317 states and 25445 transitions. [2021-11-21 01:43:54,680 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 43.5) internal successors, (174), 4 states have internal predecessors, (174), 2 states have call successors, (66), 2 states have call predecessors, (66), 1 states have return successors, (57), 2 states have call predecessors, (57), 2 states have call successors, (57) [2021-11-21 01:43:54,680 INFO L276 IsEmpty]: Start isEmpty. Operand 18317 states and 25445 transitions. [2021-11-21 01:43:54,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 402 [2021-11-21 01:43:54,723 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:43:54,724 INFO L514 BasicCegarLoop]: trace histogram [14, 8, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:43:54,724 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-11-21 01:43:54,725 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:43:54,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:43:54,725 INFO L85 PathProgramCache]: Analyzing trace with hash 275180176, now seen corresponding path program 1 times [2021-11-21 01:43:54,725 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:43:54,726 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1389571523] [2021-11-21 01:43:54,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:43:54,726 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:43:54,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:43:54,989 INFO L134 CoverageAnalysis]: Checked inductivity of 368 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 352 trivial. 0 not checked. [2021-11-21 01:43:54,990 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:43:54,990 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1389571523] [2021-11-21 01:43:54,990 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1389571523] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:43:54,990 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:43:54,990 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 01:43:54,991 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [929243382] [2021-11-21 01:43:54,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:43:54,993 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 01:43:54,993 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:43:54,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 01:43:54,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:43:54,994 INFO L87 Difference]: Start difference. First operand 18317 states and 25445 transitions. Second operand has 3 states, 3 states have (on average 58.0) internal successors, (174), 3 states have internal predecessors, (174), 3 states have call successors, (67), 2 states have call predecessors, (67), 1 states have return successors, (58), 3 states have call predecessors, (58), 3 states have call successors, (58) [2021-11-21 01:43:57,960 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:44:00,074 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-21 01:44:06,892 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.69s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:44:09,167 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:44:09,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:44:09,631 INFO L93 Difference]: Finished difference Result 42921 states and 59662 transitions. [2021-11-21 01:44:09,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 01:44:09,633 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.0) internal successors, (174), 3 states have internal predecessors, (174), 3 states have call successors, (67), 2 states have call predecessors, (67), 1 states have return successors, (58), 3 states have call predecessors, (58), 3 states have call successors, (58) Word has length 401 [2021-11-21 01:44:09,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:44:09,721 INFO L225 Difference]: With dead ends: 42921 [2021-11-21 01:44:09,721 INFO L226 Difference]: Without dead ends: 25058 [2021-11-21 01:44:09,776 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 [2021-11-21 01:44:09,777 INFO L933 BasicCegarLoop]: 4829 mSDtfsCounter, 2718 mSDsluCounter, 3042 mSDsCounter, 0 mSdLazyCounter, 654 mSolverCounterSat, 19 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2722 SdHoareTripleChecker+Valid, 7647 SdHoareTripleChecker+Invalid, 676 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 654 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.9s IncrementalHoareTripleChecker+Time [2021-11-21 01:44:09,777 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2722 Valid, 7647 Invalid, 676 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 654 Invalid, 3 Unknown, 0 Unchecked, 13.9s Time] [2021-11-21 01:44:09,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25058 states. [2021-11-21 01:44:10,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25058 to 25007. [2021-11-21 01:44:10,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25007 states, 15159 states have (on average 1.2791740880005278) internal successors, (19391), 15583 states have internal predecessors, (19391), 7448 states have call successors, (7448), 2477 states have call predecessors, (7448), 2399 states have return successors, (7880), 7267 states have call predecessors, (7880), 7446 states have call successors, (7880) [2021-11-21 01:44:11,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25007 states to 25007 states and 34719 transitions. [2021-11-21 01:44:11,007 INFO L78 Accepts]: Start accepts. Automaton has 25007 states and 34719 transitions. Word has length 401 [2021-11-21 01:44:11,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:44:11,007 INFO L470 AbstractCegarLoop]: Abstraction has 25007 states and 34719 transitions. [2021-11-21 01:44:11,007 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.0) internal successors, (174), 3 states have internal predecessors, (174), 3 states have call successors, (67), 2 states have call predecessors, (67), 1 states have return successors, (58), 3 states have call predecessors, (58), 3 states have call successors, (58) [2021-11-21 01:44:11,008 INFO L276 IsEmpty]: Start isEmpty. Operand 25007 states and 34719 transitions. [2021-11-21 01:44:11,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 421 [2021-11-21 01:44:11,071 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:44:11,072 INFO L514 BasicCegarLoop]: trace histogram [14, 8, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:44:11,072 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-11-21 01:44:11,072 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:44:11,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:44:11,073 INFO L85 PathProgramCache]: Analyzing trace with hash -558250334, now seen corresponding path program 1 times [2021-11-21 01:44:11,073 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:44:11,074 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1374623977] [2021-11-21 01:44:11,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:44:11,074 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:44:11,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:44:11,515 INFO L134 CoverageAnalysis]: Checked inductivity of 384 backedges. 12 proven. 34 refuted. 0 times theorem prover too weak. 338 trivial. 0 not checked. [2021-11-21 01:44:11,516 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:44:11,516 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1374623977] [2021-11-21 01:44:11,516 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1374623977] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-21 01:44:11,516 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [950775113] [2021-11-21 01:44:11,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:44:11,517 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:44:11,517 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d340117-805a-4298-9e23-ecfbd1f1a2f6/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:44:11,522 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d340117-805a-4298-9e23-ecfbd1f1a2f6/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 01:44:11,524 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d340117-805a-4298-9e23-ecfbd1f1a2f6/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-21 01:44:12,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:44:12,974 INFO L263 TraceCheckSpWp]: Trace formula consists of 4743 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-21 01:44:13,003 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 01:44:14,238 INFO L134 CoverageAnalysis]: Checked inductivity of 384 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 300 trivial. 0 not checked. [2021-11-21 01:44:14,238 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-21 01:44:14,239 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [950775113] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:44:14,239 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-21 01:44:14,239 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2021-11-21 01:44:14,240 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1523728882] [2021-11-21 01:44:14,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:44:14,241 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 01:44:14,241 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:44:14,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 01:44:14,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-11-21 01:44:14,242 INFO L87 Difference]: Start difference. First operand 25007 states and 34719 transitions. Second operand has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 3 states have internal predecessors, (176), 2 states have call successors, (64), 2 states have call predecessors, (64), 2 states have return successors, (56), 2 states have call predecessors, (56), 2 states have call successors, (56) [2021-11-21 01:44:16,751 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:44:20,037 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:44:23,012 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:44:23,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:44:23,491 INFO L93 Difference]: Finished difference Result 49575 states and 68913 transitions. [2021-11-21 01:44:23,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 01:44:23,493 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 3 states have internal predecessors, (176), 2 states have call successors, (64), 2 states have call predecessors, (64), 2 states have return successors, (56), 2 states have call predecessors, (56), 2 states have call successors, (56) Word has length 420 [2021-11-21 01:44:23,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:44:23,612 INFO L225 Difference]: With dead ends: 49575 [2021-11-21 01:44:23,612 INFO L226 Difference]: Without dead ends: 25022 [2021-11-21 01:44:23,710 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 429 GetRequests, 423 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-11-21 01:44:23,710 INFO L933 BasicCegarLoop]: 2832 mSDtfsCounter, 1 mSDsluCounter, 3076 mSDsCounter, 0 mSdLazyCounter, 500 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 5661 SdHoareTripleChecker+Invalid, 502 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 500 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.4s IncrementalHoareTripleChecker+Time [2021-11-21 01:44:23,711 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 5661 Invalid, 502 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 500 Invalid, 2 Unknown, 0 Unchecked, 8.4s Time] [2021-11-21 01:44:23,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25022 states. [2021-11-21 01:44:24,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25022 to 25012. [2021-11-21 01:44:24,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25012 states, 15164 states have (on average 1.2790820364020048) internal successors, (19396), 15588 states have internal predecessors, (19396), 7448 states have call successors, (7448), 2477 states have call predecessors, (7448), 2399 states have return successors, (7880), 7267 states have call predecessors, (7880), 7446 states have call successors, (7880) [2021-11-21 01:44:25,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25012 states to 25012 states and 34724 transitions. [2021-11-21 01:44:25,014 INFO L78 Accepts]: Start accepts. Automaton has 25012 states and 34724 transitions. Word has length 420 [2021-11-21 01:44:25,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:44:25,014 INFO L470 AbstractCegarLoop]: Abstraction has 25012 states and 34724 transitions. [2021-11-21 01:44:25,015 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 3 states have internal predecessors, (176), 2 states have call successors, (64), 2 states have call predecessors, (64), 2 states have return successors, (56), 2 states have call predecessors, (56), 2 states have call successors, (56) [2021-11-21 01:44:25,015 INFO L276 IsEmpty]: Start isEmpty. Operand 25012 states and 34724 transitions. [2021-11-21 01:44:25,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 458 [2021-11-21 01:44:25,206 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:44:25,206 INFO L514 BasicCegarLoop]: trace histogram [16, 8, 6, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:44:25,248 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d340117-805a-4298-9e23-ecfbd1f1a2f6/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-11-21 01:44:25,421 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d340117-805a-4298-9e23-ecfbd1f1a2f6/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2021-11-21 01:44:25,421 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:44:25,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:44:25,422 INFO L85 PathProgramCache]: Analyzing trace with hash 1699560076, now seen corresponding path program 1 times [2021-11-21 01:44:25,422 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:44:25,422 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [237253637] [2021-11-21 01:44:25,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:44:25,422 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:44:25,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:44:25,948 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 16 proven. 36 refuted. 0 times theorem prover too weak. 428 trivial. 0 not checked. [2021-11-21 01:44:25,949 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:44:25,949 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [237253637] [2021-11-21 01:44:25,949 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [237253637] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-21 01:44:25,949 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [362276430] [2021-11-21 01:44:25,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:44:25,949 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:44:25,950 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d340117-805a-4298-9e23-ecfbd1f1a2f6/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:44:25,952 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d340117-805a-4298-9e23-ecfbd1f1a2f6/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 01:44:25,975 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d340117-805a-4298-9e23-ecfbd1f1a2f6/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-21 01:44:27,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:44:27,426 INFO L263 TraceCheckSpWp]: Trace formula consists of 4947 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-21 01:44:27,444 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 01:44:28,781 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 128 proven. 1 refuted. 0 times theorem prover too weak. 351 trivial. 0 not checked. [2021-11-21 01:44:28,781 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 01:44:30,290 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 16 proven. 1 refuted. 0 times theorem prover too weak. 463 trivial. 0 not checked. [2021-11-21 01:44:30,290 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [362276430] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-21 01:44:30,290 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1434087091] [2021-11-21 01:44:30,321 INFO L159 IcfgInterpreter]: Started Sifa with 288 locations of interest [2021-11-21 01:44:30,321 INFO L166 IcfgInterpreter]: Building call graph [2021-11-21 01:44:30,327 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-21 01:44:30,333 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-21 01:44:30,333 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-21 01:44:35,622 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 16 [2021-11-21 01:44:41,526 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 16 [2021-11-21 01:44:46,792 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 16 [2021-11-21 01:44:48,719 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 16 [2021-11-21 01:44:50,532 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 16 [2021-11-21 01:44:55,911 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 16 [2021-11-21 01:44:56,496 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 16 [2021-11-21 01:45:43,452 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 [2021-11-21 01:45:43,473 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 [2021-11-21 01:45:43,542 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 6 [2021-11-21 01:45:49,243 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:49,246 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:49,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:49,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:49,253 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:49,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:49,259 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:49,263 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:49,266 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:49,268 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:49,271 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:49,274 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:49,276 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:49,279 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:49,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:49,284 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:49,287 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:49,289 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:49,292 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:49,294 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:49,297 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:49,299 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:49,302 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:49,304 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:49,316 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:49,320 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:49,322 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:49,324 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:49,327 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:49,330 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:49,334 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:49,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:49,340 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:49,343 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:49,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:49,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:49,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:49,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:49,359 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:49,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:49,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:49,368 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:49,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:49,374 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:49,377 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:49,380 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:49,383 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:49,386 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:49,389 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:49,392 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:49,395 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:49,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:49,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:49,403 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:49,407 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:49,410 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:49,412 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:49,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:49,418 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:49,421 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:49,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:49,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:49,431 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:49,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:49,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:49,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:49,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:49,442 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:49,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:49,449 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:49,451 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:49,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:49,456 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:49,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:49,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:49,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:49,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:49,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:49,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:49,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:49,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:49,478 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:49,480 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:49,482 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:49,484 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:49,487 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:49,489 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:49,491 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:49,494 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:49,496 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:49,499 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:49,501 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:49,504 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:49,506 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:49,508 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:49,511 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:49,513 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:49,515 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:49,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:49,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:49,522 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:49,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:49,526 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:49,528 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:49,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:49,534 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:49,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:49,539 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:49,542 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:49,544 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:49,546 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:49,549 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:49,552 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:49,554 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:49,557 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:49,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:49,562 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:49,565 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:49,567 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:49,570 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:49,572 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:49,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:49,577 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:49,579 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:49,582 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:49,584 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:49,586 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:49,589 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:49,591 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:49,594 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:49,596 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:49,598 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:49,601 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:49,603 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:49,605 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:49,608 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:49,610 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:49,612 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:49,615 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:49,617 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:49,619 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:49,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:49,624 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:49,626 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:49,629 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:49,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:49,634 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:49,636 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:49,638 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:49,641 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:49,643 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:49,645 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:49,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:49,650 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:49,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:49,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:49,657 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:49,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:49,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:49,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:49,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:49,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:49,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:49,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:49,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:49,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:49,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:49,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:49,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:49,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:49,691 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:49,694 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:49,696 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:49,698 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:49,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:49,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:49,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:49,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:49,710 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:49,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:49,715 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:49,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:49,719 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:49,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:49,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:49,726 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:49,729 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:49,731 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:49,734 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:49,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:49,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:49,741 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:49,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:49,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:49,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:49,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:49,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:49,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:49,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:49,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:49,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:49,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:49,769 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:49,771 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:49,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:49,776 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:49,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:49,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:49,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:49,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:49,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:49,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:49,794 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:49,796 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:49,798 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:49,801 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:49,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:49,806 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:49,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:49,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:49,813 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:49,815 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:49,818 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:49,820 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:49,822 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:49,825 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:49,827 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:49,830 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:49,832 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:49,834 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:49,837 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:49,839 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:49,842 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:49,844 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:49,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:49,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:49,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:49,854 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:49,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:49,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:49,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:49,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:49,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:49,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:49,871 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:49,873 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:49,876 INFO L244 Elim1Store]: Index analysis took 635 ms [2021-11-21 01:45:49,896 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 65 select indices, 65 select index equivalence classes, 307 disjoint index pairs (out of 2080 index pairs), introduced 65 new quantified variables, introduced 0 case distinctions, treesize of input 510 treesize of output 196 [2021-11-21 01:46:38,523 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:38,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:38,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:38,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:38,537 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:38,539 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:38,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:38,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:38,545 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:38,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:38,549 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:38,551 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:38,553 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:38,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:38,557 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:38,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:38,561 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:38,563 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:38,565 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:38,567 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:38,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:38,571 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:38,573 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:38,575 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:38,577 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:38,578 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:38,580 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:38,582 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:38,584 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:38,586 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:38,588 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:38,590 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:38,592 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:38,593 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:38,595 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:38,610 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:38,613 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:38,616 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:38,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:38,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:38,624 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:38,626 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:38,627 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:38,629 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:38,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:38,633 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:38,635 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:38,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:38,639 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:38,641 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:38,643 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:38,645 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:38,646 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:38,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:38,650 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:38,652 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:38,654 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:38,656 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:38,658 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:38,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:38,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:38,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:38,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:38,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:38,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:38,672 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:38,674 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:38,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:38,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:38,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:38,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:38,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:38,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:38,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:38,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:38,693 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:38,695 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:38,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:38,699 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:38,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:38,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:38,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:38,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:38,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:38,710 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:38,712 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:38,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:38,719 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:38,720 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:38,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:38,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:38,726 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:38,728 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:38,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:38,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:38,734 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:38,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:38,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:38,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:38,741 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:38,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:38,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:38,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:38,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:38,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:38,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:38,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:38,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:38,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:38,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:38,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:38,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:38,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:38,769 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:38,771 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:38,773 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:38,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:38,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:38,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:38,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:38,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:38,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:38,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:38,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:38,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:38,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:38,794 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:38,796 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:38,798 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:38,799 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:38,801 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:38,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:38,805 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:38,807 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:38,809 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:38,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:38,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:38,816 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:38,818 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:38,820 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:38,822 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:38,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:38,826 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:38,828 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:38,830 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:38,832 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:38,834 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:38,836 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:38,837 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:38,839 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:38,841 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:38,843 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:38,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:38,847 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:38,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:38,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:38,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:38,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:38,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:38,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:38,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:38,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:38,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:38,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:38,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:38,870 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:38,872 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:38,874 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:38,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:38,878 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:38,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:38,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:38,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:38,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:38,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:38,889 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:38,891 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:38,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:38,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:38,897 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:38,898 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:38,900 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:38,902 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:38,904 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:38,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:38,908 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:38,910 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:38,912 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:38,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:38,920 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:38,922 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:38,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:38,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:38,927 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:38,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:38,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:38,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:38,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:38,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:38,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:38,940 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:38,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:38,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:38,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:38,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:38,950 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:38,952 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:38,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:38,955 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:38,957 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:38,959 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:38,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:38,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:38,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:38,967 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:38,969 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:38,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:38,972 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:38,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:38,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:38,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:38,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:38,982 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:38,984 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:38,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:38,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:38,989 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:38,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:38,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:38,995 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:38,997 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:38,999 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:39,001 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:39,003 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:39,005 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:39,007 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:39,009 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:39,011 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:39,013 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:39,015 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:39,016 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:39,018 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:39,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:39,022 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:39,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:39,026 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:39,027 INFO L244 Elim1Store]: Index analysis took 506 ms [2021-11-21 01:46:39,035 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 65 select indices, 65 select index equivalence classes, 307 disjoint index pairs (out of 2080 index pairs), introduced 65 new quantified variables, introduced 0 case distinctions, treesize of input 510 treesize of output 196 [2021-11-21 01:48:23,530 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2021-11-21 01:48:24,331 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-21 01:48:31,343 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-21 01:48:41,653 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2021-11-21 01:48:51,157 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-21 01:48:52,076 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-21 01:49:53,463 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-21 01:49:54,430 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2021-11-21 01:49:58,513 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-21 01:50:27,605 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-21 01:50:30,920 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2021-11-21 01:50:31,562 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3