./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-43_2a-drivers--net--ethernet--smsc--smc91c92_cs.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b5237d83 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef71c76-290a-486a-8c84-9fc6951f5a3d/bin/utaipan-g80aRyZoba/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef71c76-290a-486a-8c84-9fc6951f5a3d/bin/utaipan-g80aRyZoba/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef71c76-290a-486a-8c84-9fc6951f5a3d/bin/utaipan-g80aRyZoba/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef71c76-290a-486a-8c84-9fc6951f5a3d/bin/utaipan-g80aRyZoba/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--smsc--smc91c92_cs.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef71c76-290a-486a-8c84-9fc6951f5a3d/bin/utaipan-g80aRyZoba/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef71c76-290a-486a-8c84-9fc6951f5a3d/bin/utaipan-g80aRyZoba --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 3ecfb8b0fcef33da98f558e52c103bea043ca8b7f1be39029ddcf57b060bd03a --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-b5237d8 [2022-11-22 01:49:36,241 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-22 01:49:36,243 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-22 01:49:36,264 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-22 01:49:36,265 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-22 01:49:36,266 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-22 01:49:36,268 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-22 01:49:36,270 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-22 01:49:36,271 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-22 01:49:36,272 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-22 01:49:36,274 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-22 01:49:36,275 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-22 01:49:36,275 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-22 01:49:36,277 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-22 01:49:36,278 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-22 01:49:36,279 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-22 01:49:36,280 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-22 01:49:36,281 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-22 01:49:36,283 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-22 01:49:36,285 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-22 01:49:36,287 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-22 01:49:36,296 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-22 01:49:36,302 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-22 01:49:36,303 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-22 01:49:36,307 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-22 01:49:36,314 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-22 01:49:36,315 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-22 01:49:36,316 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-22 01:49:36,316 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-22 01:49:36,318 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-22 01:49:36,318 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-22 01:49:36,319 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-22 01:49:36,320 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-22 01:49:36,323 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-22 01:49:36,324 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-22 01:49:36,325 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-22 01:49:36,327 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-22 01:49:36,327 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-22 01:49:36,328 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-22 01:49:36,330 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-22 01:49:36,332 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-22 01:49:36,333 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef71c76-290a-486a-8c84-9fc6951f5a3d/bin/utaipan-g80aRyZoba/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-22 01:49:36,372 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-22 01:49:36,376 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-22 01:49:36,377 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-22 01:49:36,377 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-22 01:49:36,378 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-22 01:49:36,379 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-22 01:49:36,379 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-22 01:49:36,379 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-22 01:49:36,379 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-22 01:49:36,380 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-22 01:49:36,381 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-22 01:49:36,381 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-22 01:49:36,381 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-22 01:49:36,381 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-22 01:49:36,382 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-22 01:49:36,382 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-22 01:49:36,382 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-22 01:49:36,382 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-22 01:49:36,383 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-22 01:49:36,384 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-22 01:49:36,384 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-22 01:49:36,384 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-22 01:49:36,384 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-22 01:49:36,384 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-22 01:49:36,385 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-22 01:49:36,385 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-22 01:49:36,385 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-22 01:49:36,385 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-22 01:49:36,386 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-22 01:49:36,386 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 01:49:36,387 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-22 01:49:36,387 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-22 01:49:36,387 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-22 01:49:36,387 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-22 01:49:36,388 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-22 01:49:36,388 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-22 01:49:36,389 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-22 01:49:36,389 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-22 01:49:36,389 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_2ef71c76-290a-486a-8c84-9fc6951f5a3d/bin/utaipan-g80aRyZoba/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef71c76-290a-486a-8c84-9fc6951f5a3d/bin/utaipan-g80aRyZoba Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3ecfb8b0fcef33da98f558e52c103bea043ca8b7f1be39029ddcf57b060bd03a [2022-11-22 01:49:36,663 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 01:49:36,685 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 01:49:36,688 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 01:49:36,689 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 01:49:36,690 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 01:49:36,691 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef71c76-290a-486a-8c84-9fc6951f5a3d/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--smsc--smc91c92_cs.ko-entry_point.cil.out.i [2022-11-22 01:49:40,002 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 01:49:40,759 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 01:49:40,760 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef71c76-290a-486a-8c84-9fc6951f5a3d/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--smsc--smc91c92_cs.ko-entry_point.cil.out.i [2022-11-22 01:49:40,811 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef71c76-290a-486a-8c84-9fc6951f5a3d/bin/utaipan-g80aRyZoba/data/a02f4f984/6b393ecf1eab432f8bc77f378952560e/FLAGb1d2540b6 [2022-11-22 01:49:40,829 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef71c76-290a-486a-8c84-9fc6951f5a3d/bin/utaipan-g80aRyZoba/data/a02f4f984/6b393ecf1eab432f8bc77f378952560e [2022-11-22 01:49:40,832 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 01:49:40,834 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 01:49:40,836 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 01:49:40,836 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 01:49:40,841 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 01:49:40,842 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:49:40" (1/1) ... [2022-11-22 01:49:40,843 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4623673f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:49:40, skipping insertion in model container [2022-11-22 01:49:40,844 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:49:40" (1/1) ... [2022-11-22 01:49:40,853 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 01:49:40,994 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 01:49:43,058 WARN L237 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_2ef71c76-290a-486a-8c84-9fc6951f5a3d/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--smsc--smc91c92_cs.ko-entry_point.cil.out.i[290722,290735] [2022-11-22 01:49:43,124 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 01:49:43,181 INFO L203 MainTranslator]: Completed pre-run [2022-11-22 01:49:43,711 WARN L237 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_2ef71c76-290a-486a-8c84-9fc6951f5a3d/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--smsc--smc91c92_cs.ko-entry_point.cil.out.i[290722,290735] [2022-11-22 01:49:43,730 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 01:49:44,035 INFO L208 MainTranslator]: Completed translation [2022-11-22 01:49:44,035 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:49:44 WrapperNode [2022-11-22 01:49:44,036 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-22 01:49:44,037 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-22 01:49:44,037 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-22 01:49:44,038 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-22 01:49:44,046 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:49:44" (1/1) ... [2022-11-22 01:49:44,165 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:49:44" (1/1) ... [2022-11-22 01:49:44,473 INFO L138 Inliner]: procedures = 235, calls = 2270, calls flagged for inlining = 117, calls inlined = 113, statements flattened = 5078 [2022-11-22 01:49:44,473 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-22 01:49:44,474 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-22 01:49:44,475 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-22 01:49:44,475 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-22 01:49:44,487 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:49:44" (1/1) ... [2022-11-22 01:49:44,487 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:49:44" (1/1) ... [2022-11-22 01:49:44,568 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:49:44" (1/1) ... [2022-11-22 01:49:44,580 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:49:44" (1/1) ... [2022-11-22 01:49:44,735 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:49:44" (1/1) ... [2022-11-22 01:49:44,774 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:49:44" (1/1) ... [2022-11-22 01:49:44,806 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:49:44" (1/1) ... [2022-11-22 01:49:44,827 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:49:44" (1/1) ... [2022-11-22 01:49:44,858 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-22 01:49:44,861 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-22 01:49:44,862 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-22 01:49:44,862 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-22 01:49:44,863 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:49:44" (1/1) ... [2022-11-22 01:49:44,871 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 01:49:44,885 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef71c76-290a-486a-8c84-9fc6951f5a3d/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:49:44,905 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef71c76-290a-486a-8c84-9fc6951f5a3d/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-22 01:49:44,943 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef71c76-290a-486a-8c84-9fc6951f5a3d/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-22 01:49:44,966 INFO L130 BoogieDeclarations]: Found specification of procedure smc_ioctl [2022-11-22 01:49:44,967 INFO L138 BoogieDeclarations]: Found implementation of procedure smc_ioctl [2022-11-22 01:49:44,967 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_write [2022-11-22 01:49:44,967 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_write [2022-11-22 01:49:44,968 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-22 01:49:44,968 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-22 01:49:44,968 INFO L130 BoogieDeclarations]: Found specification of procedure smc_hardware_send_packet [2022-11-22 01:49:44,969 INFO L138 BoogieDeclarations]: Found implementation of procedure smc_hardware_send_packet [2022-11-22 01:49:44,969 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-22 01:49:44,969 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-22 01:49:44,969 INFO L130 BoogieDeclarations]: Found specification of procedure smc91c92_detach [2022-11-22 01:49:44,970 INFO L138 BoogieDeclarations]: Found implementation of procedure smc91c92_detach [2022-11-22 01:49:44,970 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_present [2022-11-22 01:49:44,970 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_present [2022-11-22 01:49:44,970 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-11-22 01:49:44,971 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-11-22 01:49:44,971 INFO L130 BoogieDeclarations]: Found specification of procedure mhz_3288_power [2022-11-22 01:49:44,971 INFO L138 BoogieDeclarations]: Found implementation of procedure mhz_3288_power [2022-11-22 01:49:44,971 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2022-11-22 01:49:44,971 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2022-11-22 01:49:44,972 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-22 01:49:44,972 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-22 01:49:44,972 INFO L130 BoogieDeclarations]: Found specification of procedure pcmcia_request_io [2022-11-22 01:49:44,972 INFO L138 BoogieDeclarations]: Found implementation of procedure pcmcia_request_io [2022-11-22 01:49:44,973 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_restore [2022-11-22 01:49:44,973 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_restore [2022-11-22 01:49:44,974 INFO L130 BoogieDeclarations]: Found specification of procedure osi_load_firmware [2022-11-22 01:49:44,974 INFO L138 BoogieDeclarations]: Found implementation of procedure osi_load_firmware [2022-11-22 01:49:44,975 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-22 01:49:44,976 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-22 01:49:44,976 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-22 01:49:44,976 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-22 01:49:44,976 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-22 01:49:44,976 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-22 01:49:44,977 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-11-22 01:49:44,977 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-11-22 01:49:44,977 INFO L130 BoogieDeclarations]: Found specification of procedure smc_set_xcvr [2022-11-22 01:49:44,978 INFO L138 BoogieDeclarations]: Found implementation of procedure smc_set_xcvr [2022-11-22 01:49:44,978 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_1 [2022-11-22 01:49:44,978 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_1 [2022-11-22 01:49:44,978 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2022-11-22 01:49:44,978 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2022-11-22 01:49:44,979 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-22 01:49:44,979 INFO L130 BoogieDeclarations]: Found specification of procedure trace_hardirqs_off [2022-11-22 01:49:44,979 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_hardirqs_off [2022-11-22 01:49:44,979 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-11-22 01:49:44,980 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-11-22 01:49:44,980 INFO L130 BoogieDeclarations]: Found specification of procedure eth_mac_addr [2022-11-22 01:49:44,980 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_mac_addr [2022-11-22 01:49:44,981 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-22 01:49:44,981 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2022-11-22 01:49:44,982 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2022-11-22 01:49:44,982 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-11-22 01:49:44,982 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-11-22 01:49:44,982 INFO L130 BoogieDeclarations]: Found specification of procedure mot_config [2022-11-22 01:49:44,982 INFO L138 BoogieDeclarations]: Found implementation of procedure mot_config [2022-11-22 01:49:44,983 INFO L130 BoogieDeclarations]: Found specification of procedure smc91c92_resume [2022-11-22 01:49:44,983 INFO L138 BoogieDeclarations]: Found implementation of procedure smc91c92_resume [2022-11-22 01:49:44,984 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-11-22 01:49:44,984 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-11-22 01:49:44,984 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2022-11-22 01:49:44,985 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2022-11-22 01:49:44,985 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-22 01:49:44,985 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-22 01:49:44,985 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-22 01:49:44,985 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-22 01:49:44,986 INFO L130 BoogieDeclarations]: Found specification of procedure smc91c92_suspend [2022-11-22 01:49:44,986 INFO L138 BoogieDeclarations]: Found implementation of procedure smc91c92_suspend [2022-11-22 01:49:44,986 INFO L130 BoogieDeclarations]: Found specification of procedure check_sig [2022-11-22 01:49:44,986 INFO L138 BoogieDeclarations]: Found implementation of procedure check_sig [2022-11-22 01:49:44,986 INFO L130 BoogieDeclarations]: Found specification of procedure outw [2022-11-22 01:49:44,987 INFO L138 BoogieDeclarations]: Found implementation of procedure outw [2022-11-22 01:49:44,988 INFO L130 BoogieDeclarations]: Found specification of procedure eth_change_mtu [2022-11-22 01:49:44,988 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_change_mtu [2022-11-22 01:49:44,989 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-11-22 01:49:44,989 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-11-22 01:49:44,989 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2022-11-22 01:49:44,990 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2022-11-22 01:49:44,990 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-22 01:49:44,991 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-22 01:49:44,991 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_irq [2022-11-22 01:49:44,991 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_irq [2022-11-22 01:49:44,991 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_sync [2022-11-22 01:49:44,992 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_sync [2022-11-22 01:49:44,992 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-22 01:49:44,992 INFO L130 BoogieDeclarations]: Found specification of procedure set_rx_mode [2022-11-22 01:49:44,992 INFO L138 BoogieDeclarations]: Found implementation of procedure set_rx_mode [2022-11-22 01:49:44,992 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-11-22 01:49:44,993 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-11-22 01:49:44,993 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-11-22 01:49:44,993 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-11-22 01:49:44,993 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-11-22 01:49:44,995 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-11-22 01:49:44,995 INFO L130 BoogieDeclarations]: Found specification of procedure activate_suitable_timer_1 [2022-11-22 01:49:44,995 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_suitable_timer_1 [2022-11-22 01:49:44,995 INFO L130 BoogieDeclarations]: Found specification of procedure cvt_ascii_address [2022-11-22 01:49:44,996 INFO L138 BoogieDeclarations]: Found implementation of procedure cvt_ascii_address [2022-11-22 01:49:44,996 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-22 01:49:44,996 INFO L130 BoogieDeclarations]: Found specification of procedure __bitrev16 [2022-11-22 01:49:44,997 INFO L138 BoogieDeclarations]: Found implementation of procedure __bitrev16 [2022-11-22 01:49:44,997 INFO L130 BoogieDeclarations]: Found specification of procedure pcmcia_loop_tuple [2022-11-22 01:49:44,997 INFO L138 BoogieDeclarations]: Found implementation of procedure pcmcia_loop_tuple [2022-11-22 01:49:44,997 INFO L130 BoogieDeclarations]: Found specification of procedure smc91c92_release [2022-11-22 01:49:44,997 INFO L138 BoogieDeclarations]: Found implementation of procedure smc91c92_release [2022-11-22 01:49:44,998 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-22 01:49:44,998 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-22 01:49:44,998 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-11-22 01:49:44,998 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-11-22 01:49:44,999 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-22 01:49:44,999 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2022-11-22 01:49:45,000 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2022-11-22 01:49:45,004 INFO L130 BoogieDeclarations]: Found specification of procedure __bitrev8 [2022-11-22 01:49:45,004 INFO L138 BoogieDeclarations]: Found implementation of procedure __bitrev8 [2022-11-22 01:49:45,005 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-22 01:49:45,005 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-22 01:49:45,007 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-22 01:49:45,007 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-22 01:49:45,008 INFO L130 BoogieDeclarations]: Found specification of procedure pcmcia_loop_config [2022-11-22 01:49:45,009 INFO L138 BoogieDeclarations]: Found implementation of procedure pcmcia_loop_config [2022-11-22 01:49:45,009 INFO L130 BoogieDeclarations]: Found specification of procedure s9k_config [2022-11-22 01:49:45,014 INFO L138 BoogieDeclarations]: Found implementation of procedure s9k_config [2022-11-22 01:49:45,014 INFO L130 BoogieDeclarations]: Found specification of procedure smc_tx_timeout [2022-11-22 01:49:45,014 INFO L138 BoogieDeclarations]: Found implementation of procedure smc_tx_timeout [2022-11-22 01:49:45,014 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2022-11-22 01:49:45,014 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2022-11-22 01:49:45,015 INFO L130 BoogieDeclarations]: Found specification of procedure smc_reset [2022-11-22 01:49:45,015 INFO L138 BoogieDeclarations]: Found implementation of procedure smc_reset [2022-11-22 01:49:45,015 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-22 01:49:45,015 INFO L130 BoogieDeclarations]: Found specification of procedure writeb [2022-11-22 01:49:45,015 INFO L138 BoogieDeclarations]: Found implementation of procedure writeb [2022-11-22 01:49:45,016 INFO L130 BoogieDeclarations]: Found specification of procedure inw [2022-11-22 01:49:45,016 INFO L138 BoogieDeclarations]: Found implementation of procedure inw [2022-11-22 01:49:45,016 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2022-11-22 01:49:45,016 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2022-11-22 01:49:45,016 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_read [2022-11-22 01:49:45,017 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_read [2022-11-22 01:49:45,017 INFO L130 BoogieDeclarations]: Found specification of procedure readb [2022-11-22 01:49:45,017 INFO L138 BoogieDeclarations]: Found implementation of procedure readb [2022-11-22 01:49:45,017 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-22 01:49:45,017 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-22 01:49:45,830 INFO L235 CfgBuilder]: Building ICFG [2022-11-22 01:49:45,834 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-22 01:49:47,298 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-22 01:49:54,821 INFO L276 CfgBuilder]: Performing block encoding [2022-11-22 01:49:56,077 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-22 01:49:56,077 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-22 01:49:56,083 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:49:56 BoogieIcfgContainer [2022-11-22 01:49:56,083 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-22 01:49:56,086 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-22 01:49:56,086 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-22 01:49:56,090 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-22 01:49:56,090 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 01:49:40" (1/3) ... [2022-11-22 01:49:56,091 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@523d3374 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:49:56, skipping insertion in model container [2022-11-22 01:49:56,091 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:49:44" (2/3) ... [2022-11-22 01:49:56,091 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@523d3374 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:49:56, skipping insertion in model container [2022-11-22 01:49:56,092 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:49:56" (3/3) ... [2022-11-22 01:49:56,093 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--smsc--smc91c92_cs.ko-entry_point.cil.out.i [2022-11-22 01:49:56,117 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-22 01:49:56,118 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-22 01:49:56,224 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-22 01:49:56,234 INFO L357 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@5166e4a8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-22 01:49:56,234 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-22 01:49:56,252 INFO L276 IsEmpty]: Start isEmpty. Operand has 1159 states, 676 states have (on average 1.3387573964497042) internal successors, (905), 709 states have internal predecessors, (905), 418 states have call successors, (418), 64 states have call predecessors, (418), 63 states have return successors, (412), 405 states have call predecessors, (412), 412 states have call successors, (412) [2022-11-22 01:49:56,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2022-11-22 01:49:56,329 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:49:56,332 INFO L195 NwaCegarLoop]: trace histogram [11, 7, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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] [2022-11-22 01:49:56,333 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:49:56,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:49:56,342 INFO L85 PathProgramCache]: Analyzing trace with hash 2119262442, now seen corresponding path program 1 times [2022-11-22 01:49:56,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:49:56,355 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1939744835] [2022-11-22 01:49:56,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:49:56,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:49:57,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:49:58,728 INFO L134 CoverageAnalysis]: Checked inductivity of 289 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 289 trivial. 0 not checked. [2022-11-22 01:49:58,728 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:49:58,729 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1939744835] [2022-11-22 01:49:58,730 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1939744835] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:49:58,730 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:49:58,730 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 01:49:58,732 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1110419694] [2022-11-22 01:49:58,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:49:58,742 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 01:49:58,743 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:49:58,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 01:49:58,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-22 01:49:58,807 INFO L87 Difference]: Start difference. First operand has 1159 states, 676 states have (on average 1.3387573964497042) internal successors, (905), 709 states have internal predecessors, (905), 418 states have call successors, (418), 64 states have call predecessors, (418), 63 states have return successors, (412), 405 states have call predecessors, (412), 412 states have call successors, (412) Second operand has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (46), 2 states have call predecessors, (46), 1 states have return successors, (43), 2 states have call predecessors, (43), 2 states have call successors, (43) [2022-11-22 01:50:00,928 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:50:10,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:50:10,451 INFO L93 Difference]: Finished difference Result 4572 states and 6871 transitions. [2022-11-22 01:50:10,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 01:50:10,454 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (46), 2 states have call predecessors, (46), 1 states have return successors, (43), 2 states have call predecessors, (43), 2 states have call successors, (43) Word has length 232 [2022-11-22 01:50:10,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:50:10,510 INFO L225 Difference]: With dead ends: 4572 [2022-11-22 01:50:10,511 INFO L226 Difference]: Without dead ends: 3396 [2022-11-22 01:50:10,530 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-22 01:50:10,534 INFO L413 NwaCegarLoop]: 2355 mSDtfsCounter, 4281 mSDsluCounter, 2253 mSDsCounter, 0 mSdLazyCounter, 1375 mSolverCounterSat, 816 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4281 SdHoareTripleChecker+Valid, 4608 SdHoareTripleChecker+Invalid, 2192 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 816 IncrementalHoareTripleChecker+Valid, 1375 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.9s IncrementalHoareTripleChecker+Time [2022-11-22 01:50:10,535 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4281 Valid, 4608 Invalid, 2192 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [816 Valid, 1375 Invalid, 1 Unknown, 0 Unchecked, 10.9s Time] [2022-11-22 01:50:10,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3396 states. [2022-11-22 01:50:11,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3396 to 3384. [2022-11-22 01:50:11,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3384 states, 1989 states have (on average 1.3257918552036199) internal successors, (2637), 2058 states have internal predecessors, (2637), 1212 states have call successors, (1212), 183 states have call predecessors, (1212), 182 states have return successors, (1211), 1192 states have call predecessors, (1211), 1211 states have call successors, (1211) [2022-11-22 01:50:11,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3384 states to 3384 states and 5060 transitions. [2022-11-22 01:50:11,270 INFO L78 Accepts]: Start accepts. Automaton has 3384 states and 5060 transitions. Word has length 232 [2022-11-22 01:50:11,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:50:11,271 INFO L495 AbstractCegarLoop]: Abstraction has 3384 states and 5060 transitions. [2022-11-22 01:50:11,272 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (46), 2 states have call predecessors, (46), 1 states have return successors, (43), 2 states have call predecessors, (43), 2 states have call successors, (43) [2022-11-22 01:50:11,272 INFO L276 IsEmpty]: Start isEmpty. Operand 3384 states and 5060 transitions. [2022-11-22 01:50:11,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2022-11-22 01:50:11,288 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:50:11,289 INFO L195 NwaCegarLoop]: trace histogram [11, 7, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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] [2022-11-22 01:50:11,289 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-22 01:50:11,290 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:50:11,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:50:11,292 INFO L85 PathProgramCache]: Analyzing trace with hash 154477090, now seen corresponding path program 1 times [2022-11-22 01:50:11,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:50:11,292 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [259360079] [2022-11-22 01:50:11,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:50:11,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:50:11,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:50:12,497 INFO L134 CoverageAnalysis]: Checked inductivity of 289 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 289 trivial. 0 not checked. [2022-11-22 01:50:12,497 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:50:12,498 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [259360079] [2022-11-22 01:50:12,498 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [259360079] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:50:12,498 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:50:12,498 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 01:50:12,499 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2091080956] [2022-11-22 01:50:12,499 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:50:12,502 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 01:50:12,503 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:50:12,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 01:50:12,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-22 01:50:12,504 INFO L87 Difference]: Start difference. First operand 3384 states and 5060 transitions. Second operand has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (46), 2 states have call predecessors, (46), 1 states have return successors, (43), 2 states have call predecessors, (43), 2 states have call successors, (43) [2022-11-22 01:50:14,594 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:50:19,785 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:50:24,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:50:24,232 INFO L93 Difference]: Finished difference Result 13471 states and 20150 transitions. [2022-11-22 01:50:24,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 01:50:24,233 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (46), 2 states have call predecessors, (46), 1 states have return successors, (43), 2 states have call predecessors, (43), 2 states have call successors, (43) Word has length 234 [2022-11-22 01:50:24,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:50:24,319 INFO L225 Difference]: With dead ends: 13471 [2022-11-22 01:50:24,320 INFO L226 Difference]: Without dead ends: 10106 [2022-11-22 01:50:24,345 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-22 01:50:24,346 INFO L413 NwaCegarLoop]: 2335 mSDtfsCounter, 4217 mSDsluCounter, 2219 mSDsCounter, 0 mSdLazyCounter, 1362 mSolverCounterSat, 810 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4217 SdHoareTripleChecker+Valid, 4554 SdHoareTripleChecker+Invalid, 2173 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 810 IncrementalHoareTripleChecker+Valid, 1362 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.8s IncrementalHoareTripleChecker+Time [2022-11-22 01:50:24,347 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4217 Valid, 4554 Invalid, 2173 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [810 Valid, 1362 Invalid, 1 Unknown, 0 Unchecked, 10.8s Time] [2022-11-22 01:50:24,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10106 states. [2022-11-22 01:50:25,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10106 to 10094. [2022-11-22 01:50:25,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10094 states, 5943 states have (on average 1.325761399966347) internal successors, (7879), 6140 states have internal predecessors, (7879), 3608 states have call successors, (3608), 543 states have call predecessors, (3608), 542 states have return successors, (3607), 3556 states have call predecessors, (3607), 3607 states have call successors, (3607) [2022-11-22 01:50:25,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10094 states to 10094 states and 15094 transitions. [2022-11-22 01:50:25,398 INFO L78 Accepts]: Start accepts. Automaton has 10094 states and 15094 transitions. Word has length 234 [2022-11-22 01:50:25,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:50:25,400 INFO L495 AbstractCegarLoop]: Abstraction has 10094 states and 15094 transitions. [2022-11-22 01:50:25,401 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (46), 2 states have call predecessors, (46), 1 states have return successors, (43), 2 states have call predecessors, (43), 2 states have call successors, (43) [2022-11-22 01:50:25,402 INFO L276 IsEmpty]: Start isEmpty. Operand 10094 states and 15094 transitions. [2022-11-22 01:50:25,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2022-11-22 01:50:25,418 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:50:25,419 INFO L195 NwaCegarLoop]: trace histogram [11, 7, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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] [2022-11-22 01:50:25,419 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-22 01:50:25,419 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:50:25,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:50:25,431 INFO L85 PathProgramCache]: Analyzing trace with hash 1133661714, now seen corresponding path program 1 times [2022-11-22 01:50:25,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:50:25,432 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1506312955] [2022-11-22 01:50:25,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:50:25,432 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:50:25,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:50:26,856 INFO L134 CoverageAnalysis]: Checked inductivity of 289 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 289 trivial. 0 not checked. [2022-11-22 01:50:26,857 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:50:26,857 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1506312955] [2022-11-22 01:50:26,857 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1506312955] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:50:26,858 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:50:26,858 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 01:50:26,860 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1050176127] [2022-11-22 01:50:26,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:50:26,862 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 01:50:26,862 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:50:26,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 01:50:26,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-22 01:50:26,867 INFO L87 Difference]: Start difference. First operand 10094 states and 15094 transitions. Second operand has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 2 states have call successors, (46), 2 states have call predecessors, (46), 1 states have return successors, (43), 2 states have call predecessors, (43), 2 states have call successors, (43) [2022-11-22 01:50:28,965 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:50:38,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:50:38,022 INFO L93 Difference]: Finished difference Result 40299 states and 60262 transitions. [2022-11-22 01:50:38,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 01:50:38,023 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 2 states have call successors, (46), 2 states have call predecessors, (46), 1 states have return successors, (43), 2 states have call predecessors, (43), 2 states have call successors, (43) Word has length 235 [2022-11-22 01:50:38,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:50:38,229 INFO L225 Difference]: With dead ends: 40299 [2022-11-22 01:50:38,230 INFO L226 Difference]: Without dead ends: 30224 [2022-11-22 01:50:38,292 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-22 01:50:38,293 INFO L413 NwaCegarLoop]: 2335 mSDtfsCounter, 3350 mSDsluCounter, 3741 mSDsCounter, 0 mSdLazyCounter, 1549 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3350 SdHoareTripleChecker+Valid, 6076 SdHoareTripleChecker+Invalid, 1556 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 1549 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.9s IncrementalHoareTripleChecker+Time [2022-11-22 01:50:38,293 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3350 Valid, 6076 Invalid, 1556 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 1549 Invalid, 1 Unknown, 0 Unchecked, 9.9s Time] [2022-11-22 01:50:38,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30224 states. [2022-11-22 01:50:41,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30224 to 30194. [2022-11-22 01:50:41,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30194 states, 17787 states have (on average 1.3242817788272334) internal successors, (23555), 18356 states have internal predecessors, (23555), 10784 states have call successors, (10784), 1623 states have call predecessors, (10784), 1622 states have return successors, (10783), 10648 states have call predecessors, (10783), 10783 states have call successors, (10783) [2022-11-22 01:50:41,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30194 states to 30194 states and 45122 transitions. [2022-11-22 01:50:41,460 INFO L78 Accepts]: Start accepts. Automaton has 30194 states and 45122 transitions. Word has length 235 [2022-11-22 01:50:41,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:50:41,461 INFO L495 AbstractCegarLoop]: Abstraction has 30194 states and 45122 transitions. [2022-11-22 01:50:41,462 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 2 states have call successors, (46), 2 states have call predecessors, (46), 1 states have return successors, (43), 2 states have call predecessors, (43), 2 states have call successors, (43) [2022-11-22 01:50:41,462 INFO L276 IsEmpty]: Start isEmpty. Operand 30194 states and 45122 transitions. [2022-11-22 01:50:41,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2022-11-22 01:50:41,479 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:50:41,480 INFO L195 NwaCegarLoop]: trace histogram [11, 7, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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] [2022-11-22 01:50:41,480 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-22 01:50:41,480 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:50:41,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:50:41,481 INFO L85 PathProgramCache]: Analyzing trace with hash 696689114, now seen corresponding path program 1 times [2022-11-22 01:50:41,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:50:41,481 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [827275148] [2022-11-22 01:50:41,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:50:41,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:50:41,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:50:42,815 INFO L134 CoverageAnalysis]: Checked inductivity of 289 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 289 trivial. 0 not checked. [2022-11-22 01:50:42,816 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:50:42,816 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [827275148] [2022-11-22 01:50:42,816 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [827275148] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:50:42,817 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:50:42,817 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 01:50:42,817 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [690867663] [2022-11-22 01:50:42,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:50:42,818 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 01:50:42,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:50:42,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 01:50:42,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-22 01:50:42,820 INFO L87 Difference]: Start difference. First operand 30194 states and 45122 transitions. Second operand has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (46), 2 states have call predecessors, (46), 1 states have return successors, (43), 2 states have call predecessors, (43), 2 states have call successors, (43) [2022-11-22 01:50:44,909 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:50:48,901 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.79s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:50:55,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:50:55,776 INFO L93 Difference]: Finished difference Result 116855 states and 174414 transitions. [2022-11-22 01:50:55,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 01:50:55,776 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (46), 2 states have call predecessors, (46), 1 states have return successors, (43), 2 states have call predecessors, (43), 2 states have call successors, (43) Word has length 233 [2022-11-22 01:50:55,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:50:56,334 INFO L225 Difference]: With dead ends: 116855 [2022-11-22 01:50:56,334 INFO L226 Difference]: Without dead ends: 86680 [2022-11-22 01:50:56,477 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-22 01:50:56,482 INFO L413 NwaCegarLoop]: 2337 mSDtfsCounter, 3352 mSDsluCounter, 3442 mSDsCounter, 0 mSdLazyCounter, 1503 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3352 SdHoareTripleChecker+Valid, 5779 SdHoareTripleChecker+Invalid, 1510 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 1503 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.3s IncrementalHoareTripleChecker+Time [2022-11-22 01:50:56,483 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3352 Valid, 5779 Invalid, 1510 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 1503 Invalid, 1 Unknown, 0 Unchecked, 9.3s Time] [2022-11-22 01:50:56,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86680 states. [2022-11-22 01:51:03,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86680 to 86668. [2022-11-22 01:51:03,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86668 states, 51305 states have (on average 1.3264009355813273) internal successors, (68051), 52810 states have internal predecessors, (68051), 30596 states have call successors, (30596), 4767 states have call predecessors, (30596), 4766 states have return successors, (30595), 30276 states have call predecessors, (30595), 30595 states have call successors, (30595) [2022-11-22 01:51:04,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86668 states to 86668 states and 129242 transitions. [2022-11-22 01:51:04,283 INFO L78 Accepts]: Start accepts. Automaton has 86668 states and 129242 transitions. Word has length 233 [2022-11-22 01:51:04,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:51:04,283 INFO L495 AbstractCegarLoop]: Abstraction has 86668 states and 129242 transitions. [2022-11-22 01:51:04,284 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (46), 2 states have call predecessors, (46), 1 states have return successors, (43), 2 states have call predecessors, (43), 2 states have call successors, (43) [2022-11-22 01:51:04,284 INFO L276 IsEmpty]: Start isEmpty. Operand 86668 states and 129242 transitions. [2022-11-22 01:51:04,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 433 [2022-11-22 01:51:04,502 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:51:04,502 INFO L195 NwaCegarLoop]: trace histogram [28, 15, 7, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:51:04,503 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-22 01:51:04,503 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:51:04,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:51:04,504 INFO L85 PathProgramCache]: Analyzing trace with hash -1878327736, now seen corresponding path program 1 times [2022-11-22 01:51:04,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:51:04,504 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2062232846] [2022-11-22 01:51:04,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:51:04,505 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:51:05,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:51:05,815 INFO L134 CoverageAnalysis]: Checked inductivity of 1171 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1169 trivial. 0 not checked. [2022-11-22 01:51:05,815 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:51:05,815 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2062232846] [2022-11-22 01:51:05,815 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2062232846] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:51:05,816 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:51:05,816 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:51:05,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1107582929] [2022-11-22 01:51:05,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:51:05,819 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:51:05,819 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:51:05,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:51:05,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:51:05,820 INFO L87 Difference]: Start difference. First operand 86668 states and 129242 transitions. Second operand has 3 states, 3 states have (on average 49.0) internal successors, (147), 3 states have internal predecessors, (147), 2 states have call successors, (90), 2 states have call predecessors, (90), 1 states have return successors, (87), 2 states have call predecessors, (87), 2 states have call successors, (87) [2022-11-22 01:51:07,908 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:51:18,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:51:18,086 INFO L93 Difference]: Finished difference Result 241184 states and 358596 transitions. [2022-11-22 01:51:18,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:51:18,087 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 49.0) internal successors, (147), 3 states have internal predecessors, (147), 2 states have call successors, (90), 2 states have call predecessors, (90), 1 states have return successors, (87), 2 states have call predecessors, (87), 2 states have call successors, (87) Word has length 432 [2022-11-22 01:51:18,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:51:19,237 INFO L225 Difference]: With dead ends: 241184 [2022-11-22 01:51:19,237 INFO L226 Difference]: Without dead ends: 154535 [2022-11-22 01:51:19,557 INFO L412 NwaCegarLoop]: 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 [2022-11-22 01:51:19,557 INFO L413 NwaCegarLoop]: 2156 mSDtfsCounter, 1334 mSDsluCounter, 1448 mSDsCounter, 0 mSdLazyCounter, 484 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1334 SdHoareTripleChecker+Valid, 3604 SdHoareTripleChecker+Invalid, 492 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 484 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-11-22 01:51:19,558 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1334 Valid, 3604 Invalid, 492 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 484 Invalid, 1 Unknown, 0 Unchecked, 5.3s Time] [2022-11-22 01:51:19,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154535 states. [2022-11-22 01:51:29,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154535 to 154289. [2022-11-22 01:51:29,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154289 states, 90733 states have (on average 1.3175911741042399) internal successors, (119549), 93903 states have internal predecessors, (119549), 54753 states have call successors, (54753), 8884 states have call predecessors, (54753), 8802 states have return successors, (54752), 53709 states have call predecessors, (54752), 54752 states have call successors, (54752)