./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 5e519f3a 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_62e0a255-8941-439a-86f1-1cd9ad6c05db/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e0a255-8941-439a-86f1-1cd9ad6c05db/bin/utaipan-7li7fVZpFI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e0a255-8941-439a-86f1-1cd9ad6c05db/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e0a255-8941-439a-86f1-1cd9ad6c05db/bin/utaipan-7li7fVZpFI/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_62e0a255-8941-439a-86f1-1cd9ad6c05db/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e0a255-8941-439a-86f1-1cd9ad6c05db/bin/utaipan-7li7fVZpFI --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-5e519f3 [2022-11-03 02:30:40,892 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 02:30:40,895 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 02:30:40,943 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 02:30:40,943 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 02:30:40,948 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 02:30:40,950 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 02:30:40,953 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 02:30:40,955 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 02:30:40,960 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 02:30:40,961 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 02:30:40,962 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 02:30:40,963 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 02:30:40,968 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 02:30:40,969 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 02:30:40,970 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 02:30:40,971 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 02:30:40,972 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 02:30:40,973 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 02:30:40,975 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 02:30:40,976 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 02:30:40,979 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 02:30:40,983 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 02:30:40,984 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 02:30:40,998 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 02:30:40,999 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 02:30:40,999 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 02:30:41,001 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 02:30:41,001 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 02:30:41,002 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 02:30:41,003 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 02:30:41,004 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 02:30:41,006 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 02:30:41,007 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 02:30:41,009 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 02:30:41,009 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 02:30:41,010 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 02:30:41,010 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 02:30:41,010 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 02:30:41,011 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 02:30:41,012 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 02:30:41,013 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e0a255-8941-439a-86f1-1cd9ad6c05db/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-03 02:30:41,063 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 02:30:41,064 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 02:30:41,064 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 02:30:41,065 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 02:30:41,066 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 02:30:41,066 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 02:30:41,066 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 02:30:41,066 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 02:30:41,066 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 02:30:41,067 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-03 02:30:41,067 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 02:30:41,068 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 02:30:41,068 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-03 02:30:41,068 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-03 02:30:41,068 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 02:30:41,069 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-03 02:30:41,069 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-03 02:30:41,069 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-03 02:30:41,070 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 02:30:41,070 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-03 02:30:41,070 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 02:30:41,070 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 02:30:41,072 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 02:30:41,072 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 02:30:41,072 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 02:30:41,072 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 02:30:41,073 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 02:30:41,073 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 02:30:41,073 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 02:30:41,073 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 02:30:41,073 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 02:30:41,074 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-03 02:30:41,074 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 02:30:41,074 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 02:30:41,074 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-03 02:30:41,075 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-03 02:30:41,075 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 02:30:41,075 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 02:30:41,075 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_62e0a255-8941-439a-86f1-1cd9ad6c05db/bin/utaipan-7li7fVZpFI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e0a255-8941-439a-86f1-1cd9ad6c05db/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3ecfb8b0fcef33da98f558e52c103bea043ca8b7f1be39029ddcf57b060bd03a [2022-11-03 02:30:41,459 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 02:30:41,505 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 02:30:41,509 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 02:30:41,510 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 02:30:41,511 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 02:30:41,512 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e0a255-8941-439a-86f1-1cd9ad6c05db/bin/utaipan-7li7fVZpFI/../../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 [2022-11-03 02:30:41,592 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e0a255-8941-439a-86f1-1cd9ad6c05db/bin/utaipan-7li7fVZpFI/data/fa37e0ff3/6f23a0b98b9342a2bbb20815a13c4ba4/FLAG25a2772aa [2022-11-03 02:30:42,719 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 02:30:42,720 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e0a255-8941-439a-86f1-1cd9ad6c05db/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 [2022-11-03 02:30:42,792 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e0a255-8941-439a-86f1-1cd9ad6c05db/bin/utaipan-7li7fVZpFI/data/fa37e0ff3/6f23a0b98b9342a2bbb20815a13c4ba4/FLAG25a2772aa [2022-11-03 02:30:43,034 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e0a255-8941-439a-86f1-1cd9ad6c05db/bin/utaipan-7li7fVZpFI/data/fa37e0ff3/6f23a0b98b9342a2bbb20815a13c4ba4 [2022-11-03 02:30:43,038 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 02:30:43,040 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 02:30:43,045 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 02:30:43,046 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 02:30:43,049 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 02:30:43,051 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:30:43" (1/1) ... [2022-11-03 02:30:43,052 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3928181d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:30:43, skipping insertion in model container [2022-11-03 02:30:43,052 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:30:43" (1/1) ... [2022-11-03 02:30:43,060 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 02:30:43,212 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 02:30:45,488 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_62e0a255-8941-439a-86f1-1cd9ad6c05db/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] [2022-11-03 02:30:45,594 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 02:30:45,671 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 02:30:46,134 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_62e0a255-8941-439a-86f1-1cd9ad6c05db/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] [2022-11-03 02:30:46,146 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 02:30:46,367 INFO L208 MainTranslator]: Completed translation [2022-11-03 02:30:46,367 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:30:46 WrapperNode [2022-11-03 02:30:46,368 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 02:30:46,369 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 02:30:46,369 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 02:30:46,370 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 02:30:46,378 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:30:46" (1/1) ... [2022-11-03 02:30:46,495 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:30:46" (1/1) ... [2022-11-03 02:30:46,798 INFO L138 Inliner]: procedures = 235, calls = 2206, calls flagged for inlining = 117, calls inlined = 113, statements flattened = 5018 [2022-11-03 02:30:46,799 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 02:30:46,800 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 02:30:46,800 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 02:30:46,801 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 02:30:46,811 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:30:46" (1/1) ... [2022-11-03 02:30:46,811 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:30:46" (1/1) ... [2022-11-03 02:30:46,838 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:30:46" (1/1) ... [2022-11-03 02:30:46,839 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:30:46" (1/1) ... [2022-11-03 02:30:46,983 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:30:46" (1/1) ... [2022-11-03 02:30:47,020 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:30:46" (1/1) ... [2022-11-03 02:30:47,046 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:30:46" (1/1) ... [2022-11-03 02:30:47,070 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:30:46" (1/1) ... [2022-11-03 02:30:47,101 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 02:30:47,102 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 02:30:47,103 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 02:30:47,103 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 02:30:47,104 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:30:46" (1/1) ... [2022-11-03 02:30:47,111 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 02:30:47,122 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e0a255-8941-439a-86f1-1cd9ad6c05db/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:30:47,143 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e0a255-8941-439a-86f1-1cd9ad6c05db/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 02:30:47,178 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e0a255-8941-439a-86f1-1cd9ad6c05db/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 02:30:47,206 INFO L130 BoogieDeclarations]: Found specification of procedure smc_ioctl [2022-11-03 02:30:47,206 INFO L138 BoogieDeclarations]: Found implementation of procedure smc_ioctl [2022-11-03 02:30:47,206 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_write [2022-11-03 02:30:47,206 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_write [2022-11-03 02:30:47,206 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-03 02:30:47,207 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-03 02:30:47,207 INFO L130 BoogieDeclarations]: Found specification of procedure smc_hardware_send_packet [2022-11-03 02:30:47,207 INFO L138 BoogieDeclarations]: Found implementation of procedure smc_hardware_send_packet [2022-11-03 02:30:47,207 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-03 02:30:47,207 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-03 02:30:47,207 INFO L130 BoogieDeclarations]: Found specification of procedure smc91c92_detach [2022-11-03 02:30:47,207 INFO L138 BoogieDeclarations]: Found implementation of procedure smc91c92_detach [2022-11-03 02:30:47,207 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_present [2022-11-03 02:30:47,208 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_present [2022-11-03 02:30:47,208 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-11-03 02:30:47,208 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-11-03 02:30:47,208 INFO L130 BoogieDeclarations]: Found specification of procedure mhz_3288_power [2022-11-03 02:30:47,209 INFO L138 BoogieDeclarations]: Found implementation of procedure mhz_3288_power [2022-11-03 02:30:47,209 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2022-11-03 02:30:47,209 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2022-11-03 02:30:47,209 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-03 02:30:47,209 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-03 02:30:47,209 INFO L130 BoogieDeclarations]: Found specification of procedure pcmcia_request_io [2022-11-03 02:30:47,209 INFO L138 BoogieDeclarations]: Found implementation of procedure pcmcia_request_io [2022-11-03 02:30:47,210 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_restore [2022-11-03 02:30:47,210 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_restore [2022-11-03 02:30:47,210 INFO L130 BoogieDeclarations]: Found specification of procedure osi_load_firmware [2022-11-03 02:30:47,210 INFO L138 BoogieDeclarations]: Found implementation of procedure osi_load_firmware [2022-11-03 02:30:47,210 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-03 02:30:47,210 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-03 02:30:47,211 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-03 02:30:47,211 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-03 02:30:47,211 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-03 02:30:47,211 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-03 02:30:47,211 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-11-03 02:30:47,212 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-11-03 02:30:47,212 INFO L130 BoogieDeclarations]: Found specification of procedure smc_set_xcvr [2022-11-03 02:30:47,212 INFO L138 BoogieDeclarations]: Found implementation of procedure smc_set_xcvr [2022-11-03 02:30:47,212 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_1 [2022-11-03 02:30:47,212 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_1 [2022-11-03 02:30:47,213 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2022-11-03 02:30:47,213 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2022-11-03 02:30:47,213 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-03 02:30:47,213 INFO L130 BoogieDeclarations]: Found specification of procedure trace_hardirqs_off [2022-11-03 02:30:47,213 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_hardirqs_off [2022-11-03 02:30:47,213 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-11-03 02:30:47,214 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-11-03 02:30:47,214 INFO L130 BoogieDeclarations]: Found specification of procedure eth_mac_addr [2022-11-03 02:30:47,215 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_mac_addr [2022-11-03 02:30:47,216 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-03 02:30:47,216 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2022-11-03 02:30:47,216 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2022-11-03 02:30:47,216 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-11-03 02:30:47,216 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-11-03 02:30:47,217 INFO L130 BoogieDeclarations]: Found specification of procedure mot_config [2022-11-03 02:30:47,217 INFO L138 BoogieDeclarations]: Found implementation of procedure mot_config [2022-11-03 02:30:47,217 INFO L130 BoogieDeclarations]: Found specification of procedure smc91c92_resume [2022-11-03 02:30:47,217 INFO L138 BoogieDeclarations]: Found implementation of procedure smc91c92_resume [2022-11-03 02:30:47,218 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-11-03 02:30:47,218 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-11-03 02:30:47,218 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2022-11-03 02:30:47,219 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2022-11-03 02:30:47,219 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-03 02:30:47,219 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-03 02:30:47,219 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-03 02:30:47,219 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-03 02:30:47,219 INFO L130 BoogieDeclarations]: Found specification of procedure smc91c92_suspend [2022-11-03 02:30:47,219 INFO L138 BoogieDeclarations]: Found implementation of procedure smc91c92_suspend [2022-11-03 02:30:47,220 INFO L130 BoogieDeclarations]: Found specification of procedure check_sig [2022-11-03 02:30:47,220 INFO L138 BoogieDeclarations]: Found implementation of procedure check_sig [2022-11-03 02:30:47,220 INFO L130 BoogieDeclarations]: Found specification of procedure outw [2022-11-03 02:30:47,221 INFO L138 BoogieDeclarations]: Found implementation of procedure outw [2022-11-03 02:30:47,221 INFO L130 BoogieDeclarations]: Found specification of procedure eth_change_mtu [2022-11-03 02:30:47,221 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_change_mtu [2022-11-03 02:30:47,221 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-11-03 02:30:47,221 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-11-03 02:30:47,222 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2022-11-03 02:30:47,222 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2022-11-03 02:30:47,222 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-03 02:30:47,222 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-03 02:30:47,222 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_irq [2022-11-03 02:30:47,223 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_irq [2022-11-03 02:30:47,223 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_sync [2022-11-03 02:30:47,223 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_sync [2022-11-03 02:30:47,224 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-03 02:30:47,224 INFO L130 BoogieDeclarations]: Found specification of procedure set_rx_mode [2022-11-03 02:30:47,224 INFO L138 BoogieDeclarations]: Found implementation of procedure set_rx_mode [2022-11-03 02:30:47,224 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-11-03 02:30:47,225 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-11-03 02:30:47,225 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-11-03 02:30:47,225 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-11-03 02:30:47,226 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-11-03 02:30:47,227 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-11-03 02:30:47,227 INFO L130 BoogieDeclarations]: Found specification of procedure activate_suitable_timer_1 [2022-11-03 02:30:47,227 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_suitable_timer_1 [2022-11-03 02:30:47,227 INFO L130 BoogieDeclarations]: Found specification of procedure cvt_ascii_address [2022-11-03 02:30:47,227 INFO L138 BoogieDeclarations]: Found implementation of procedure cvt_ascii_address [2022-11-03 02:30:47,227 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-03 02:30:47,227 INFO L130 BoogieDeclarations]: Found specification of procedure __bitrev16 [2022-11-03 02:30:47,228 INFO L138 BoogieDeclarations]: Found implementation of procedure __bitrev16 [2022-11-03 02:30:47,228 INFO L130 BoogieDeclarations]: Found specification of procedure pcmcia_loop_tuple [2022-11-03 02:30:47,228 INFO L138 BoogieDeclarations]: Found implementation of procedure pcmcia_loop_tuple [2022-11-03 02:30:47,228 INFO L130 BoogieDeclarations]: Found specification of procedure smc91c92_release [2022-11-03 02:30:47,228 INFO L138 BoogieDeclarations]: Found implementation of procedure smc91c92_release [2022-11-03 02:30:47,229 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-03 02:30:47,229 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-03 02:30:47,229 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-11-03 02:30:47,229 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-11-03 02:30:47,229 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-03 02:30:47,230 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2022-11-03 02:30:47,231 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2022-11-03 02:30:47,234 INFO L130 BoogieDeclarations]: Found specification of procedure __bitrev8 [2022-11-03 02:30:47,234 INFO L138 BoogieDeclarations]: Found implementation of procedure __bitrev8 [2022-11-03 02:30:47,234 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-03 02:30:47,234 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-03 02:30:47,236 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-03 02:30:47,236 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-03 02:30:47,238 INFO L130 BoogieDeclarations]: Found specification of procedure pcmcia_loop_config [2022-11-03 02:30:47,238 INFO L138 BoogieDeclarations]: Found implementation of procedure pcmcia_loop_config [2022-11-03 02:30:47,238 INFO L130 BoogieDeclarations]: Found specification of procedure s9k_config [2022-11-03 02:30:47,243 INFO L138 BoogieDeclarations]: Found implementation of procedure s9k_config [2022-11-03 02:30:47,243 INFO L130 BoogieDeclarations]: Found specification of procedure smc_tx_timeout [2022-11-03 02:30:47,244 INFO L138 BoogieDeclarations]: Found implementation of procedure smc_tx_timeout [2022-11-03 02:30:47,244 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2022-11-03 02:30:47,244 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2022-11-03 02:30:47,244 INFO L130 BoogieDeclarations]: Found specification of procedure smc_reset [2022-11-03 02:30:47,244 INFO L138 BoogieDeclarations]: Found implementation of procedure smc_reset [2022-11-03 02:30:47,244 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-03 02:30:47,244 INFO L130 BoogieDeclarations]: Found specification of procedure writeb [2022-11-03 02:30:47,245 INFO L138 BoogieDeclarations]: Found implementation of procedure writeb [2022-11-03 02:30:47,245 INFO L130 BoogieDeclarations]: Found specification of procedure inw [2022-11-03 02:30:47,245 INFO L138 BoogieDeclarations]: Found implementation of procedure inw [2022-11-03 02:30:47,245 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2022-11-03 02:30:47,245 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2022-11-03 02:30:47,245 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_read [2022-11-03 02:30:47,245 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_read [2022-11-03 02:30:47,245 INFO L130 BoogieDeclarations]: Found specification of procedure readb [2022-11-03 02:30:47,246 INFO L138 BoogieDeclarations]: Found implementation of procedure readb [2022-11-03 02:30:47,246 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 02:30:47,246 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 02:30:48,092 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 02:30:48,095 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 02:30:49,340 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-03 02:30:56,538 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 02:30:57,801 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 02:30:57,801 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-03 02:30:57,807 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:30:57 BoogieIcfgContainer [2022-11-03 02:30:57,808 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 02:30:57,811 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 02:30:57,812 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 02:30:57,815 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 02:30:57,816 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 02:30:43" (1/3) ... [2022-11-03 02:30:57,816 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67bcf672 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:30:57, skipping insertion in model container [2022-11-03 02:30:57,817 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:30:46" (2/3) ... [2022-11-03 02:30:57,817 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67bcf672 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:30:57, skipping insertion in model container [2022-11-03 02:30:57,817 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:30:57" (3/3) ... [2022-11-03 02:30:57,822 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 [2022-11-03 02:30:57,843 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 02:30:57,844 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-03 02:30:57,939 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 02:30:57,946 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;@5b1acb2f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 02:30:57,946 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-03 02:30:57,955 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) [2022-11-03 02:30:58,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2022-11-03 02:30:58,008 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:30:58,022 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] [2022-11-03 02:30:58,023 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:30:58,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:30:58,028 INFO L85 PathProgramCache]: Analyzing trace with hash 986911127, now seen corresponding path program 1 times [2022-11-03 02:30:58,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:30:58,038 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [511055555] [2022-11-03 02:30:58,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:30:58,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:30:58,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:31:00,062 INFO L134 CoverageAnalysis]: Checked inductivity of 289 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 289 trivial. 0 not checked. [2022-11-03 02:31:00,063 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:31:00,063 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [511055555] [2022-11-03 02:31:00,064 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [511055555] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:31:00,064 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:31:00,064 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 02:31:00,066 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [94694429] [2022-11-03 02:31:00,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:31:00,072 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 02:31:00,073 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:31:00,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 02:31:00,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-03 02:31:00,117 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 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) [2022-11-03 02:31:02,233 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 [] [2022-11-03 02:31:10,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:31:10,978 INFO L93 Difference]: Finished difference Result 4572 states and 6871 transitions. [2022-11-03 02:31:10,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 02:31:10,981 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 [2022-11-03 02:31:10,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:31:11,028 INFO L225 Difference]: With dead ends: 4572 [2022-11-03 02:31:11,029 INFO L226 Difference]: Without dead ends: 3396 [2022-11-03 02:31:11,041 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 [2022-11-03 02:31:11,045 INFO L413 NwaCegarLoop]: 2354 mSDtfsCounter, 4275 mSDsluCounter, 2615 mSDsCounter, 0 mSdLazyCounter, 1377 mSolverCounterSat, 816 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4275 SdHoareTripleChecker+Valid, 4605 SdHoareTripleChecker+Invalid, 2194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 816 IncrementalHoareTripleChecker+Valid, 1377 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.2s IncrementalHoareTripleChecker+Time [2022-11-03 02:31:11,046 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4275 Valid, 4605 Invalid, 2194 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [816 Valid, 1377 Invalid, 1 Unknown, 0 Unchecked, 10.2s Time] [2022-11-03 02:31:11,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3396 states. [2022-11-03 02:31:11,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3396 to 3382. [2022-11-03 02:31:11,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3382 states, 1987 states have (on average 1.3251132360342224) internal successors, (2633), 2056 states have internal predecessors, (2633), 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) [2022-11-03 02:31:11,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3382 states to 3382 states and 5056 transitions. [2022-11-03 02:31:11,501 INFO L78 Accepts]: Start accepts. Automaton has 3382 states and 5056 transitions. Word has length 235 [2022-11-03 02:31:11,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:31:11,502 INFO L495 AbstractCegarLoop]: Abstraction has 3382 states and 5056 transitions. [2022-11-03 02:31:11,502 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) [2022-11-03 02:31:11,503 INFO L276 IsEmpty]: Start isEmpty. Operand 3382 states and 5056 transitions. [2022-11-03 02:31:11,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2022-11-03 02:31:11,518 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:31:11,518 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] [2022-11-03 02:31:11,518 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-03 02:31:11,519 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:31:11,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:31:11,520 INFO L85 PathProgramCache]: Analyzing trace with hash -359342145, now seen corresponding path program 1 times [2022-11-03 02:31:11,520 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:31:11,520 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [611229536] [2022-11-03 02:31:11,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:31:11,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:31:11,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:31:12,685 INFO L134 CoverageAnalysis]: Checked inductivity of 289 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 289 trivial. 0 not checked. [2022-11-03 02:31:12,686 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:31:12,686 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [611229536] [2022-11-03 02:31:12,686 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [611229536] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:31:12,686 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:31:12,687 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 02:31:12,687 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [526150989] [2022-11-03 02:31:12,687 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:31:12,690 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 02:31:12,690 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:31:12,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 02:31:12,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-03 02:31:12,691 INFO L87 Difference]: Start difference. First operand 3382 states and 5056 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) [2022-11-03 02:31:14,769 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:31:19,863 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:31:24,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:31:24,218 INFO L93 Difference]: Finished difference Result 13463 states and 20134 transitions. [2022-11-03 02:31:24,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 02:31:24,219 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 [2022-11-03 02:31:24,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:31:24,305 INFO L225 Difference]: With dead ends: 13463 [2022-11-03 02:31:24,305 INFO L226 Difference]: Without dead ends: 10100 [2022-11-03 02:31:24,329 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 [2022-11-03 02:31:24,331 INFO L413 NwaCegarLoop]: 2334 mSDtfsCounter, 4217 mSDsluCounter, 2577 mSDsCounter, 0 mSdLazyCounter, 1365 mSolverCounterSat, 810 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4217 SdHoareTripleChecker+Valid, 4551 SdHoareTripleChecker+Invalid, 2176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 810 IncrementalHoareTripleChecker+Valid, 1365 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.7s IncrementalHoareTripleChecker+Time [2022-11-03 02:31:24,331 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4217 Valid, 4551 Invalid, 2176 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [810 Valid, 1365 Invalid, 1 Unknown, 0 Unchecked, 10.7s Time] [2022-11-03 02:31:24,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10100 states. [2022-11-03 02:31:25,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10100 to 10088. [2022-11-03 02:31:25,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10088 states, 5937 states have (on average 1.3250800067374096) internal successors, (7867), 6134 states have internal predecessors, (7867), 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) [2022-11-03 02:31:25,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10088 states to 10088 states and 15082 transitions. [2022-11-03 02:31:25,391 INFO L78 Accepts]: Start accepts. Automaton has 10088 states and 15082 transitions. Word has length 234 [2022-11-03 02:31:25,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:31:25,393 INFO L495 AbstractCegarLoop]: Abstraction has 10088 states and 15082 transitions. [2022-11-03 02:31:25,394 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) [2022-11-03 02:31:25,394 INFO L276 IsEmpty]: Start isEmpty. Operand 10088 states and 15082 transitions. [2022-11-03 02:31:25,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2022-11-03 02:31:25,411 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:31:25,411 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] [2022-11-03 02:31:25,412 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-03 02:31:25,412 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:31:25,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:31:25,414 INFO L85 PathProgramCache]: Analyzing trace with hash -2004541049, now seen corresponding path program 1 times [2022-11-03 02:31:25,414 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:31:25,414 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1442612638] [2022-11-03 02:31:25,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:31:25,415 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:31:25,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:31:26,406 INFO L134 CoverageAnalysis]: Checked inductivity of 289 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 289 trivial. 0 not checked. [2022-11-03 02:31:26,406 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:31:26,407 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1442612638] [2022-11-03 02:31:26,407 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1442612638] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:31:26,407 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:31:26,407 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 02:31:26,408 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1461814411] [2022-11-03 02:31:26,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:31:26,413 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 02:31:26,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:31:26,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 02:31:26,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-03 02:31:26,414 INFO L87 Difference]: Start difference. First operand 10088 states and 15082 transitions. 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) [2022-11-03 02:31:28,497 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:31:36,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:31:36,454 INFO L93 Difference]: Finished difference Result 40275 states and 60214 transitions. [2022-11-03 02:31:36,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 02:31:36,455 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 [2022-11-03 02:31:36,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:31:36,646 INFO L225 Difference]: With dead ends: 40275 [2022-11-03 02:31:36,647 INFO L226 Difference]: Without dead ends: 30206 [2022-11-03 02:31:36,697 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 [2022-11-03 02:31:36,703 INFO L413 NwaCegarLoop]: 2334 mSDtfsCounter, 3353 mSDsluCounter, 4211 mSDsCounter, 0 mSdLazyCounter, 1544 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3353 SdHoareTripleChecker+Valid, 6014 SdHoareTripleChecker+Invalid, 1551 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 1544 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.0s IncrementalHoareTripleChecker+Time [2022-11-03 02:31:36,704 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3353 Valid, 6014 Invalid, 1551 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 1544 Invalid, 1 Unknown, 0 Unchecked, 9.0s Time] [2022-11-03 02:31:36,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30206 states. [2022-11-03 02:31:39,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30206 to 30194. [2022-11-03 02:31:39,228 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) [2022-11-03 02:31:39,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30194 states to 30194 states and 45122 transitions. [2022-11-03 02:31:39,377 INFO L78 Accepts]: Start accepts. Automaton has 30194 states and 45122 transitions. Word has length 232 [2022-11-03 02:31:39,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:31:39,378 INFO L495 AbstractCegarLoop]: Abstraction has 30194 states and 45122 transitions. [2022-11-03 02:31:39,378 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) [2022-11-03 02:31:39,379 INFO L276 IsEmpty]: Start isEmpty. Operand 30194 states and 45122 transitions. [2022-11-03 02:31:39,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2022-11-03 02:31:39,395 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:31:39,395 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] [2022-11-03 02:31:39,395 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-03 02:31:39,396 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:31:39,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:31:39,397 INFO L85 PathProgramCache]: Analyzing trace with hash 309576287, now seen corresponding path program 1 times [2022-11-03 02:31:39,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:31:39,398 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [135608090] [2022-11-03 02:31:39,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:31:39,398 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:31:39,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:31:40,688 INFO L134 CoverageAnalysis]: Checked inductivity of 289 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 289 trivial. 0 not checked. [2022-11-03 02:31:40,688 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:31:40,688 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [135608090] [2022-11-03 02:31:40,689 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [135608090] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:31:40,692 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:31:40,692 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 02:31:40,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [773359733] [2022-11-03 02:31:40,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:31:40,693 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 02:31:40,693 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:31:40,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 02:31:40,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-03 02:31:40,694 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) [2022-11-03 02:31:42,772 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:31:48,109 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:31:54,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:31:54,483 INFO L93 Difference]: Finished difference Result 116855 states and 174414 transitions. [2022-11-03 02:31:54,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 02:31:54,483 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 [2022-11-03 02:31:54,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:31:55,065 INFO L225 Difference]: With dead ends: 116855 [2022-11-03 02:31:55,066 INFO L226 Difference]: Without dead ends: 86680 [2022-11-03 02:31:55,235 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 [2022-11-03 02:31:55,240 INFO L413 NwaCegarLoop]: 2334 mSDtfsCounter, 3352 mSDsluCounter, 3966 mSDsCounter, 0 mSdLazyCounter, 1511 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3352 SdHoareTripleChecker+Valid, 5801 SdHoareTripleChecker+Invalid, 1518 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 1511 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.5s IncrementalHoareTripleChecker+Time [2022-11-03 02:31:55,241 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3352 Valid, 5801 Invalid, 1518 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 1511 Invalid, 1 Unknown, 0 Unchecked, 10.5s Time] [2022-11-03 02:31:55,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86680 states. [2022-11-03 02:32:00,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86680 to 86668. [2022-11-03 02:32:00,954 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) [2022-11-03 02:32:01,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86668 states to 86668 states and 129242 transitions. [2022-11-03 02:32:01,947 INFO L78 Accepts]: Start accepts. Automaton has 86668 states and 129242 transitions. Word has length 233 [2022-11-03 02:32:01,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:32:01,948 INFO L495 AbstractCegarLoop]: Abstraction has 86668 states and 129242 transitions. [2022-11-03 02:32:01,948 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) [2022-11-03 02:32:01,948 INFO L276 IsEmpty]: Start isEmpty. Operand 86668 states and 129242 transitions. [2022-11-03 02:32:02,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 433 [2022-11-03 02:32:02,191 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:32:02,192 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] [2022-11-03 02:32:02,192 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-03 02:32:02,193 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:32:02,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:32:02,193 INFO L85 PathProgramCache]: Analyzing trace with hash -1241345685, now seen corresponding path program 1 times [2022-11-03 02:32:02,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:32:02,194 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1605747262] [2022-11-03 02:32:02,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:32:02,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:32:02,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:32:03,403 INFO L134 CoverageAnalysis]: Checked inductivity of 1171 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1169 trivial. 0 not checked. [2022-11-03 02:32:03,403 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:32:03,403 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1605747262] [2022-11-03 02:32:03,404 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1605747262] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:32:03,404 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:32:03,404 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:32:03,404 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [702159548] [2022-11-03 02:32:03,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:32:03,407 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:32:03,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:32:03,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:32:03,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:32:03,408 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) [2022-11-03 02:32:05,493 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:32:07,900 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:32:15,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:32:15,715 INFO L93 Difference]: Finished difference Result 241184 states and 358596 transitions. [2022-11-03 02:32:15,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:32:15,716 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 [2022-11-03 02:32:15,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:32:16,873 INFO L225 Difference]: With dead ends: 241184 [2022-11-03 02:32:16,873 INFO L226 Difference]: Without dead ends: 154535 [2022-11-03 02:32:17,135 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 [2022-11-03 02:32:17,136 INFO L413 NwaCegarLoop]: 2157 mSDtfsCounter, 1334 mSDsluCounter, 1622 mSDsCounter, 0 mSdLazyCounter, 484 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s 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, 6.0s IncrementalHoareTripleChecker+Time [2022-11-03 02:32:17,136 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1334 Valid, 3604 Invalid, 492 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 484 Invalid, 1 Unknown, 0 Unchecked, 6.0s Time] [2022-11-03 02:32:17,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154535 states. [2022-11-03 02:32:27,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154535 to 154289. [2022-11-03 02:32:27,367 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)