./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--net--ethernet--qlogic--qlge--qlge.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-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4145a0d-f36f-4785-92a7-708e29530719/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4145a0d-f36f-4785-92a7-708e29530719/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_b4145a0d-f36f-4785-92a7-708e29530719/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4145a0d-f36f-4785-92a7-708e29530719/bin/utaipan-7li7fVZpFI/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--net--ethernet--qlogic--qlge--qlge.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4145a0d-f36f-4785-92a7-708e29530719/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_b4145a0d-f36f-4785-92a7-708e29530719/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 8e14f2a21a56a60e783d0aab2506240481fbe23123ec2497fb50b7b6292e33af --- 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 01:57:30,788 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 01:57:30,791 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 01:57:30,840 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 01:57:30,841 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 01:57:30,846 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 01:57:30,848 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 01:57:30,851 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 01:57:30,853 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 01:57:30,859 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 01:57:30,860 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 01:57:30,863 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 01:57:30,863 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 01:57:30,866 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 01:57:30,867 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 01:57:30,870 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 01:57:30,871 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 01:57:30,872 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 01:57:30,874 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 01:57:30,882 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 01:57:30,884 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 01:57:30,885 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 01:57:30,888 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 01:57:30,890 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 01:57:30,899 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 01:57:30,899 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 01:57:30,899 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 01:57:30,901 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 01:57:30,904 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 01:57:30,906 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 01:57:30,906 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 01:57:30,907 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 01:57:30,910 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 01:57:30,912 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 01:57:30,913 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 01:57:30,914 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 01:57:30,915 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 01:57:30,915 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 01:57:30,915 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 01:57:30,916 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 01:57:30,917 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 01:57:30,918 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4145a0d-f36f-4785-92a7-708e29530719/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-03 01:57:30,960 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 01:57:30,960 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 01:57:30,961 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 01:57:30,961 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 01:57:30,963 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 01:57:30,963 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 01:57:30,963 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 01:57:30,963 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 01:57:30,963 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 01:57:30,964 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-03 01:57:30,965 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 01:57:30,965 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 01:57:30,965 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-03 01:57:30,966 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-03 01:57:30,966 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 01:57:30,966 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-03 01:57:30,966 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-03 01:57:30,966 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-03 01:57:30,967 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 01:57:30,967 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-03 01:57:30,968 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 01:57:30,968 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 01:57:30,968 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 01:57:30,968 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 01:57:30,968 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 01:57:30,969 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 01:57:30,969 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 01:57:30,969 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 01:57:30,969 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 01:57:30,970 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 01:57:30,970 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 01:57:30,970 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-03 01:57:30,970 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 01:57:30,971 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 01:57:30,971 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-03 01:57:30,971 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-03 01:57:30,971 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 01:57:30,971 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 01:57:30,972 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_b4145a0d-f36f-4785-92a7-708e29530719/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4145a0d-f36f-4785-92a7-708e29530719/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8e14f2a21a56a60e783d0aab2506240481fbe23123ec2497fb50b7b6292e33af [2022-11-03 01:57:31,285 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 01:57:31,317 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 01:57:31,320 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 01:57:31,321 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 01:57:31,322 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 01:57:31,323 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4145a0d-f36f-4785-92a7-708e29530719/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--net--ethernet--qlogic--qlge--qlge.ko-entry_point.cil.out.i [2022-11-03 01:57:31,389 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4145a0d-f36f-4785-92a7-708e29530719/bin/utaipan-7li7fVZpFI/data/882e35596/f4c58affe7b24fa0a6cbc3fc656a524c/FLAGd61273d11 [2022-11-03 01:57:32,446 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 01:57:32,447 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4145a0d-f36f-4785-92a7-708e29530719/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--net--ethernet--qlogic--qlge--qlge.ko-entry_point.cil.out.i [2022-11-03 01:57:32,519 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4145a0d-f36f-4785-92a7-708e29530719/bin/utaipan-7li7fVZpFI/data/882e35596/f4c58affe7b24fa0a6cbc3fc656a524c/FLAGd61273d11 [2022-11-03 01:57:32,706 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4145a0d-f36f-4785-92a7-708e29530719/bin/utaipan-7li7fVZpFI/data/882e35596/f4c58affe7b24fa0a6cbc3fc656a524c [2022-11-03 01:57:32,708 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 01:57:32,709 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 01:57:32,711 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 01:57:32,711 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 01:57:32,715 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 01:57:32,716 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 01:57:32" (1/1) ... [2022-11-03 01:57:32,717 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@384c12bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:57:32, skipping insertion in model container [2022-11-03 01:57:32,718 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 01:57:32" (1/1) ... [2022-11-03 01:57:32,726 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 01:57:33,012 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 01:57:33,727 WARN L1244 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [6571] [2022-11-03 01:57:33,728 WARN L1244 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [6572-6573] [2022-11-03 01:57:34,600 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_b4145a0d-f36f-4785-92a7-708e29530719/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--net--ethernet--qlogic--qlge--qlge.ko-entry_point.cil.out.i[202382,202395] [2022-11-03 01:57:38,514 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 01:57:38,666 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 01:57:38,786 WARN L1244 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [6571] [2022-11-03 01:57:38,786 WARN L1244 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [6572-6573] [2022-11-03 01:57:38,800 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_b4145a0d-f36f-4785-92a7-708e29530719/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--net--ethernet--qlogic--qlge--qlge.ko-entry_point.cil.out.i[202382,202395] [2022-11-03 01:57:39,323 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 01:57:39,737 INFO L208 MainTranslator]: Completed translation [2022-11-03 01:57:39,737 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:57:39 WrapperNode [2022-11-03 01:57:39,738 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 01:57:39,739 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 01:57:39,739 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 01:57:39,739 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 01:57:39,746 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:57:39" (1/1) ... [2022-11-03 01:57:40,020 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:57:39" (1/1) ... [2022-11-03 01:57:40,524 INFO L138 Inliner]: procedures = 615, calls = 7318, calls flagged for inlining = 278, calls inlined = 266, statements flattened = 14805 [2022-11-03 01:57:40,524 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 01:57:40,525 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 01:57:40,525 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 01:57:40,525 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 01:57:40,535 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:57:39" (1/1) ... [2022-11-03 01:57:40,537 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:57:39" (1/1) ... [2022-11-03 01:57:40,662 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:57:39" (1/1) ... [2022-11-03 01:57:40,663 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:57:39" (1/1) ... [2022-11-03 01:57:41,116 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:57:39" (1/1) ... [2022-11-03 01:57:41,197 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:57:39" (1/1) ... [2022-11-03 01:57:41,336 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:57:39" (1/1) ... [2022-11-03 01:57:41,397 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:57:39" (1/1) ... [2022-11-03 01:57:41,557 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 01:57:41,558 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 01:57:41,558 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 01:57:41,559 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 01:57:41,566 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:57:39" (1/1) ... [2022-11-03 01:57:41,587 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 01:57:41,599 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4145a0d-f36f-4785-92a7-708e29530719/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 01:57:41,612 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4145a0d-f36f-4785-92a7-708e29530719/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 01:57:41,646 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4145a0d-f36f-4785-92a7-708e29530719/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 01:57:41,671 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2022-11-03 01:57:41,671 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2022-11-03 01:57:41,671 INFO L130 BoogieDeclarations]: Found specification of procedure ipv6_hdr [2022-11-03 01:57:41,671 INFO L138 BoogieDeclarations]: Found implementation of procedure ipv6_hdr [2022-11-03 01:57:41,672 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2022-11-03 01:57:41,672 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2022-11-03 01:57:41,672 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2022-11-03 01:57:41,672 INFO L130 BoogieDeclarations]: Found specification of procedure ql_free_irq [2022-11-03 01:57:41,672 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_free_irq [2022-11-03 01:57:41,673 INFO L130 BoogieDeclarations]: Found specification of procedure lowmem_page_address [2022-11-03 01:57:41,673 INFO L138 BoogieDeclarations]: Found implementation of procedure lowmem_page_address [2022-11-03 01:57:41,673 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_page [2022-11-03 01:57:41,673 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_page [2022-11-03 01:57:41,673 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2022-11-03 01:57:41,673 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2022-11-03 01:57:41,674 INFO L130 BoogieDeclarations]: Found specification of procedure ql_enable_completion_interrupt [2022-11-03 01:57:41,674 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_enable_completion_interrupt [2022-11-03 01:57:41,674 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-03 01:57:41,674 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-03 01:57:41,674 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_both_serdes [2022-11-03 01:57:41,675 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_both_serdes [2022-11-03 01:57:41,675 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read_xgmac_reg [2022-11-03 01:57:41,675 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read_xgmac_reg [2022-11-03 01:57:41,675 INFO L130 BoogieDeclarations]: Found specification of procedure ql_adapter_reset [2022-11-03 01:57:41,675 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_adapter_reset [2022-11-03 01:57:41,676 INFO L130 BoogieDeclarations]: Found specification of procedure ioremap_nocache [2022-11-03 01:57:41,676 INFO L138 BoogieDeclarations]: Found implementation of procedure ioremap_nocache [2022-11-03 01:57:41,676 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2022-11-03 01:57:41,677 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2022-11-03 01:57:41,677 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_sync_single_for_cpu [2022-11-03 01:57:41,677 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_sync_single_for_cpu [2022-11-03 01:57:41,677 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_send [2022-11-03 01:57:41,677 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_send [2022-11-03 01:57:41,678 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_page [2022-11-03 01:57:41,678 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_page [2022-11-03 01:57:41,678 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2022-11-03 01:57:41,678 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2022-11-03 01:57:41,678 INFO L130 BoogieDeclarations]: Found specification of procedure netif_napi_del [2022-11-03 01:57:41,679 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_napi_del [2022-11-03 01:57:41,679 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-11-03 01:57:41,679 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-11-03 01:57:41,679 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_on [2022-11-03 01:57:41,680 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_on [2022-11-03 01:57:41,680 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-11-03 01:57:41,681 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-11-03 01:57:41,682 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_regs_len [2022-11-03 01:57:41,682 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_regs_len [2022-11-03 01:57:41,682 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_vlan_rx_kill_vid [2022-11-03 01:57:41,682 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_vlan_rx_kill_vid [2022-11-03 01:57:41,683 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-03 01:57:41,683 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-03 01:57:41,683 INFO L130 BoogieDeclarations]: Found specification of procedure PageTail [2022-11-03 01:57:41,684 INFO L138 BoogieDeclarations]: Found implementation of procedure PageTail [2022-11-03 01:57:41,684 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_shutdown [2022-11-03 01:57:41,684 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_shutdown [2022-11-03 01:57:41,685 INFO L130 BoogieDeclarations]: Found specification of procedure ql_release_all [2022-11-03 01:57:41,685 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_release_all [2022-11-03 01:57:41,685 INFO L130 BoogieDeclarations]: Found specification of procedure ql_update_mac_hdr_len [2022-11-03 01:57:41,685 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_update_mac_hdr_len [2022-11-03 01:57:41,685 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mailbox_command [2022-11-03 01:57:41,686 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mailbox_command [2022-11-03 01:57:41,686 INFO L130 BoogieDeclarations]: Found specification of procedure skb_checksum_none_assert [2022-11-03 01:57:41,686 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_checksum_none_assert [2022-11-03 01:57:41,686 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-11-03 01:57:41,686 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-11-03 01:57:41,686 INFO L130 BoogieDeclarations]: Found specification of procedure ql_set_irq_mask [2022-11-03 01:57:41,687 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_set_irq_mask [2022-11-03 01:57:41,687 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-11-03 01:57:41,688 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-11-03 01:57:41,688 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2022-11-03 01:57:41,688 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2022-11-03 01:57:41,688 INFO L130 BoogieDeclarations]: Found specification of procedure ql_dump_risc_ram_area [2022-11-03 01:57:41,688 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_dump_risc_ram_area [2022-11-03 01:57:41,689 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-11-03 01:57:41,689 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-11-03 01:57:41,689 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_u32 [2022-11-03 01:57:41,690 INFO L130 BoogieDeclarations]: Found specification of procedure ql_write_other_func_reg [2022-11-03 01:57:41,690 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_write_other_func_reg [2022-11-03 01:57:41,691 INFO L130 BoogieDeclarations]: Found specification of procedure __qlge_vlan_rx_add_vid [2022-11-03 01:57:41,691 INFO L138 BoogieDeclarations]: Found implementation of procedure __qlge_vlan_rx_add_vid [2022-11-03 01:57:41,691 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2022-11-03 01:57:41,691 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2022-11-03 01:57:41,691 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_attach [2022-11-03 01:57:41,692 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_attach [2022-11-03 01:57:41,693 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-03 01:57:41,693 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2022-11-03 01:57:41,693 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2022-11-03 01:57:41,693 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_xgmac_regs [2022-11-03 01:57:41,694 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_xgmac_regs [2022-11-03 01:57:41,694 INFO L130 BoogieDeclarations]: Found specification of procedure ql_queue_asic_error [2022-11-03 01:57:41,694 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_queue_asic_error [2022-11-03 01:57:41,695 INFO L130 BoogieDeclarations]: Found specification of procedure ql_update_buffer_queues [2022-11-03 01:57:41,695 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_update_buffer_queues [2022-11-03 01:57:41,695 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_cam_entries [2022-11-03 01:57:41,695 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_cam_entries [2022-11-03 01:57:41,695 INFO L130 BoogieDeclarations]: Found specification of procedure ql_free_mem_resources [2022-11-03 01:57:41,695 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_free_mem_resources [2022-11-03 01:57:41,696 INFO L130 BoogieDeclarations]: Found specification of procedure ql_write_xgmac_reg [2022-11-03 01:57:41,696 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_write_xgmac_reg [2022-11-03 01:57:41,696 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_detach [2022-11-03 01:57:41,697 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_detach [2022-11-03 01:57:41,697 INFO L130 BoogieDeclarations]: Found specification of procedure ql_adapter_up [2022-11-03 01:57:41,697 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_adapter_up [2022-11-03 01:57:41,697 INFO L130 BoogieDeclarations]: Found specification of procedure ql_eeh_close [2022-11-03 01:57:41,697 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_eeh_close [2022-11-03 01:57:41,698 INFO L130 BoogieDeclarations]: Found specification of procedure netif_receive_skb [2022-11-03 01:57:41,699 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_receive_skb [2022-11-03 01:57:41,702 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-03 01:57:41,702 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-03 01:57:41,702 INFO L130 BoogieDeclarations]: Found specification of procedure ql_set_mac_addr_reg [2022-11-03 01:57:41,704 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_set_mac_addr_reg [2022-11-03 01:57:41,705 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-11-03 01:57:41,705 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-11-03 01:57:41,705 INFO L130 BoogieDeclarations]: Found specification of procedure skb_record_rx_queue [2022-11-03 01:57:41,706 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_record_rx_queue [2022-11-03 01:57:41,706 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_consistent_dma_mask [2022-11-03 01:57:41,712 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_consistent_dma_mask [2022-11-03 01:57:41,712 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-03 01:57:41,712 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read_serdes_reg [2022-11-03 01:57:41,713 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read_serdes_reg [2022-11-03 01:57:41,713 INFO L130 BoogieDeclarations]: Found specification of procedure pci_save_state [2022-11-03 01:57:41,713 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_save_state [2022-11-03 01:57:41,713 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-11-03 01:57:41,713 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-11-03 01:57:41,713 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-11-03 01:57:41,714 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-11-03 01:57:41,714 INFO L130 BoogieDeclarations]: Found specification of procedure ql_build_coredump_seg_header [2022-11-03 01:57:41,714 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_build_coredump_seg_header [2022-11-03 01:57:41,714 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_close [2022-11-03 01:57:41,714 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_close [2022-11-03 01:57:41,714 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_mb_sts [2022-11-03 01:57:41,715 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_mb_sts [2022-11-03 01:57:41,715 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-03 01:57:41,715 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_open [2022-11-03 01:57:41,715 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_open [2022-11-03 01:57:41,715 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-03 01:57:41,715 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-11-03 01:57:41,716 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-11-03 01:57:41,716 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headroom [2022-11-03 01:57:41,716 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headroom [2022-11-03 01:57:41,716 INFO L130 BoogieDeclarations]: Found specification of procedure reg_check_1 [2022-11-03 01:57:41,716 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_check_1 [2022-11-03 01:57:41,716 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-03 01:57:41,717 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-03 01:57:41,717 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_header [2022-11-03 01:57:41,717 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_header [2022-11-03 01:57:41,717 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_probe [2022-11-03 01:57:41,717 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_probe [2022-11-03 01:57:41,717 INFO L130 BoogieDeclarations]: Found specification of procedure skb_network_offset [2022-11-03 01:57:41,717 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_network_offset [2022-11-03 01:57:41,718 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-11-03 01:57:41,718 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-11-03 01:57:41,718 INFO L130 BoogieDeclarations]: Found specification of procedure ql_free_rx_buffers [2022-11-03 01:57:41,718 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_free_rx_buffers [2022-11-03 01:57:41,718 INFO L130 BoogieDeclarations]: Found specification of procedure dev_close [2022-11-03 01:57:41,719 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_close [2022-11-03 01:57:41,719 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_dma_mask [2022-11-03 01:57:41,719 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_dma_mask [2022-11-03 01:57:41,719 INFO L130 BoogieDeclarations]: Found specification of procedure ql_write32 [2022-11-03 01:57:41,719 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_write32 [2022-11-03 01:57:41,720 INFO L130 BoogieDeclarations]: Found specification of procedure __netdev_alloc_skb [2022-11-03 01:57:41,720 INFO L138 BoogieDeclarations]: Found implementation of procedure __netdev_alloc_skb [2022-11-03 01:57:41,720 INFO L130 BoogieDeclarations]: Found specification of procedure ql_cam_route_initialize [2022-11-03 01:57:41,720 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_cam_route_initialize [2022-11-03 01:57:41,720 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2022-11-03 01:57:41,721 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2022-11-03 01:57:41,721 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-11-03 01:57:41,721 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-11-03 01:57:41,721 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_u16 [2022-11-03 01:57:41,721 INFO L130 BoogieDeclarations]: Found specification of procedure ql_wait_other_func_reg_rdy [2022-11-03 01:57:41,721 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_wait_other_func_reg_rdy [2022-11-03 01:57:41,722 INFO L130 BoogieDeclarations]: Found specification of procedure ql_sem_trylock [2022-11-03 01:57:41,722 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_sem_trylock [2022-11-03 01:57:41,722 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mb_set_port_cfg [2022-11-03 01:57:41,722 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mb_set_port_cfg [2022-11-03 01:57:41,722 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-03 01:57:41,722 INFO L130 BoogieDeclarations]: Found specification of procedure ql_write_mpi_reg [2022-11-03 01:57:41,723 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_write_mpi_reg [2022-11-03 01:57:41,723 INFO L130 BoogieDeclarations]: Found specification of procedure __get_order [2022-11-03 01:57:41,723 INFO L138 BoogieDeclarations]: Found implementation of procedure __get_order [2022-11-03 01:57:41,725 INFO L130 BoogieDeclarations]: Found specification of procedure ql_sem_spinlock [2022-11-03 01:57:41,725 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_sem_spinlock [2022-11-03 01:57:41,725 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-03 01:57:41,725 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_ether_addr [2022-11-03 01:57:41,725 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_ether_addr [2022-11-03 01:57:41,726 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_get_stats [2022-11-03 01:57:41,726 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_get_stats [2022-11-03 01:57:41,726 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-03 01:57:41,726 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-03 01:57:41,726 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-03 01:57:41,726 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-03 01:57:41,727 INFO L130 BoogieDeclarations]: Found specification of procedure ql_sem_unlock [2022-11-03 01:57:41,727 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_sem_unlock [2022-11-03 01:57:41,727 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_8012_flash_params [2022-11-03 01:57:41,727 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_8012_flash_params [2022-11-03 01:57:41,727 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-11-03 01:57:41,727 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-11-03 01:57:41,728 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_io_slot_reset [2022-11-03 01:57:41,728 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_io_slot_reset [2022-11-03 01:57:41,728 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2022-11-03 01:57:41,728 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2022-11-03 01:57:41,728 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read_other_func_serdes_reg [2022-11-03 01:57:41,728 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read_other_func_serdes_reg [2022-11-03 01:57:41,728 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2022-11-03 01:57:41,729 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2022-11-03 01:57:41,729 INFO L130 BoogieDeclarations]: Found specification of procedure ql_disable_completion_interrupt [2022-11-03 01:57:41,729 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_disable_completion_interrupt [2022-11-03 01:57:41,729 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_fill_page_desc [2022-11-03 01:57:41,729 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_fill_page_desc [2022-11-03 01:57:41,729 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2022-11-03 01:57:41,730 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2022-11-03 01:57:41,730 INFO L130 BoogieDeclarations]: Found specification of procedure ql_clear_routing_entries [2022-11-03 01:57:41,730 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_clear_routing_entries [2022-11-03 01:57:41,730 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_map_page [2022-11-03 01:57:41,730 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_map_page [2022-11-03 01:57:41,730 INFO L130 BoogieDeclarations]: Found specification of procedure ql_link_off [2022-11-03 01:57:41,731 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_link_off [2022-11-03 01:57:41,731 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-03 01:57:41,731 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-03 01:57:41,731 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2022-11-03 01:57:41,731 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2022-11-03 01:57:41,731 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_size [2022-11-03 01:57:41,732 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_size [2022-11-03 01:57:41,732 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_tx_timeout [2022-11-03 01:57:41,732 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_tx_timeout [2022-11-03 01:57:41,732 INFO L130 BoogieDeclarations]: Found specification of procedure ql_8000_port_initialize [2022-11-03 01:57:41,732 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_8000_port_initialize [2022-11-03 01:57:41,732 INFO L130 BoogieDeclarations]: Found specification of procedure queue_delayed_work [2022-11-03 01:57:41,732 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_delayed_work [2022-11-03 01:57:41,733 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_mpi_regs [2022-11-03 01:57:41,733 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_mpi_regs [2022-11-03 01:57:41,733 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2022-11-03 01:57:41,733 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2022-11-03 01:57:41,734 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-11-03 01:57:41,738 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-11-03 01:57:41,738 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_set_mac_address [2022-11-03 01:57:41,738 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_set_mac_address [2022-11-03 01:57:41,739 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 01:57:41,739 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 01:57:41,739 INFO L130 BoogieDeclarations]: Found specification of procedure ql_8012_port_initialize [2022-11-03 01:57:41,739 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_8012_port_initialize [2022-11-03 01:57:41,739 INFO L130 BoogieDeclarations]: Found specification of procedure tcp_hdr [2022-11-03 01:57:41,739 INFO L138 BoogieDeclarations]: Found implementation of procedure tcp_hdr [2022-11-03 01:57:41,741 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read_flash_word [2022-11-03 01:57:41,741 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read_flash_word [2022-11-03 01:57:41,741 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_subqueue [2022-11-03 01:57:41,742 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_subqueue [2022-11-03 01:57:41,742 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2022-11-03 01:57:41,742 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2022-11-03 01:57:41,742 INFO L130 BoogieDeclarations]: Found specification of procedure ql_release_adapter_resources [2022-11-03 01:57:41,742 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_release_adapter_resources [2022-11-03 01:57:41,742 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-03 01:57:41,742 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-03 01:57:41,743 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-03 01:57:41,743 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-03 01:57:41,743 INFO L130 BoogieDeclarations]: Found specification of procedure csum_tcpudp_magic [2022-11-03 01:57:41,743 INFO L138 BoogieDeclarations]: Found implementation of procedure csum_tcpudp_magic [2022-11-03 01:57:41,743 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_delayed_work_sync [2022-11-03 01:57:41,743 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_delayed_work_sync [2022-11-03 01:57:41,744 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2022-11-03 01:57:41,744 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2022-11-03 01:57:41,744 INFO L130 BoogieDeclarations]: Found specification of procedure ql_free_rx_resources [2022-11-03 01:57:41,744 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_free_rx_resources [2022-11-03 01:57:41,744 INFO L130 BoogieDeclarations]: Found specification of procedure napi_schedule [2022-11-03 01:57:41,744 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_schedule [2022-11-03 01:57:41,745 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2022-11-03 01:57:41,745 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2022-11-03 01:57:41,745 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2022-11-03 01:57:41,745 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2022-11-03 01:57:41,745 INFO L130 BoogieDeclarations]: Found specification of procedure ql_disable_interrupts [2022-11-03 01:57:41,745 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_disable_interrupts [2022-11-03 01:57:41,745 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2022-11-03 01:57:41,746 INFO L130 BoogieDeclarations]: Found specification of procedure ql_soft_reset_mpi_risc [2022-11-03 01:57:41,746 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_soft_reset_mpi_risc [2022-11-03 01:57:41,746 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2022-11-03 01:57:41,746 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2022-11-03 01:57:41,746 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_remove [2022-11-03 01:57:41,746 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_remove [2022-11-03 01:57:41,747 INFO L130 BoogieDeclarations]: Found specification of procedure ql_write_cq_idx [2022-11-03 01:57:41,747 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_write_cq_idx [2022-11-03 01:57:41,747 INFO L130 BoogieDeclarations]: Found specification of procedure ql_link_on [2022-11-03 01:57:41,747 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_link_on [2022-11-03 01:57:41,747 INFO L130 BoogieDeclarations]: Found specification of procedure napi_gro_receive [2022-11-03 01:57:41,747 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_gro_receive [2022-11-03 01:57:41,748 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_set_multicast_list [2022-11-03 01:57:41,748 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_set_multicast_list [2022-11-03 01:57:41,748 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-11-03 01:57:41,748 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-11-03 01:57:41,748 INFO L130 BoogieDeclarations]: Found specification of procedure pskb_expand_head [2022-11-03 01:57:41,748 INFO L138 BoogieDeclarations]: Found implementation of procedure pskb_expand_head [2022-11-03 01:57:41,748 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-03 01:57:41,749 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-03 01:57:41,749 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_release_4 [2022-11-03 01:57:41,749 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_release_4 [2022-11-03 01:57:41,749 INFO L130 BoogieDeclarations]: Found specification of procedure queue_delayed_work_on [2022-11-03 01:57:41,749 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_delayed_work_on [2022-11-03 01:57:41,749 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2022-11-03 01:57:41,750 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2022-11-03 01:57:41,750 INFO L130 BoogieDeclarations]: Found specification of procedure ip_hdr [2022-11-03 01:57:41,750 INFO L138 BoogieDeclarations]: Found implementation of procedure ip_hdr [2022-11-03 01:57:41,750 INFO L130 BoogieDeclarations]: Found specification of procedure ql_tx_ring_clean [2022-11-03 01:57:41,750 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_tx_ring_clean [2022-11-03 01:57:41,750 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2022-11-03 01:57:41,751 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2022-11-03 01:57:41,751 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-03 01:57:41,751 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-03 01:57:41,751 INFO L130 BoogieDeclarations]: Found specification of procedure activate_suitable_irq_1 [2022-11-03 01:57:41,751 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_suitable_irq_1 [2022-11-03 01:57:41,751 INFO L130 BoogieDeclarations]: Found specification of procedure skb_fill_page_desc [2022-11-03 01:57:41,751 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_fill_page_desc [2022-11-03 01:57:41,752 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-03 01:57:41,752 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-03 01:57:41,752 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read_mpi_reg [2022-11-03 01:57:41,752 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read_mpi_reg [2022-11-03 01:57:41,752 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2022-11-03 01:57:41,752 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2022-11-03 01:57:41,753 INFO L130 BoogieDeclarations]: Found specification of procedure ql_clean_inbound_rx_ring [2022-11-03 01:57:41,753 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_clean_inbound_rx_ring [2022-11-03 01:57:41,753 INFO L130 BoogieDeclarations]: Found specification of procedure ql_update_cq [2022-11-03 01:57:41,753 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_update_cq [2022-11-03 01:57:41,753 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_unmap_page [2022-11-03 01:57:41,753 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_unmap_page [2022-11-03 01:57:41,754 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_subqueue [2022-11-03 01:57:41,754 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_subqueue [2022-11-03 01:57:41,754 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-11-03 01:57:41,754 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-11-03 01:57:41,754 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2022-11-03 01:57:41,754 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2022-11-03 01:57:41,754 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_set_features [2022-11-03 01:57:41,755 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_set_features [2022-11-03 01:57:41,755 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-03 01:57:41,755 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-03 01:57:41,755 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-03 01:57:41,755 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_curr_sbuf [2022-11-03 01:57:41,755 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_curr_sbuf [2022-11-03 01:57:41,755 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_master [2022-11-03 01:57:41,756 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_master [2022-11-03 01:57:41,756 INFO L130 BoogieDeclarations]: Found specification of procedure ql_realign_skb [2022-11-03 01:57:41,756 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_realign_skb [2022-11-03 01:57:41,756 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-11-03 01:57:41,756 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-11-03 01:57:41,756 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_io_error_detected [2022-11-03 01:57:41,757 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_io_error_detected [2022-11-03 01:57:41,757 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_routing_entries [2022-11-03 01:57:41,757 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_routing_entries [2022-11-03 01:57:41,757 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-03 01:57:41,757 INFO L130 BoogieDeclarations]: Found specification of procedure put_page [2022-11-03 01:57:41,757 INFO L138 BoogieDeclarations]: Found implementation of procedure put_page [2022-11-03 01:57:41,757 INFO L130 BoogieDeclarations]: Found specification of procedure ql_process_mac_split_rx_intr [2022-11-03 01:57:41,758 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_process_mac_split_rx_intr [2022-11-03 01:57:41,758 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_suspend [2022-11-03 01:57:41,758 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_suspend [2022-11-03 01:57:41,758 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2022-11-03 01:57:41,758 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2022-11-03 01:57:41,758 INFO L130 BoogieDeclarations]: Found specification of procedure __pskb_pull_tail [2022-11-03 01:57:41,758 INFO L138 BoogieDeclarations]: Found implementation of procedure __pskb_pull_tail [2022-11-03 01:57:41,759 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_wake [2022-11-03 01:57:41,759 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_wake [2022-11-03 01:57:41,759 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-03 01:57:41,759 INFO L130 BoogieDeclarations]: Found specification of procedure __vlan_hwaccel_put_tag [2022-11-03 01:57:41,759 INFO L138 BoogieDeclarations]: Found implementation of procedure __vlan_hwaccel_put_tag [2022-11-03 01:57:41,759 INFO L130 BoogieDeclarations]: Found specification of procedure ql_validate_flash [2022-11-03 01:57:41,760 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_validate_flash [2022-11-03 01:57:41,760 INFO L130 BoogieDeclarations]: Found specification of procedure dma_mapping_error [2022-11-03 01:57:41,760 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_mapping_error [2022-11-03 01:57:41,760 INFO L130 BoogieDeclarations]: Found specification of procedure ql_cancel_all_work_sync [2022-11-03 01:57:41,760 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_cancel_all_work_sync [2022-11-03 01:57:41,760 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2022-11-03 01:57:41,760 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2022-11-03 01:57:41,761 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-11-03 01:57:41,761 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-11-03 01:57:41,761 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2022-11-03 01:57:41,761 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2022-11-03 01:57:41,761 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_8000_flash_params [2022-11-03 01:57:41,761 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_8000_flash_params [2022-11-03 01:57:41,762 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-11-03 01:57:41,762 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-11-03 01:57:41,762 INFO L130 BoogieDeclarations]: Found specification of procedure ql_check_lb_frame [2022-11-03 01:57:41,762 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_check_lb_frame [2022-11-03 01:57:41,762 INFO L130 BoogieDeclarations]: Found specification of procedure pci_restore_state [2022-11-03 01:57:41,762 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_restore_state [2022-11-03 01:57:41,762 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc_array [2022-11-03 01:57:41,763 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc_array [2022-11-03 01:57:41,763 INFO L130 BoogieDeclarations]: Found specification of procedure ql_categorize_rx_err [2022-11-03 01:57:41,763 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_categorize_rx_err [2022-11-03 01:57:41,763 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2022-11-03 01:57:41,763 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2022-11-03 01:57:41,763 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-11-03 01:57:41,764 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-11-03 01:57:41,764 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2022-11-03 01:57:41,764 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2022-11-03 01:57:41,764 INFO L130 BoogieDeclarations]: Found specification of procedure ql_adapter_initialize [2022-11-03 01:57:41,764 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_adapter_initialize [2022-11-03 01:57:41,764 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_mapping_error [2022-11-03 01:57:41,764 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_mapping_error [2022-11-03 01:57:41,765 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read_sh_reg [2022-11-03 01:57:41,765 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read_sh_reg [2022-11-03 01:57:41,765 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_offset [2022-11-03 01:57:41,765 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_offset [2022-11-03 01:57:41,765 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-11-03 01:57:41,765 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-11-03 01:57:41,765 INFO L130 BoogieDeclarations]: Found specification of procedure skb_network_header [2022-11-03 01:57:41,766 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_network_header [2022-11-03 01:57:41,766 INFO L130 BoogieDeclarations]: Found specification of procedure ql_write_db_reg [2022-11-03 01:57:41,766 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_write_db_reg [2022-11-03 01:57:41,766 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-03 01:57:41,766 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-03 01:57:41,766 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mb_get_port_cfg [2022-11-03 01:57:41,767 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mb_get_port_cfg [2022-11-03 01:57:41,767 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_vlan_rx_add_vid [2022-11-03 01:57:41,767 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_vlan_rx_add_vid [2022-11-03 01:57:41,767 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-03 01:57:41,767 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_irq_1 [2022-11-03 01:57:41,767 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_irq_1 [2022-11-03 01:57:41,767 INFO L130 BoogieDeclarations]: Found specification of procedure eth_type_trans [2022-11-03 01:57:41,768 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_type_trans [2022-11-03 01:57:41,768 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-03 01:57:41,768 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-03 01:57:41,768 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_change_mtu [2022-11-03 01:57:41,768 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_change_mtu [2022-11-03 01:57:41,768 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_fix_features [2022-11-03 01:57:41,768 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_fix_features [2022-11-03 01:57:41,769 INFO L130 BoogieDeclarations]: Found specification of procedure ql_adapter_down [2022-11-03 01:57:41,769 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_adapter_down [2022-11-03 01:57:41,769 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2022-11-03 01:57:41,769 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2022-11-03 01:57:41,769 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2022-11-03 01:57:41,769 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2022-11-03 01:57:41,770 INFO L130 BoogieDeclarations]: Found specification of procedure ql_queue_fw_error [2022-11-03 01:57:41,770 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_queue_fw_error [2022-11-03 01:57:41,770 INFO L130 BoogieDeclarations]: Found specification of procedure ql_unmap_send [2022-11-03 01:57:41,770 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_unmap_send [2022-11-03 01:57:41,770 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2022-11-03 01:57:41,770 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2022-11-03 01:57:41,770 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mpi_handler [2022-11-03 01:57:41,771 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mpi_handler [2022-11-03 01:57:41,771 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read_xgmac_reg64 [2022-11-03 01:57:41,771 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read_xgmac_reg64 [2022-11-03 01:57:41,771 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2022-11-03 01:57:41,771 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2022-11-03 01:57:41,771 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mb_set_mgmnt_traffic_ctl [2022-11-03 01:57:41,772 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mb_set_mgmnt_traffic_ctl [2022-11-03 01:57:41,772 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read_other_func_reg [2022-11-03 01:57:41,772 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read_other_func_reg [2022-11-03 01:57:41,772 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2022-11-03 01:57:41,772 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2022-11-03 01:57:41,772 INFO L130 BoogieDeclarations]: Found specification of procedure ql_wait_reg_rdy [2022-11-03 01:57:41,772 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_wait_reg_rdy [2022-11-03 01:57:41,773 INFO L130 BoogieDeclarations]: Found specification of procedure ql_set_routing_reg [2022-11-03 01:57:41,773 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_set_routing_reg [2022-11-03 01:57:41,773 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_stop_queue [2022-11-03 01:57:41,773 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_stop_queue [2022-11-03 01:57:41,773 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec [2022-11-03 01:57:41,773 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec [2022-11-03 01:57:41,774 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mb_set_led_cfg [2022-11-03 01:57:41,774 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mb_set_led_cfg [2022-11-03 01:57:41,774 INFO L130 BoogieDeclarations]: Found specification of procedure ql_write_cfg [2022-11-03 01:57:41,774 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_write_cfg [2022-11-03 01:57:41,774 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_mac_addr_reg [2022-11-03 01:57:41,774 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_mac_addr_reg [2022-11-03 01:57:41,775 INFO L130 BoogieDeclarations]: Found specification of procedure ql_lbq_block_size [2022-11-03 01:57:41,775 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_lbq_block_size [2022-11-03 01:57:41,775 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2022-11-03 01:57:41,775 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2022-11-03 01:57:41,775 INFO L130 BoogieDeclarations]: Found specification of procedure ql_own_firmware [2022-11-03 01:57:41,775 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_own_firmware [2022-11-03 01:57:41,775 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2022-11-03 01:57:41,776 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2022-11-03 01:57:41,776 INFO L130 BoogieDeclarations]: Found specification of procedure netif_get_num_default_rss_queues [2022-11-03 01:57:41,776 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_get_num_default_rss_queues [2022-11-03 01:57:41,776 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_curr_lchunk [2022-11-03 01:57:41,776 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_curr_lchunk [2022-11-03 01:57:41,776 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_ets_regs [2022-11-03 01:57:41,777 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_ets_regs [2022-11-03 01:57:41,777 INFO L130 BoogieDeclarations]: Found specification of procedure ql_wait_cfg [2022-11-03 01:57:41,777 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_wait_cfg [2022-11-03 01:57:41,777 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2022-11-03 01:57:41,777 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2022-11-03 01:57:41,777 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-11-03 01:57:41,777 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-11-03 01:57:41,778 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-03 01:57:41,778 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read32 [2022-11-03 01:57:41,778 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read32 [2022-11-03 01:57:41,778 INFO L130 BoogieDeclarations]: Found specification of procedure ql_set_mac_addr [2022-11-03 01:57:41,778 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_set_mac_addr [2022-11-03 01:57:41,778 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_intr_states [2022-11-03 01:57:41,779 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_intr_states [2022-11-03 01:57:41,779 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_sync_single_for_device [2022-11-03 01:57:41,779 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_sync_single_for_device [2022-11-03 01:57:41,779 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_resume [2022-11-03 01:57:41,779 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_resume [2022-11-03 01:57:41,779 INFO L130 BoogieDeclarations]: Found specification of procedure ql_core_dump [2022-11-03 01:57:41,780 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_core_dump [2022-11-03 01:57:43,533 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 01:57:43,538 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 01:57:43,641 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-03 01:58:08,645 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 01:58:15,212 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 01:58:15,212 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-03 01:58:15,223 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 01:58:15 BoogieIcfgContainer [2022-11-03 01:58:15,223 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 01:58:15,226 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 01:58:15,226 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 01:58:15,232 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 01:58:15,232 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 01:57:32" (1/3) ... [2022-11-03 01:58:15,233 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63c4736a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 01:58:15, skipping insertion in model container [2022-11-03 01:58:15,233 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:57:39" (2/3) ... [2022-11-03 01:58:15,234 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63c4736a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 01:58:15, skipping insertion in model container [2022-11-03 01:58:15,234 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 01:58:15" (3/3) ... [2022-11-03 01:58:15,240 INFO L112 eAbstractionObserver]: Analyzing ICFG 43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--net--ethernet--qlogic--qlge--qlge.ko-entry_point.cil.out.i [2022-11-03 01:58:15,262 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 01:58:15,262 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-03 01:58:15,401 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 01:58:15,413 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;@4ec231f1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 01:58:15,414 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-03 01:58:15,430 INFO L276 IsEmpty]: Start isEmpty. Operand has 3704 states, 2260 states have (on average 1.331858407079646) internal successors, (3010), 2334 states have internal predecessors, (3010), 1207 states have call successors, (1207), 236 states have call predecessors, (1207), 235 states have return successors, (1197), 1182 states have call predecessors, (1197), 1197 states have call successors, (1197) [2022-11-03 01:58:15,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-11-03 01:58:15,490 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:58:15,491 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:58:15,492 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:58:15,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:58:15,500 INFO L85 PathProgramCache]: Analyzing trace with hash 105927183, now seen corresponding path program 1 times [2022-11-03 01:58:15,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:58:15,515 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1781832495] [2022-11-03 01:58:15,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:58:15,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:58:16,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:58:16,970 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 59 trivial. 0 not checked. [2022-11-03 01:58:16,970 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:58:16,971 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1781832495] [2022-11-03 01:58:16,972 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1781832495] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:58:16,972 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:58:16,972 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 01:58:16,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [395801825] [2022-11-03 01:58:16,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:58:16,984 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 01:58:16,984 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:58:17,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 01:58:17,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 01:58:17,034 INFO L87 Difference]: Start difference. First operand has 3704 states, 2260 states have (on average 1.331858407079646) internal successors, (3010), 2334 states have internal predecessors, (3010), 1207 states have call successors, (1207), 236 states have call predecessors, (1207), 235 states have return successors, (1197), 1182 states have call predecessors, (1197), 1197 states have call successors, (1197) Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-11-03 01:58:19,272 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.22s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:58:21,689 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:58:24,074 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 01:58:29,519 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:58:31,353 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.83s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:58:35,008 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:58:41,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:58:41,548 INFO L93 Difference]: Finished difference Result 10939 states and 16051 transitions. [2022-11-03 01:58:41,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 01:58:41,550 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 130 [2022-11-03 01:58:41,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:58:41,632 INFO L225 Difference]: With dead ends: 10939 [2022-11-03 01:58:41,633 INFO L226 Difference]: Without dead ends: 7211 [2022-11-03 01:58:41,666 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 01:58:41,669 INFO L413 NwaCegarLoop]: 6384 mSDtfsCounter, 5164 mSDsluCounter, 5373 mSDsCounter, 0 mSdLazyCounter, 1365 mSolverCounterSat, 1 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5169 SdHoareTripleChecker+Valid, 11144 SdHoareTripleChecker+Invalid, 1371 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1365 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.8s IncrementalHoareTripleChecker+Time [2022-11-03 01:58:41,670 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5169 Valid, 11144 Invalid, 1371 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 1365 Invalid, 5 Unknown, 0 Unchecked, 23.8s Time] [2022-11-03 01:58:41,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7211 states. [2022-11-03 01:58:42,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7211 to 7204. [2022-11-03 01:58:42,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7204 states, 4402 states have (on average 1.323489323034984) internal successors, (5826), 4526 states have internal predecessors, (5826), 2337 states have call successors, (2337), 465 states have call predecessors, (2337), 464 states have return successors, (2340), 2302 states have call predecessors, (2340), 2335 states have call successors, (2340) [2022-11-03 01:58:42,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7204 states to 7204 states and 10503 transitions. [2022-11-03 01:58:42,363 INFO L78 Accepts]: Start accepts. Automaton has 7204 states and 10503 transitions. Word has length 130 [2022-11-03 01:58:42,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:58:42,365 INFO L495 AbstractCegarLoop]: Abstraction has 7204 states and 10503 transitions. [2022-11-03 01:58:42,366 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-11-03 01:58:42,366 INFO L276 IsEmpty]: Start isEmpty. Operand 7204 states and 10503 transitions. [2022-11-03 01:58:42,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-11-03 01:58:42,379 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:58:42,380 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:58:42,380 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-03 01:58:42,381 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:58:42,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:58:42,382 INFO L85 PathProgramCache]: Analyzing trace with hash -1405795938, now seen corresponding path program 1 times [2022-11-03 01:58:42,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:58:42,382 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1759498073] [2022-11-03 01:58:42,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:58:42,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:58:42,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:58:43,517 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2022-11-03 01:58:43,517 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:58:43,517 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1759498073] [2022-11-03 01:58:43,518 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1759498073] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:58:43,518 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:58:43,518 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 01:58:43,518 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1802204502] [2022-11-03 01:58:43,519 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:58:43,520 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 01:58:43,521 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:58:43,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 01:58:43,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 01:58:43,522 INFO L87 Difference]: Start difference. First operand 7204 states and 10503 transitions. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-03 01:58:45,729 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.20s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:58:47,989 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:58:51,829 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 01:58:56,394 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:58:58,444 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:59:06,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:59:06,473 INFO L93 Difference]: Finished difference Result 21026 states and 30619 transitions. [2022-11-03 01:59:06,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 01:59:06,474 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 121 [2022-11-03 01:59:06,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:59:06,582 INFO L225 Difference]: With dead ends: 21026 [2022-11-03 01:59:06,582 INFO L226 Difference]: Without dead ends: 13841 [2022-11-03 01:59:06,630 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 01:59:06,631 INFO L413 NwaCegarLoop]: 6712 mSDtfsCounter, 4905 mSDsluCounter, 5245 mSDsCounter, 0 mSdLazyCounter, 1514 mSolverCounterSat, 7 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4910 SdHoareTripleChecker+Valid, 11352 SdHoareTripleChecker+Invalid, 1526 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1514 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.1s IncrementalHoareTripleChecker+Time [2022-11-03 01:59:06,632 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4910 Valid, 11352 Invalid, 1526 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1514 Invalid, 5 Unknown, 0 Unchecked, 22.1s Time] [2022-11-03 01:59:06,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13841 states. [2022-11-03 01:59:07,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13841 to 13829. [2022-11-03 01:59:07,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13829 states, 8424 states have (on average 1.320750237416904) internal successors, (11126), 8681 states have internal predecessors, (11126), 4496 states have call successors, (4496), 911 states have call predecessors, (4496), 908 states have return successors, (4509), 4416 states have call predecessors, (4509), 4494 states have call successors, (4509) [2022-11-03 01:59:07,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13829 states to 13829 states and 20131 transitions. [2022-11-03 01:59:07,385 INFO L78 Accepts]: Start accepts. Automaton has 13829 states and 20131 transitions. Word has length 121 [2022-11-03 01:59:07,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:59:07,386 INFO L495 AbstractCegarLoop]: Abstraction has 13829 states and 20131 transitions. [2022-11-03 01:59:07,387 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-03 01:59:07,387 INFO L276 IsEmpty]: Start isEmpty. Operand 13829 states and 20131 transitions. [2022-11-03 01:59:07,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2022-11-03 01:59:07,404 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:59:07,405 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 3, 3, 3, 3, 3, 3, 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] [2022-11-03 01:59:07,405 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-03 01:59:07,405 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:59:07,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:59:07,416 INFO L85 PathProgramCache]: Analyzing trace with hash -674229498, now seen corresponding path program 1 times [2022-11-03 01:59:07,416 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:59:07,416 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1142065355] [2022-11-03 01:59:07,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:59:07,417 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:59:07,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:59:08,500 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2022-11-03 01:59:08,500 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:59:08,500 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1142065355] [2022-11-03 01:59:08,501 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1142065355] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:59:08,501 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:59:08,501 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 01:59:08,501 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [333608388] [2022-11-03 01:59:08,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:59:08,503 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 01:59:08,503 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:59:08,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 01:59:08,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 01:59:08,505 INFO L87 Difference]: Start difference. First operand 13829 states and 20131 transitions. Second operand has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2022-11-03 01:59:10,687 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:59:13,359 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:59:15,748 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 01:59:22,602 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:59:25,627 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:59:27,967 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:59:31,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:59:31,272 INFO L93 Difference]: Finished difference Result 39744 states and 57870 transitions. [2022-11-03 01:59:31,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 01:59:31,273 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 151 [2022-11-03 01:59:31,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:59:31,446 INFO L225 Difference]: With dead ends: 39744 [2022-11-03 01:59:31,446 INFO L226 Difference]: Without dead ends: 25934 [2022-11-03 01:59:31,512 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 01:59:31,513 INFO L413 NwaCegarLoop]: 6418 mSDtfsCounter, 4918 mSDsluCounter, 5336 mSDsCounter, 0 mSdLazyCounter, 1324 mSolverCounterSat, 1 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4922 SdHoareTripleChecker+Valid, 11145 SdHoareTripleChecker+Invalid, 1331 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1324 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.8s IncrementalHoareTripleChecker+Time [2022-11-03 01:59:31,514 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4922 Valid, 11145 Invalid, 1331 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1324 Invalid, 6 Unknown, 0 Unchecked, 21.8s Time] [2022-11-03 01:59:31,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25934 states. [2022-11-03 01:59:32,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25934 to 25926. [2022-11-03 01:59:32,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25926 states, 15818 states have (on average 1.32279681375648) internal successors, (20924), 16292 states have internal predecessors, (20924), 8404 states have call successors, (8404), 1706 states have call predecessors, (8404), 1703 states have return successors, (8428), 8264 states have call predecessors, (8428), 8402 states have call successors, (8428) [2022-11-03 01:59:33,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25926 states to 25926 states and 37756 transitions. [2022-11-03 01:59:33,060 INFO L78 Accepts]: Start accepts. Automaton has 25926 states and 37756 transitions. Word has length 151 [2022-11-03 01:59:33,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:59:33,060 INFO L495 AbstractCegarLoop]: Abstraction has 25926 states and 37756 transitions. [2022-11-03 01:59:33,061 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2022-11-03 01:59:33,061 INFO L276 IsEmpty]: Start isEmpty. Operand 25926 states and 37756 transitions. [2022-11-03 01:59:33,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2022-11-03 01:59:33,080 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:59:33,080 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 6, 6, 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] [2022-11-03 01:59:33,080 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-03 01:59:33,080 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:59:33,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:59:33,082 INFO L85 PathProgramCache]: Analyzing trace with hash -1747239250, now seen corresponding path program 1 times [2022-11-03 01:59:33,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:59:33,082 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2101743805] [2022-11-03 01:59:33,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:59:33,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:59:33,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:59:34,294 INFO L134 CoverageAnalysis]: Checked inductivity of 274 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 267 trivial. 0 not checked. [2022-11-03 01:59:34,295 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:59:34,295 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2101743805] [2022-11-03 01:59:34,295 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2101743805] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:59:34,295 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:59:34,296 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 01:59:34,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1460874339] [2022-11-03 01:59:34,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:59:34,297 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 01:59:34,297 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:59:34,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 01:59:34,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 01:59:34,298 INFO L87 Difference]: Start difference. First operand 25926 states and 37756 transitions. Second operand has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 3 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) [2022-11-03 01:59:36,505 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.20s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:59:39,297 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:59:41,787 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 01:59:44,810 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:59:52,519 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:59:54,486 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.97s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:59:57,899 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:00:03,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:00:03,526 INFO L93 Difference]: Finished difference Result 64739 states and 94273 transitions. [2022-11-03 02:00:03,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:00:03,527 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 3 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) Word has length 192 [2022-11-03 02:00:03,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:00:03,780 INFO L225 Difference]: With dead ends: 64739 [2022-11-03 02:00:03,780 INFO L226 Difference]: Without dead ends: 38832 [2022-11-03 02:00:04,037 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 02:00:04,039 INFO L413 NwaCegarLoop]: 8442 mSDtfsCounter, 5240 mSDsluCounter, 5321 mSDsCounter, 0 mSdLazyCounter, 1699 mSolverCounterSat, 16 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 26.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5245 SdHoareTripleChecker+Valid, 13155 SdHoareTripleChecker+Invalid, 1721 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 1699 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 27.8s IncrementalHoareTripleChecker+Time [2022-11-03 02:00:04,041 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5245 Valid, 13155 Invalid, 1721 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 1699 Invalid, 6 Unknown, 0 Unchecked, 27.8s Time] [2022-11-03 02:00:04,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38832 states. [2022-11-03 02:00:05,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38832 to 38820. [2022-11-03 02:00:05,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38820 states, 23688 states have (on average 1.3219773725092874) internal successors, (31315), 24397 states have internal predecessors, (31315), 12571 states have call successors, (12571), 2564 states have call predecessors, (12571), 2560 states have return successors, (12608), 12359 states have call predecessors, (12608), 12569 states have call successors, (12608) [2022-11-03 02:00:06,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38820 states to 38820 states and 56494 transitions. [2022-11-03 02:00:06,494 INFO L78 Accepts]: Start accepts. Automaton has 38820 states and 56494 transitions. Word has length 192 [2022-11-03 02:00:06,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:00:06,500 INFO L495 AbstractCegarLoop]: Abstraction has 38820 states and 56494 transitions. [2022-11-03 02:00:06,501 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 3 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) [2022-11-03 02:00:06,501 INFO L276 IsEmpty]: Start isEmpty. Operand 38820 states and 56494 transitions. [2022-11-03 02:00:06,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2022-11-03 02:00:06,527 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:00:06,528 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 9, 9, 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] [2022-11-03 02:00:06,528 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-03 02:00:06,528 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:00:06,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:00:06,529 INFO L85 PathProgramCache]: Analyzing trace with hash 1415797862, now seen corresponding path program 1 times [2022-11-03 02:00:06,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:00:06,529 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1058084744] [2022-11-03 02:00:06,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:00:06,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:00:06,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:00:07,441 INFO L134 CoverageAnalysis]: Checked inductivity of 380 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 380 trivial. 0 not checked. [2022-11-03 02:00:07,441 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:00:07,442 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1058084744] [2022-11-03 02:00:07,442 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1058084744] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:00:07,442 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:00:07,442 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:00:07,443 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1829040530] [2022-11-03 02:00:07,443 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:00:07,443 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:00:07,444 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:00:07,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:00:07,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:00:07,445 INFO L87 Difference]: Start difference. First operand 38820 states and 56494 transitions. Second operand has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (38), 2 states have call predecessors, (38), 1 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2022-11-03 02:00:09,636 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:00:12,337 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:00:14,893 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:00:20,731 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:00:23,969 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:00:26,018 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:00:33,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:00:33,279 INFO L93 Difference]: Finished difference Result 101046 states and 146286 transitions. [2022-11-03 02:00:33,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:00:33,280 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (38), 2 states have call predecessors, (38), 1 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) Word has length 213 [2022-11-03 02:00:33,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:00:33,816 INFO L225 Difference]: With dead ends: 101046 [2022-11-03 02:00:33,816 INFO L226 Difference]: Without dead ends: 62245 [2022-11-03 02:00:34,020 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 02:00:34,021 INFO L413 NwaCegarLoop]: 6679 mSDtfsCounter, 3556 mSDsluCounter, 5310 mSDsCounter, 0 mSdLazyCounter, 1482 mSolverCounterSat, 1 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3562 SdHoareTripleChecker+Valid, 11388 SdHoareTripleChecker+Invalid, 1488 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1482 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.7s IncrementalHoareTripleChecker+Time [2022-11-03 02:00:34,021 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3562 Valid, 11388 Invalid, 1488 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1482 Invalid, 5 Unknown, 0 Unchecked, 23.7s Time] [2022-11-03 02:00:34,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62245 states. [2022-11-03 02:00:36,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62245 to 62239. [2022-11-03 02:00:36,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62239 states, 38202 states have (on average 1.3200356002303544) internal successors, (50428), 39336 states have internal predecessors, (50428), 19644 states have call successors, (19644), 4399 states have call predecessors, (19644), 4392 states have return successors, (19731), 19318 states have call predecessors, (19731), 19642 states have call successors, (19731) [2022-11-03 02:00:37,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62239 states to 62239 states and 89803 transitions. [2022-11-03 02:00:37,331 INFO L78 Accepts]: Start accepts. Automaton has 62239 states and 89803 transitions. Word has length 213 [2022-11-03 02:00:37,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:00:37,332 INFO L495 AbstractCegarLoop]: Abstraction has 62239 states and 89803 transitions. [2022-11-03 02:00:37,332 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (38), 2 states have call predecessors, (38), 1 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2022-11-03 02:00:37,332 INFO L276 IsEmpty]: Start isEmpty. Operand 62239 states and 89803 transitions. [2022-11-03 02:00:37,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2022-11-03 02:00:37,385 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:00:37,385 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 6, 6, 3, 3, 3, 3, 3, 3, 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] [2022-11-03 02:00:37,386 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-03 02:00:37,386 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:00:37,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:00:37,387 INFO L85 PathProgramCache]: Analyzing trace with hash -2088933976, now seen corresponding path program 1 times [2022-11-03 02:00:37,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:00:37,387 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [444177068] [2022-11-03 02:00:37,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:00:37,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:00:37,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:00:38,953 INFO L134 CoverageAnalysis]: Checked inductivity of 292 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 292 trivial. 0 not checked. [2022-11-03 02:00:38,953 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:00:38,954 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [444177068] [2022-11-03 02:00:38,954 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [444177068] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:00:38,954 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:00:38,954 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 02:00:38,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2068825679] [2022-11-03 02:00:38,955 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:00:38,955 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 02:00:38,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:00:38,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 02:00:38,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:00:38,957 INFO L87 Difference]: Start difference. First operand 62239 states and 89803 transitions. Second operand has 5 states, 5 states have (on average 17.2) internal successors, (86), 4 states have internal predecessors, (86), 2 states have call successors, (33), 2 states have call predecessors, (33), 3 states have return successors, (30), 3 states have call predecessors, (30), 2 states have call successors, (30) [2022-11-03 02:00:41,153 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:00:44,442 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:00:47,219 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:00:55,041 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:00:57,813 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:00:59,866 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:01:03,440 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:01:12,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:01:12,075 INFO L93 Difference]: Finished difference Result 124651 states and 181234 transitions. [2022-11-03 02:01:12,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-03 02:01:12,076 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 4 states have internal predecessors, (86), 2 states have call successors, (33), 2 states have call predecessors, (33), 3 states have return successors, (30), 3 states have call predecessors, (30), 2 states have call successors, (30) Word has length 206 [2022-11-03 02:01:12,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:01:12,457 INFO L225 Difference]: With dead ends: 124651 [2022-11-03 02:01:12,458 INFO L226 Difference]: Without dead ends: 62431 [2022-11-03 02:01:12,751 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-03 02:01:12,752 INFO L413 NwaCegarLoop]: 4752 mSDtfsCounter, 5 mSDsluCounter, 16060 mSDsCounter, 0 mSdLazyCounter, 2481 mSolverCounterSat, 3 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 29.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 18977 SdHoareTripleChecker+Invalid, 2490 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2481 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 30.5s IncrementalHoareTripleChecker+Time [2022-11-03 02:01:12,753 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 18977 Invalid, 2490 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 2481 Invalid, 6 Unknown, 0 Unchecked, 30.5s Time] [2022-11-03 02:01:12,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62431 states. [2022-11-03 02:01:15,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62431 to 62335. [2022-11-03 02:01:15,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62335 states, 38274 states have (on average 1.3194335580289491) internal successors, (50500), 39408 states have internal predecessors, (50500), 19644 states have call successors, (19644), 4399 states have call predecessors, (19644), 4416 states have return successors, (20077), 19342 states have call predecessors, (20077), 19642 states have call successors, (20077) [2022-11-03 02:01:16,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62335 states to 62335 states and 90221 transitions. [2022-11-03 02:01:16,172 INFO L78 Accepts]: Start accepts. Automaton has 62335 states and 90221 transitions. Word has length 206 [2022-11-03 02:01:16,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:01:16,173 INFO L495 AbstractCegarLoop]: Abstraction has 62335 states and 90221 transitions. [2022-11-03 02:01:16,173 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 4 states have internal predecessors, (86), 2 states have call successors, (33), 2 states have call predecessors, (33), 3 states have return successors, (30), 3 states have call predecessors, (30), 2 states have call successors, (30) [2022-11-03 02:01:16,173 INFO L276 IsEmpty]: Start isEmpty. Operand 62335 states and 90221 transitions. [2022-11-03 02:01:16,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2022-11-03 02:01:16,231 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:01:16,232 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 6, 6, 3, 3, 3, 3, 3, 3, 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 02:01:16,232 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-03 02:01:16,232 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:01:16,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:01:16,233 INFO L85 PathProgramCache]: Analyzing trace with hash -1156798312, now seen corresponding path program 1 times [2022-11-03 02:01:16,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:01:16,233 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2102596035] [2022-11-03 02:01:16,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:01:16,234 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:01:16,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:01:17,804 INFO L134 CoverageAnalysis]: Checked inductivity of 292 backedges. 14 proven. 11 refuted. 0 times theorem prover too weak. 267 trivial. 0 not checked. [2022-11-03 02:01:17,805 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:01:17,805 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2102596035] [2022-11-03 02:01:17,805 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2102596035] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:01:17,806 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [954201906] [2022-11-03 02:01:17,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:01:17,806 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:01:17,806 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4145a0d-f36f-4785-92a7-708e29530719/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:01:17,812 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4145a0d-f36f-4785-92a7-708e29530719/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:01:17,842 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4145a0d-f36f-4785-92a7-708e29530719/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-03 02:01:20,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:01:20,961 INFO L263 TraceCheckSpWp]: Trace formula consists of 8847 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-03 02:01:20,979 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:01:21,200 INFO L134 CoverageAnalysis]: Checked inductivity of 292 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 292 trivial. 0 not checked. [2022-11-03 02:01:21,200 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:01:21,201 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [954201906] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:01:21,201 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-03 02:01:21,201 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [4] total 8 [2022-11-03 02:01:21,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1104944265] [2022-11-03 02:01:21,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:01:21,202 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 02:01:21,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:01:21,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 02:01:21,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-03 02:01:21,203 INFO L87 Difference]: Start difference. First operand 62335 states and 90221 transitions. Second operand has 6 states, 5 states have (on average 17.8) internal successors, (89), 6 states have internal predecessors, (89), 5 states have call successors, (34), 2 states have call predecessors, (34), 4 states have return successors, (31), 4 states have call predecessors, (31), 5 states have call successors, (31) [2022-11-03 02:01:23,423 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.22s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:01:27,093 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:01:30,840 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:01:35,667 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:01:44,226 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:01:46,081 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.85s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:01:47,106 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:01:49,139 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:01:50,901 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.76s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:01:54,132 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:01:56,159 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:02:06,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:02:06,894 INFO L93 Difference]: Finished difference Result 125011 states and 183907 transitions. [2022-11-03 02:02:06,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-03 02:02:06,899 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 17.8) internal successors, (89), 6 states have internal predecessors, (89), 5 states have call successors, (34), 2 states have call predecessors, (34), 4 states have return successors, (31), 4 states have call predecessors, (31), 5 states have call successors, (31) Word has length 211 [2022-11-03 02:02:06,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:02:07,462 INFO L225 Difference]: With dead ends: 125011 [2022-11-03 02:02:07,462 INFO L226 Difference]: Without dead ends: 62575 [2022-11-03 02:02:07,795 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 215 GetRequests, 208 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2022-11-03 02:02:07,796 INFO L413 NwaCegarLoop]: 4735 mSDtfsCounter, 19 mSDsluCounter, 21310 mSDsCounter, 0 mSdLazyCounter, 3252 mSolverCounterSat, 23 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 41.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 23592 SdHoareTripleChecker+Invalid, 3281 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 3252 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 43.4s IncrementalHoareTripleChecker+Time [2022-11-03 02:02:07,797 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 23592 Invalid, 3281 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [23 Valid, 3252 Invalid, 6 Unknown, 0 Unchecked, 43.4s Time] [2022-11-03 02:02:07,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62575 states. [2022-11-03 02:02:10,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62575 to 62551. [2022-11-03 02:02:10,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62551 states, 38382 states have (on average 1.3191600229274139) internal successors, (50632), 39552 states have internal predecessors, (50632), 19716 states have call successors, (19716), 4399 states have call predecessors, (19716), 4452 states have return successors, (20209), 19414 states have call predecessors, (20209), 19714 states have call successors, (20209) [2022-11-03 02:02:10,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62551 states to 62551 states and 90557 transitions. [2022-11-03 02:02:10,461 INFO L78 Accepts]: Start accepts. Automaton has 62551 states and 90557 transitions. Word has length 211 [2022-11-03 02:02:10,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:02:10,462 INFO L495 AbstractCegarLoop]: Abstraction has 62551 states and 90557 transitions. [2022-11-03 02:02:10,462 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 17.8) internal successors, (89), 6 states have internal predecessors, (89), 5 states have call successors, (34), 2 states have call predecessors, (34), 4 states have return successors, (31), 4 states have call predecessors, (31), 5 states have call successors, (31) [2022-11-03 02:02:10,462 INFO L276 IsEmpty]: Start isEmpty. Operand 62551 states and 90557 transitions. [2022-11-03 02:02:10,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2022-11-03 02:02:10,535 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:02:10,536 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 6, 6, 3, 3, 3, 3, 3, 3, 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 02:02:10,603 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4145a0d-f36f-4785-92a7-708e29530719/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-03 02:02:10,750 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4145a0d-f36f-4785-92a7-708e29530719/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:02:10,751 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:02:10,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:02:10,752 INFO L85 PathProgramCache]: Analyzing trace with hash -442095770, now seen corresponding path program 1 times [2022-11-03 02:02:10,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:02:10,752 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [501105862] [2022-11-03 02:02:10,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:02:10,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:02:11,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:02:12,346 INFO L134 CoverageAnalysis]: Checked inductivity of 292 backedges. 14 proven. 11 refuted. 0 times theorem prover too weak. 267 trivial. 0 not checked. [2022-11-03 02:02:12,346 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:02:12,346 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [501105862] [2022-11-03 02:02:12,347 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [501105862] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:02:12,347 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [694901126] [2022-11-03 02:02:12,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:02:12,347 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:02:12,348 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4145a0d-f36f-4785-92a7-708e29530719/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:02:12,349 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4145a0d-f36f-4785-92a7-708e29530719/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:02:12,374 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4145a0d-f36f-4785-92a7-708e29530719/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-03 02:02:15,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:02:15,100 INFO L263 TraceCheckSpWp]: Trace formula consists of 8849 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-03 02:02:15,111 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:02:15,301 INFO L134 CoverageAnalysis]: Checked inductivity of 292 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 292 trivial. 0 not checked. [2022-11-03 02:02:15,301 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:02:15,302 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [694901126] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:02:15,302 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-03 02:02:15,302 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [4] total 9 [2022-11-03 02:02:15,302 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [452762914] [2022-11-03 02:02:15,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:02:15,303 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-03 02:02:15,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:02:15,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-03 02:02:15,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2022-11-03 02:02:15,304 INFO L87 Difference]: Start difference. First operand 62551 states and 90557 transitions. Second operand has 7 states, 6 states have (on average 15.0) internal successors, (90), 7 states have internal predecessors, (90), 5 states have call successors, (34), 2 states have call predecessors, (34), 4 states have return successors, (31), 4 states have call predecessors, (31), 5 states have call successors, (31) [2022-11-03 02:02:17,491 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:02:21,389 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:02:25,036 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:02:35,842 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:02:38,820 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:02:41,685 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:02:43,517 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.83s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:02:45,548 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:02:47,528 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:02:54,418 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:02:56,198 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:03:06,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:03:06,616 INFO L93 Difference]: Finished difference Result 125443 states and 184603 transitions. [2022-11-03 02:03:06,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 02:03:06,617 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 15.0) internal successors, (90), 7 states have internal predecessors, (90), 5 states have call successors, (34), 2 states have call predecessors, (34), 4 states have return successors, (31), 4 states have call predecessors, (31), 5 states have call successors, (31) Word has length 212 [2022-11-03 02:03:06,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:03:07,065 INFO L225 Difference]: With dead ends: 125443 [2022-11-03 02:03:07,065 INFO L226 Difference]: Without dead ends: 62791 [2022-11-03 02:03:07,356 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 218 GetRequests, 208 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2022-11-03 02:03:07,357 INFO L413 NwaCegarLoop]: 4724 mSDtfsCounter, 37 mSDsluCounter, 26587 mSDsCounter, 0 mSdLazyCounter, 3930 mSolverCounterSat, 32 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 46.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 28245 SdHoareTripleChecker+Invalid, 3968 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 3930 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 48.8s IncrementalHoareTripleChecker+Time [2022-11-03 02:03:07,357 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 28245 Invalid, 3968 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [32 Valid, 3930 Invalid, 6 Unknown, 0 Unchecked, 48.8s Time] [2022-11-03 02:03:07,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62791 states. [2022-11-03 02:03:09,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62791 to 62551. [2022-11-03 02:03:09,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62551 states, 38382 states have (on average 1.3191600229274139) internal successors, (50632), 39552 states have internal predecessors, (50632), 19716 states have call successors, (19716), 4399 states have call predecessors, (19716), 4452 states have return successors, (20209), 19414 states have call predecessors, (20209), 19714 states have call successors, (20209) [2022-11-03 02:03:09,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62551 states to 62551 states and 90557 transitions. [2022-11-03 02:03:09,969 INFO L78 Accepts]: Start accepts. Automaton has 62551 states and 90557 transitions. Word has length 212 [2022-11-03 02:03:09,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:03:09,970 INFO L495 AbstractCegarLoop]: Abstraction has 62551 states and 90557 transitions. [2022-11-03 02:03:09,970 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 15.0) internal successors, (90), 7 states have internal predecessors, (90), 5 states have call successors, (34), 2 states have call predecessors, (34), 4 states have return successors, (31), 4 states have call predecessors, (31), 5 states have call successors, (31) [2022-11-03 02:03:09,970 INFO L276 IsEmpty]: Start isEmpty. Operand 62551 states and 90557 transitions. [2022-11-03 02:03:10,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2022-11-03 02:03:10,017 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:03:10,018 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 6, 6, 3, 3, 3, 3, 3, 3, 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 02:03:10,081 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4145a0d-f36f-4785-92a7-708e29530719/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-03 02:03:10,246 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4145a0d-f36f-4785-92a7-708e29530719/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:03:10,247 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:03:10,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:03:10,248 INFO L85 PathProgramCache]: Analyzing trace with hash -2004636643, now seen corresponding path program 1 times [2022-11-03 02:03:10,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:03:10,248 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [418617937] [2022-11-03 02:03:10,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:03:10,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:03:10,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:03:11,864 INFO L134 CoverageAnalysis]: Checked inductivity of 292 backedges. 14 proven. 11 refuted. 0 times theorem prover too weak. 267 trivial. 0 not checked. [2022-11-03 02:03:11,865 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:03:11,865 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [418617937] [2022-11-03 02:03:11,865 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [418617937] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:03:11,866 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [502509761] [2022-11-03 02:03:11,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:03:11,866 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:03:11,866 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4145a0d-f36f-4785-92a7-708e29530719/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:03:11,871 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4145a0d-f36f-4785-92a7-708e29530719/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:03:11,897 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4145a0d-f36f-4785-92a7-708e29530719/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-03 02:03:14,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:03:14,584 INFO L263 TraceCheckSpWp]: Trace formula consists of 8851 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-03 02:03:14,640 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:03:14,822 INFO L134 CoverageAnalysis]: Checked inductivity of 292 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 292 trivial. 0 not checked. [2022-11-03 02:03:14,823 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:03:14,823 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [502509761] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:03:14,823 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-03 02:03:14,824 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [4] total 9 [2022-11-03 02:03:14,824 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [781211183] [2022-11-03 02:03:14,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:03:14,825 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-03 02:03:14,825 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:03:14,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-03 02:03:14,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2022-11-03 02:03:14,826 INFO L87 Difference]: Start difference. First operand 62551 states and 90557 transitions. Second operand has 7 states, 6 states have (on average 15.166666666666666) internal successors, (91), 7 states have internal predecessors, (91), 5 states have call successors, (34), 2 states have call predecessors, (34), 4 states have return successors, (31), 4 states have call predecessors, (31), 5 states have call successors, (31) [2022-11-03 02:03:16,997 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:03:20,626 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:03:24,891 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:03:26,936 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:03:28,967 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:03:31,002 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:03:38,849 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:03:40,144 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:03:41,306 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:03:42,595 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:03:45,872 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:03:47,869 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:03:49,935 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:03:52,020 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:03:53,288 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:03:57,003 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:04:08,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:04:08,492 INFO L93 Difference]: Finished difference Result 125465 states and 184530 transitions. [2022-11-03 02:04:08,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-03 02:04:08,493 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 15.166666666666666) internal successors, (91), 7 states have internal predecessors, (91), 5 states have call successors, (34), 2 states have call predecessors, (34), 4 states have return successors, (31), 4 states have call predecessors, (31), 5 states have call successors, (31) Word has length 213 [2022-11-03 02:04:08,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:04:09,220 INFO L225 Difference]: With dead ends: 125465 [2022-11-03 02:04:09,220 INFO L226 Difference]: Without dead ends: 62913 [2022-11-03 02:04:09,553 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 219 GetRequests, 209 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2022-11-03 02:04:09,554 INFO L413 NwaCegarLoop]: 4723 mSDtfsCounter, 40 mSDsluCounter, 21261 mSDsCounter, 0 mSdLazyCounter, 3287 mSolverCounterSat, 34 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 49.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 23528 SdHoareTripleChecker+Invalid, 3329 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 3287 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 51.3s IncrementalHoareTripleChecker+Time [2022-11-03 02:04:09,554 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 23528 Invalid, 3329 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [34 Valid, 3287 Invalid, 8 Unknown, 0 Unchecked, 51.3s Time] [2022-11-03 02:04:09,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62913 states. [2022-11-03 02:04:11,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62913 to 62859. [2022-11-03 02:04:11,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62859 states, 38558 states have (on average 1.3188443383992945) internal successors, (50852), 39750 states have internal predecessors, (50852), 19804 states have call successors, (19804), 4421 states have call predecessors, (19804), 4496 states have return successors, (20367), 19502 states have call predecessors, (20367), 19802 states have call successors, (20367) [2022-11-03 02:04:12,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62859 states to 62859 states and 91023 transitions. [2022-11-03 02:04:12,205 INFO L78 Accepts]: Start accepts. Automaton has 62859 states and 91023 transitions. Word has length 213 [2022-11-03 02:04:12,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:04:12,207 INFO L495 AbstractCegarLoop]: Abstraction has 62859 states and 91023 transitions. [2022-11-03 02:04:12,207 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 15.166666666666666) internal successors, (91), 7 states have internal predecessors, (91), 5 states have call successors, (34), 2 states have call predecessors, (34), 4 states have return successors, (31), 4 states have call predecessors, (31), 5 states have call successors, (31) [2022-11-03 02:04:12,207 INFO L276 IsEmpty]: Start isEmpty. Operand 62859 states and 91023 transitions. [2022-11-03 02:04:12,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2022-11-03 02:04:12,252 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:04:12,252 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 6, 6, 3, 3, 3, 3, 3, 3, 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] [2022-11-03 02:04:12,317 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4145a0d-f36f-4785-92a7-708e29530719/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-03 02:04:12,478 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4145a0d-f36f-4785-92a7-708e29530719/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:04:12,479 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:04:12,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:04:12,479 INFO L85 PathProgramCache]: Analyzing trace with hash 395143656, now seen corresponding path program 1 times [2022-11-03 02:04:12,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:04:12,479 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1504506558] [2022-11-03 02:04:12,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:04:12,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:04:12,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:04:13,885 INFO L134 CoverageAnalysis]: Checked inductivity of 292 backedges. 14 proven. 11 refuted. 0 times theorem prover too weak. 267 trivial. 0 not checked. [2022-11-03 02:04:13,886 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:04:13,886 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1504506558] [2022-11-03 02:04:13,886 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1504506558] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:04:13,886 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [50727188] [2022-11-03 02:04:13,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:04:13,887 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:04:13,887 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4145a0d-f36f-4785-92a7-708e29530719/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:04:13,888 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4145a0d-f36f-4785-92a7-708e29530719/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:04:13,906 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4145a0d-f36f-4785-92a7-708e29530719/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-03 02:04:16,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:04:16,770 INFO L263 TraceCheckSpWp]: Trace formula consists of 8791 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-03 02:04:16,777 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:04:17,039 INFO L134 CoverageAnalysis]: Checked inductivity of 292 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 292 trivial. 0 not checked. [2022-11-03 02:04:17,039 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:04:17,039 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [50727188] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:04:17,039 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-03 02:04:17,040 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [4] total 13 [2022-11-03 02:04:17,040 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2122967573] [2022-11-03 02:04:17,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:04:17,041 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-03 02:04:17,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:04:17,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-03 02:04:17,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2022-11-03 02:04:17,042 INFO L87 Difference]: Start difference. First operand 62859 states and 91023 transitions. Second operand has 11 states, 11 states have (on average 8.363636363636363) internal successors, (92), 8 states have internal predecessors, (92), 2 states have call successors, (31), 2 states have call predecessors, (31), 5 states have return successors, (28), 5 states have call predecessors, (28), 2 states have call successors, (28) [2022-11-03 02:04:19,182 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:04:23,445 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:04:28,204 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:04:38,836 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:04:43,584 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:04:44,899 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:04:46,125 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:04:49,054 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.79s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:04:51,578 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:04:52,812 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:04:56,585 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:04:58,651 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:05:04,380 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.74s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:05:05,577 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:05:06,711 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:05:08,632 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:05:13,600 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:05:31,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:05:31,234 INFO L93 Difference]: Finished difference Result 125983 states and 183524 transitions. [2022-11-03 02:05:31,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-03 02:05:31,235 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.363636363636363) internal successors, (92), 8 states have internal predecessors, (92), 2 states have call successors, (31), 2 states have call predecessors, (31), 5 states have return successors, (28), 5 states have call predecessors, (28), 2 states have call successors, (28) Word has length 208 [2022-11-03 02:05:31,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:05:31,653 INFO L225 Difference]: With dead ends: 125983 [2022-11-03 02:05:31,654 INFO L226 Difference]: Without dead ends: 63143 [2022-11-03 02:05:31,996 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 213 GetRequests, 200 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=31, Invalid=179, Unknown=0, NotChecked=0, Total=210 [2022-11-03 02:05:31,999 INFO L413 NwaCegarLoop]: 4768 mSDtfsCounter, 6 mSDsluCounter, 48365 mSDsCounter, 0 mSdLazyCounter, 6224 mSolverCounterSat, 2 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 67.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 47630 SdHoareTripleChecker+Invalid, 6231 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 6224 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 71.4s IncrementalHoareTripleChecker+Time [2022-11-03 02:05:31,999 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 47630 Invalid, 6231 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 6224 Invalid, 5 Unknown, 0 Unchecked, 71.4s Time] [2022-11-03 02:05:32,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63143 states. [2022-11-03 02:05:34,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63143 to 63029. [2022-11-03 02:05:34,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63029 states, 38685 states have (on average 1.3171772004652966) internal successors, (50955), 39878 states have internal predecessors, (50955), 19804 states have call successors, (19804), 4421 states have call predecessors, (19804), 4539 states have return successors, (20488), 19544 states have call predecessors, (20488), 19802 states have call successors, (20488) [2022-11-03 02:05:34,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63029 states to 63029 states and 91247 transitions. [2022-11-03 02:05:35,010 INFO L78 Accepts]: Start accepts. Automaton has 63029 states and 91247 transitions. Word has length 208 [2022-11-03 02:05:35,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:05:35,011 INFO L495 AbstractCegarLoop]: Abstraction has 63029 states and 91247 transitions. [2022-11-03 02:05:35,012 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.363636363636363) internal successors, (92), 8 states have internal predecessors, (92), 2 states have call successors, (31), 2 states have call predecessors, (31), 5 states have return successors, (28), 5 states have call predecessors, (28), 2 states have call successors, (28) [2022-11-03 02:05:35,012 INFO L276 IsEmpty]: Start isEmpty. Operand 63029 states and 91247 transitions. [2022-11-03 02:05:35,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2022-11-03 02:05:35,043 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:05:35,044 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 6, 6, 3, 3, 3, 3, 3, 3, 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] [2022-11-03 02:05:35,092 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4145a0d-f36f-4785-92a7-708e29530719/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-03 02:05:35,257 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4145a0d-f36f-4785-92a7-708e29530719/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-11-03 02:05:35,258 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:05:35,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:05:35,258 INFO L85 PathProgramCache]: Analyzing trace with hash -598153428, now seen corresponding path program 1 times [2022-11-03 02:05:35,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:05:35,258 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [371946660] [2022-11-03 02:05:35,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:05:35,259 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:05:35,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:05:36,521 INFO L134 CoverageAnalysis]: Checked inductivity of 292 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 292 trivial. 0 not checked. [2022-11-03 02:05:36,522 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:05:36,522 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [371946660] [2022-11-03 02:05:36,522 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [371946660] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:05:36,523 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:05:36,523 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:05:36,523 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [67836856] [2022-11-03 02:05:36,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:05:36,525 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:05:36,525 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:05:36,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:05:36,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:05:36,527 INFO L87 Difference]: Start difference. First operand 63029 states and 91247 transitions. Second operand has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 2 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2022-11-03 02:05:38,746 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.22s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:05:41,513 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:05:44,887 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:05:53,273 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:05:56,061 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:05:57,971 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:06:03,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:06:03,118 INFO L93 Difference]: Finished difference Result 126231 states and 183848 transitions. [2022-11-03 02:06:03,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:06:03,119 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 2 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 219 [2022-11-03 02:06:03,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:06:03,739 INFO L225 Difference]: With dead ends: 126231 [2022-11-03 02:06:03,739 INFO L226 Difference]: Without dead ends: 63221 [2022-11-03 02:06:04,023 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 02:06:04,024 INFO L413 NwaCegarLoop]: 4754 mSDtfsCounter, 5 mSDsluCounter, 5361 mSDsCounter, 0 mSdLazyCounter, 1234 mSolverCounterSat, 0 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 9501 SdHoareTripleChecker+Invalid, 1239 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1234 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.9s IncrementalHoareTripleChecker+Time [2022-11-03 02:06:04,024 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 9501 Invalid, 1239 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1234 Invalid, 5 Unknown, 0 Unchecked, 23.9s Time] [2022-11-03 02:06:04,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63221 states. [2022-11-03 02:06:06,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63221 to 63053. [2022-11-03 02:06:06,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63053 states, 38709 states have (on average 1.3169805471595752) internal successors, (50979), 39902 states have internal predecessors, (50979), 19804 states have call successors, (19804), 4421 states have call predecessors, (19804), 4539 states have return successors, (20488), 19544 states have call predecessors, (20488), 19802 states have call successors, (20488) [2022-11-03 02:06:07,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63053 states to 63053 states and 91271 transitions. [2022-11-03 02:06:07,045 INFO L78 Accepts]: Start accepts. Automaton has 63053 states and 91271 transitions. Word has length 219 [2022-11-03 02:06:07,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:06:07,059 INFO L495 AbstractCegarLoop]: Abstraction has 63053 states and 91271 transitions. [2022-11-03 02:06:07,059 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 2 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2022-11-03 02:06:07,059 INFO L276 IsEmpty]: Start isEmpty. Operand 63053 states and 91271 transitions. [2022-11-03 02:06:07,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2022-11-03 02:06:07,103 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:06:07,104 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 7, 7, 3, 3, 3, 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] [2022-11-03 02:06:07,104 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-03 02:06:07,104 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:06:07,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:06:07,104 INFO L85 PathProgramCache]: Analyzing trace with hash 1436520391, now seen corresponding path program 1 times [2022-11-03 02:06:07,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:06:07,104 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2028104171] [2022-11-03 02:06:07,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:06:07,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:06:07,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:06:08,110 INFO L134 CoverageAnalysis]: Checked inductivity of 310 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 310 trivial. 0 not checked. [2022-11-03 02:06:08,110 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:06:08,111 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2028104171] [2022-11-03 02:06:08,111 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2028104171] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:06:08,111 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:06:08,111 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:06:08,114 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1531876326] [2022-11-03 02:06:08,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:06:08,115 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:06:08,116 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:06:08,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:06:08,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:06:08,117 INFO L87 Difference]: Start difference. First operand 63053 states and 91271 transitions. Second operand has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (36), 2 states have call predecessors, (36), 1 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2022-11-03 02:06:10,367 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.25s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:06:13,197 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:06:16,211 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:06:23,004 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:06:24,155 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:06:25,371 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:06:28,665 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:06:34,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:06:34,452 INFO L93 Difference]: Finished difference Result 133655 states and 194921 transitions. [2022-11-03 02:06:34,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:06:34,453 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (36), 2 states have call predecessors, (36), 1 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) Word has length 213 [2022-11-03 02:06:34,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:06:34,835 INFO L225 Difference]: With dead ends: 133655 [2022-11-03 02:06:34,836 INFO L226 Difference]: Without dead ends: 70621 [2022-11-03 02:06:35,066 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 02:06:35,067 INFO L413 NwaCegarLoop]: 5458 mSDtfsCounter, 602 mSDsluCounter, 5474 mSDsCounter, 0 mSdLazyCounter, 1308 mSolverCounterSat, 9 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 784 SdHoareTripleChecker+Valid, 10321 SdHoareTripleChecker+Invalid, 1322 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1308 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.6s IncrementalHoareTripleChecker+Time [2022-11-03 02:06:35,068 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [784 Valid, 10321 Invalid, 1322 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 1308 Invalid, 5 Unknown, 0 Unchecked, 23.6s Time] [2022-11-03 02:06:35,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70621 states. [2022-11-03 02:06:37,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70621 to 63065. [2022-11-03 02:06:37,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63065 states, 38721 states have (on average 1.3168823119237623) internal successors, (50991), 39914 states have internal predecessors, (50991), 19804 states have call successors, (19804), 4421 states have call predecessors, (19804), 4539 states have return successors, (20488), 19544 states have call predecessors, (20488), 19802 states have call successors, (20488) [2022-11-03 02:06:38,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63065 states to 63065 states and 91283 transitions. [2022-11-03 02:06:38,131 INFO L78 Accepts]: Start accepts. Automaton has 63065 states and 91283 transitions. Word has length 213 [2022-11-03 02:06:38,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:06:38,132 INFO L495 AbstractCegarLoop]: Abstraction has 63065 states and 91283 transitions. [2022-11-03 02:06:38,132 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (36), 2 states have call predecessors, (36), 1 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2022-11-03 02:06:38,132 INFO L276 IsEmpty]: Start isEmpty. Operand 63065 states and 91283 transitions. [2022-11-03 02:06:38,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-11-03 02:06:38,172 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:06:38,173 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 6, 6, 3, 3, 3, 3, 3, 3, 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] [2022-11-03 02:06:38,173 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-03 02:06:38,173 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:06:38,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:06:38,174 INFO L85 PathProgramCache]: Analyzing trace with hash 1725664921, now seen corresponding path program 1 times [2022-11-03 02:06:38,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:06:38,174 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1499914048] [2022-11-03 02:06:38,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:06:38,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:06:38,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:06:39,480 INFO L134 CoverageAnalysis]: Checked inductivity of 292 backedges. 14 proven. 11 refuted. 0 times theorem prover too weak. 267 trivial. 0 not checked. [2022-11-03 02:06:39,480 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:06:39,480 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1499914048] [2022-11-03 02:06:39,481 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1499914048] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:06:39,481 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1167570508] [2022-11-03 02:06:39,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:06:39,481 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:06:39,481 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4145a0d-f36f-4785-92a7-708e29530719/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:06:39,494 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4145a0d-f36f-4785-92a7-708e29530719/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:06:39,514 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4145a0d-f36f-4785-92a7-708e29530719/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-03 02:06:42,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:06:42,476 INFO L263 TraceCheckSpWp]: Trace formula consists of 8912 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-03 02:06:42,485 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:06:42,562 INFO L134 CoverageAnalysis]: Checked inductivity of 292 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 292 trivial. 0 not checked. [2022-11-03 02:06:42,563 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:06:42,563 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1167570508] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:06:42,563 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-03 02:06:42,563 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-11-03 02:06:42,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [914676337] [2022-11-03 02:06:42,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:06:42,564 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 02:06:42,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:06:42,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 02:06:42,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-03 02:06:42,565 INFO L87 Difference]: Start difference. First operand 63065 states and 91283 transitions. Second operand has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 2 states have call successors, (35), 2 states have call predecessors, (35), 3 states have return successors, (32), 3 states have call predecessors, (32), 2 states have call successors, (32) [2022-11-03 02:06:44,732 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:06:47,958 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:06:50,634 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:06:52,663 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:06:55,482 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:07:03,367 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:07:07,047 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:07:08,383 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:07:10,426 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:07:12,494 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:07:25,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:07:25,205 INFO L93 Difference]: Finished difference Result 126739 states and 186575 transitions. [2022-11-03 02:07:25,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-03 02:07:25,207 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 2 states have call successors, (35), 2 states have call predecessors, (35), 3 states have return successors, (32), 3 states have call predecessors, (32), 2 states have call successors, (32) Word has length 227 [2022-11-03 02:07:25,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:07:25,572 INFO L225 Difference]: With dead ends: 126739 [2022-11-03 02:07:25,572 INFO L226 Difference]: Without dead ends: 63693 [2022-11-03 02:07:26,072 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 231 GetRequests, 225 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-11-03 02:07:26,073 INFO L413 NwaCegarLoop]: 4780 mSDtfsCounter, 5 mSDsluCounter, 16164 mSDsCounter, 0 mSdLazyCounter, 2474 mSolverCounterSat, 0 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 37.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 19100 SdHoareTripleChecker+Invalid, 2482 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2474 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 40.0s IncrementalHoareTripleChecker+Time [2022-11-03 02:07:26,073 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 19100 Invalid, 2482 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2474 Invalid, 8 Unknown, 0 Unchecked, 40.0s Time] [2022-11-03 02:07:26,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63693 states. [2022-11-03 02:07:28,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63693 to 63229. [2022-11-03 02:07:28,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63229 states, 38861 states have (on average 1.3157407169141297) internal successors, (51131), 40020 states have internal predecessors, (51131), 19804 states have call successors, (19804), 4421 states have call predecessors, (19804), 4563 states have return successors, (20570), 19602 states have call predecessors, (20570), 19802 states have call successors, (20570) [2022-11-03 02:07:28,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63229 states to 63229 states and 91505 transitions. [2022-11-03 02:07:28,806 INFO L78 Accepts]: Start accepts. Automaton has 63229 states and 91505 transitions. Word has length 227 [2022-11-03 02:07:28,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:07:28,806 INFO L495 AbstractCegarLoop]: Abstraction has 63229 states and 91505 transitions. [2022-11-03 02:07:28,807 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 2 states have call successors, (35), 2 states have call predecessors, (35), 3 states have return successors, (32), 3 states have call predecessors, (32), 2 states have call successors, (32) [2022-11-03 02:07:28,807 INFO L276 IsEmpty]: Start isEmpty. Operand 63229 states and 91505 transitions. [2022-11-03 02:07:28,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2022-11-03 02:07:28,846 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:07:28,846 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 6, 6, 3, 3, 3, 3, 3, 3, 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] [2022-11-03 02:07:28,887 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4145a0d-f36f-4785-92a7-708e29530719/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-03 02:07:29,046 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4145a0d-f36f-4785-92a7-708e29530719/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-11-03 02:07:29,047 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:07:29,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:07:29,047 INFO L85 PathProgramCache]: Analyzing trace with hash -76636266, now seen corresponding path program 1 times [2022-11-03 02:07:29,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:07:29,048 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [145964289] [2022-11-03 02:07:29,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:07:29,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:07:29,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:07:30,412 INFO L134 CoverageAnalysis]: Checked inductivity of 300 backedges. 14 proven. 11 refuted. 0 times theorem prover too weak. 275 trivial. 0 not checked. [2022-11-03 02:07:30,413 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:07:30,413 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [145964289] [2022-11-03 02:07:30,413 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [145964289] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:07:30,413 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1840937216] [2022-11-03 02:07:30,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:07:30,414 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:07:30,414 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4145a0d-f36f-4785-92a7-708e29530719/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:07:30,419 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4145a0d-f36f-4785-92a7-708e29530719/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:07:30,436 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4145a0d-f36f-4785-92a7-708e29530719/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-03 02:07:33,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:07:33,225 INFO L263 TraceCheckSpWp]: Trace formula consists of 8974 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-03 02:07:33,231 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:07:33,433 INFO L134 CoverageAnalysis]: Checked inductivity of 300 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 292 trivial. 0 not checked. [2022-11-03 02:07:33,433 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:07:33,433 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1840937216] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:07:33,433 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-03 02:07:33,433 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [4] total 9 [2022-11-03 02:07:33,433 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1383026842] [2022-11-03 02:07:33,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:07:33,434 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-03 02:07:33,434 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:07:33,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-03 02:07:33,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2022-11-03 02:07:33,435 INFO L87 Difference]: Start difference. First operand 63229 states and 91505 transitions. Second operand has 7 states, 6 states have (on average 17.166666666666668) internal successors, (103), 7 states have internal predecessors, (103), 4 states have call successors, (38), 2 states have call predecessors, (38), 4 states have return successors, (35), 4 states have call predecessors, (35), 4 states have call successors, (35) [2022-11-03 02:07:35,601 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:07:39,499 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.73s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:07:41,545 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:07:43,302 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.76s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:07:45,340 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:07:47,858 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:07:53,660 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:07:55,700 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:07:57,732 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:07:58,888 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:08:00,914 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:08:12,918 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.77s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:08:14,210 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:08:15,842 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.63s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:08:16,987 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:08:19,961 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:08:22,015 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:08:33,617 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:08:40,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:08:40,513 INFO L93 Difference]: Finished difference Result 126871 states and 185713 transitions. [2022-11-03 02:08:40,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-03 02:08:40,515 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 17.166666666666668) internal successors, (103), 7 states have internal predecessors, (103), 4 states have call successors, (38), 2 states have call predecessors, (38), 4 states have return successors, (35), 4 states have call predecessors, (35), 4 states have call successors, (35) Word has length 233 [2022-11-03 02:08:40,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:08:41,056 INFO L225 Difference]: With dead ends: 126871 [2022-11-03 02:08:41,057 INFO L226 Difference]: Without dead ends: 63661 [2022-11-03 02:08:41,327 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 239 GetRequests, 229 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2022-11-03 02:08:41,328 INFO L413 NwaCegarLoop]: 4722 mSDtfsCounter, 38 mSDsluCounter, 26586 mSDsCounter, 0 mSdLazyCounter, 3929 mSolverCounterSat, 37 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 61.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 28237 SdHoareTripleChecker+Invalid, 3976 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 3929 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 64.3s IncrementalHoareTripleChecker+Time [2022-11-03 02:08:41,328 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 28237 Invalid, 3976 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [37 Valid, 3929 Invalid, 10 Unknown, 0 Unchecked, 64.3s Time] [2022-11-03 02:08:41,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63661 states. [2022-11-03 02:08:43,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63661 to 63613. [2022-11-03 02:08:43,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63613 states, 39101 states have (on average 1.315030306130278) internal successors, (51419), 40260 states have internal predecessors, (51419), 19900 states have call successors, (19900), 4445 states have call predecessors, (19900), 4611 states have return successors, (20708), 19722 states have call predecessors, (20708), 19898 states have call successors, (20708) [2022-11-03 02:08:43,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63613 states to 63613 states and 92027 transitions. [2022-11-03 02:08:43,970 INFO L78 Accepts]: Start accepts. Automaton has 63613 states and 92027 transitions. Word has length 233 [2022-11-03 02:08:43,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:08:43,970 INFO L495 AbstractCegarLoop]: Abstraction has 63613 states and 92027 transitions. [2022-11-03 02:08:43,970 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 17.166666666666668) internal successors, (103), 7 states have internal predecessors, (103), 4 states have call successors, (38), 2 states have call predecessors, (38), 4 states have return successors, (35), 4 states have call predecessors, (35), 4 states have call successors, (35) [2022-11-03 02:08:43,970 INFO L276 IsEmpty]: Start isEmpty. Operand 63613 states and 92027 transitions. [2022-11-03 02:08:44,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2022-11-03 02:08:44,008 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:08:44,008 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 6, 6, 3, 3, 3, 3, 3, 3, 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] [2022-11-03 02:08:44,049 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4145a0d-f36f-4785-92a7-708e29530719/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-03 02:08:44,209 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4145a0d-f36f-4785-92a7-708e29530719/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-11-03 02:08:44,209 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:08:44,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:08:44,210 INFO L85 PathProgramCache]: Analyzing trace with hash 2039072415, now seen corresponding path program 1 times [2022-11-03 02:08:44,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:08:44,210 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1862502657] [2022-11-03 02:08:44,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:08:44,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:08:44,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:08:45,655 INFO L134 CoverageAnalysis]: Checked inductivity of 300 backedges. 14 proven. 11 refuted. 0 times theorem prover too weak. 275 trivial. 0 not checked. [2022-11-03 02:08:45,655 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:08:45,655 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1862502657] [2022-11-03 02:08:45,656 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1862502657] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:08:45,656 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1298860567] [2022-11-03 02:08:45,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:08:45,656 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:08:45,656 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4145a0d-f36f-4785-92a7-708e29530719/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:08:45,658 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4145a0d-f36f-4785-92a7-708e29530719/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:08:45,668 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4145a0d-f36f-4785-92a7-708e29530719/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-03 02:08:48,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:08:48,466 INFO L263 TraceCheckSpWp]: Trace formula consists of 8976 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-03 02:08:48,471 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:08:48,679 INFO L134 CoverageAnalysis]: Checked inductivity of 300 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 292 trivial. 0 not checked. [2022-11-03 02:08:48,679 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:08:48,680 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1298860567] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:08:48,680 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-03 02:08:48,680 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [4] total 9 [2022-11-03 02:08:48,681 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2138482966] [2022-11-03 02:08:48,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:08:48,681 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-03 02:08:48,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:08:48,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-03 02:08:48,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2022-11-03 02:08:48,683 INFO L87 Difference]: Start difference. First operand 63613 states and 92027 transitions. Second operand has 7 states, 6 states have (on average 17.333333333333332) internal successors, (104), 7 states have internal predecessors, (104), 4 states have call successors, (38), 2 states have call predecessors, (38), 4 states have return successors, (35), 4 states have call predecessors, (35), 4 states have call successors, (35) [2022-11-03 02:08:50,834 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:08:54,705 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:09:00,003 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:09:06,261 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:09:08,866 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:09:13,299 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:09:15,148 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:09:18,864 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:09:19,880 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:09:23,471 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.71s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:09:25,117 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.65s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:09:43,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:09:43,819 INFO L93 Difference]: Finished difference Result 127639 states and 186609 transitions. [2022-11-03 02:09:43,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-03 02:09:43,820 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 17.333333333333332) internal successors, (104), 7 states have internal predecessors, (104), 4 states have call successors, (38), 2 states have call predecessors, (38), 4 states have return successors, (35), 4 states have call predecessors, (35), 4 states have call successors, (35) Word has length 234 [2022-11-03 02:09:43,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:09:44,361 INFO L225 Difference]: With dead ends: 127639 [2022-11-03 02:09:44,362 INFO L226 Difference]: Without dead ends: 64045 [2022-11-03 02:09:44,609 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 240 GetRequests, 230 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2022-11-03 02:09:44,610 INFO L413 NwaCegarLoop]: 4719 mSDtfsCounter, 37 mSDsluCounter, 26575 mSDsCounter, 0 mSdLazyCounter, 3923 mSolverCounterSat, 39 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 49.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 28228 SdHoareTripleChecker+Invalid, 3967 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 3923 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 52.5s IncrementalHoareTripleChecker+Time [2022-11-03 02:09:44,611 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 28228 Invalid, 3967 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [39 Valid, 3923 Invalid, 5 Unknown, 0 Unchecked, 52.5s Time] [2022-11-03 02:09:44,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64045 states.