./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--atheros--atl1e--atl1e.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_781baa4f-f6d4-4005-a4d1-0ffe212348cb/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_781baa4f-f6d4-4005-a4d1-0ffe212348cb/bin/utaipan-I9t0OCRTmS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_781baa4f-f6d4-4005-a4d1-0ffe212348cb/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_781baa4f-f6d4-4005-a4d1-0ffe212348cb/bin/utaipan-I9t0OCRTmS/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--atheros--atl1e--atl1e.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_781baa4f-f6d4-4005-a4d1-0ffe212348cb/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_781baa4f-f6d4-4005-a4d1-0ffe212348cb/bin/utaipan-I9t0OCRTmS --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 7e5652ce767ff2e1bcbd3f583f8e33ee2c54a0e67349cc7d1c1f8d74e875d01c --- 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-8393723 [2022-11-19 07:51:33,792 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 07:51:33,794 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 07:51:33,811 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 07:51:33,812 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 07:51:33,813 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 07:51:33,814 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 07:51:33,815 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 07:51:33,817 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 07:51:33,818 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 07:51:33,819 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 07:51:33,820 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 07:51:33,821 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 07:51:33,822 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 07:51:33,823 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 07:51:33,824 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 07:51:33,825 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 07:51:33,826 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 07:51:33,828 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 07:51:33,830 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 07:51:33,831 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 07:51:33,833 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 07:51:33,834 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 07:51:33,835 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 07:51:33,838 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 07:51:33,839 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 07:51:33,839 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 07:51:33,840 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 07:51:33,841 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 07:51:33,842 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 07:51:33,842 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 07:51:33,843 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 07:51:33,844 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 07:51:33,845 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 07:51:33,846 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 07:51:33,847 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 07:51:33,847 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 07:51:33,848 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 07:51:33,848 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 07:51:33,849 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 07:51:33,850 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 07:51:33,863 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_781baa4f-f6d4-4005-a4d1-0ffe212348cb/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-19 07:51:33,888 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 07:51:33,891 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 07:51:33,892 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 07:51:33,892 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 07:51:33,893 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 07:51:33,893 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 07:51:33,894 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 07:51:33,894 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 07:51:33,894 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 07:51:33,895 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-19 07:51:33,896 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 07:51:33,896 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 07:51:33,896 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-19 07:51:33,896 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-19 07:51:33,897 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 07:51:33,897 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-19 07:51:33,897 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-19 07:51:33,897 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-19 07:51:33,898 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 07:51:33,898 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-19 07:51:33,899 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 07:51:33,899 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 07:51:33,899 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 07:51:33,900 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 07:51:33,900 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 07:51:33,900 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 07:51:33,900 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 07:51:33,901 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 07:51:33,901 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 07:51:33,901 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:51:33,902 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 07:51:33,902 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-19 07:51:33,902 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 07:51:33,903 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 07:51:33,903 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-19 07:51:33,903 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-19 07:51:33,903 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 07:51:33,904 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 07:51:33,904 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_781baa4f-f6d4-4005-a4d1-0ffe212348cb/bin/utaipan-I9t0OCRTmS/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_781baa4f-f6d4-4005-a4d1-0ffe212348cb/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7e5652ce767ff2e1bcbd3f583f8e33ee2c54a0e67349cc7d1c1f8d74e875d01c [2022-11-19 07:51:34,226 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 07:51:34,259 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 07:51:34,262 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 07:51:34,263 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 07:51:34,264 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 07:51:34,265 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_781baa4f-f6d4-4005-a4d1-0ffe212348cb/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--atheros--atl1e--atl1e.ko-entry_point.cil.out.i [2022-11-19 07:51:34,349 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_781baa4f-f6d4-4005-a4d1-0ffe212348cb/bin/utaipan-I9t0OCRTmS/data/25232e6bb/9a142f799eb04bb29e72f9c022c81e44/FLAG732be2a82 [2022-11-19 07:51:35,427 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 07:51:35,428 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_781baa4f-f6d4-4005-a4d1-0ffe212348cb/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--atheros--atl1e--atl1e.ko-entry_point.cil.out.i [2022-11-19 07:51:35,489 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_781baa4f-f6d4-4005-a4d1-0ffe212348cb/bin/utaipan-I9t0OCRTmS/data/25232e6bb/9a142f799eb04bb29e72f9c022c81e44/FLAG732be2a82 [2022-11-19 07:51:35,726 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_781baa4f-f6d4-4005-a4d1-0ffe212348cb/bin/utaipan-I9t0OCRTmS/data/25232e6bb/9a142f799eb04bb29e72f9c022c81e44 [2022-11-19 07:51:35,730 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 07:51:35,734 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 07:51:35,736 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 07:51:35,736 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 07:51:35,739 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 07:51:35,741 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:51:35" (1/1) ... [2022-11-19 07:51:35,742 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@34dc0d63 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:51:35, skipping insertion in model container [2022-11-19 07:51:35,743 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:51:35" (1/1) ... [2022-11-19 07:51:35,751 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 07:51:35,953 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 07:51:39,672 WARN L234 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_781baa4f-f6d4-4005-a4d1-0ffe212348cb/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--atheros--atl1e--atl1e.ko-entry_point.cil.out.i[418024,418037] [2022-11-19 07:51:39,741 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:51:39,788 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 07:51:40,312 WARN L234 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_781baa4f-f6d4-4005-a4d1-0ffe212348cb/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--atheros--atl1e--atl1e.ko-entry_point.cil.out.i[418024,418037] [2022-11-19 07:51:40,321 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:51:40,670 INFO L208 MainTranslator]: Completed translation [2022-11-19 07:51:40,670 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:51:40 WrapperNode [2022-11-19 07:51:40,670 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 07:51:40,671 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 07:51:40,672 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 07:51:40,672 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 07:51:40,679 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:51:40" (1/1) ... [2022-11-19 07:51:40,835 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:51:40" (1/1) ... [2022-11-19 07:51:41,104 INFO L138 Inliner]: procedures = 464, calls = 3161, calls flagged for inlining = 208, calls inlined = 193, statements flattened = 7704 [2022-11-19 07:51:41,107 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 07:51:41,107 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 07:51:41,107 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 07:51:41,107 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 07:51:41,119 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:51:40" (1/1) ... [2022-11-19 07:51:41,119 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:51:40" (1/1) ... [2022-11-19 07:51:41,201 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:51:40" (1/1) ... [2022-11-19 07:51:41,202 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:51:40" (1/1) ... [2022-11-19 07:51:41,482 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:51:40" (1/1) ... [2022-11-19 07:51:41,522 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:51:40" (1/1) ... [2022-11-19 07:51:41,575 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:51:40" (1/1) ... [2022-11-19 07:51:41,608 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:51:40" (1/1) ... [2022-11-19 07:51:41,677 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 07:51:41,680 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 07:51:41,680 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 07:51:41,680 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 07:51:41,681 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:51:40" (1/1) ... [2022-11-19 07:51:41,692 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:51:41,707 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_781baa4f-f6d4-4005-a4d1-0ffe212348cb/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:51:41,720 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_781baa4f-f6d4-4005-a4d1-0ffe212348cb/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 07:51:41,743 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_781baa4f-f6d4-4005-a4d1-0ffe212348cb/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 07:51:41,760 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2022-11-19 07:51:41,760 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2022-11-19 07:51:41,760 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-11-19 07:51:41,760 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-11-19 07:51:41,760 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_read_phy_reg [2022-11-19 07:51:41,761 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_read_phy_reg [2022-11-19 07:51:41,761 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-19 07:51:41,761 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-19 07:51:41,761 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_force_ps [2022-11-19 07:51:41,761 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_force_ps [2022-11-19 07:51:41,761 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_page [2022-11-19 07:51:41,761 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_page [2022-11-19 07:51:41,762 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-11-19 07:51:41,762 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-11-19 07:51:41,762 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2022-11-19 07:51:41,762 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2022-11-19 07:51:41,762 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-19 07:51:41,762 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-19 07:51:41,762 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_del_timer [2022-11-19 07:51:41,763 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_del_timer [2022-11-19 07:51:41,763 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_word [2022-11-19 07:51:41,763 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_word [2022-11-19 07:51:41,763 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_io_error_detected [2022-11-19 07:51:41,763 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_io_error_detected [2022-11-19 07:51:41,763 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_change_mtu [2022-11-19 07:51:41,763 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_change_mtu [2022-11-19 07:51:41,763 INFO L130 BoogieDeclarations]: Found specification of procedure activate_work_3 [2022-11-19 07:51:41,764 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_work_3 [2022-11-19 07:51:41,764 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2022-11-19 07:51:41,764 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2022-11-19 07:51:41,764 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-11-19 07:51:41,764 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-11-19 07:51:41,764 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-11-19 07:51:41,764 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-11-19 07:51:41,764 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-19 07:51:41,765 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-19 07:51:41,765 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_irq_disable [2022-11-19 07:51:41,765 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_irq_disable [2022-11-19 07:51:41,765 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_restart_autoneg [2022-11-19 07:51:41,765 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_restart_autoneg [2022-11-19 07:51:41,765 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-11-19 07:51:41,765 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-11-19 07:51:41,766 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_get_tpd [2022-11-19 07:51:41,766 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_get_tpd [2022-11-19 07:51:41,766 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-11-19 07:51:41,766 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-11-19 07:51:41,766 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2022-11-19 07:51:41,766 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2022-11-19 07:51:41,766 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-11-19 07:51:41,766 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-11-19 07:51:41,767 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-19 07:51:41,767 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-19 07:51:41,767 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_free_irq [2022-11-19 07:51:41,767 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_free_irq [2022-11-19 07:51:41,767 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2022-11-19 07:51:41,767 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2022-11-19 07:51:41,767 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_attach [2022-11-19 07:51:41,767 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_attach [2022-11-19 07:51:41,768 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-19 07:51:41,768 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_word [2022-11-19 07:51:41,768 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_word [2022-11-19 07:51:41,768 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_shutdown [2022-11-19 07:51:41,768 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_shutdown [2022-11-19 07:51:41,768 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_work_sync [2022-11-19 07:51:41,768 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_work_sync [2022-11-19 07:51:41,768 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_check_eeprom_exist [2022-11-19 07:51:41,769 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_check_eeprom_exist [2022-11-19 07:51:41,769 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_detach [2022-11-19 07:51:41,769 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_detach [2022-11-19 07:51:41,769 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-19 07:51:41,769 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-19 07:51:41,769 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-11-19 07:51:41,769 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-11-19 07:51:41,769 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-19 07:51:41,770 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_hw_set_mac_addr [2022-11-19 07:51:41,770 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_hw_set_mac_addr [2022-11-19 07:51:41,770 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-11-19 07:51:41,770 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-11-19 07:51:41,770 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-11-19 07:51:41,770 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-11-19 07:51:41,770 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_get_tx_buffer [2022-11-19 07:51:41,771 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_get_tx_buffer [2022-11-19 07:51:41,771 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-19 07:51:41,771 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_reset_task [2022-11-19 07:51:41,771 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_reset_task [2022-11-19 07:51:41,771 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-19 07:51:41,771 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-11-19 07:51:41,771 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-11-19 07:51:41,771 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headroom [2022-11-19 07:51:41,771 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headroom [2022-11-19 07:51:41,772 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-19 07:51:41,772 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-19 07:51:41,772 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_header [2022-11-19 07:51:41,772 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_header [2022-11-19 07:51:41,772 INFO L130 BoogieDeclarations]: Found specification of procedure pci_choose_state [2022-11-19 07:51:41,772 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_choose_state [2022-11-19 07:51:41,772 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-11-19 07:51:41,772 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-11-19 07:51:41,773 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_irq_reset [2022-11-19 07:51:41,773 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_irq_reset [2022-11-19 07:51:41,773 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2022-11-19 07:51:41,773 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2022-11-19 07:51:41,773 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-11-19 07:51:41,773 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-11-19 07:51:41,773 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_down [2022-11-19 07:51:41,773 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_down [2022-11-19 07:51:41,774 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-11-19 07:51:41,774 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-11-19 07:51:41,774 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-19 07:51:41,774 INFO L130 BoogieDeclarations]: Found specification of procedure __atl1e_vlan_mode [2022-11-19 07:51:41,774 INFO L138 BoogieDeclarations]: Found implementation of procedure __atl1e_vlan_mode [2022-11-19 07:51:41,774 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-19 07:51:41,774 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_ether_addr [2022-11-19 07:51:41,774 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_ether_addr [2022-11-19 07:51:41,775 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_fix_features [2022-11-19 07:51:41,775 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_fix_features [2022-11-19 07:51:41,775 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-19 07:51:41,775 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-19 07:51:41,775 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-19 07:51:41,775 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-19 07:51:41,775 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headlen [2022-11-19 07:51:41,775 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headlen [2022-11-19 07:51:41,776 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_set_multi [2022-11-19 07:51:41,776 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_set_multi [2022-11-19 07:51:41,776 INFO L130 BoogieDeclarations]: Found specification of procedure skb_is_gso [2022-11-19 07:51:41,776 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_is_gso [2022-11-19 07:51:41,776 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_remove [2022-11-19 07:51:41,776 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_remove [2022-11-19 07:51:41,776 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2022-11-19 07:51:41,776 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2022-11-19 07:51:41,776 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_map_page [2022-11-19 07:51:41,777 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_map_page [2022-11-19 07:51:41,777 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-19 07:51:41,777 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-19 07:51:41,777 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_free_ring_resources [2022-11-19 07:51:41,777 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_free_ring_resources [2022-11-19 07:51:41,777 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_get_stats [2022-11-19 07:51:41,777 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_get_stats [2022-11-19 07:51:41,777 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_size [2022-11-19 07:51:41,778 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_size [2022-11-19 07:51:41,778 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2022-11-19 07:51:41,778 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2022-11-19 07:51:41,778 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-11-19 07:51:41,778 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-11-19 07:51:41,778 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_validate_option [2022-11-19 07:51:41,778 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_validate_option [2022-11-19 07:51:41,778 INFO L130 BoogieDeclarations]: Found specification of procedure writeb [2022-11-19 07:51:41,779 INFO L138 BoogieDeclarations]: Found implementation of procedure writeb [2022-11-19 07:51:41,779 INFO L130 BoogieDeclarations]: Found specification of procedure writew [2022-11-19 07:51:41,779 INFO L138 BoogieDeclarations]: Found implementation of procedure writew [2022-11-19 07:51:41,779 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 07:51:41,779 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 07:51:41,779 INFO L130 BoogieDeclarations]: Found specification of procedure tcp_hdr [2022-11-19 07:51:41,779 INFO L138 BoogieDeclarations]: Found implementation of procedure tcp_hdr [2022-11-19 07:51:41,779 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2022-11-19 07:51:41,779 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2022-11-19 07:51:41,779 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-19 07:51:41,780 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-19 07:51:41,780 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-19 07:51:41,780 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-19 07:51:41,780 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2022-11-19 07:51:41,780 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2022-11-19 07:51:41,780 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2022-11-19 07:51:41,780 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2022-11-19 07:51:41,780 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2022-11-19 07:51:41,781 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2022-11-19 07:51:41,781 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_clean_tx_ring [2022-11-19 07:51:41,781 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_clean_tx_ring [2022-11-19 07:51:41,781 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_release_7 [2022-11-19 07:51:41,781 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_release_7 [2022-11-19 07:51:41,781 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-19 07:51:41,781 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-19 07:51:41,781 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2022-11-19 07:51:41,781 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2022-11-19 07:51:41,782 INFO L130 BoogieDeclarations]: Found specification of procedure ip_hdr [2022-11-19 07:51:41,782 INFO L138 BoogieDeclarations]: Found implementation of procedure ip_hdr [2022-11-19 07:51:41,782 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed_set [2022-11-19 07:51:41,782 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed_set [2022-11-19 07:51:41,782 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_set_mac_addr [2022-11-19 07:51:41,782 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_set_mac_addr [2022-11-19 07:51:41,782 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2022-11-19 07:51:41,782 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2022-11-19 07:51:41,783 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-19 07:51:41,783 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-19 07:51:41,783 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_resume [2022-11-19 07:51:41,783 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_resume [2022-11-19 07:51:41,783 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-19 07:51:41,783 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-19 07:51:41,783 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-11-19 07:51:41,783 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-11-19 07:51:41,784 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_unmap_page [2022-11-19 07:51:41,784 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_unmap_page [2022-11-19 07:51:41,784 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_4 [2022-11-19 07:51:41,784 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_4 [2022-11-19 07:51:41,784 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-19 07:51:41,784 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-19 07:51:41,784 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-19 07:51:41,784 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_master [2022-11-19 07:51:41,784 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_master [2022-11-19 07:51:41,785 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-11-19 07:51:41,785 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-11-19 07:51:41,785 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_tx_timeout [2022-11-19 07:51:41,785 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_tx_timeout [2022-11-19 07:51:41,785 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-19 07:51:41,785 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_vlan_mode [2022-11-19 07:51:41,785 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_vlan_mode [2022-11-19 07:51:41,785 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_write_phy_reg [2022-11-19 07:51:41,786 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_write_phy_reg [2022-11-19 07:51:41,786 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2022-11-19 07:51:41,786 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2022-11-19 07:51:41,786 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_wake [2022-11-19 07:51:41,786 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_wake [2022-11-19 07:51:41,786 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_up [2022-11-19 07:51:41,786 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_up [2022-11-19 07:51:41,786 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-19 07:51:41,787 INFO L130 BoogieDeclarations]: Found specification of procedure disable_work_3 [2022-11-19 07:51:41,787 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_work_3 [2022-11-19 07:51:41,787 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_phy_commit [2022-11-19 07:51:41,787 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_phy_commit [2022-11-19 07:51:41,787 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-11-19 07:51:41,787 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-11-19 07:51:41,787 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work_on [2022-11-19 07:51:41,787 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work_on [2022-11-19 07:51:41,787 INFO L130 BoogieDeclarations]: Found specification of procedure dma_mapping_error [2022-11-19 07:51:41,788 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_mapping_error [2022-11-19 07:51:41,788 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2022-11-19 07:51:41,788 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2022-11-19 07:51:41,788 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-11-19 07:51:41,788 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-11-19 07:51:41,788 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2022-11-19 07:51:41,788 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2022-11-19 07:51:41,788 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-11-19 07:51:41,788 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-11-19 07:51:41,789 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_ioctl [2022-11-19 07:51:41,789 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_ioctl [2022-11-19 07:51:41,789 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_link_chg_task [2022-11-19 07:51:41,789 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_link_chg_task [2022-11-19 07:51:41,789 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_reinit_locked [2022-11-19 07:51:41,789 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_reinit_locked [2022-11-19 07:51:41,789 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_phy_init [2022-11-19 07:51:41,789 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_phy_init [2022-11-19 07:51:41,789 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_intr [2022-11-19 07:51:41,790 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_intr [2022-11-19 07:51:41,790 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-11-19 07:51:41,790 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-11-19 07:51:41,790 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_offset [2022-11-19 07:51:41,790 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_offset [2022-11-19 07:51:41,790 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-11-19 07:51:41,790 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-11-19 07:51:41,790 INFO L130 BoogieDeclarations]: Found specification of procedure activate_suitable_timer_4 [2022-11-19 07:51:41,790 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_suitable_timer_4 [2022-11-19 07:51:41,791 INFO L130 BoogieDeclarations]: Found specification of procedure skb_network_header [2022-11-19 07:51:41,791 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_network_header [2022-11-19 07:51:41,791 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_irq_enable [2022-11-19 07:51:41,791 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_irq_enable [2022-11-19 07:51:41,791 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-19 07:51:41,791 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-19 07:51:41,791 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-19 07:51:41,791 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_io_slot_reset [2022-11-19 07:51:41,791 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_io_slot_reset [2022-11-19 07:51:41,791 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_netpoll [2022-11-19 07:51:41,792 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_netpoll [2022-11-19 07:51:41,792 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-19 07:51:41,792 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-19 07:51:41,792 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_read_eeprom [2022-11-19 07:51:41,792 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_read_eeprom [2022-11-19 07:51:41,792 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_suspend [2022-11-19 07:51:41,792 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_suspend [2022-11-19 07:51:41,792 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2022-11-19 07:51:41,792 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2022-11-19 07:51:41,792 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2022-11-19 07:51:41,793 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2022-11-19 07:51:41,793 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2022-11-19 07:51:41,793 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2022-11-19 07:51:41,793 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_set_features [2022-11-19 07:51:41,793 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_set_features [2022-11-19 07:51:41,793 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2022-11-19 07:51:41,793 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2022-11-19 07:51:41,793 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_request_irq [2022-11-19 07:51:41,793 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_request_irq [2022-11-19 07:51:41,793 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2022-11-19 07:51:41,794 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2022-11-19 07:51:41,794 INFO L130 BoogieDeclarations]: Found specification of procedure tcp_hdrlen [2022-11-19 07:51:41,794 INFO L138 BoogieDeclarations]: Found implementation of procedure tcp_hdrlen [2022-11-19 07:51:41,794 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_resume_early_6 [2022-11-19 07:51:41,794 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_resume_early_6 [2022-11-19 07:51:41,794 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2022-11-19 07:51:41,794 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2022-11-19 07:51:41,795 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2022-11-19 07:51:41,795 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2022-11-19 07:51:41,795 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_get_eeprom_len [2022-11-19 07:51:41,795 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_get_eeprom_len [2022-11-19 07:51:41,795 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2022-11-19 07:51:41,795 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2022-11-19 07:51:41,795 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2022-11-19 07:51:41,795 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2022-11-19 07:51:41,795 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_reset_hw [2022-11-19 07:51:41,796 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_reset_hw [2022-11-19 07:51:41,796 INFO L130 BoogieDeclarations]: Found specification of procedure readw [2022-11-19 07:51:41,796 INFO L138 BoogieDeclarations]: Found implementation of procedure readw [2022-11-19 07:51:41,796 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-11-19 07:51:41,796 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-11-19 07:51:41,796 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2022-11-19 07:51:41,796 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2022-11-19 07:51:41,796 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-19 07:51:41,797 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_page [2022-11-19 07:51:41,797 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_page [2022-11-19 07:51:41,797 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_get_regs_len [2022-11-19 07:51:41,797 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_get_regs_len [2022-11-19 07:51:41,797 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_clean_rx_ring [2022-11-19 07:51:41,797 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_clean_rx_ring [2022-11-19 07:51:43,030 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 07:51:43,035 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 07:51:43,468 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-19 07:51:54,347 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 07:51:57,269 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 07:51:57,269 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-19 07:51:57,277 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:51:57 BoogieIcfgContainer [2022-11-19 07:51:57,277 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 07:51:57,281 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 07:51:57,281 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 07:51:57,285 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 07:51:57,285 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:51:35" (1/3) ... [2022-11-19 07:51:57,286 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7cd2b47e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:51:57, skipping insertion in model container [2022-11-19 07:51:57,286 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:51:40" (2/3) ... [2022-11-19 07:51:57,287 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7cd2b47e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:51:57, skipping insertion in model container [2022-11-19 07:51:57,287 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:51:57" (3/3) ... [2022-11-19 07:51:57,288 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--atheros--atl1e--atl1e.ko-entry_point.cil.out.i [2022-11-19 07:51:57,308 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 07:51:57,309 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-19 07:51:57,401 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 07:51:57,408 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;@42bd065f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 07:51:57,408 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-19 07:51:57,419 INFO L276 IsEmpty]: Start isEmpty. Operand has 2199 states, 1341 states have (on average 1.319910514541387) internal successors, (1770), 1379 states have internal predecessors, (1770), 710 states have call successors, (710), 147 states have call predecessors, (710), 146 states have return successors, (699), 695 states have call predecessors, (699), 699 states have call successors, (699) [2022-11-19 07:51:57,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-11-19 07:51:57,448 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:51:57,449 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:51:57,449 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:51:57,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:51:57,454 INFO L85 PathProgramCache]: Analyzing trace with hash -1951836152, now seen corresponding path program 1 times [2022-11-19 07:51:57,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:51:57,465 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [306624886] [2022-11-19 07:51:57,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:51:57,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:51:58,025 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-19 07:51:58,026 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [958427149] [2022-11-19 07:51:58,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:51:58,026 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:51:58,026 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_781baa4f-f6d4-4005-a4d1-0ffe212348cb/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:51:58,031 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_781baa4f-f6d4-4005-a4d1-0ffe212348cb/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:51:58,043 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_781baa4f-f6d4-4005-a4d1-0ffe212348cb/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-19 07:51:59,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:51:59,718 INFO L263 TraceCheckSpWp]: Trace formula consists of 3278 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-19 07:51:59,733 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:51:59,866 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 165 trivial. 0 not checked. [2022-11-19 07:51:59,867 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 07:51:59,867 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:51:59,867 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [306624886] [2022-11-19 07:51:59,868 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-19 07:51:59,868 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [958427149] [2022-11-19 07:51:59,868 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [958427149] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:51:59,869 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:51:59,869 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:51:59,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1485719983] [2022-11-19 07:51:59,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:51:59,877 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:51:59,878 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:51:59,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:51:59,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:51:59,916 INFO L87 Difference]: Start difference. First operand has 2199 states, 1341 states have (on average 1.319910514541387) internal successors, (1770), 1379 states have internal predecessors, (1770), 710 states have call successors, (710), 147 states have call predecessors, (710), 146 states have return successors, (699), 695 states have call predecessors, (699), 699 states have call successors, (699) Second operand has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-19 07:52:04,031 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 [] [2022-11-19 07:52:06,847 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 [] [2022-11-19 07:52:09,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:52:09,388 INFO L93 Difference]: Finished difference Result 5942 states and 8611 transitions. [2022-11-19 07:52:09,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:52:09,391 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 135 [2022-11-19 07:52:09,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:52:09,451 INFO L225 Difference]: With dead ends: 5942 [2022-11-19 07:52:09,451 INFO L226 Difference]: Without dead ends: 3729 [2022-11-19 07:52:09,464 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:52:09,467 INFO L413 NwaCegarLoop]: 3317 mSDtfsCounter, 2281 mSDsluCounter, 2721 mSDsCounter, 0 mSdLazyCounter, 731 mSolverCounterSat, 40 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2281 SdHoareTripleChecker+Valid, 6038 SdHoareTripleChecker+Invalid, 773 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 731 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.1s IncrementalHoareTripleChecker+Time [2022-11-19 07:52:09,469 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2281 Valid, 6038 Invalid, 773 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [40 Valid, 731 Invalid, 2 Unknown, 0 Unchecked, 9.1s Time] [2022-11-19 07:52:09,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3729 states. [2022-11-19 07:52:09,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3729 to 3711. [2022-11-19 07:52:09,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3711 states, 2297 states have (on average 1.3086634740966478) internal successors, (3006), 2346 states have internal predecessors, (3006), 1162 states have call successors, (1162), 253 states have call predecessors, (1162), 251 states have return successors, (1161), 1146 states have call predecessors, (1161), 1161 states have call successors, (1161) [2022-11-19 07:52:09,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3711 states to 3711 states and 5329 transitions. [2022-11-19 07:52:09,801 INFO L78 Accepts]: Start accepts. Automaton has 3711 states and 5329 transitions. Word has length 135 [2022-11-19 07:52:09,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:52:09,803 INFO L495 AbstractCegarLoop]: Abstraction has 3711 states and 5329 transitions. [2022-11-19 07:52:09,803 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-19 07:52:09,803 INFO L276 IsEmpty]: Start isEmpty. Operand 3711 states and 5329 transitions. [2022-11-19 07:52:09,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2022-11-19 07:52:09,827 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:52:09,828 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:52:09,848 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_781baa4f-f6d4-4005-a4d1-0ffe212348cb/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-19 07:52:10,041 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_781baa4f-f6d4-4005-a4d1-0ffe212348cb/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-11-19 07:52:10,042 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:52:10,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:52:10,042 INFO L85 PathProgramCache]: Analyzing trace with hash 1236722471, now seen corresponding path program 1 times [2022-11-19 07:52:10,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:52:10,043 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1540453227] [2022-11-19 07:52:10,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:52:10,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:52:10,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:52:10,767 INFO L134 CoverageAnalysis]: Checked inductivity of 465 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 465 trivial. 0 not checked. [2022-11-19 07:52:10,768 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:52:10,768 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1540453227] [2022-11-19 07:52:10,769 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1540453227] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:52:10,769 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:52:10,769 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:52:10,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [162954391] [2022-11-19 07:52:10,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:52:10,773 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:52:10,773 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:52:10,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:52:10,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:52:10,774 INFO L87 Difference]: Start difference. First operand 3711 states and 5329 transitions. Second operand has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-19 07:52:14,347 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 [] [2022-11-19 07:52:17,380 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 [] [2022-11-19 07:52:19,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:52:19,549 INFO L93 Difference]: Finished difference Result 10448 states and 14961 transitions. [2022-11-19 07:52:19,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:52:19,550 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 197 [2022-11-19 07:52:19,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:52:19,604 INFO L225 Difference]: With dead ends: 10448 [2022-11-19 07:52:19,605 INFO L226 Difference]: Without dead ends: 6762 [2022-11-19 07:52:19,624 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 [2022-11-19 07:52:19,626 INFO L413 NwaCegarLoop]: 3889 mSDtfsCounter, 2591 mSDsluCounter, 2773 mSDsCounter, 0 mSdLazyCounter, 695 mSolverCounterSat, 2 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2594 SdHoareTripleChecker+Valid, 6662 SdHoareTripleChecker+Invalid, 699 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 695 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.3s IncrementalHoareTripleChecker+Time [2022-11-19 07:52:19,630 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2594 Valid, 6662 Invalid, 699 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 695 Invalid, 2 Unknown, 0 Unchecked, 8.3s Time] [2022-11-19 07:52:19,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6762 states. [2022-11-19 07:52:20,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6762 to 6757. [2022-11-19 07:52:20,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6757 states, 4192 states have (on average 1.3096374045801527) internal successors, (5490), 4287 states have internal predecessors, (5490), 2086 states have call successors, (2086), 482 states have call predecessors, (2086), 478 states have return successors, (2085), 2053 states have call predecessors, (2085), 2085 states have call successors, (2085) [2022-11-19 07:52:20,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6757 states to 6757 states and 9661 transitions. [2022-11-19 07:52:20,077 INFO L78 Accepts]: Start accepts. Automaton has 6757 states and 9661 transitions. Word has length 197 [2022-11-19 07:52:20,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:52:20,080 INFO L495 AbstractCegarLoop]: Abstraction has 6757 states and 9661 transitions. [2022-11-19 07:52:20,080 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-19 07:52:20,080 INFO L276 IsEmpty]: Start isEmpty. Operand 6757 states and 9661 transitions. [2022-11-19 07:52:20,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 279 [2022-11-19 07:52:20,099 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:52:20,099 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 14, 6, 6, 6, 6, 6, 6, 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] [2022-11-19 07:52:20,099 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-19 07:52:20,100 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:52:20,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:52:20,101 INFO L85 PathProgramCache]: Analyzing trace with hash -624002810, now seen corresponding path program 1 times [2022-11-19 07:52:20,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:52:20,102 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [537287684] [2022-11-19 07:52:20,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:52:20,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:52:20,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:52:20,898 INFO L134 CoverageAnalysis]: Checked inductivity of 1024 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1024 trivial. 0 not checked. [2022-11-19 07:52:20,899 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:52:20,899 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [537287684] [2022-11-19 07:52:20,900 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [537287684] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:52:20,901 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:52:20,901 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:52:20,901 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1642098124] [2022-11-19 07:52:20,901 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:52:20,903 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:52:20,903 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:52:20,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:52:20,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:52:20,904 INFO L87 Difference]: Start difference. First operand 6757 states and 9661 transitions. Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 3 states have call successors, (28), 3 states have call predecessors, (28), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-11-19 07:52:24,503 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 [] [2022-11-19 07:52:28,054 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 [] [2022-11-19 07:52:30,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:52:30,032 INFO L93 Difference]: Finished difference Result 12611 states and 18070 transitions. [2022-11-19 07:52:30,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:52:30,034 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 3 states have call successors, (28), 3 states have call predecessors, (28), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 278 [2022-11-19 07:52:30,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:52:30,122 INFO L225 Difference]: With dead ends: 12611 [2022-11-19 07:52:30,123 INFO L226 Difference]: Without dead ends: 12608 [2022-11-19 07:52:30,135 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:52:30,136 INFO L413 NwaCegarLoop]: 3997 mSDtfsCounter, 2526 mSDsluCounter, 2767 mSDsCounter, 0 mSdLazyCounter, 663 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2529 SdHoareTripleChecker+Valid, 6764 SdHoareTripleChecker+Invalid, 666 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 663 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.7s IncrementalHoareTripleChecker+Time [2022-11-19 07:52:30,136 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2529 Valid, 6764 Invalid, 666 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 663 Invalid, 2 Unknown, 0 Unchecked, 8.7s Time] [2022-11-19 07:52:30,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12608 states. [2022-11-19 07:52:30,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12608 to 12532. [2022-11-19 07:52:30,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12532 states, 7833 states have (on average 1.3146942423081833) internal successors, (10298), 7994 states have internal predecessors, (10298), 3802 states have call successors, (3802), 904 states have call predecessors, (3802), 896 states have return successors, (3835), 3749 states have call predecessors, (3835), 3801 states have call successors, (3835) [2022-11-19 07:52:30,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12532 states to 12532 states and 17935 transitions. [2022-11-19 07:52:30,916 INFO L78 Accepts]: Start accepts. Automaton has 12532 states and 17935 transitions. Word has length 278 [2022-11-19 07:52:30,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:52:30,917 INFO L495 AbstractCegarLoop]: Abstraction has 12532 states and 17935 transitions. [2022-11-19 07:52:30,919 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 3 states have call successors, (28), 3 states have call predecessors, (28), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-11-19 07:52:30,919 INFO L276 IsEmpty]: Start isEmpty. Operand 12532 states and 17935 transitions. [2022-11-19 07:52:30,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 289 [2022-11-19 07:52:30,947 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:52:30,947 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 6, 6, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:52:30,947 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-19 07:52:30,948 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:52:30,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:52:30,949 INFO L85 PathProgramCache]: Analyzing trace with hash -1278866400, now seen corresponding path program 1 times [2022-11-19 07:52:30,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:52:30,950 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1091539289] [2022-11-19 07:52:30,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:52:30,950 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:52:31,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:52:31,735 INFO L134 CoverageAnalysis]: Checked inductivity of 477 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 475 trivial. 0 not checked. [2022-11-19 07:52:31,735 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:52:31,735 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1091539289] [2022-11-19 07:52:31,736 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1091539289] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:52:31,736 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:52:31,736 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:52:31,736 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1516173839] [2022-11-19 07:52:31,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:52:31,740 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:52:31,740 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:52:31,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:52:31,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:52:31,741 INFO L87 Difference]: Start difference. First operand 12532 states and 17935 transitions. Second operand has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 2 states have call successors, (37), 2 states have call predecessors, (37), 1 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2022-11-19 07:52:35,958 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 [] [2022-11-19 07:52:38,454 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 [] [2022-11-19 07:52:40,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:52:40,460 INFO L93 Difference]: Finished difference Result 34845 states and 49750 transitions. [2022-11-19 07:52:40,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:52:40,461 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 2 states have call successors, (37), 2 states have call predecessors, (37), 1 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) Word has length 288 [2022-11-19 07:52:40,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:52:40,581 INFO L225 Difference]: With dead ends: 34845 [2022-11-19 07:52:40,582 INFO L226 Difference]: Without dead ends: 22338 [2022-11-19 07:52:40,654 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 [2022-11-19 07:52:40,659 INFO L413 NwaCegarLoop]: 4235 mSDtfsCounter, 2515 mSDsluCounter, 2763 mSDsCounter, 0 mSdLazyCounter, 746 mSolverCounterSat, 2 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2518 SdHoareTripleChecker+Valid, 6998 SdHoareTripleChecker+Invalid, 750 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 746 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.1s IncrementalHoareTripleChecker+Time [2022-11-19 07:52:40,661 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2518 Valid, 6998 Invalid, 750 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 746 Invalid, 2 Unknown, 0 Unchecked, 8.1s Time] [2022-11-19 07:52:40,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22338 states. [2022-11-19 07:52:41,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22338 to 22334. [2022-11-19 07:52:41,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22334 states, 13990 states have (on average 1.313795568263045) internal successors, (18380), 14245 states have internal predecessors, (18380), 6696 states have call successors, (6696), 1659 states have call predecessors, (6696), 1647 states have return successors, (6763), 6621 states have call predecessors, (6763), 6695 states have call successors, (6763) [2022-11-19 07:52:41,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22334 states to 22334 states and 31839 transitions. [2022-11-19 07:52:41,978 INFO L78 Accepts]: Start accepts. Automaton has 22334 states and 31839 transitions. Word has length 288 [2022-11-19 07:52:41,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:52:41,979 INFO L495 AbstractCegarLoop]: Abstraction has 22334 states and 31839 transitions. [2022-11-19 07:52:41,980 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 2 states have call successors, (37), 2 states have call predecessors, (37), 1 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2022-11-19 07:52:41,980 INFO L276 IsEmpty]: Start isEmpty. Operand 22334 states and 31839 transitions. [2022-11-19 07:52:42,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 316 [2022-11-19 07:52:42,030 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:52:42,031 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 6, 6, 6, 6, 6, 6, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:52:42,031 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-19 07:52:42,031 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:52:42,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:52:42,032 INFO L85 PathProgramCache]: Analyzing trace with hash 737647539, now seen corresponding path program 1 times [2022-11-19 07:52:42,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:52:42,032 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2017282260] [2022-11-19 07:52:42,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:52:42,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:52:42,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:52:42,755 INFO L134 CoverageAnalysis]: Checked inductivity of 578 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 567 trivial. 0 not checked. [2022-11-19 07:52:42,756 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:52:42,756 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2017282260] [2022-11-19 07:52:42,756 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2017282260] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:52:42,757 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:52:42,757 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:52:42,759 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [167519697] [2022-11-19 07:52:42,759 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:52:42,760 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:52:42,760 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:52:42,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:52:42,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:52:42,761 INFO L87 Difference]: Start difference. First operand 22334 states and 31839 transitions. Second operand has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 2 states have call successors, (38), 2 states have call predecessors, (38), 1 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2022-11-19 07:52:46,738 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 [] [2022-11-19 07:52:50,171 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 [] [2022-11-19 07:52:52,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:52:52,245 INFO L93 Difference]: Finished difference Result 66788 states and 95220 transitions. [2022-11-19 07:52:52,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:52:52,246 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 2 states have call successors, (38), 2 states have call predecessors, (38), 1 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) Word has length 315 [2022-11-19 07:52:52,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:52:52,476 INFO L225 Difference]: With dead ends: 66788 [2022-11-19 07:52:52,476 INFO L226 Difference]: Without dead ends: 44489 [2022-11-19 07:52:52,762 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 [2022-11-19 07:52:52,763 INFO L413 NwaCegarLoop]: 4027 mSDtfsCounter, 3004 mSDsluCounter, 2787 mSDsCounter, 0 mSdLazyCounter, 668 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3007 SdHoareTripleChecker+Valid, 6814 SdHoareTripleChecker+Invalid, 671 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 668 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.9s IncrementalHoareTripleChecker+Time [2022-11-19 07:52:52,763 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3007 Valid, 6814 Invalid, 671 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 668 Invalid, 2 Unknown, 0 Unchecked, 7.9s Time] [2022-11-19 07:52:52,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44489 states. [2022-11-19 07:52:55,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44489 to 44464. [2022-11-19 07:52:55,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44464 states, 27854 states have (on average 1.3142098082860632) internal successors, (36606), 28377 states have internal predecessors, (36606), 13326 states have call successors, (13326), 3307 states have call predecessors, (13326), 3283 states have return successors, (13461), 13163 states have call predecessors, (13461), 13325 states have call successors, (13461) [2022-11-19 07:52:55,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44464 states to 44464 states and 63393 transitions. [2022-11-19 07:52:55,525 INFO L78 Accepts]: Start accepts. Automaton has 44464 states and 63393 transitions. Word has length 315 [2022-11-19 07:52:55,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:52:55,526 INFO L495 AbstractCegarLoop]: Abstraction has 44464 states and 63393 transitions. [2022-11-19 07:52:55,526 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 2 states have call successors, (38), 2 states have call predecessors, (38), 1 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2022-11-19 07:52:55,526 INFO L276 IsEmpty]: Start isEmpty. Operand 44464 states and 63393 transitions. [2022-11-19 07:52:55,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 370 [2022-11-19 07:52:55,812 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:52:55,812 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 14, 6, 6, 6, 6, 6, 6, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:52:55,812 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-19 07:52:55,813 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:52:55,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:52:55,814 INFO L85 PathProgramCache]: Analyzing trace with hash 408435425, now seen corresponding path program 1 times [2022-11-19 07:52:55,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:52:55,815 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1024729736] [2022-11-19 07:52:55,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:52:55,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:52:56,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:52:57,108 INFO L134 CoverageAnalysis]: Checked inductivity of 1046 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1046 trivial. 0 not checked. [2022-11-19 07:52:57,109 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:52:57,109 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1024729736] [2022-11-19 07:52:57,109 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1024729736] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:52:57,109 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:52:57,110 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:52:57,110 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2097683477] [2022-11-19 07:52:57,110 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:52:57,112 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:52:57,112 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:52:57,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:52:57,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:52:57,113 INFO L87 Difference]: Start difference. First operand 44464 states and 63393 transitions. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 3 states have call successors, (43), 3 states have call predecessors, (43), 1 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) [2022-11-19 07:53:01,915 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 [] [2022-11-19 07:53:04,512 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 [] [2022-11-19 07:53:07,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:53:07,517 INFO L93 Difference]: Finished difference Result 65272 states and 93181 transitions. [2022-11-19 07:53:07,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:53:07,523 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 3 states have call successors, (43), 3 states have call predecessors, (43), 1 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) Word has length 369 [2022-11-19 07:53:07,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:53:07,969 INFO L225 Difference]: With dead ends: 65272 [2022-11-19 07:53:07,970 INFO L226 Difference]: Without dead ends: 65269 [2022-11-19 07:53:08,001 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 [2022-11-19 07:53:08,002 INFO L413 NwaCegarLoop]: 3456 mSDtfsCounter, 2595 mSDsluCounter, 2766 mSDsCounter, 0 mSdLazyCounter, 606 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2598 SdHoareTripleChecker+Valid, 6222 SdHoareTripleChecker+Invalid, 609 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 606 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.9s IncrementalHoareTripleChecker+Time [2022-11-19 07:53:08,003 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2598 Valid, 6222 Invalid, 609 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 606 Invalid, 2 Unknown, 0 Unchecked, 8.9s Time] [2022-11-19 07:53:08,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65269 states. [2022-11-19 07:53:11,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65269 to 64604. [2022-11-19 07:53:11,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64604 states, 40611 states have (on average 1.3164659821230702) internal successors, (53463), 41327 states have internal predecessors, (53463), 19236 states have call successors, (19236), 4792 states have call predecessors, (19236), 4756 states have return successors, (19507), 19028 states have call predecessors, (19507), 19235 states have call successors, (19507) [2022-11-19 07:53:12,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64604 states to 64604 states and 92206 transitions. [2022-11-19 07:53:12,182 INFO L78 Accepts]: Start accepts. Automaton has 64604 states and 92206 transitions. Word has length 369 [2022-11-19 07:53:12,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:53:12,184 INFO L495 AbstractCegarLoop]: Abstraction has 64604 states and 92206 transitions. [2022-11-19 07:53:12,184 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 3 states have call successors, (43), 3 states have call predecessors, (43), 1 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) [2022-11-19 07:53:12,184 INFO L276 IsEmpty]: Start isEmpty. Operand 64604 states and 92206 transitions. [2022-11-19 07:53:12,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 437 [2022-11-19 07:53:12,323 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:53:12,323 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 6, 6, 6, 6, 6, 6, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:53:12,324 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-19 07:53:12,324 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:53:12,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:53:12,325 INFO L85 PathProgramCache]: Analyzing trace with hash 319647984, now seen corresponding path program 1 times [2022-11-19 07:53:12,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:53:12,325 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1650909626] [2022-11-19 07:53:12,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:53:12,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:53:13,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:53:13,325 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:53:13,325 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1650909626] [2022-11-19 07:53:13,325 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-11-19 07:53:13,325 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [728500332] [2022-11-19 07:53:13,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:53:13,326 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:53:13,326 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_781baa4f-f6d4-4005-a4d1-0ffe212348cb/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:53:13,335 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_781baa4f-f6d4-4005-a4d1-0ffe212348cb/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:53:13,364 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_781baa4f-f6d4-4005-a4d1-0ffe212348cb/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-19 07:53:16,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:53:16,399 INFO L263 TraceCheckSpWp]: Trace formula consists of 7255 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-19 07:53:16,425 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:53:16,478 INFO L134 CoverageAnalysis]: Checked inductivity of 629 backedges. 110 proven. 0 refuted. 0 times theorem prover too weak. 519 trivial. 0 not checked. [2022-11-19 07:53:16,479 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 07:53:16,479 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [728500332] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:53:16,479 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:53:16,480 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:53:16,480 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [970962363] [2022-11-19 07:53:16,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:53:16,481 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:53:16,482 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:53:16,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:53:16,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:53:16,483 INFO L87 Difference]: Start difference. First operand 64604 states and 92206 transitions. Second operand has 3 states, 3 states have (on average 60.333333333333336) internal successors, (181), 3 states have internal predecessors, (181), 2 states have call successors, (61), 2 states have call predecessors, (61), 2 states have return successors, (59), 2 states have call predecessors, (59), 2 states have call successors, (59) [2022-11-19 07:53:21,698 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 [] [2022-11-19 07:53:24,734 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 [] [2022-11-19 07:53:27,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:53:27,559 INFO L93 Difference]: Finished difference Result 129557 states and 186244 transitions. [2022-11-19 07:53:27,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:53:27,560 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 60.333333333333336) internal successors, (181), 3 states have internal predecessors, (181), 2 states have call successors, (61), 2 states have call predecessors, (61), 2 states have return successors, (59), 2 states have call predecessors, (59), 2 states have call successors, (59) Word has length 436 [2022-11-19 07:53:27,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:53:27,998 INFO L225 Difference]: With dead ends: 129557 [2022-11-19 07:53:27,998 INFO L226 Difference]: Without dead ends: 64988 [2022-11-19 07:53:28,237 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 435 GetRequests, 434 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:53:28,238 INFO L413 NwaCegarLoop]: 2835 mSDtfsCounter, 11 mSDsluCounter, 2820 mSDsCounter, 0 mSdLazyCounter, 603 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 5655 SdHoareTripleChecker+Invalid, 606 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 603 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.7s IncrementalHoareTripleChecker+Time [2022-11-19 07:53:28,239 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 5655 Invalid, 606 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 603 Invalid, 2 Unknown, 0 Unchecked, 8.7s Time] [2022-11-19 07:53:28,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64988 states. [2022-11-19 07:53:31,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64988 to 64652. [2022-11-19 07:53:31,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64652 states, 40659 states have (on average 1.3160923780712757) internal successors, (53511), 41375 states have internal predecessors, (53511), 19236 states have call successors, (19236), 4792 states have call predecessors, (19236), 4756 states have return successors, (19507), 19028 states have call predecessors, (19507), 19235 states have call successors, (19507) [2022-11-19 07:53:32,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64652 states to 64652 states and 92254 transitions. [2022-11-19 07:53:32,045 INFO L78 Accepts]: Start accepts. Automaton has 64652 states and 92254 transitions. Word has length 436 [2022-11-19 07:53:32,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:53:32,049 INFO L495 AbstractCegarLoop]: Abstraction has 64652 states and 92254 transitions. [2022-11-19 07:53:32,049 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 60.333333333333336) internal successors, (181), 3 states have internal predecessors, (181), 2 states have call successors, (61), 2 states have call predecessors, (61), 2 states have return successors, (59), 2 states have call predecessors, (59), 2 states have call successors, (59) [2022-11-19 07:53:32,050 INFO L276 IsEmpty]: Start isEmpty. Operand 64652 states and 92254 transitions. [2022-11-19 07:53:32,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 442 [2022-11-19 07:53:32,198 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:53:32,199 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 6, 6, 6, 6, 6, 6, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:53:32,232 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_781baa4f-f6d4-4005-a4d1-0ffe212348cb/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-19 07:53:32,415 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_781baa4f-f6d4-4005-a4d1-0ffe212348cb/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-11-19 07:53:32,416 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:53:32,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:53:32,417 INFO L85 PathProgramCache]: Analyzing trace with hash -1559701092, now seen corresponding path program 1 times [2022-11-19 07:53:32,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:53:32,417 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [556556696] [2022-11-19 07:53:32,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:53:32,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:53:32,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:53:33,094 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:53:33,094 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [556556696] [2022-11-19 07:53:33,095 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-11-19 07:53:33,095 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [251688023] [2022-11-19 07:53:33,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:53:33,095 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:53:33,096 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_781baa4f-f6d4-4005-a4d1-0ffe212348cb/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:53:33,097 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_781baa4f-f6d4-4005-a4d1-0ffe212348cb/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:53:33,104 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_781baa4f-f6d4-4005-a4d1-0ffe212348cb/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-19 07:53:36,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:53:36,186 INFO L263 TraceCheckSpWp]: Trace formula consists of 7277 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-19 07:53:36,200 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:53:36,361 INFO L134 CoverageAnalysis]: Checked inductivity of 633 backedges. 128 proven. 0 refuted. 0 times theorem prover too weak. 505 trivial. 0 not checked. [2022-11-19 07:53:36,361 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 07:53:36,362 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [251688023] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:53:36,363 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:53:36,364 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:53:36,364 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [989613314] [2022-11-19 07:53:36,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:53:36,365 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:53:36,366 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:53:36,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:53:36,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:53:36,367 INFO L87 Difference]: Start difference. First operand 64652 states and 92254 transitions. Second operand has 3 states, 3 states have (on average 66.33333333333333) internal successors, (199), 3 states have internal predecessors, (199), 3 states have call successors, (62), 3 states have call predecessors, (62), 3 states have return successors, (60), 3 states have call predecessors, (60), 3 states have call successors, (60) [2022-11-19 07:53:40,942 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 [] [2022-11-19 07:53:44,168 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 [] [2022-11-19 07:53:48,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:53:48,506 INFO L93 Difference]: Finished difference Result 186467 states and 265963 transitions. [2022-11-19 07:53:48,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:53:48,506 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 66.33333333333333) internal successors, (199), 3 states have internal predecessors, (199), 3 states have call successors, (62), 3 states have call predecessors, (62), 3 states have return successors, (60), 3 states have call predecessors, (60), 3 states have call successors, (60) Word has length 441 [2022-11-19 07:53:48,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:53:49,040 INFO L225 Difference]: With dead ends: 186467 [2022-11-19 07:53:49,040 INFO L226 Difference]: Without dead ends: 121850 [2022-11-19 07:53:49,456 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 440 GetRequests, 439 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:53:49,457 INFO L413 NwaCegarLoop]: 3313 mSDtfsCounter, 2362 mSDsluCounter, 2655 mSDsCounter, 0 mSdLazyCounter, 717 mSolverCounterSat, 49 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2363 SdHoareTripleChecker+Valid, 5968 SdHoareTripleChecker+Invalid, 768 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 717 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.8s IncrementalHoareTripleChecker+Time [2022-11-19 07:53:49,457 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2363 Valid, 5968 Invalid, 768 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 717 Invalid, 2 Unknown, 0 Unchecked, 7.8s Time] [2022-11-19 07:53:49,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121850 states. [2022-11-19 07:53:54,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121850 to 121570. [2022-11-19 07:53:54,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121570 states, 76907 states have (on average 1.315237884717906) internal successors, (101151), 78257 states have internal predecessors, (101151), 35650 states have call successors, (35650), 9096 states have call predecessors, (35650), 9012 states have return successors, (36097), 35192 states have call predecessors, (36097), 35649 states have call successors, (36097) [2022-11-19 07:53:55,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121570 states to 121570 states and 172898 transitions. [2022-11-19 07:53:55,204 INFO L78 Accepts]: Start accepts. Automaton has 121570 states and 172898 transitions. Word has length 441 [2022-11-19 07:53:55,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:53:55,206 INFO L495 AbstractCegarLoop]: Abstraction has 121570 states and 172898 transitions. [2022-11-19 07:53:55,206 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 66.33333333333333) internal successors, (199), 3 states have internal predecessors, (199), 3 states have call successors, (62), 3 states have call predecessors, (62), 3 states have return successors, (60), 3 states have call predecessors, (60), 3 states have call successors, (60) [2022-11-19 07:53:55,206 INFO L276 IsEmpty]: Start isEmpty. Operand 121570 states and 172898 transitions. [2022-11-19 07:53:55,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 463 [2022-11-19 07:53:55,502 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:53:55,503 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:53:55,531 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_781baa4f-f6d4-4005-a4d1-0ffe212348cb/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-19 07:53:55,719 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_781baa4f-f6d4-4005-a4d1-0ffe212348cb/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2022-11-19 07:53:55,719 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:53:55,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:53:55,720 INFO L85 PathProgramCache]: Analyzing trace with hash 671499052, now seen corresponding path program 1 times [2022-11-19 07:53:55,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:53:55,720 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1991838759] [2022-11-19 07:53:55,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:53:55,721 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:53:56,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:53:56,784 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:53:56,784 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1991838759] [2022-11-19 07:53:56,785 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-11-19 07:53:56,785 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1328859071] [2022-11-19 07:53:56,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:53:56,785 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:53:56,786 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_781baa4f-f6d4-4005-a4d1-0ffe212348cb/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:53:56,787 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_781baa4f-f6d4-4005-a4d1-0ffe212348cb/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:53:56,814 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_781baa4f-f6d4-4005-a4d1-0ffe212348cb/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-19 07:53:59,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:53:59,679 INFO L263 TraceCheckSpWp]: Trace formula consists of 7325 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-19 07:53:59,697 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:53:59,770 INFO L134 CoverageAnalysis]: Checked inductivity of 674 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 628 trivial. 0 not checked. [2022-11-19 07:53:59,770 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 07:53:59,771 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1328859071] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:53:59,771 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:53:59,771 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:53:59,772 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1741068659] [2022-11-19 07:53:59,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:53:59,773 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:53:59,773 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:53:59,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:53:59,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:53:59,774 INFO L87 Difference]: Start difference. First operand 121570 states and 172898 transitions. Second operand has 3 states, 3 states have (on average 64.66666666666667) internal successors, (194), 3 states have internal predecessors, (194), 2 states have call successors, (60), 2 states have call predecessors, (60), 2 states have return successors, (58), 2 states have call predecessors, (58), 2 states have call successors, (58) [2022-11-19 07:54:01,161 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:54:06,193 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:54:09,938 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:54:17,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:54:17,657 INFO L93 Difference]: Finished difference Result 273528 states and 389298 transitions. [2022-11-19 07:54:17,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:54:17,658 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 64.66666666666667) internal successors, (194), 3 states have internal predecessors, (194), 2 states have call successors, (60), 2 states have call predecessors, (60), 2 states have return successors, (58), 2 states have call predecessors, (58), 2 states have call successors, (58) Word has length 462 [2022-11-19 07:54:17,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:54:18,438 INFO L225 Difference]: With dead ends: 273528 [2022-11-19 07:54:18,438 INFO L226 Difference]: Without dead ends: 151993 [2022-11-19 07:54:19,151 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 461 GetRequests, 460 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:54:19,152 INFO L413 NwaCegarLoop]: 4878 mSDtfsCounter, 2752 mSDsluCounter, 2345 mSDsCounter, 0 mSdLazyCounter, 923 mSolverCounterSat, 44 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2753 SdHoareTripleChecker+Valid, 7223 SdHoareTripleChecker+Invalid, 969 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 923 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.6s IncrementalHoareTripleChecker+Time [2022-11-19 07:54:19,152 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2753 Valid, 7223 Invalid, 969 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 923 Invalid, 2 Unknown, 0 Unchecked, 11.6s Time] [2022-11-19 07:54:19,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151993 states.