./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-08_1a-drivers--rapidio--rapidio.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9ad7fb26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eecfff15-7398-40a0-ba18-69da49fa9746/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eecfff15-7398-40a0-ba18-69da49fa9746/bin/utaipan-aC7eJsxGYH/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eecfff15-7398-40a0-ba18-69da49fa9746/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eecfff15-7398-40a0-ba18-69da49fa9746/bin/utaipan-aC7eJsxGYH/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--rapidio--rapidio.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eecfff15-7398-40a0-ba18-69da49fa9746/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eecfff15-7398-40a0-ba18-69da49fa9746/bin/utaipan-aC7eJsxGYH --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 2689726c89c7be154f3b0bf0875aa4770854a9a3388665dc7aff0604f303b757 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 04:14:16,800 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 04:14:16,803 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 04:14:16,859 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 04:14:16,860 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 04:14:16,865 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 04:14:16,867 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 04:14:16,871 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 04:14:16,874 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 04:14:16,879 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 04:14:16,880 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 04:14:16,882 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 04:14:16,883 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 04:14:16,885 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 04:14:16,888 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 04:14:16,892 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 04:14:16,894 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 04:14:16,895 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 04:14:16,900 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 04:14:16,908 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 04:14:16,910 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 04:14:16,911 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 04:14:16,915 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 04:14:16,916 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 04:14:16,925 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 04:14:16,925 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 04:14:16,926 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 04:14:16,927 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 04:14:16,928 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 04:14:16,930 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 04:14:16,930 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 04:14:16,931 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 04:14:16,933 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 04:14:16,934 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 04:14:16,935 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 04:14:16,936 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 04:14:16,936 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 04:14:16,937 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 04:14:16,937 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 04:14:16,938 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 04:14:16,939 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 04:14:16,939 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eecfff15-7398-40a0-ba18-69da49fa9746/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-03 04:14:16,998 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 04:14:16,998 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 04:14:17,000 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 04:14:17,000 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 04:14:17,000 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 04:14:17,001 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 04:14:17,001 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-03 04:14:17,001 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 04:14:17,007 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 04:14:17,008 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-03 04:14:17,009 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-03 04:14:17,009 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 04:14:17,009 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-03 04:14:17,010 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-03 04:14:17,010 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-03 04:14:17,011 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 04:14:17,011 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-03 04:14:17,011 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 04:14:17,011 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 04:14:17,012 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 04:14:17,012 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 04:14:17,012 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 04:14:17,012 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 04:14:17,013 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 04:14:17,013 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 04:14:17,013 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 04:14:17,014 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 04:14:17,026 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 04:14:17,027 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 04:14:17,028 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 04:14:17,028 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 04:14:17,029 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-03 04:14:17,029 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-03 04:14:17,029 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 04:14:17,029 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 04:14:17,029 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 04:14:17,030 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eecfff15-7398-40a0-ba18-69da49fa9746/bin/utaipan-aC7eJsxGYH/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eecfff15-7398-40a0-ba18-69da49fa9746/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2689726c89c7be154f3b0bf0875aa4770854a9a3388665dc7aff0604f303b757 [2021-11-03 04:14:17,328 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 04:14:17,351 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 04:14:17,354 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 04:14:17,356 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 04:14:17,357 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 04:14:17,358 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eecfff15-7398-40a0-ba18-69da49fa9746/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--rapidio--rapidio.ko-entry_point.cil.out.i [2021-11-03 04:14:17,429 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eecfff15-7398-40a0-ba18-69da49fa9746/bin/utaipan-aC7eJsxGYH/data/c71bb8e6c/1ed93352b00f4ce1962b602b98b05cb5/FLAGebe5ce205 [2021-11-03 04:14:18,294 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 04:14:18,295 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eecfff15-7398-40a0-ba18-69da49fa9746/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--rapidio--rapidio.ko-entry_point.cil.out.i [2021-11-03 04:14:18,333 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eecfff15-7398-40a0-ba18-69da49fa9746/bin/utaipan-aC7eJsxGYH/data/c71bb8e6c/1ed93352b00f4ce1962b602b98b05cb5/FLAGebe5ce205 [2021-11-03 04:14:18,760 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eecfff15-7398-40a0-ba18-69da49fa9746/bin/utaipan-aC7eJsxGYH/data/c71bb8e6c/1ed93352b00f4ce1962b602b98b05cb5 [2021-11-03 04:14:18,763 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 04:14:18,764 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 04:14:18,766 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 04:14:18,766 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 04:14:18,769 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 04:14:18,770 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:14:18" (1/1) ... [2021-11-03 04:14:18,771 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e434654 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:14:18, skipping insertion in model container [2021-11-03 04:14:18,771 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:14:18" (1/1) ... [2021-11-03 04:14:18,779 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 04:14:18,905 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 04:14:20,103 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 04:14:20,105 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 04:14:20,128 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 04:14:20,336 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 04:14:20,397 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 04:14:20,412 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 04:14:20,418 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 04:14:20,424 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 04:14:20,425 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 04:14:20,428 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 04:14:20,430 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 04:14:20,435 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 04:14:20,437 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 04:14:20,438 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 04:14:20,440 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 04:14:20,443 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 04:14:20,444 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 04:14:20,463 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 04:14:20,469 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 04:14:20,485 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 04:14:20,488 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 04:14:20,492 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 04:14:20,522 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 04:14:20,529 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 04:14:20,706 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 04:14:20,707 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 04:14:20,713 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 04:14:20,726 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 04:14:20,727 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 04:14:20,733 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 04:14:20,895 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 04:14:20,902 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 04:14:20,908 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 04:14:20,913 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 04:14:20,919 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 04:14:20,929 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 04:14:20,936 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 04:14:20,943 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 04:14:20,952 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 04:14:20,968 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 04:14:20,976 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 04:14:20,987 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 04:14:20,994 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 04:14:20,995 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 04:14:21,008 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 04:14:21,008 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 04:14:21,036 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 04:14:21,042 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 04:14:21,091 WARN L228 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_eecfff15-7398-40a0-ba18-69da49fa9746/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--rapidio--rapidio.ko-entry_point.cil.out.i[258393,258406] [2021-11-03 04:14:21,193 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 04:14:21,331 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-11-03 04:14:21,331 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@27bfcee6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:14:21, skipping insertion in model container [2021-11-03 04:14:21,331 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-03 04:14:21,332 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-03 04:14:21,334 INFO L168 Benchmark]: Toolchain (without parser) took 2568.31 ms. Allocated memory was 100.7 MB in the beginning and 136.3 MB in the end (delta: 35.7 MB). Free memory was 65.9 MB in the beginning and 77.8 MB in the end (delta: -11.9 MB). Peak memory consumption was 49.4 MB. Max. memory is 16.1 GB. [2021-11-03 04:14:21,335 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 100.7 MB. Free memory was 71.3 MB in the beginning and 71.2 MB in the end (delta: 100.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-03 04:14:21,336 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2565.99 ms. Allocated memory was 100.7 MB in the beginning and 136.3 MB in the end (delta: 35.7 MB). Free memory was 65.8 MB in the beginning and 77.8 MB in the end (delta: -11.9 MB). Peak memory consumption was 49.4 MB. Max. memory is 16.1 GB. [2021-11-03 04:14:21,339 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 100.7 MB. Free memory was 71.3 MB in the beginning and 71.2 MB in the end (delta: 100.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 2565.99 ms. Allocated memory was 100.7 MB in the beginning and 136.3 MB in the end (delta: 35.7 MB). Free memory was 65.8 MB in the beginning and 77.8 MB in the end (delta: -11.9 MB). Peak memory consumption was 49.4 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 3290]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eecfff15-7398-40a0-ba18-69da49fa9746/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eecfff15-7398-40a0-ba18-69da49fa9746/bin/utaipan-aC7eJsxGYH/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eecfff15-7398-40a0-ba18-69da49fa9746/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eecfff15-7398-40a0-ba18-69da49fa9746/bin/utaipan-aC7eJsxGYH/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--rapidio--rapidio.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eecfff15-7398-40a0-ba18-69da49fa9746/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eecfff15-7398-40a0-ba18-69da49fa9746/bin/utaipan-aC7eJsxGYH --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 2689726c89c7be154f3b0bf0875aa4770854a9a3388665dc7aff0604f303b757 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 04:14:23,763 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 04:14:23,766 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 04:14:23,812 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 04:14:23,813 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 04:14:23,815 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 04:14:23,817 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 04:14:23,821 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 04:14:23,824 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 04:14:23,825 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 04:14:23,827 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 04:14:23,829 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 04:14:23,829 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 04:14:23,831 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 04:14:23,833 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 04:14:23,835 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 04:14:23,836 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 04:14:23,837 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 04:14:23,840 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 04:14:23,843 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 04:14:23,845 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 04:14:23,848 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 04:14:23,850 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 04:14:23,851 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 04:14:23,855 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 04:14:23,856 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 04:14:23,856 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 04:14:23,857 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 04:14:23,858 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 04:14:23,859 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 04:14:23,860 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 04:14:23,861 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 04:14:23,862 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 04:14:23,863 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 04:14:23,864 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 04:14:23,865 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 04:14:23,866 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 04:14:23,866 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 04:14:23,867 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 04:14:23,868 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 04:14:23,869 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 04:14:23,870 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eecfff15-7398-40a0-ba18-69da49fa9746/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-03 04:14:23,900 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 04:14:23,900 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 04:14:23,901 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 04:14:23,901 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 04:14:23,901 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 04:14:23,902 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 04:14:23,902 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 04:14:23,902 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 04:14:23,902 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 04:14:23,903 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 04:14:23,903 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 04:14:23,904 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 04:14:23,904 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 04:14:23,904 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 04:14:23,904 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 04:14:23,904 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-03 04:14:23,904 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-03 04:14:23,905 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 04:14:23,905 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 04:14:23,905 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 04:14:23,905 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 04:14:23,905 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-03 04:14:23,906 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 04:14:23,906 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 04:14:23,906 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 04:14:23,906 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 04:14:23,907 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 04:14:23,907 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-03 04:14:23,907 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-03 04:14:23,907 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 04:14:23,907 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 04:14:23,907 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 04:14:23,908 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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_eecfff15-7398-40a0-ba18-69da49fa9746/bin/utaipan-aC7eJsxGYH/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eecfff15-7398-40a0-ba18-69da49fa9746/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2689726c89c7be154f3b0bf0875aa4770854a9a3388665dc7aff0604f303b757 [2021-11-03 04:14:24,283 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 04:14:24,304 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 04:14:24,307 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 04:14:24,308 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 04:14:24,309 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 04:14:24,310 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eecfff15-7398-40a0-ba18-69da49fa9746/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--rapidio--rapidio.ko-entry_point.cil.out.i [2021-11-03 04:14:24,406 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eecfff15-7398-40a0-ba18-69da49fa9746/bin/utaipan-aC7eJsxGYH/data/d0b4e2904/971f88a038d74eb7b90c258a5f331310/FLAG09f524611 [2021-11-03 04:14:25,480 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 04:14:25,482 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eecfff15-7398-40a0-ba18-69da49fa9746/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--rapidio--rapidio.ko-entry_point.cil.out.i [2021-11-03 04:14:25,536 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eecfff15-7398-40a0-ba18-69da49fa9746/bin/utaipan-aC7eJsxGYH/data/d0b4e2904/971f88a038d74eb7b90c258a5f331310/FLAG09f524611 [2021-11-03 04:14:25,879 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eecfff15-7398-40a0-ba18-69da49fa9746/bin/utaipan-aC7eJsxGYH/data/d0b4e2904/971f88a038d74eb7b90c258a5f331310 [2021-11-03 04:14:25,882 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 04:14:25,883 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 04:14:25,886 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 04:14:25,886 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 04:14:25,891 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 04:14:25,892 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:14:25" (1/1) ... [2021-11-03 04:14:25,894 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ee6ba9f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:14:25, skipping insertion in model container [2021-11-03 04:14:25,895 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:14:25" (1/1) ... [2021-11-03 04:14:25,905 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 04:14:26,042 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 04:14:28,421 WARN L228 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_eecfff15-7398-40a0-ba18-69da49fa9746/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--rapidio--rapidio.ko-entry_point.cil.out.i[258393,258406] [2021-11-03 04:14:28,484 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 04:14:28,611 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-03 04:14:28,718 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 04:14:29,204 WARN L228 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_eecfff15-7398-40a0-ba18-69da49fa9746/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--rapidio--rapidio.ko-entry_point.cil.out.i[258393,258406] [2021-11-03 04:14:29,220 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 04:14:29,262 INFO L203 MainTranslator]: Completed pre-run [2021-11-03 04:14:29,725 WARN L228 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_eecfff15-7398-40a0-ba18-69da49fa9746/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--rapidio--rapidio.ko-entry_point.cil.out.i[258393,258406] [2021-11-03 04:14:29,731 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 04:14:29,953 INFO L208 MainTranslator]: Completed translation [2021-11-03 04:14:29,954 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:14:29 WrapperNode [2021-11-03 04:14:29,954 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-03 04:14:29,956 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-03 04:14:29,956 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-03 04:14:29,956 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-03 04:14:29,964 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:14:29" (1/1) ... [2021-11-03 04:14:30,132 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:14:29" (1/1) ... [2021-11-03 04:14:30,588 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-03 04:14:30,600 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-03 04:14:30,600 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-03 04:14:30,600 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-03 04:14:30,617 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:14:29" (1/1) ... [2021-11-03 04:14:30,617 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:14:29" (1/1) ... [2021-11-03 04:14:30,688 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:14:29" (1/1) ... [2021-11-03 04:14:30,689 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:14:29" (1/1) ... [2021-11-03 04:14:31,095 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:14:29" (1/1) ... [2021-11-03 04:14:31,155 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:14:29" (1/1) ... [2021-11-03 04:14:31,197 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:14:29" (1/1) ... [2021-11-03 04:14:31,251 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-03 04:14:31,254 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-03 04:14:31,254 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-03 04:14:31,255 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-03 04:14:31,256 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:14:29" (1/1) ... [2021-11-03 04:14:31,266 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 04:14:31,280 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eecfff15-7398-40a0-ba18-69da49fa9746/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 04:14:31,294 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eecfff15-7398-40a0-ba18-69da49fa9746/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-03 04:14:31,319 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eecfff15-7398-40a0-ba18-69da49fa9746/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-03 04:14:31,353 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-03 04:14:31,354 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-03 04:14:31,354 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-03 04:14:31,355 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2021-11-03 04:14:31,355 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-03 04:14:31,355 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-03 04:14:31,355 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-03 04:14:31,355 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-03 04:14:31,356 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2021-11-03 04:14:31,356 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-03 04:14:31,356 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-03 04:14:31,356 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-03 04:14:31,356 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2021-11-03 04:14:31,356 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-03 04:14:31,357 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-03 04:14:31,357 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-03 04:14:31,357 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-03 04:14:31,357 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-03 04:14:31,357 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-03 04:14:31,358 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-03 04:14:31,358 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-03 04:15:40,243 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-03 04:15:40,244 INFO L299 CfgBuilder]: Removed 1850 assume(true) statements. [2021-11-03 04:15:40,249 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 04:15:40 BoogieIcfgContainer [2021-11-03 04:15:40,249 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-03 04:15:40,251 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-03 04:15:40,251 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-03 04:15:40,254 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-03 04:15:40,254 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 04:14:25" (1/3) ... [2021-11-03 04:15:40,255 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79a86036 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 04:15:40, skipping insertion in model container [2021-11-03 04:15:40,255 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:14:29" (2/3) ... [2021-11-03 04:15:40,256 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79a86036 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 04:15:40, skipping insertion in model container [2021-11-03 04:15:40,256 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 04:15:40" (3/3) ... [2021-11-03 04:15:40,257 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-08_1a-drivers--rapidio--rapidio.ko-entry_point.cil.out.i [2021-11-03 04:15:40,263 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-03 04:15:40,264 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 53 error locations. [2021-11-03 04:15:40,330 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-03 04:15:40,341 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-03 04:15:40,341 INFO L340 AbstractCegarLoop]: Starting to check reachability of 53 error locations. [2021-11-03 04:15:40,398 INFO L276 IsEmpty]: Start isEmpty. Operand has 1939 states, 1885 states have (on average 1.4482758620689655) internal successors, (2730), 1938 states have internal predecessors, (2730), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:15:40,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-11-03 04:15:40,406 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:15:40,407 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:15:40,407 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr52ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 50 more)] === [2021-11-03 04:15:40,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:15:40,412 INFO L85 PathProgramCache]: Analyzing trace with hash 515534990, now seen corresponding path program 1 times [2021-11-03 04:15:40,443 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:15:40,444 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1512649503] [2021-11-03 04:15:40,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:15:40,445 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:15:40,445 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eecfff15-7398-40a0-ba18-69da49fa9746/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:15:40,450 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eecfff15-7398-40a0-ba18-69da49fa9746/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:15:40,475 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eecfff15-7398-40a0-ba18-69da49fa9746/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-03 04:16:01,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:16:01,949 INFO L263 TraceCheckSpWp]: Trace formula consists of 3552 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-03 04:16:01,961 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:16:02,271 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:16:02,271 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:16:02,484 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:16:02,485 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:16:02,485 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1512649503] [2021-11-03 04:16:02,486 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1512649503] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:16:02,486 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:16:02,486 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-03 04:16:02,488 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [729144508] [2021-11-03 04:16:02,493 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-03 04:16:02,493 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:16:02,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-03 04:16:02,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-03 04:16:02,526 INFO L87 Difference]: Start difference. First operand has 1939 states, 1885 states have (on average 1.4482758620689655) internal successors, (2730), 1938 states have internal predecessors, (2730), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 17.0) internal successors, (34), 2 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:16:02,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:16:02,681 INFO L93 Difference]: Finished difference Result 3874 states and 5455 transitions. [2021-11-03 04:16:02,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-03 04:16:02,683 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 17.0) internal successors, (34), 2 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2021-11-03 04:16:02,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:16:02,710 INFO L225 Difference]: With dead ends: 3874 [2021-11-03 04:16:02,710 INFO L226 Difference]: Without dead ends: 1915 [2021-11-03 04:16:02,718 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-03 04:16:02,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1915 states. [2021-11-03 04:16:02,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1915 to 1915. [2021-11-03 04:16:02,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1915 states, 1862 states have (on average 1.3823845327604727) internal successors, (2574), 1914 states have internal predecessors, (2574), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:16:02,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1915 states to 1915 states and 2574 transitions. [2021-11-03 04:16:02,840 INFO L78 Accepts]: Start accepts. Automaton has 1915 states and 2574 transitions. Word has length 34 [2021-11-03 04:16:02,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:16:02,841 INFO L470 AbstractCegarLoop]: Abstraction has 1915 states and 2574 transitions. [2021-11-03 04:16:02,841 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 17.0) internal successors, (34), 2 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:16:02,841 INFO L276 IsEmpty]: Start isEmpty. Operand 1915 states and 2574 transitions. [2021-11-03 04:16:02,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-11-03 04:16:02,843 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:16:02,844 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:16:02,938 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eecfff15-7398-40a0-ba18-69da49fa9746/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-03 04:16:03,055 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eecfff15-7398-40a0-ba18-69da49fa9746/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:16:03,056 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr52ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 50 more)] === [2021-11-03 04:16:03,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:16:03,057 INFO L85 PathProgramCache]: Analyzing trace with hash -354019178, now seen corresponding path program 1 times [2021-11-03 04:16:03,063 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:16:03,063 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1591398917] [2021-11-03 04:16:03,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:16:03,064 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:16:03,064 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eecfff15-7398-40a0-ba18-69da49fa9746/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:16:03,065 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eecfff15-7398-40a0-ba18-69da49fa9746/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:16:03,067 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eecfff15-7398-40a0-ba18-69da49fa9746/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-03 04:16:23,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:16:24,462 INFO L263 TraceCheckSpWp]: Trace formula consists of 3552 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-03 04:16:24,469 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:16:24,662 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:16:24,662 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:16:24,842 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:16:24,842 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:16:24,842 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1591398917] [2021-11-03 04:16:24,842 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1591398917] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:16:24,843 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:16:24,843 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-03 04:16:24,843 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1704016768] [2021-11-03 04:16:24,844 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 04:16:24,845 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:16:24,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 04:16:24,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 04:16:24,846 INFO L87 Difference]: Start difference. First operand 1915 states and 2574 transitions. Second operand has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:16:27,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:16:27,851 INFO L93 Difference]: Finished difference Result 7531 states and 10160 transitions. [2021-11-03 04:16:27,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 04:16:27,851 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2021-11-03 04:16:27,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:16:27,897 INFO L225 Difference]: With dead ends: 7531 [2021-11-03 04:16:27,898 INFO L226 Difference]: Without dead ends: 5636 [2021-11-03 04:16:27,903 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 04:16:27,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5636 states. [2021-11-03 04:16:28,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5636 to 5428. [2021-11-03 04:16:28,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5428 states, 5375 states have (on average 1.3949767441860466) internal successors, (7498), 5427 states have internal predecessors, (7498), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:16:28,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5428 states to 5428 states and 7498 transitions. [2021-11-03 04:16:28,123 INFO L78 Accepts]: Start accepts. Automaton has 5428 states and 7498 transitions. Word has length 34 [2021-11-03 04:16:28,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:16:28,125 INFO L470 AbstractCegarLoop]: Abstraction has 5428 states and 7498 transitions. [2021-11-03 04:16:28,126 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:16:28,126 INFO L276 IsEmpty]: Start isEmpty. Operand 5428 states and 7498 transitions. [2021-11-03 04:16:28,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-11-03 04:16:28,134 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:16:28,135 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:16:28,281 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eecfff15-7398-40a0-ba18-69da49fa9746/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2021-11-03 04:16:28,335 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eecfff15-7398-40a0-ba18-69da49fa9746/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:16:28,336 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr52ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 50 more)] === [2021-11-03 04:16:28,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:16:28,336 INFO L85 PathProgramCache]: Analyzing trace with hash -199593292, now seen corresponding path program 1 times [2021-11-03 04:16:28,344 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:16:28,344 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [733218355] [2021-11-03 04:16:28,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:16:28,345 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:16:28,345 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eecfff15-7398-40a0-ba18-69da49fa9746/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:16:28,346 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eecfff15-7398-40a0-ba18-69da49fa9746/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:16:28,351 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eecfff15-7398-40a0-ba18-69da49fa9746/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-03 04:16:49,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:16:49,643 INFO L263 TraceCheckSpWp]: Trace formula consists of 3575 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-03 04:16:49,653 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:16:50,012 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:16:50,012 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:16:50,331 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:16:50,332 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:16:50,332 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [733218355] [2021-11-03 04:16:50,332 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [733218355] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:16:50,332 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:16:50,332 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-03 04:16:50,333 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1908119970] [2021-11-03 04:16:50,333 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 04:16:50,333 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:16:50,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 04:16:50,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 04:16:50,335 INFO L87 Difference]: Start difference. First operand 5428 states and 7498 transitions. Second operand has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 2 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:16:52,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:16:52,199 INFO L93 Difference]: Finished difference Result 16086 states and 22297 transitions. [2021-11-03 04:16:52,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 04:16:52,200 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 2 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 40 [2021-11-03 04:16:52,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:16:52,266 INFO L225 Difference]: With dead ends: 16086 [2021-11-03 04:16:52,266 INFO L226 Difference]: Without dead ends: 10676 [2021-11-03 04:16:52,279 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 04:16:52,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10676 states. [2021-11-03 04:16:52,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10676 to 10468. [2021-11-03 04:16:52,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10468 states, 10415 states have (on average 1.3924147863658185) internal successors, (14502), 10467 states have internal predecessors, (14502), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:16:52,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10468 states to 10468 states and 14502 transitions. [2021-11-03 04:16:52,707 INFO L78 Accepts]: Start accepts. Automaton has 10468 states and 14502 transitions. Word has length 40 [2021-11-03 04:16:52,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:16:52,707 INFO L470 AbstractCegarLoop]: Abstraction has 10468 states and 14502 transitions. [2021-11-03 04:16:52,708 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 2 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:16:52,708 INFO L276 IsEmpty]: Start isEmpty. Operand 10468 states and 14502 transitions. [2021-11-03 04:16:52,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-11-03 04:16:52,714 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:16:52,714 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:16:52,859 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eecfff15-7398-40a0-ba18-69da49fa9746/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-03 04:16:52,931 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eecfff15-7398-40a0-ba18-69da49fa9746/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:16:52,931 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 50 more)] === [2021-11-03 04:16:52,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:16:52,932 INFO L85 PathProgramCache]: Analyzing trace with hash -518682485, now seen corresponding path program 1 times [2021-11-03 04:16:52,938 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:16:52,938 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [28444589] [2021-11-03 04:16:52,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:16:52,939 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:16:52,939 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eecfff15-7398-40a0-ba18-69da49fa9746/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:16:52,940 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eecfff15-7398-40a0-ba18-69da49fa9746/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:16:52,995 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eecfff15-7398-40a0-ba18-69da49fa9746/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-03 04:17:13,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:17:14,318 INFO L263 TraceCheckSpWp]: Trace formula consists of 3663 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-03 04:17:14,326 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:17:14,626 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:17:14,626 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:17:14,864 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:17:14,864 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:17:14,864 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [28444589] [2021-11-03 04:17:14,865 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [28444589] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:17:14,865 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:17:14,865 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-03 04:17:14,865 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1308221021] [2021-11-03 04:17:14,866 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 04:17:14,866 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:17:14,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 04:17:14,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 04:17:14,867 INFO L87 Difference]: Start difference. First operand 10468 states and 14502 transitions. Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:17:16,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:17:16,026 INFO L93 Difference]: Finished difference Result 30335 states and 41888 transitions. [2021-11-03 04:17:16,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 04:17:16,027 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 50 [2021-11-03 04:17:16,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:17:16,125 INFO L225 Difference]: With dead ends: 30335 [2021-11-03 04:17:16,126 INFO L226 Difference]: Without dead ends: 19887 [2021-11-03 04:17:16,146 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 04:17:16,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19887 states. [2021-11-03 04:17:16,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19887 to 19694. [2021-11-03 04:17:16,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19694 states, 19641 states have (on average 1.3877602973372027) internal successors, (27257), 19693 states have internal predecessors, (27257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:17:16,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19694 states to 19694 states and 27257 transitions. [2021-11-03 04:17:16,808 INFO L78 Accepts]: Start accepts. Automaton has 19694 states and 27257 transitions. Word has length 50 [2021-11-03 04:17:16,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:17:16,810 INFO L470 AbstractCegarLoop]: Abstraction has 19694 states and 27257 transitions. [2021-11-03 04:17:16,811 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:17:16,812 INFO L276 IsEmpty]: Start isEmpty. Operand 19694 states and 27257 transitions. [2021-11-03 04:17:16,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-11-03 04:17:16,814 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:17:16,814 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:17:16,963 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eecfff15-7398-40a0-ba18-69da49fa9746/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-03 04:17:17,027 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eecfff15-7398-40a0-ba18-69da49fa9746/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:17:17,027 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr51ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 50 more)] === [2021-11-03 04:17:17,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:17:17,028 INFO L85 PathProgramCache]: Analyzing trace with hash -320551080, now seen corresponding path program 1 times [2021-11-03 04:17:17,039 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:17:17,043 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [549408748] [2021-11-03 04:17:17,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:17:17,044 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:17:17,044 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eecfff15-7398-40a0-ba18-69da49fa9746/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:17:17,046 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eecfff15-7398-40a0-ba18-69da49fa9746/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:17:17,067 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eecfff15-7398-40a0-ba18-69da49fa9746/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-03 04:17:38,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:17:39,071 INFO L263 TraceCheckSpWp]: Trace formula consists of 3687 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-03 04:17:39,079 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:17:39,496 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:17:39,496 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:17:39,838 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:17:39,838 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:17:39,839 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [549408748] [2021-11-03 04:17:39,839 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [549408748] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:17:39,839 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:17:39,839 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-03 04:17:39,839 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1661361421] [2021-11-03 04:17:39,840 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 04:17:39,840 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:17:39,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 04:17:39,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 04:17:39,841 INFO L87 Difference]: Start difference. First operand 19694 states and 27257 transitions. Second operand has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:17:41,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:17:41,235 INFO L93 Difference]: Finished difference Result 56989 states and 78580 transitions. [2021-11-03 04:17:41,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 04:17:41,236 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 62 [2021-11-03 04:17:41,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:17:41,354 INFO L225 Difference]: With dead ends: 56989 [2021-11-03 04:17:41,354 INFO L226 Difference]: Without dead ends: 37315 [2021-11-03 04:17:41,397 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 04:17:41,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37315 states. [2021-11-03 04:17:42,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37315 to 37132. [2021-11-03 04:17:42,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37132 states, 37079 states have (on average 1.3807815744761185) internal successors, (51198), 37131 states have internal predecessors, (51198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:17:42,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37132 states to 37132 states and 51198 transitions. [2021-11-03 04:17:42,895 INFO L78 Accepts]: Start accepts. Automaton has 37132 states and 51198 transitions. Word has length 62 [2021-11-03 04:17:42,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:17:42,897 INFO L470 AbstractCegarLoop]: Abstraction has 37132 states and 51198 transitions. [2021-11-03 04:17:42,897 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:17:42,897 INFO L276 IsEmpty]: Start isEmpty. Operand 37132 states and 51198 transitions. [2021-11-03 04:17:42,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-11-03 04:17:42,900 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:17:42,901 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:17:43,050 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eecfff15-7398-40a0-ba18-69da49fa9746/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-03 04:17:43,115 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eecfff15-7398-40a0-ba18-69da49fa9746/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:17:43,115 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 50 more)] === [2021-11-03 04:17:43,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:17:43,116 INFO L85 PathProgramCache]: Analyzing trace with hash 1126343220, now seen corresponding path program 1 times [2021-11-03 04:17:43,122 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:17:43,123 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [785196832] [2021-11-03 04:17:43,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:17:43,123 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:17:43,123 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eecfff15-7398-40a0-ba18-69da49fa9746/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:17:43,125 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eecfff15-7398-40a0-ba18-69da49fa9746/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:17:43,126 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eecfff15-7398-40a0-ba18-69da49fa9746/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-03 04:18:04,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:18:04,796 INFO L263 TraceCheckSpWp]: Trace formula consists of 3770 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-03 04:18:04,801 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:18:05,209 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:18:05,209 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:18:05,596 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:18:05,596 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:18:05,596 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [785196832] [2021-11-03 04:18:05,596 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [785196832] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:18:05,597 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:18:05,597 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-03 04:18:05,597 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1575856141] [2021-11-03 04:18:05,597 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 04:18:05,597 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:18:05,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 04:18:05,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 04:18:05,598 INFO L87 Difference]: Start difference. First operand 37132 states and 51198 transitions. Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:18:07,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:18:07,090 INFO L93 Difference]: Finished difference Result 88778 states and 121833 transitions. [2021-11-03 04:18:07,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 04:18:07,091 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), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2021-11-03 04:18:07,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:18:07,248 INFO L225 Difference]: With dead ends: 88778 [2021-11-03 04:18:07,249 INFO L226 Difference]: Without dead ends: 51666 [2021-11-03 04:18:07,298 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 04:18:07,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51666 states. [2021-11-03 04:18:08,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51666 to 51188. [2021-11-03 04:18:09,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51188 states, 51135 states have (on average 1.3697663048792412) internal successors, (70043), 51187 states have internal predecessors, (70043), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:18:09,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51188 states to 51188 states and 70043 transitions. [2021-11-03 04:18:09,242 INFO L78 Accepts]: Start accepts. Automaton has 51188 states and 70043 transitions. Word has length 70 [2021-11-03 04:18:09,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:18:09,245 INFO L470 AbstractCegarLoop]: Abstraction has 51188 states and 70043 transitions. [2021-11-03 04:18:09,245 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:18:09,245 INFO L276 IsEmpty]: Start isEmpty. Operand 51188 states and 70043 transitions. [2021-11-03 04:18:09,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2021-11-03 04:18:09,251 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:18:09,251 INFO L513 BasicCegarLoop]: trace histogram [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] [2021-11-03 04:18:09,395 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eecfff15-7398-40a0-ba18-69da49fa9746/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (7)] Ended with exit code 0 [2021-11-03 04:18:09,467 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eecfff15-7398-40a0-ba18-69da49fa9746/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:18:09,467 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 50 more)] === [2021-11-03 04:18:09,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:18:09,468 INFO L85 PathProgramCache]: Analyzing trace with hash 742851849, now seen corresponding path program 1 times [2021-11-03 04:18:09,475 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:18:09,477 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [743872738] [2021-11-03 04:18:09,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:18:09,478 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:18:09,478 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eecfff15-7398-40a0-ba18-69da49fa9746/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:18:09,479 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eecfff15-7398-40a0-ba18-69da49fa9746/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:18:09,480 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eecfff15-7398-40a0-ba18-69da49fa9746/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-03 04:18:31,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:18:32,000 INFO L263 TraceCheckSpWp]: Trace formula consists of 3841 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-03 04:18:32,008 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:18:32,505 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:18:32,505 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:18:32,946 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:18:32,946 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:18:32,947 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [743872738] [2021-11-03 04:18:32,947 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [743872738] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:18:32,947 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:18:32,947 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-03 04:18:32,947 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [153886259] [2021-11-03 04:18:32,948 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-03 04:18:32,948 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:18:32,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-03 04:18:32,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-03 04:18:32,949 INFO L87 Difference]: Start difference. First operand 51188 states and 70043 transitions. Second operand has 5 states, 5 states have (on average 17.8) internal successors, (89), 5 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:18:37,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:18:37,350 INFO L93 Difference]: Finished difference Result 85770 states and 117315 transitions. [2021-11-03 04:18:37,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-03 04:18:37,350 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 5 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 89 [2021-11-03 04:18:37,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:18:37,443 INFO L225 Difference]: With dead ends: 85770 [2021-11-03 04:18:37,447 INFO L226 Difference]: Without dead ends: 34562 [2021-11-03 04:18:37,516 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 178 GetRequests, 173 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-03 04:18:37,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34562 states. [2021-11-03 04:18:38,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34562 to 34422. [2021-11-03 04:18:38,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34422 states, 34369 states have (on average 1.3685879717187) internal successors, (47037), 34421 states have internal predecessors, (47037), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:18:38,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34422 states to 34422 states and 47037 transitions. [2021-11-03 04:18:38,745 INFO L78 Accepts]: Start accepts. Automaton has 34422 states and 47037 transitions. Word has length 89 [2021-11-03 04:18:38,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:18:38,745 INFO L470 AbstractCegarLoop]: Abstraction has 34422 states and 47037 transitions. [2021-11-03 04:18:38,745 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 5 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:18:38,746 INFO L276 IsEmpty]: Start isEmpty. Operand 34422 states and 47037 transitions. [2021-11-03 04:18:38,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2021-11-03 04:18:38,751 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:18:38,751 INFO L513 BasicCegarLoop]: trace histogram [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] [2021-11-03 04:18:38,911 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eecfff15-7398-40a0-ba18-69da49fa9746/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-03 04:18:38,975 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eecfff15-7398-40a0-ba18-69da49fa9746/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:18:38,975 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 50 more)] === [2021-11-03 04:18:38,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:18:38,976 INFO L85 PathProgramCache]: Analyzing trace with hash 1623496974, now seen corresponding path program 1 times [2021-11-03 04:18:38,987 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:18:38,987 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [449128130] [2021-11-03 04:18:38,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:18:38,988 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:18:38,988 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eecfff15-7398-40a0-ba18-69da49fa9746/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:18:38,989 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eecfff15-7398-40a0-ba18-69da49fa9746/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:18:39,028 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eecfff15-7398-40a0-ba18-69da49fa9746/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-03 04:19:01,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:19:01,666 INFO L263 TraceCheckSpWp]: Trace formula consists of 3847 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-03 04:19:01,669 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:19:02,009 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:19:02,009 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:19:02,326 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:19:02,326 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:19:02,326 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [449128130] [2021-11-03 04:19:02,326 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [449128130] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:19:02,326 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:19:02,326 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-03 04:19:02,327 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1174560575] [2021-11-03 04:19:02,327 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 04:19:02,327 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:19:02,328 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 04:19:02,328 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 04:19:02,328 INFO L87 Difference]: Start difference. First operand 34422 states and 47037 transitions. Second operand has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:19:06,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:19:06,286 INFO L93 Difference]: Finished difference Result 100670 states and 137233 transitions. [2021-11-03 04:19:06,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 04:19:06,287 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2021-11-03 04:19:06,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:19:06,402 INFO L225 Difference]: With dead ends: 100670 [2021-11-03 04:19:06,402 INFO L226 Difference]: Without dead ends: 66700 [2021-11-03 04:19:06,440 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 180 GetRequests, 178 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 04:19:06,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66700 states. [2021-11-03 04:19:08,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66700 to 66278. [2021-11-03 04:19:08,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66278 states, 66225 states have (on average 1.363065307663269) internal successors, (90269), 66277 states have internal predecessors, (90269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:19:08,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66278 states to 66278 states and 90269 transitions. [2021-11-03 04:19:08,279 INFO L78 Accepts]: Start accepts. Automaton has 66278 states and 90269 transitions. Word has length 91 [2021-11-03 04:19:08,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:19:08,280 INFO L470 AbstractCegarLoop]: Abstraction has 66278 states and 90269 transitions. [2021-11-03 04:19:08,280 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:19:08,280 INFO L276 IsEmpty]: Start isEmpty. Operand 66278 states and 90269 transitions. [2021-11-03 04:19:08,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2021-11-03 04:19:08,290 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:19:08,290 INFO L513 BasicCegarLoop]: trace histogram [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] [2021-11-03 04:19:08,399 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eecfff15-7398-40a0-ba18-69da49fa9746/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (9)] Ended with exit code 0 [2021-11-03 04:19:08,507 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eecfff15-7398-40a0-ba18-69da49fa9746/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:19:08,507 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr51ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 50 more)] === [2021-11-03 04:19:08,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:19:08,508 INFO L85 PathProgramCache]: Analyzing trace with hash -1685574821, now seen corresponding path program 1 times [2021-11-03 04:19:08,514 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:19:08,514 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1571019357] [2021-11-03 04:19:08,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:19:08,514 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:19:08,514 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eecfff15-7398-40a0-ba18-69da49fa9746/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:19:08,515 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eecfff15-7398-40a0-ba18-69da49fa9746/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:19:08,517 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eecfff15-7398-40a0-ba18-69da49fa9746/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-03 04:19:29,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:19:29,944 INFO L263 TraceCheckSpWp]: Trace formula consists of 3871 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-03 04:19:29,949 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:19:30,445 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:19:30,445 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:19:30,905 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:19:30,906 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:19:30,906 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1571019357] [2021-11-03 04:19:30,906 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1571019357] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:19:30,906 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:19:30,906 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-03 04:19:30,906 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [859230615] [2021-11-03 04:19:30,906 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 04:19:30,907 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:19:30,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 04:19:30,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 04:19:30,907 INFO L87 Difference]: Start difference. First operand 66278 states and 90269 transitions. Second operand has 4 states, 4 states have (on average 35.0) internal successors, (140), 4 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:19:36,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:19:36,164 INFO L93 Difference]: Finished difference Result 193898 states and 263461 transitions. [2021-11-03 04:19:36,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 04:19:36,164 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 35.0) internal successors, (140), 4 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 103 [2021-11-03 04:19:36,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:19:36,383 INFO L225 Difference]: With dead ends: 193898 [2021-11-03 04:19:36,384 INFO L226 Difference]: Without dead ends: 128072 [2021-11-03 04:19:36,443 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 204 GetRequests, 202 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 04:19:36,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128072 states. [2021-11-03 04:19:39,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128072 to 127670. [2021-11-03 04:19:39,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127670 states, 127617 states have (on average 1.3565982588526606) internal successors, (173125), 127669 states have internal predecessors, (173125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:19:40,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127670 states to 127670 states and 173125 transitions. [2021-11-03 04:19:40,365 INFO L78 Accepts]: Start accepts. Automaton has 127670 states and 173125 transitions. Word has length 103 [2021-11-03 04:19:40,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:19:40,365 INFO L470 AbstractCegarLoop]: Abstraction has 127670 states and 173125 transitions. [2021-11-03 04:19:40,365 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.0) internal successors, (140), 4 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:19:40,366 INFO L276 IsEmpty]: Start isEmpty. Operand 127670 states and 173125 transitions. [2021-11-03 04:19:40,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2021-11-03 04:19:40,375 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:19:40,376 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:19:40,517 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eecfff15-7398-40a0-ba18-69da49fa9746/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-11-03 04:19:40,599 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eecfff15-7398-40a0-ba18-69da49fa9746/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:19:40,599 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 50 more)] === [2021-11-03 04:19:40,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:19:40,599 INFO L85 PathProgramCache]: Analyzing trace with hash 1534224086, now seen corresponding path program 1 times [2021-11-03 04:19:40,606 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:19:40,606 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [48198228] [2021-11-03 04:19:40,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:19:40,606 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:19:40,607 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eecfff15-7398-40a0-ba18-69da49fa9746/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:19:40,607 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eecfff15-7398-40a0-ba18-69da49fa9746/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:19:40,608 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eecfff15-7398-40a0-ba18-69da49fa9746/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-11-03 04:20:01,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:20:02,452 INFO L263 TraceCheckSpWp]: Trace formula consists of 3894 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-03 04:20:02,456 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:20:02,899 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-11-03 04:20:02,899 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:20:03,302 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-11-03 04:20:03,302 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:20:03,302 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [48198228] [2021-11-03 04:20:03,303 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [48198228] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:20:03,303 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:20:03,303 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-11-03 04:20:03,303 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2003282608] [2021-11-03 04:20:03,304 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-03 04:20:03,304 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:20:03,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-03 04:20:03,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-03 04:20:03,305 INFO L87 Difference]: Start difference. First operand 127670 states and 173125 transitions. Second operand has 8 states, 8 states have (on average 13.25) internal successors, (106), 8 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)