./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--atm--nicstar.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aef121e0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a43b3c29-418a-401f-8abb-001fe42d04c2/bin/utaipan-EQgc7hIp5V/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a43b3c29-418a-401f-8abb-001fe42d04c2/bin/utaipan-EQgc7hIp5V/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a43b3c29-418a-401f-8abb-001fe42d04c2/bin/utaipan-EQgc7hIp5V/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a43b3c29-418a-401f-8abb-001fe42d04c2/bin/utaipan-EQgc7hIp5V/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--atm--nicstar.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a43b3c29-418a-401f-8abb-001fe42d04c2/bin/utaipan-EQgc7hIp5V/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a43b3c29-418a-401f-8abb-001fe42d04c2/bin/utaipan-EQgc7hIp5V --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 4a1e17c33569fa40e536cd8c869720d5a80d6c0d7c343e9efbe1ac963f2ae01b --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-23 03:42:44,695 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 03:42:44,699 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 03:42:44,761 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 03:42:44,769 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 03:42:44,771 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 03:42:44,773 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 03:42:44,776 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 03:42:44,778 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 03:42:44,780 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 03:42:44,781 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 03:42:44,783 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 03:42:44,784 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 03:42:44,785 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 03:42:44,787 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 03:42:44,790 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 03:42:44,791 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 03:42:44,793 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 03:42:44,795 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 03:42:44,799 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 03:42:44,801 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 03:42:44,804 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 03:42:44,805 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 03:42:44,807 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 03:42:44,812 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 03:42:44,812 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 03:42:44,813 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 03:42:44,815 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 03:42:44,815 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 03:42:44,817 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 03:42:44,818 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 03:42:44,819 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 03:42:44,820 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 03:42:44,821 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 03:42:44,823 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 03:42:44,824 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 03:42:44,825 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 03:42:44,826 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 03:42:44,826 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 03:42:44,828 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 03:42:44,829 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 03:42:44,830 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a43b3c29-418a-401f-8abb-001fe42d04c2/bin/utaipan-EQgc7hIp5V/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-23 03:42:44,878 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 03:42:44,879 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 03:42:44,880 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 03:42:44,880 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 03:42:44,881 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 03:42:44,882 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 03:42:44,882 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 03:42:44,883 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 03:42:44,883 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 03:42:44,883 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-23 03:42:44,885 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 03:42:44,885 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 03:42:44,885 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-23 03:42:44,885 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-23 03:42:44,886 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 03:42:44,886 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-23 03:42:44,886 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-23 03:42:44,887 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-23 03:42:44,888 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 03:42:44,888 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 03:42:44,888 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 03:42:44,889 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 03:42:44,889 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 03:42:44,889 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 03:42:44,889 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 03:42:44,890 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 03:42:44,892 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 03:42:44,892 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 03:42:44,892 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 03:42:44,893 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 03:42:44,893 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 03:42:44,894 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 03:42:44,894 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 03:42:44,894 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-23 03:42:44,895 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 03:42:44,895 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 03:42:44,895 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 03:42:44,895 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 03:42:44,896 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_a43b3c29-418a-401f-8abb-001fe42d04c2/bin/utaipan-EQgc7hIp5V/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a43b3c29-418a-401f-8abb-001fe42d04c2/bin/utaipan-EQgc7hIp5V Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4a1e17c33569fa40e536cd8c869720d5a80d6c0d7c343e9efbe1ac963f2ae01b [2021-11-23 03:42:45,218 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 03:42:45,249 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 03:42:45,253 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 03:42:45,254 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 03:42:45,255 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 03:42:45,257 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a43b3c29-418a-401f-8abb-001fe42d04c2/bin/utaipan-EQgc7hIp5V/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--atm--nicstar.ko-entry_point.cil.out.i [2021-11-23 03:42:45,334 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a43b3c29-418a-401f-8abb-001fe42d04c2/bin/utaipan-EQgc7hIp5V/data/9681dc69f/225bde80dc06416bba14de61630eb8e2/FLAGd57449234 [2021-11-23 03:42:46,298 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 03:42:46,299 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a43b3c29-418a-401f-8abb-001fe42d04c2/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--atm--nicstar.ko-entry_point.cil.out.i [2021-11-23 03:42:46,347 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a43b3c29-418a-401f-8abb-001fe42d04c2/bin/utaipan-EQgc7hIp5V/data/9681dc69f/225bde80dc06416bba14de61630eb8e2/FLAGd57449234 [2021-11-23 03:42:46,693 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a43b3c29-418a-401f-8abb-001fe42d04c2/bin/utaipan-EQgc7hIp5V/data/9681dc69f/225bde80dc06416bba14de61630eb8e2 [2021-11-23 03:42:46,696 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 03:42:46,698 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 03:42:46,699 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 03:42:46,700 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 03:42:46,704 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 03:42:46,705 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:42:46" (1/1) ... [2021-11-23 03:42:46,706 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@204afb1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:42:46, skipping insertion in model container [2021-11-23 03:42:46,707 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:42:46" (1/1) ... [2021-11-23 03:42:46,715 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 03:42:46,898 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 03:42:49,894 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a43b3c29-418a-401f-8abb-001fe42d04c2/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--atm--nicstar.ko-entry_point.cil.out.i[321673,321686] [2021-11-23 03:42:49,957 WARN L610 FunctionHandler]: implicit declaration of function ldv_xmalloc [2021-11-23 03:42:49,973 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 03:42:50,009 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 03:42:50,744 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a43b3c29-418a-401f-8abb-001fe42d04c2/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--atm--nicstar.ko-entry_point.cil.out.i[321673,321686] [2021-11-23 03:42:50,760 WARN L610 FunctionHandler]: implicit declaration of function ldv_xmalloc [2021-11-23 03:42:50,765 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 03:42:50,891 INFO L208 MainTranslator]: Completed translation [2021-11-23 03:42:50,892 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:42:50 WrapperNode [2021-11-23 03:42:50,892 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 03:42:50,895 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 03:42:50,895 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 03:42:50,895 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 03:42:50,905 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:42:50" (1/1) ... [2021-11-23 03:42:51,030 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:42:50" (1/1) ... [2021-11-23 03:42:51,424 INFO L137 Inliner]: procedures = 252, calls = 2297, calls flagged for inlining = 114, calls inlined = 111, statements flattened = 6001 [2021-11-23 03:42:51,425 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 03:42:51,429 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 03:42:51,429 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 03:42:51,429 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 03:42:51,447 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:42:50" (1/1) ... [2021-11-23 03:42:51,448 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:42:50" (1/1) ... [2021-11-23 03:42:51,513 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:42:50" (1/1) ... [2021-11-23 03:42:51,514 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:42:50" (1/1) ... [2021-11-23 03:42:51,755 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:42:50" (1/1) ... [2021-11-23 03:42:51,781 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:42:50" (1/1) ... [2021-11-23 03:42:51,869 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:42:50" (1/1) ... [2021-11-23 03:42:51,902 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 03:42:51,904 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 03:42:51,904 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 03:42:51,904 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 03:42:51,905 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:42:50" (1/1) ... [2021-11-23 03:42:51,914 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 03:42:51,927 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a43b3c29-418a-401f-8abb-001fe42d04c2/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 03:42:51,943 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a43b3c29-418a-401f-8abb-001fe42d04c2/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 03:42:51,960 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a43b3c29-418a-401f-8abb-001fe42d04c2/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 03:42:51,994 INFO L130 BoogieDeclarations]: Found specification of procedure atm_charge [2021-11-23 03:42:51,994 INFO L138 BoogieDeclarations]: Found implementation of procedure atm_charge [2021-11-23 03:42:51,994 INFO L130 BoogieDeclarations]: Found specification of procedure skb_dequeue [2021-11-23 03:42:51,994 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_dequeue [2021-11-23 03:42:51,994 INFO L130 BoogieDeclarations]: Found specification of procedure process_tsq [2021-11-23 03:42:51,995 INFO L138 BoogieDeclarations]: Found implementation of procedure process_tsq [2021-11-23 03:42:51,995 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-23 03:42:51,995 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_skb [2021-11-23 03:42:51,995 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_skb [2021-11-23 03:42:51,995 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-23 03:42:51,996 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-23 03:42:51,996 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-23 03:42:51,996 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-23 03:42:51,996 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-23 03:42:51,996 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_head_init [2021-11-23 03:42:51,996 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_head_init [2021-11-23 03:42:51,997 INFO L130 BoogieDeclarations]: Found specification of procedure ns_open [2021-11-23 03:42:51,997 INFO L138 BoogieDeclarations]: Found implementation of procedure ns_open [2021-11-23 03:42:51,997 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2021-11-23 03:42:51,997 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2021-11-23 03:42:51,997 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2021-11-23 03:42:51,998 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2021-11-23 03:42:51,998 INFO L130 BoogieDeclarations]: Found specification of procedure ns_read_sram [2021-11-23 03:42:51,998 INFO L138 BoogieDeclarations]: Found implementation of procedure ns_read_sram [2021-11-23 03:42:51,998 INFO L130 BoogieDeclarations]: Found specification of procedure get_scq [2021-11-23 03:42:51,998 INFO L138 BoogieDeclarations]: Found implementation of procedure get_scq [2021-11-23 03:42:51,998 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-23 03:42:51,999 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-23 03:42:51,999 INFO L130 BoogieDeclarations]: Found specification of procedure recycle_rx_buf [2021-11-23 03:42:51,999 INFO L138 BoogieDeclarations]: Found implementation of procedure recycle_rx_buf [2021-11-23 03:42:51,999 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2021-11-23 03:42:51,999 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2021-11-23 03:42:52,000 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-11-23 03:42:52,000 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-11-23 03:42:52,000 INFO L130 BoogieDeclarations]: Found specification of procedure __net_timestamp [2021-11-23 03:42:52,000 INFO L138 BoogieDeclarations]: Found implementation of procedure __net_timestamp [2021-11-23 03:42:52,000 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-11-23 03:42:52,001 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-11-23 03:42:52,001 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2021-11-23 03:42:52,001 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2021-11-23 03:42:52,001 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-23 03:42:52,001 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-23 03:42:52,001 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-23 03:42:52,002 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-23 03:42:52,002 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-11-23 03:42:52,002 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-11-23 03:42:52,002 INFO L130 BoogieDeclarations]: Found specification of procedure ns_ioctl [2021-11-23 03:42:52,002 INFO L138 BoogieDeclarations]: Found implementation of procedure ns_ioctl [2021-11-23 03:42:52,003 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_single_attrs [2021-11-23 03:42:52,003 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_single_attrs [2021-11-23 03:42:52,003 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 03:42:52,003 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-11-23 03:42:52,003 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-11-23 03:42:52,004 INFO L130 BoogieDeclarations]: Found specification of procedure process_rsq [2021-11-23 03:42:52,004 INFO L138 BoogieDeclarations]: Found implementation of procedure process_rsq [2021-11-23 03:42:52,004 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-23 03:42:52,004 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-23 03:42:52,004 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2021-11-23 03:42:52,005 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2021-11-23 03:42:52,005 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-11-23 03:42:52,005 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-11-23 03:42:52,005 INFO L130 BoogieDeclarations]: Found specification of procedure __dev_alloc_skb [2021-11-23 03:42:52,005 INFO L138 BoogieDeclarations]: Found implementation of procedure __dev_alloc_skb [2021-11-23 03:42:52,006 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 03:42:52,006 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2021-11-23 03:42:52,006 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2021-11-23 03:42:52,006 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_add [2021-11-23 03:42:52,006 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_add [2021-11-23 03:42:52,007 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-23 03:42:52,007 INFO L130 BoogieDeclarations]: Found specification of procedure dequeue_sm_buf [2021-11-23 03:42:52,007 INFO L138 BoogieDeclarations]: Found implementation of procedure dequeue_sm_buf [2021-11-23 03:42:52,007 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2021-11-23 03:42:52,007 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2021-11-23 03:42:52,007 INFO L130 BoogieDeclarations]: Found specification of procedure __might_fault [2021-11-23 03:42:52,008 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_fault [2021-11-23 03:42:52,008 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-11-23 03:42:52,008 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-11-23 03:42:52,008 INFO L130 BoogieDeclarations]: Found specification of procedure push_rxbufs [2021-11-23 03:42:52,008 INFO L138 BoogieDeclarations]: Found implementation of procedure push_rxbufs [2021-11-23 03:42:52,008 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-23 03:42:52,009 INFO L130 BoogieDeclarations]: Found specification of procedure ns_phy_get [2021-11-23 03:42:52,009 INFO L138 BoogieDeclarations]: Found implementation of procedure ns_phy_get [2021-11-23 03:42:52,009 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-11-23 03:42:52,009 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-11-23 03:42:52,009 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-11-23 03:42:52,010 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-11-23 03:42:52,010 INFO L130 BoogieDeclarations]: Found specification of procedure skb_copy_from_linear_data [2021-11-23 03:42:52,010 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_copy_from_linear_data [2021-11-23 03:42:52,010 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-23 03:42:52,010 INFO L130 BoogieDeclarations]: Found specification of procedure ns_close [2021-11-23 03:42:52,011 INFO L138 BoogieDeclarations]: Found implementation of procedure ns_close [2021-11-23 03:42:52,011 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2021-11-23 03:42:52,011 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2021-11-23 03:42:52,011 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2021-11-23 03:42:52,011 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2021-11-23 03:42:52,011 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-23 03:42:52,012 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-11-23 03:42:52,012 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-11-23 03:42:52,012 INFO L130 BoogieDeclarations]: Found specification of procedure nicstar_read_eprom [2021-11-23 03:42:52,012 INFO L138 BoogieDeclarations]: Found implementation of procedure nicstar_read_eprom [2021-11-23 03:42:52,012 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-23 03:42:52,012 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-23 03:42:52,013 INFO L130 BoogieDeclarations]: Found specification of procedure ns_phy_put [2021-11-23 03:42:52,013 INFO L138 BoogieDeclarations]: Found implementation of procedure ns_phy_put [2021-11-23 03:42:52,013 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-11-23 03:42:52,013 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-11-23 03:42:52,013 INFO L130 BoogieDeclarations]: Found specification of procedure recycle_iov_buf [2021-11-23 03:42:52,014 INFO L138 BoogieDeclarations]: Found implementation of procedure recycle_iov_buf [2021-11-23 03:42:52,014 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait_event [2021-11-23 03:42:52,014 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait_event [2021-11-23 03:42:52,014 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-23 03:42:52,014 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-23 03:42:52,015 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 03:42:52,015 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-11-23 03:42:52,015 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-11-23 03:42:52,015 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_irq_1 [2021-11-23 03:42:52,015 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_irq_1 [2021-11-23 03:42:52,015 INFO L130 BoogieDeclarations]: Found specification of procedure ns_send [2021-11-23 03:42:52,016 INFO L138 BoogieDeclarations]: Found implementation of procedure ns_send [2021-11-23 03:42:52,016 INFO L130 BoogieDeclarations]: Found specification of procedure __udelay [2021-11-23 03:42:52,016 INFO L138 BoogieDeclarations]: Found implementation of procedure __udelay [2021-11-23 03:42:52,016 INFO L130 BoogieDeclarations]: Found specification of procedure dev_alloc_skb [2021-11-23 03:42:52,016 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_alloc_skb [2021-11-23 03:42:52,017 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2021-11-23 03:42:52,017 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2021-11-23 03:42:52,017 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-23 03:42:52,017 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-23 03:42:52,017 INFO L130 BoogieDeclarations]: Found specification of procedure __read_once_size [2021-11-23 03:42:52,017 INFO L138 BoogieDeclarations]: Found implementation of procedure __read_once_size [2021-11-23 03:42:52,018 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2021-11-23 03:42:52,018 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2021-11-23 03:42:52,018 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-23 03:42:52,018 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2021-11-23 03:42:52,018 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2021-11-23 03:42:52,018 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2021-11-23 03:42:52,019 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2021-11-23 03:42:52,019 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_single_attrs [2021-11-23 03:42:52,019 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_single_attrs [2021-11-23 03:42:52,019 INFO L130 BoogieDeclarations]: Found specification of procedure idr_find [2021-11-23 03:42:52,019 INFO L138 BoogieDeclarations]: Found implementation of procedure idr_find [2021-11-23 03:42:52,019 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 03:42:52,020 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~$Pointer$~TO~int [2021-11-23 03:42:52,020 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~$Pointer$~TO~int [2021-11-23 03:42:52,020 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2021-11-23 03:42:52,020 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2021-11-23 03:42:52,020 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-11-23 03:42:52,020 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-11-23 03:42:52,021 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-23 03:42:52,021 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-23 03:42:52,021 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2021-11-23 03:42:52,021 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2021-11-23 03:42:52,021 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_2 [2021-11-23 03:42:52,021 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_2 [2021-11-23 03:42:52,022 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2021-11-23 03:42:52,022 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2021-11-23 03:42:52,022 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-23 03:42:52,022 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-23 03:42:52,022 INFO L130 BoogieDeclarations]: Found specification of procedure free_scq [2021-11-23 03:42:52,022 INFO L138 BoogieDeclarations]: Found implementation of procedure free_scq [2021-11-23 03:42:52,023 INFO L130 BoogieDeclarations]: Found specification of procedure idr_alloc [2021-11-23 03:42:52,023 INFO L138 BoogieDeclarations]: Found implementation of procedure idr_alloc [2021-11-23 03:42:52,023 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reset_tail_pointer [2021-11-23 03:42:52,023 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reset_tail_pointer [2021-11-23 03:42:52,023 INFO L130 BoogieDeclarations]: Found specification of procedure recycle_iovec_rx_bufs [2021-11-23 03:42:52,023 INFO L138 BoogieDeclarations]: Found implementation of procedure recycle_iovec_rx_bufs [2021-11-23 03:42:52,024 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_tail [2021-11-23 03:42:52,024 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_tail [2021-11-23 03:42:52,024 INFO L130 BoogieDeclarations]: Found specification of procedure nicstar_remove_one [2021-11-23 03:42:52,024 INFO L138 BoogieDeclarations]: Found implementation of procedure nicstar_remove_one [2021-11-23 03:42:52,024 INFO L130 BoogieDeclarations]: Found specification of procedure skb_unlink [2021-11-23 03:42:52,024 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_unlink [2021-11-23 03:42:52,025 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2021-11-23 03:42:52,025 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2021-11-23 03:42:52,025 INFO L130 BoogieDeclarations]: Found specification of procedure dma_alloc_attrs [2021-11-23 03:42:52,025 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_alloc_attrs [2021-11-23 03:42:52,025 INFO L130 BoogieDeclarations]: Found specification of procedure ns_init_card_error [2021-11-23 03:42:52,025 INFO L138 BoogieDeclarations]: Found implementation of procedure ns_init_card_error [2021-11-23 03:42:52,026 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2021-11-23 03:42:52,026 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2021-11-23 03:42:52,026 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2021-11-23 03:42:52,026 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2021-11-23 03:42:52,026 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-11-23 03:42:52,026 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-11-23 03:42:52,026 INFO L130 BoogieDeclarations]: Found specification of procedure ns_write_sram [2021-11-23 03:42:52,027 INFO L138 BoogieDeclarations]: Found implementation of procedure ns_write_sram [2021-11-23 03:42:52,027 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout [2021-11-23 03:42:52,027 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout [2021-11-23 03:42:52,027 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 03:42:52,027 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2021-11-23 03:42:52,027 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2021-11-23 03:42:52,028 INFO L130 BoogieDeclarations]: Found specification of procedure skb_tail_pointer [2021-11-23 03:42:52,028 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_tail_pointer [2021-11-23 03:42:52,028 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2021-11-23 03:42:52,028 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2021-11-23 03:42:52,028 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 03:42:52,029 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 03:42:52,029 INFO L130 BoogieDeclarations]: Found specification of procedure preempt_count [2021-11-23 03:42:52,029 INFO L138 BoogieDeclarations]: Found implementation of procedure preempt_count [2021-11-23 03:42:52,880 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 03:42:52,884 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 03:42:54,151 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-23 03:43:00,707 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 03:43:02,496 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 03:43:02,497 INFO L301 CfgBuilder]: Removed 4 assume(true) statements. [2021-11-23 03:43:02,505 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:43:02 BoogieIcfgContainer [2021-11-23 03:43:02,505 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 03:43:02,509 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 03:43:02,509 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 03:43:02,514 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 03:43:02,514 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 03:42:46" (1/3) ... [2021-11-23 03:43:02,515 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d95e6be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:43:02, skipping insertion in model container [2021-11-23 03:43:02,516 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:42:50" (2/3) ... [2021-11-23 03:43:02,516 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d95e6be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:43:02, skipping insertion in model container [2021-11-23 03:43:02,517 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:43:02" (3/3) ... [2021-11-23 03:43:02,518 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--atm--nicstar.ko-entry_point.cil.out.i [2021-11-23 03:43:02,526 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 03:43:02,526 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-23 03:43:02,620 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 03:43:02,640 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 [2021-11-23 03:43:02,642 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-23 03:43:02,736 INFO L276 IsEmpty]: Start isEmpty. Operand has 1656 states, 1000 states have (on average 1.348) internal successors, (1348), 1071 states have internal predecessors, (1348), 569 states have call successors, (569), 90 states have call predecessors, (569), 89 states have return successors, (563), 552 states have call predecessors, (563), 563 states have call successors, (563) [2021-11-23 03:43:02,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-11-23 03:43:02,761 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:43:02,762 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:43:02,763 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 03:43:02,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:43:02,769 INFO L85 PathProgramCache]: Analyzing trace with hash -1101798564, now seen corresponding path program 1 times [2021-11-23 03:43:02,784 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:43:02,785 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2095069466] [2021-11-23 03:43:02,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:43:02,788 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:43:03,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:43:03,626 INFO L134 CoverageAnalysis]: Checked inductivity of 142 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 142 trivial. 0 not checked. [2021-11-23 03:43:03,631 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:43:03,632 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2095069466] [2021-11-23 03:43:03,633 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2095069466] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:43:03,633 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:43:03,634 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 03:43:03,639 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [27618283] [2021-11-23 03:43:03,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:43:03,646 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 03:43:03,647 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:43:03,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 03:43:03,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 03:43:03,710 INFO L87 Difference]: Start difference. First operand has 1656 states, 1000 states have (on average 1.348) internal successors, (1348), 1071 states have internal predecessors, (1348), 569 states have call successors, (569), 90 states have call predecessors, (569), 89 states have return successors, (563), 552 states have call predecessors, (563), 563 states have call successors, (563) Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2021-11-23 03:43:08,914 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:43:11,835 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:43:14,246 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:43:14,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:43:14,455 INFO L93 Difference]: Finished difference Result 4456 states and 6737 transitions. [2021-11-23 03:43:14,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 03:43:14,458 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 114 [2021-11-23 03:43:14,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:43:14,499 INFO L225 Difference]: With dead ends: 4456 [2021-11-23 03:43:14,499 INFO L226 Difference]: Without dead ends: 2800 [2021-11-23 03:43:14,522 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 03:43:14,525 INFO L933 BasicCegarLoop]: 2730 mSDtfsCounter, 1733 mSDsluCounter, 2408 mSDsCounter, 0 mSdLazyCounter, 401 mSolverCounterSat, 4 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1751 SdHoareTripleChecker+Valid, 4956 SdHoareTripleChecker+Invalid, 408 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 401 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.3s IncrementalHoareTripleChecker+Time [2021-11-23 03:43:14,526 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1751 Valid, 4956 Invalid, 408 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4 Valid, 401 Invalid, 3 Unknown, 0 Unchecked, 10.3s Time] [2021-11-23 03:43:14,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2800 states. [2021-11-23 03:43:14,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2800 to 2795. [2021-11-23 03:43:14,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2795 states, 1693 states have (on average 1.3408151210868282) internal successors, (2270), 1799 states have internal predecessors, (2270), 934 states have call successors, (934), 169 states have call predecessors, (934), 167 states have return successors, (935), 911 states have call predecessors, (935), 933 states have call successors, (935) [2021-11-23 03:43:14,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2795 states to 2795 states and 4139 transitions. [2021-11-23 03:43:14,803 INFO L78 Accepts]: Start accepts. Automaton has 2795 states and 4139 transitions. Word has length 114 [2021-11-23 03:43:14,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:43:14,804 INFO L470 AbstractCegarLoop]: Abstraction has 2795 states and 4139 transitions. [2021-11-23 03:43:14,804 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2021-11-23 03:43:14,805 INFO L276 IsEmpty]: Start isEmpty. Operand 2795 states and 4139 transitions. [2021-11-23 03:43:14,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2021-11-23 03:43:14,810 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:43:14,811 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:43:14,811 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-23 03:43:14,811 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 03:43:14,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:43:14,812 INFO L85 PathProgramCache]: Analyzing trace with hash 613217555, now seen corresponding path program 1 times [2021-11-23 03:43:14,812 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:43:14,813 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [353740895] [2021-11-23 03:43:14,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:43:14,813 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:43:14,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:43:15,047 INFO L134 CoverageAnalysis]: Checked inductivity of 142 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 142 trivial. 0 not checked. [2021-11-23 03:43:15,048 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:43:15,048 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [353740895] [2021-11-23 03:43:15,048 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [353740895] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:43:15,048 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:43:15,048 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 03:43:15,048 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [320668988] [2021-11-23 03:43:15,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:43:15,050 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 03:43:15,050 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:43:15,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 03:43:15,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 03:43:15,051 INFO L87 Difference]: Start difference. First operand 2795 states and 4139 transitions. Second operand has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-11-23 03:43:18,929 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:43:21,157 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:43:24,187 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:43:26,037 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:43:26,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:43:26,351 INFO L93 Difference]: Finished difference Result 7505 states and 11085 transitions. [2021-11-23 03:43:26,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 03:43:26,352 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 124 [2021-11-23 03:43:26,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:43:26,398 INFO L225 Difference]: With dead ends: 7505 [2021-11-23 03:43:26,398 INFO L226 Difference]: Without dead ends: 4744 [2021-11-23 03:43:26,421 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 03:43:26,422 INFO L933 BasicCegarLoop]: 2627 mSDtfsCounter, 1754 mSDsluCounter, 2301 mSDsCounter, 0 mSdLazyCounter, 405 mSolverCounterSat, 4 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1754 SdHoareTripleChecker+Valid, 4747 SdHoareTripleChecker+Invalid, 412 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 405 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.0s IncrementalHoareTripleChecker+Time [2021-11-23 03:43:26,423 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1754 Valid, 4747 Invalid, 412 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 405 Invalid, 3 Unknown, 0 Unchecked, 11.0s Time] [2021-11-23 03:43:26,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4744 states. [2021-11-23 03:43:26,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4744 to 4733. [2021-11-23 03:43:26,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4733 states, 2863 states have (on average 1.3311212015368494) internal successors, (3811), 3048 states have internal predecessors, (3811), 1576 states have call successors, (1576), 296 states have call predecessors, (1576), 293 states have return successors, (1588), 1529 states have call predecessors, (1588), 1575 states have call successors, (1588) [2021-11-23 03:43:26,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4733 states to 4733 states and 6975 transitions. [2021-11-23 03:43:26,712 INFO L78 Accepts]: Start accepts. Automaton has 4733 states and 6975 transitions. Word has length 124 [2021-11-23 03:43:26,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:43:26,714 INFO L470 AbstractCegarLoop]: Abstraction has 4733 states and 6975 transitions. [2021-11-23 03:43:26,714 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-11-23 03:43:26,714 INFO L276 IsEmpty]: Start isEmpty. Operand 4733 states and 6975 transitions. [2021-11-23 03:43:26,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2021-11-23 03:43:26,726 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:43:26,727 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 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] [2021-11-23 03:43:26,727 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-23 03:43:26,727 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 03:43:26,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:43:26,728 INFO L85 PathProgramCache]: Analyzing trace with hash -1144981713, now seen corresponding path program 1 times [2021-11-23 03:43:26,728 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:43:26,729 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [929772083] [2021-11-23 03:43:26,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:43:26,730 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:43:26,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:43:27,025 INFO L134 CoverageAnalysis]: Checked inductivity of 196 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 196 trivial. 0 not checked. [2021-11-23 03:43:27,025 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:43:27,026 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [929772083] [2021-11-23 03:43:27,026 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [929772083] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:43:27,026 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:43:27,026 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 03:43:27,026 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1913489573] [2021-11-23 03:43:27,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:43:27,028 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 03:43:27,028 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:43:27,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 03:43:27,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 03:43:27,030 INFO L87 Difference]: Start difference. First operand 4733 states and 6975 transitions. Second operand has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 3 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-11-23 03:43:29,529 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:43:32,009 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.98s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:43:33,095 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:43:34,427 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:43:36,151 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.63s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:43:39,282 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:43:40,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:43:40,321 INFO L93 Difference]: Finished difference Result 7494 states and 11109 transitions. [2021-11-23 03:43:40,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 03:43:40,322 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 3 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 137 [2021-11-23 03:43:40,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:43:40,403 INFO L225 Difference]: With dead ends: 7494 [2021-11-23 03:43:40,403 INFO L226 Difference]: Without dead ends: 7491 [2021-11-23 03:43:40,412 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 03:43:40,414 INFO L933 BasicCegarLoop]: 2837 mSDtfsCounter, 2182 mSDsluCounter, 1313 mSDsCounter, 0 mSdLazyCounter, 345 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2182 SdHoareTripleChecker+Valid, 4038 SdHoareTripleChecker+Invalid, 347 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 345 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.0s IncrementalHoareTripleChecker+Time [2021-11-23 03:43:40,416 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2182 Valid, 4038 Invalid, 347 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 345 Invalid, 1 Unknown, 0 Unchecked, 13.0s Time] [2021-11-23 03:43:40,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7491 states. [2021-11-23 03:43:40,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7491 to 7425. [2021-11-23 03:43:40,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7425 states, 4433 states have (on average 1.3194225129709) internal successors, (5849), 4730 states have internal predecessors, (5849), 2486 states have call successors, (2486), 510 states have call predecessors, (2486), 505 states have return successors, (2656), 2393 states have call predecessors, (2656), 2485 states have call successors, (2656) [2021-11-23 03:43:40,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7425 states to 7425 states and 10991 transitions. [2021-11-23 03:43:40,892 INFO L78 Accepts]: Start accepts. Automaton has 7425 states and 10991 transitions. Word has length 137 [2021-11-23 03:43:40,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:43:40,893 INFO L470 AbstractCegarLoop]: Abstraction has 7425 states and 10991 transitions. [2021-11-23 03:43:40,894 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 3 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-11-23 03:43:40,894 INFO L276 IsEmpty]: Start isEmpty. Operand 7425 states and 10991 transitions. [2021-11-23 03:43:40,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2021-11-23 03:43:40,897 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:43:40,898 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:43:40,898 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-23 03:43:40,898 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 03:43:40,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:43:40,899 INFO L85 PathProgramCache]: Analyzing trace with hash 810772507, now seen corresponding path program 1 times [2021-11-23 03:43:40,899 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:43:40,899 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [515218334] [2021-11-23 03:43:40,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:43:40,900 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:43:41,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:43:41,218 INFO L134 CoverageAnalysis]: Checked inductivity of 142 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 142 trivial. 0 not checked. [2021-11-23 03:43:41,219 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:43:41,219 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [515218334] [2021-11-23 03:43:41,219 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [515218334] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:43:41,219 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:43:41,219 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-23 03:43:41,220 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [413661314] [2021-11-23 03:43:41,220 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:43:41,220 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-23 03:43:41,220 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:43:41,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-23 03:43:41,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-23 03:43:41,221 INFO L87 Difference]: Start difference. First operand 7425 states and 10991 transitions. Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 3 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2021-11-23 03:43:44,032 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:43:46,126 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:43:48,619 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:43:50,640 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:43:51,934 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:43:54,623 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:43:56,567 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:44:00,743 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:44:03,206 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:44:03,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:44:03,263 INFO L93 Difference]: Finished difference Result 22162 states and 32826 transitions. [2021-11-23 03:44:03,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-23 03:44:03,265 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 3 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 142 [2021-11-23 03:44:03,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:44:03,416 INFO L225 Difference]: With dead ends: 22162 [2021-11-23 03:44:03,417 INFO L226 Difference]: Without dead ends: 14771 [2021-11-23 03:44:03,496 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-23 03:44:03,497 INFO L933 BasicCegarLoop]: 2769 mSDtfsCounter, 2281 mSDsluCounter, 8299 mSDsCounter, 0 mSdLazyCounter, 777 mSolverCounterSat, 7 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2283 SdHoareTripleChecker+Valid, 10506 SdHoareTripleChecker+Invalid, 787 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 777 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.4s IncrementalHoareTripleChecker+Time [2021-11-23 03:44:03,497 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2283 Valid, 10506 Invalid, 787 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 777 Invalid, 3 Unknown, 0 Unchecked, 21.4s Time] [2021-11-23 03:44:03,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14771 states. [2021-11-23 03:44:04,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14771 to 14756. [2021-11-23 03:44:04,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14756 states, 8817 states have (on average 1.3191561755699217) internal successors, (11631), 9414 states have internal predecessors, (11631), 4925 states have call successors, (4925), 1018 states have call predecessors, (4925), 1013 states have return successors, (5288), 4740 states have call predecessors, (5288), 4924 states have call successors, (5288) [2021-11-23 03:44:04,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14756 states to 14756 states and 21844 transitions. [2021-11-23 03:44:04,511 INFO L78 Accepts]: Start accepts. Automaton has 14756 states and 21844 transitions. Word has length 142 [2021-11-23 03:44:04,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:44:04,512 INFO L470 AbstractCegarLoop]: Abstraction has 14756 states and 21844 transitions. [2021-11-23 03:44:04,513 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 3 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2021-11-23 03:44:04,513 INFO L276 IsEmpty]: Start isEmpty. Operand 14756 states and 21844 transitions. [2021-11-23 03:44:04,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2021-11-23 03:44:04,518 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:44:04,518 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:44:04,518 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-23 03:44:04,519 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 03:44:04,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:44:04,522 INFO L85 PathProgramCache]: Analyzing trace with hash 24867262, now seen corresponding path program 1 times [2021-11-23 03:44:04,522 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:44:04,522 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1984684516] [2021-11-23 03:44:04,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:44:04,523 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:44:04,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:44:04,719 INFO L134 CoverageAnalysis]: Checked inductivity of 142 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 142 trivial. 0 not checked. [2021-11-23 03:44:04,720 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:44:04,720 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1984684516] [2021-11-23 03:44:04,720 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1984684516] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:44:04,720 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:44:04,720 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-23 03:44:04,721 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1394269575] [2021-11-23 03:44:04,721 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:44:04,721 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-23 03:44:04,722 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:44:04,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-23 03:44:04,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-23 03:44:04,723 INFO L87 Difference]: Start difference. First operand 14756 states and 21844 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 3 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2021-11-23 03:44:06,984 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:44:09,009 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:44:11,036 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:44:13,226 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:44:14,364 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:44:17,332 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:44:19,683 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:44:20,942 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:44:23,339 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:44:28,805 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:44:30,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:44:30,792 INFO L93 Difference]: Finished difference Result 33166 states and 49028 transitions. [2021-11-23 03:44:30,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-23 03:44:30,793 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 3 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 140 [2021-11-23 03:44:30,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:44:30,946 INFO L225 Difference]: With dead ends: 33166 [2021-11-23 03:44:30,946 INFO L226 Difference]: Without dead ends: 18444 [2021-11-23 03:44:31,028 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-23 03:44:31,029 INFO L933 BasicCegarLoop]: 2638 mSDtfsCounter, 1735 mSDsluCounter, 8039 mSDsCounter, 0 mSdLazyCounter, 775 mSolverCounterSat, 7 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1735 SdHoareTripleChecker+Valid, 10113 SdHoareTripleChecker+Invalid, 786 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 775 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 25.4s IncrementalHoareTripleChecker+Time [2021-11-23 03:44:31,030 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1735 Valid, 10113 Invalid, 786 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 775 Invalid, 4 Unknown, 0 Unchecked, 25.4s Time] [2021-11-23 03:44:31,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18444 states. [2021-11-23 03:44:31,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18444 to 18413. [2021-11-23 03:44:31,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18413 states, 11002 states have (on average 1.3163061261588802) internal successors, (14482), 11746 states have internal predecessors, (14482), 6127 states have call successors, (6127), 1290 states have call predecessors, (6127), 1283 states have return successors, (6568), 5896 states have call predecessors, (6568), 6126 states have call successors, (6568) [2021-11-23 03:44:32,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18413 states to 18413 states and 27177 transitions. [2021-11-23 03:44:32,204 INFO L78 Accepts]: Start accepts. Automaton has 18413 states and 27177 transitions. Word has length 140 [2021-11-23 03:44:32,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:44:32,206 INFO L470 AbstractCegarLoop]: Abstraction has 18413 states and 27177 transitions. [2021-11-23 03:44:32,206 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 3 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2021-11-23 03:44:32,206 INFO L276 IsEmpty]: Start isEmpty. Operand 18413 states and 27177 transitions. [2021-11-23 03:44:32,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2021-11-23 03:44:32,210 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:44:32,210 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:44:32,210 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-23 03:44:32,211 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 03:44:32,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:44:32,212 INFO L85 PathProgramCache]: Analyzing trace with hash 482125379, now seen corresponding path program 1 times [2021-11-23 03:44:32,212 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:44:32,212 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [780425423] [2021-11-23 03:44:32,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:44:32,212 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:44:32,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:44:32,404 INFO L134 CoverageAnalysis]: Checked inductivity of 142 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 142 trivial. 0 not checked. [2021-11-23 03:44:32,405 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:44:32,405 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [780425423] [2021-11-23 03:44:32,405 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [780425423] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:44:32,405 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:44:32,406 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-23 03:44:32,406 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [47003568] [2021-11-23 03:44:32,406 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:44:32,407 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-23 03:44:32,407 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:44:32,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-23 03:44:32,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-23 03:44:32,408 INFO L87 Difference]: Start difference. First operand 18413 states and 27177 transitions. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 3 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2021-11-23 03:44:34,224 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.69s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:44:37,136 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:44:42,839 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:44:45,520 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:44:47,778 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:44:52,484 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:44:54,225 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.74s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:44:55,553 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:44:57,051 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.50s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:44:57,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:44:57,980 INFO L93 Difference]: Finished difference Result 40300 states and 59456 transitions. [2021-11-23 03:44:57,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-23 03:44:57,990 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 3 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 139 [2021-11-23 03:44:57,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:44:58,172 INFO L225 Difference]: With dead ends: 40300 [2021-11-23 03:44:58,172 INFO L226 Difference]: Without dead ends: 21921 [2021-11-23 03:44:58,305 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-23 03:44:58,308 INFO L933 BasicCegarLoop]: 2924 mSDtfsCounter, 1734 mSDsluCounter, 8661 mSDsCounter, 0 mSdLazyCounter, 855 mSolverCounterSat, 7 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1735 SdHoareTripleChecker+Valid, 10973 SdHoareTripleChecker+Invalid, 865 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 855 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.8s IncrementalHoareTripleChecker+Time [2021-11-23 03:44:58,308 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1735 Valid, 10973 Invalid, 865 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 855 Invalid, 3 Unknown, 0 Unchecked, 24.8s Time] [2021-11-23 03:44:58,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21921 states. [2021-11-23 03:45:00,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21921 to 21856. [2021-11-23 03:45:00,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21856 states, 13051 states have (on average 1.3150716420197686) internal successors, (17163), 13940 states have internal predecessors, (17163), 7277 states have call successors, (7277), 1536 states have call predecessors, (7277), 1527 states have return successors, (7800), 6998 states have call predecessors, (7800), 7276 states have call successors, (7800) [2021-11-23 03:45:00,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21856 states to 21856 states and 32240 transitions. [2021-11-23 03:45:00,500 INFO L78 Accepts]: Start accepts. Automaton has 21856 states and 32240 transitions. Word has length 139 [2021-11-23 03:45:00,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:45:00,500 INFO L470 AbstractCegarLoop]: Abstraction has 21856 states and 32240 transitions. [2021-11-23 03:45:00,501 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 3 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2021-11-23 03:45:00,501 INFO L276 IsEmpty]: Start isEmpty. Operand 21856 states and 32240 transitions. [2021-11-23 03:45:00,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2021-11-23 03:45:00,530 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:45:00,530 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:45:00,530 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-23 03:45:00,531 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 03:45:00,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:45:00,531 INFO L85 PathProgramCache]: Analyzing trace with hash -1031615552, now seen corresponding path program 1 times [2021-11-23 03:45:00,531 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:45:00,531 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [98375206] [2021-11-23 03:45:00,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:45:00,532 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:45:00,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:45:01,001 INFO L134 CoverageAnalysis]: Checked inductivity of 142 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 142 trivial. 0 not checked. [2021-11-23 03:45:01,002 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:45:01,002 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [98375206] [2021-11-23 03:45:01,002 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [98375206] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:45:01,002 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:45:01,003 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-23 03:45:01,003 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2029904613] [2021-11-23 03:45:01,003 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:45:01,004 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-23 03:45:01,004 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:45:01,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-23 03:45:01,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-23 03:45:01,005 INFO L87 Difference]: Start difference. First operand 21856 states and 32240 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 3 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2021-11-23 03:45:05,367 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:45:09,349 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:45:11,608 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:45:13,959 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:45:18,052 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.85s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:45:20,208 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:45:21,555 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:45:22,658 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:45:23,844 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:45:25,433 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:45:26,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:45:26,283 INFO L93 Difference]: Finished difference Result 42256 states and 62248 transitions. [2021-11-23 03:45:26,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-23 03:45:26,284 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 3 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 141 [2021-11-23 03:45:26,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:45:26,473 INFO L225 Difference]: With dead ends: 42256 [2021-11-23 03:45:26,473 INFO L226 Difference]: Without dead ends: 20811 [2021-11-23 03:45:26,618 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-23 03:45:26,619 INFO L933 BasicCegarLoop]: 2638 mSDtfsCounter, 1733 mSDsluCounter, 8037 mSDsCounter, 0 mSdLazyCounter, 774 mSolverCounterSat, 7 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1733 SdHoareTripleChecker+Valid, 10113 SdHoareTripleChecker+Invalid, 784 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 774 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.4s IncrementalHoareTripleChecker+Time [2021-11-23 03:45:26,620 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1733 Valid, 10113 Invalid, 784 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 774 Invalid, 3 Unknown, 0 Unchecked, 24.4s Time] [2021-11-23 03:45:26,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20811 states. [2021-11-23 03:45:27,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20811 to 20772. [2021-11-23 03:45:27,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20772 states, 12396 states have (on average 1.3130041949015812) internal successors, (16276), 13245 states have internal predecessors, (16276), 6904 states have call successors, (6904), 1478 states have call predecessors, (6904), 1471 states have return successors, (7395), 6631 states have call predecessors, (7395), 6903 states have call successors, (7395) [2021-11-23 03:45:27,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20772 states to 20772 states and 30575 transitions. [2021-11-23 03:45:27,973 INFO L78 Accepts]: Start accepts. Automaton has 20772 states and 30575 transitions. Word has length 141 [2021-11-23 03:45:27,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:45:27,978 INFO L470 AbstractCegarLoop]: Abstraction has 20772 states and 30575 transitions. [2021-11-23 03:45:27,978 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 3 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2021-11-23 03:45:27,978 INFO L276 IsEmpty]: Start isEmpty. Operand 20772 states and 30575 transitions. [2021-11-23 03:45:27,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2021-11-23 03:45:27,991 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:45:27,992 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 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] [2021-11-23 03:45:27,992 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-23 03:45:27,992 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 03:45:27,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:45:27,994 INFO L85 PathProgramCache]: Analyzing trace with hash 1603836718, now seen corresponding path program 1 times [2021-11-23 03:45:27,994 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:45:27,994 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1365111688] [2021-11-23 03:45:27,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:45:27,995 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:45:28,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:45:28,266 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2021-11-23 03:45:28,267 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:45:28,267 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1365111688] [2021-11-23 03:45:28,267 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1365111688] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 03:45:28,267 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1664864661] [2021-11-23 03:45:28,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:45:28,268 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 03:45:28,268 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a43b3c29-418a-401f-8abb-001fe42d04c2/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 03:45:28,270 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a43b3c29-418a-401f-8abb-001fe42d04c2/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 03:45:28,285 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a43b3c29-418a-401f-8abb-001fe42d04c2/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-23 03:45:29,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:45:29,181 INFO L263 TraceCheckSpWp]: Trace formula consists of 1737 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-23 03:45:29,199 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 03:45:29,895 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 142 trivial. 0 not checked. [2021-11-23 03:45:29,896 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 03:45:29,896 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1664864661] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:45:29,896 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-23 03:45:29,896 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [8] total 13 [2021-11-23 03:45:29,896 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [469537261] [2021-11-23 03:45:29,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:45:29,897 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-23 03:45:29,897 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:45:29,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-23 03:45:29,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2021-11-23 03:45:29,898 INFO L87 Difference]: Start difference. First operand 20772 states and 30575 transitions. Second operand has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 5 states have internal predecessors, (62), 3 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) [2021-11-23 03:45:33,901 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:45:38,876 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:45:41,635 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:45:42,640 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:45:44,796 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:45:46,768 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:45:47,932 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:45:50,313 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:45:54,945 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:46:01,264 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:46:02,567 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:46:03,690 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:46:05,059 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:46:06,483 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:46:07,652 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:46:10,460 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:46:11,866 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:46:13,460 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:46:14,806 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:46:16,304 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.50s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:46:18,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:46:18,126 INFO L93 Difference]: Finished difference Result 56199 states and 82809 transitions. [2021-11-23 03:46:18,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-23 03:46:18,128 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 5 states have internal predecessors, (62), 3 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) Word has length 152 [2021-11-23 03:46:18,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:46:18,457 INFO L225 Difference]: With dead ends: 56199 [2021-11-23 03:46:18,457 INFO L226 Difference]: Without dead ends: 37810 [2021-11-23 03:46:18,604 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 168 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=68, Invalid=312, Unknown=0, NotChecked=0, Total=380 [2021-11-23 03:46:18,605 INFO L933 BasicCegarLoop]: 3358 mSDtfsCounter, 2224 mSDsluCounter, 16862 mSDsCounter, 0 mSdLazyCounter, 1529 mSolverCounterSat, 6 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 45.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2226 SdHoareTripleChecker+Valid, 19005 SdHoareTripleChecker+Invalid, 1539 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 1529 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 46.6s IncrementalHoareTripleChecker+Time [2021-11-23 03:46:18,605 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2226 Valid, 19005 Invalid, 1539 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 1529 Invalid, 4 Unknown, 0 Unchecked, 46.6s Time] [2021-11-23 03:46:18,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37810 states. [2021-11-23 03:46:20,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37810 to 37671. [2021-11-23 03:46:20,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37671 states, 22498 states have (on average 1.3143390523602099) internal successors, (29570), 24072 states have internal predecessors, (29570), 12501 states have call successors, (12501), 2676 states have call predecessors, (12501), 2671 states have return successors, (13424), 11984 states have call predecessors, (13424), 12500 states have call successors, (13424) [2021-11-23 03:46:21,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37671 states to 37671 states and 55495 transitions. [2021-11-23 03:46:21,189 INFO L78 Accepts]: Start accepts. Automaton has 37671 states and 55495 transitions. Word has length 152 [2021-11-23 03:46:21,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:46:21,194 INFO L470 AbstractCegarLoop]: Abstraction has 37671 states and 55495 transitions. [2021-11-23 03:46:21,194 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 5 states have internal predecessors, (62), 3 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) [2021-11-23 03:46:21,194 INFO L276 IsEmpty]: Start isEmpty. Operand 37671 states and 55495 transitions. [2021-11-23 03:46:21,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2021-11-23 03:46:21,201 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:46:21,201 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 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] [2021-11-23 03:46:21,238 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a43b3c29-418a-401f-8abb-001fe42d04c2/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-23 03:46:21,421 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a43b3c29-418a-401f-8abb-001fe42d04c2/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 03:46:21,422 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 03:46:21,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:46:21,422 INFO L85 PathProgramCache]: Analyzing trace with hash -1916537298, now seen corresponding path program 1 times [2021-11-23 03:46:21,423 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:46:21,423 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [367054148] [2021-11-23 03:46:21,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:46:21,423 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:46:21,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:46:21,687 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 142 trivial. 0 not checked. [2021-11-23 03:46:21,687 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:46:21,687 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [367054148] [2021-11-23 03:46:21,687 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [367054148] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 03:46:21,687 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [60076731] [2021-11-23 03:46:21,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:46:21,688 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 03:46:21,688 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a43b3c29-418a-401f-8abb-001fe42d04c2/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 03:46:21,690 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a43b3c29-418a-401f-8abb-001fe42d04c2/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 03:46:21,708 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a43b3c29-418a-401f-8abb-001fe42d04c2/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-23 03:46:22,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:46:22,687 INFO L263 TraceCheckSpWp]: Trace formula consists of 1739 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-23 03:46:22,706 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 03:46:23,279 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 142 trivial. 0 not checked. [2021-11-23 03:46:23,280 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 03:46:23,280 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [60076731] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:46:23,280 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-23 03:46:23,280 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 14 [2021-11-23 03:46:23,280 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [338479287] [2021-11-23 03:46:23,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:46:23,281 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-23 03:46:23,281 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:46:23,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-23 03:46:23,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2021-11-23 03:46:23,282 INFO L87 Difference]: Start difference. First operand 37671 states and 55495 transitions. Second operand has 7 states, 7 states have (on average 9.0) internal successors, (63), 5 states have internal predecessors, (63), 3 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) [2021-11-23 03:46:28,470 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:46:32,532 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:46:35,046 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:46:41,974 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:46:44,012 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:46:45,935 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.87s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:46:47,367 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:46:49,123 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.76s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:46:50,651 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:46:51,826 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:46:53,163 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:46:58,192 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:47:00,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:47:00,534 INFO L93 Difference]: Finished difference Result 89601 states and 131960 transitions. [2021-11-23 03:47:00,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-23 03:47:00,537 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 5 states have internal predecessors, (63), 3 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) Word has length 153 [2021-11-23 03:47:00,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:47:01,211 INFO L225 Difference]: With dead ends: 89601 [2021-11-23 03:47:01,212 INFO L226 Difference]: Without dead ends: 54313 [2021-11-23 03:47:01,378 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 169 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=70, Invalid=350, Unknown=0, NotChecked=0, Total=420 [2021-11-23 03:47:01,379 INFO L933 BasicCegarLoop]: 3250 mSDtfsCounter, 2088 mSDsluCounter, 16390 mSDsCounter, 0 mSdLazyCounter, 1496 mSolverCounterSat, 6 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 33.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2108 SdHoareTripleChecker+Valid, 18453 SdHoareTripleChecker+Invalid, 1507 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 1496 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 35.1s IncrementalHoareTripleChecker+Time [2021-11-23 03:47:01,380 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2108 Valid, 18453 Invalid, 1507 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 1496 Invalid, 5 Unknown, 0 Unchecked, 35.1s Time] [2021-11-23 03:47:01,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54313 states. [2021-11-23 03:47:03,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54313 to 54140. [2021-11-23 03:47:03,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54140 states, 32370 states have (on average 1.3139017608897128) internal successors, (42531), 34649 states have internal predecessors, (42531), 17895 states have call successors, (17895), 3875 states have call predecessors, (17895), 3874 states have return successors, (19272), 17132 states have call predecessors, (19272), 17894 states have call successors, (19272) [2021-11-23 03:47:04,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54140 states to 54140 states and 79698 transitions. [2021-11-23 03:47:04,590 INFO L78 Accepts]: Start accepts. Automaton has 54140 states and 79698 transitions. Word has length 153 [2021-11-23 03:47:04,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:47:04,590 INFO L470 AbstractCegarLoop]: Abstraction has 54140 states and 79698 transitions. [2021-11-23 03:47:04,590 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 5 states have internal predecessors, (63), 3 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) [2021-11-23 03:47:04,591 INFO L276 IsEmpty]: Start isEmpty. Operand 54140 states and 79698 transitions. [2021-11-23 03:47:04,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2021-11-23 03:47:04,597 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:47:04,598 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 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] [2021-11-23 03:47:04,642 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a43b3c29-418a-401f-8abb-001fe42d04c2/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-23 03:47:04,810 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a43b3c29-418a-401f-8abb-001fe42d04c2/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 03:47:04,811 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 03:47:04,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:47:04,811 INFO L85 PathProgramCache]: Analyzing trace with hash 913495559, now seen corresponding path program 1 times [2021-11-23 03:47:04,812 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:47:04,812 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [782666149] [2021-11-23 03:47:04,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:47:04,812 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:47:04,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:47:05,092 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 142 trivial. 0 not checked. [2021-11-23 03:47:05,093 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:47:05,093 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [782666149] [2021-11-23 03:47:05,093 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [782666149] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 03:47:05,093 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [947806979] [2021-11-23 03:47:05,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:47:05,094 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 03:47:05,094 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a43b3c29-418a-401f-8abb-001fe42d04c2/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 03:47:05,095 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a43b3c29-418a-401f-8abb-001fe42d04c2/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 03:47:05,113 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a43b3c29-418a-401f-8abb-001fe42d04c2/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-23 03:47:06,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:47:06,024 INFO L263 TraceCheckSpWp]: Trace formula consists of 1741 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-23 03:47:06,166 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 03:47:06,675 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 142 trivial. 0 not checked. [2021-11-23 03:47:06,676 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 03:47:06,676 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [947806979] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:47:06,676 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-23 03:47:06,676 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 14 [2021-11-23 03:47:06,677 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [275671709] [2021-11-23 03:47:06,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:47:06,678 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-23 03:47:06,678 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:47:06,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-23 03:47:06,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2021-11-23 03:47:06,679 INFO L87 Difference]: Start difference. First operand 54140 states and 79698 transitions. Second operand has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 5 states have internal predecessors, (64), 3 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) [2021-11-23 03:47:10,423 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:47:14,661 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:47:17,226 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:47:21,551 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:47:24,855 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:47:26,223 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:47:27,873 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:47:29,093 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:47:30,327 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:47:31,789 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:47:33,138 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:47:34,270 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:47:39,276 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:47:40,780 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.50s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:47:42,168 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:47:43,291 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:47:44,353 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:47:46,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:47:46,796 INFO L93 Difference]: Finished difference Result 122605 states and 180510 transitions. [2021-11-23 03:47:46,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-23 03:47:46,798 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 5 states have internal predecessors, (64), 3 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) Word has length 154 [2021-11-23 03:47:46,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:47:47,394 INFO L225 Difference]: With dead ends: 122605 [2021-11-23 03:47:47,394 INFO L226 Difference]: Without dead ends: 70872 [2021-11-23 03:47:47,625 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 170 GetRequests, 151 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=70, Invalid=350, Unknown=0, NotChecked=0, Total=420 [2021-11-23 03:47:47,626 INFO L933 BasicCegarLoop]: 3296 mSDtfsCounter, 2137 mSDsluCounter, 16585 mSDsCounter, 0 mSdLazyCounter, 1511 mSolverCounterSat, 6 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 36.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2155 SdHoareTripleChecker+Valid, 18683 SdHoareTripleChecker+Invalid, 1521 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 1511 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 37.4s IncrementalHoareTripleChecker+Time [2021-11-23 03:47:47,626 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2155 Valid, 18683 Invalid, 1521 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 1511 Invalid, 4 Unknown, 0 Unchecked, 37.4s Time] [2021-11-23 03:47:47,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70872 states. [2021-11-23 03:47:50,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70872 to 68298. [2021-11-23 03:47:50,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68298 states, 40856 states have (on average 1.3150822400626592) internal successors, (53729), 43723 states have internal predecessors, (53729), 22579 states have call successors, (22579), 4871 states have call predecessors, (22579), 4862 states have return successors, (24332), 21620 states have call predecessors, (24332), 22578 states have call successors, (24332) [2021-11-23 03:47:50,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68298 states to 68298 states and 100640 transitions. [2021-11-23 03:47:50,729 INFO L78 Accepts]: Start accepts. Automaton has 68298 states and 100640 transitions. Word has length 154 [2021-11-23 03:47:50,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:47:50,729 INFO L470 AbstractCegarLoop]: Abstraction has 68298 states and 100640 transitions. [2021-11-23 03:47:50,730 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 5 states have internal predecessors, (64), 3 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) [2021-11-23 03:47:50,730 INFO L276 IsEmpty]: Start isEmpty. Operand 68298 states and 100640 transitions. [2021-11-23 03:47:50,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2021-11-23 03:47:50,737 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:47:50,737 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 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] [2021-11-23 03:47:50,767 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a43b3c29-418a-401f-8abb-001fe42d04c2/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-23 03:47:50,945 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a43b3c29-418a-401f-8abb-001fe42d04c2/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 03:47:50,946 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 03:47:50,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:47:50,947 INFO L85 PathProgramCache]: Analyzing trace with hash -1257321433, now seen corresponding path program 1 times [2021-11-23 03:47:50,947 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:47:50,947 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [147475211] [2021-11-23 03:47:50,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:47:50,947 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:47:51,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:47:51,193 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 142 trivial. 0 not checked. [2021-11-23 03:47:51,193 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:47:51,193 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [147475211] [2021-11-23 03:47:51,193 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [147475211] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 03:47:51,194 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2116385584] [2021-11-23 03:47:51,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:47:51,194 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 03:47:51,194 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a43b3c29-418a-401f-8abb-001fe42d04c2/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 03:47:51,195 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a43b3c29-418a-401f-8abb-001fe42d04c2/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 03:47:51,209 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a43b3c29-418a-401f-8abb-001fe42d04c2/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-23 03:47:51,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:47:51,960 INFO L263 TraceCheckSpWp]: Trace formula consists of 1743 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-23 03:47:51,965 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 03:47:52,320 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 142 trivial. 0 not checked. [2021-11-23 03:47:52,321 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 03:47:52,321 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2116385584] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:47:52,321 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-23 03:47:52,321 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 14 [2021-11-23 03:47:52,321 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [190275905] [2021-11-23 03:47:52,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:47:52,322 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-23 03:47:52,322 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:47:52,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-23 03:47:52,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2021-11-23 03:47:52,323 INFO L87 Difference]: Start difference. First operand 68298 states and 100640 transitions. Second operand has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 5 states have internal predecessors, (65), 3 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) [2021-11-23 03:47:56,019 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:48:01,774 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:48:03,797 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:48:06,944 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.92s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:48:08,893 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:48:11,907 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:48:17,618 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:48:22,848 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:48:24,082 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:48:25,209 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:48:26,249 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:48:30,506 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:48:32,532 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:48:34,804 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:48:36,114 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:48:37,322 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:48:40,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:48:40,381 INFO L93 Difference]: Finished difference Result 151281 states and 222969 transitions. [2021-11-23 03:48:40,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-23 03:48:40,381 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 5 states have internal predecessors, (65), 3 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) Word has length 155 [2021-11-23 03:48:40,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:48:40,848 INFO L225 Difference]: With dead ends: 151281 [2021-11-23 03:48:40,848 INFO L226 Difference]: Without dead ends: 85390 [2021-11-23 03:48:41,404 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 152 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=70, Invalid=350, Unknown=0, NotChecked=0, Total=420 [2021-11-23 03:48:41,405 INFO L933 BasicCegarLoop]: 3326 mSDtfsCounter, 2224 mSDsluCounter, 16683 mSDsCounter, 0 mSdLazyCounter, 1482 mSolverCounterSat, 6 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 43.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2226 SdHoareTripleChecker+Valid, 18833 SdHoareTripleChecker+Invalid, 1492 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 1482 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 45.1s IncrementalHoareTripleChecker+Time [2021-11-23 03:48:41,405 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2226 Valid, 18833 Invalid, 1492 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 1482 Invalid, 4 Unknown, 0 Unchecked, 45.1s Time] [2021-11-23 03:48:41,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85390 states. [2021-11-23 03:48:44,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85390 to 85085. [2021-11-23 03:48:44,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85085 states, 50868 states have (on average 1.3154242352756154) internal successors, (66913), 54454 states have internal predecessors, (66913), 28166 states have call successors, (28166), 6059 states have call predecessors, (28166), 6050 states have return successors, (30345), 26967 states have call predecessors, (30345), 28165 states have call successors, (30345) [2021-11-23 03:48:45,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85085 states to 85085 states and 125424 transitions. [2021-11-23 03:48:45,045 INFO L78 Accepts]: Start accepts. Automaton has 85085 states and 125424 transitions. Word has length 155 [2021-11-23 03:48:45,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:48:45,066 INFO L470 AbstractCegarLoop]: Abstraction has 85085 states and 125424 transitions. [2021-11-23 03:48:45,066 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 5 states have internal predecessors, (65), 3 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) [2021-11-23 03:48:45,066 INFO L276 IsEmpty]: Start isEmpty. Operand 85085 states and 125424 transitions. [2021-11-23 03:48:45,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2021-11-23 03:48:45,079 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:48:45,080 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 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] [2021-11-23 03:48:45,141 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a43b3c29-418a-401f-8abb-001fe42d04c2/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-23 03:48:45,301 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a43b3c29-418a-401f-8abb-001fe42d04c2/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2021-11-23 03:48:45,302 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 03:48:45,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:48:45,302 INFO L85 PathProgramCache]: Analyzing trace with hash -328457677, now seen corresponding path program 1 times [2021-11-23 03:48:45,302 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:48:45,302 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1460618028] [2021-11-23 03:48:45,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:48:45,302 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:48:45,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:48:45,519 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 18 proven. 8 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2021-11-23 03:48:45,519 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:48:45,519 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1460618028] [2021-11-23 03:48:45,519 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1460618028] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 03:48:45,519 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [53143693] [2021-11-23 03:48:45,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:48:45,519 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 03:48:45,520 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a43b3c29-418a-401f-8abb-001fe42d04c2/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 03:48:45,520 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a43b3c29-418a-401f-8abb-001fe42d04c2/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 03:48:45,540 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a43b3c29-418a-401f-8abb-001fe42d04c2/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-23 03:48:46,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:48:46,331 INFO L263 TraceCheckSpWp]: Trace formula consists of 1830 conjuncts, 12 conjunts are in the unsatisfiable core [2021-11-23 03:48:46,336 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 03:48:46,770 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 14 proven. 6 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2021-11-23 03:48:46,770 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 03:48:47,322 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 17 proven. 3 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2021-11-23 03:48:47,322 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [53143693] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 03:48:47,323 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1474729333] [2021-11-23 03:48:47,348 INFO L159 IcfgInterpreter]: Started Sifa with 87 locations of interest [2021-11-23 03:48:47,348 INFO L166 IcfgInterpreter]: Building call graph [2021-11-23 03:48:47,353 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-23 03:48:47,358 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-23 03:48:47,359 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-23 03:48:48,914 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 166 treesize of output 139 [2021-11-23 03:48:48,973 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 11 [2021-11-23 03:48:49,015 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 11 [2021-11-23 03:48:49,049 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 11 [2021-11-23 03:48:49,104 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 11 [2021-11-23 03:48:49,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:48:49,633 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:48:49,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:48:49,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:48:49,872 INFO L244 Elim1Store]: Index analysis took 603 ms [2021-11-23 03:49:43,617 WARN L227 SmtUtils]: Spent 53.69s on a formula simplification. DAG size of input: 2260 DAG size of output: 1033 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-23 03:49:43,624 INFO L354 Elim1Store]: treesize reduction 7536, result has 19.3 percent of original size [2021-11-23 03:49:43,627 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 91 select indices, 91 select index equivalence classes, 3749 disjoint index pairs (out of 4095 index pairs), introduced 91 new quantified variables, introduced 437 case distinctions, treesize of input 495 treesize of output 2113 [2021-11-23 03:49:44,964 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 166 treesize of output 139 [2021-11-23 03:49:45,348 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:45,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:45,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:45,354 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:45,376 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 86 select indices, 86 select index equivalence classes, 4009 disjoint index pairs (out of 3655 index pairs), introduced 86 new quantified variables, introduced 0 case distinctions, treesize of input 446 treesize of output 709 [2021-11-23 03:49:45,826 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 11 [2021-11-23 03:49:45,943 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 11 [2021-11-23 03:49:46,042 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 11 [2021-11-23 03:49:46,262 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 28 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 385 treesize of output 329 [2021-11-23 03:49:51,556 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-23 03:49:51,565 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2021-11-23 03:49:51,573 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 6 [2021-11-23 03:49:53,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:53,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:53,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:53,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:53,948 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 90 select indices, 90 select index equivalence classes, 4009 disjoint index pairs (out of 4005 index pairs), introduced 90 new quantified variables, introduced 0 case distinctions, treesize of input 451 treesize of output 271 [2021-11-23 03:49:54,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:54,370 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:54,376 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:54,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:54,394 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 91 select indices, 91 select index equivalence classes, 4095 disjoint index pairs (out of 4095 index pairs), introduced 91 new quantified variables, introduced 0 case distinctions, treesize of input 456 treesize of output 274 [2021-11-23 03:49:54,888 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 10 select indices, 10 select index equivalence classes, 45 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 571 treesize of output 437 [2021-11-23 03:49:55,108 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,113 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,114 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,115 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,116 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,118 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,119 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,120 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,122 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,124 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,127 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,128 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,130 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,131 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,132 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,145 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,146 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,149 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,150 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,157 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,158 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,162 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,163 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,165 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,171 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,174 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,176 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,177 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,180 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,181 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,182 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,184 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,188 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,194 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,197 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,199 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,201 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,202 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,205 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,206 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,207 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,209 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,210 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,214 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,216 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,222 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,238 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,240 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,243 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,245 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,247 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,253 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,255 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,257 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,260 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,262 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,264 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,266 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,268 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,270 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,272 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,274 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,276 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,278 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,280 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,284 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,286 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,292 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,294 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,296 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,298 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,301 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,303 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,305 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,307 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,309 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,311 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,313 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,315 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,317 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,319 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,323 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,325 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,327 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,329 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,331 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,333 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,334 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,336 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,336 INFO L244 Elim1Store]: Index analysis took 229 ms [2021-11-23 03:49:55,341 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 17 select indices, 17 select index equivalence classes, 136 disjoint index pairs (out of 136 index pairs), introduced 17 new quantified variables, introduced 0 case distinctions, treesize of input 373 treesize of output 307 [2021-11-23 03:49:55,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,474 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,475 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,477 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,478 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,479 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,481 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,485 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,487 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,488 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,490 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,494 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,495 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,498 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 256 treesize of output 228 [2021-11-23 03:49:55,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,620 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,624 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,625 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,627 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,628 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,630 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,633 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,634 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,636 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,639 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,640 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,641 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,643 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,644 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,645 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,646 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,649 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,650 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,651 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,654 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,656 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,658 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,659 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,671 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,672 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,674 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,691 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,693 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,695 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,696 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,698 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,700 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,702 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,709 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,710 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,712 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,714 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,715 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,716 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,719 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,720 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,723 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,726 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,728 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,733 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,740 INFO L244 Elim1Store]: Index analysis took 123 ms [2021-11-23 03:49:55,743 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 14 select indices, 14 select index equivalence classes, 91 disjoint index pairs (out of 91 index pairs), introduced 14 new quantified variables, introduced 0 case distinctions, treesize of input 207 treesize of output 153 [2021-11-23 03:49:55,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,870 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,871 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,872 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,874 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,875 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,878 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,879 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,882 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,886 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,888 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,889 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,891 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,896 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,897 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,899 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,900 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,901 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,904 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,905 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,907 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,908 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,909 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,910 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,912 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,913 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,914 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,916 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,917 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,920 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,921 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,922 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,926 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,927 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,934 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,938 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,945 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,950 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,951 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,952 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,955 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,957 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,959 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,960 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,967 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,968 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,969 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,971 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,972 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,973 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,975 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,977 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,983 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,984 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,985 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,989 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,992 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,994 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,996 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,997 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,998 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:56,000 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:56,001 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:56,002 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:56,003 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:56,005 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:56,006 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:56,007 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:56,009 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:56,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:56,011 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:56,013 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:56,014 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:56,015 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:56,017 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:56,018 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:56,018 INFO L244 Elim1Store]: Index analysis took 157 ms [2021-11-23 03:49:56,021 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 16 select indices, 16 select index equivalence classes, 120 disjoint index pairs (out of 120 index pairs), introduced 16 new quantified variables, introduced 0 case distinctions, treesize of input 111 treesize of output 49