./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--irda--vlsi_ir.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04121598-be04-4c37-8149-1ec854d9299d/bin/utaipan-TEXQjIfE4P/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04121598-be04-4c37-8149-1ec854d9299d/bin/utaipan-TEXQjIfE4P/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04121598-be04-4c37-8149-1ec854d9299d/bin/utaipan-TEXQjIfE4P/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04121598-be04-4c37-8149-1ec854d9299d/bin/utaipan-TEXQjIfE4P/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--irda--vlsi_ir.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04121598-be04-4c37-8149-1ec854d9299d/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04121598-be04-4c37-8149-1ec854d9299d/bin/utaipan-TEXQjIfE4P --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 3be4ac024b7f357f41d231fb5742f86a984717c473cc6044544e39e88c4f03b3 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-20 22:46:52,888 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-20 22:46:52,890 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-20 22:46:52,943 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-20 22:46:52,943 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-20 22:46:52,947 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-20 22:46:52,949 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-20 22:46:52,952 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-20 22:46:52,955 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-20 22:46:52,963 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-20 22:46:52,964 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-20 22:46:52,966 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-20 22:46:52,966 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-20 22:46:52,971 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-20 22:46:52,973 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-20 22:46:52,978 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-20 22:46:52,979 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-20 22:46:52,981 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-20 22:46:52,983 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-20 22:46:52,992 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-20 22:46:52,994 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-20 22:46:52,995 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-20 22:46:52,999 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-20 22:46:52,999 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-20 22:46:53,008 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-20 22:46:53,009 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-20 22:46:53,009 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-20 22:46:53,011 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-20 22:46:53,012 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-20 22:46:53,013 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-20 22:46:53,014 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-20 22:46:53,015 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-20 22:46:53,017 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-20 22:46:53,018 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-20 22:46:53,019 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-20 22:46:53,019 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-20 22:46:53,020 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-20 22:46:53,020 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-20 22:46:53,021 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-20 22:46:53,021 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-20 22:46:53,022 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-20 22:46:53,023 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04121598-be04-4c37-8149-1ec854d9299d/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-20 22:46:53,064 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-20 22:46:53,065 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-20 22:46:53,065 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-20 22:46:53,065 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-20 22:46:53,072 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-20 22:46:53,072 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-20 22:46:53,073 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-20 22:46:53,073 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-20 22:46:53,073 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-20 22:46:53,073 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-20 22:46:53,074 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-20 22:46:53,074 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-20 22:46:53,075 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-20 22:46:53,075 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-20 22:46:53,075 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-20 22:46:53,075 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-20 22:46:53,076 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-20 22:46:53,076 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-20 22:46:53,077 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-20 22:46:53,077 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-20 22:46:53,077 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-20 22:46:53,078 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-20 22:46:53,078 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-20 22:46:53,078 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-20 22:46:53,078 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-20 22:46:53,078 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-20 22:46:53,079 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-20 22:46:53,079 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-20 22:46:53,079 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-20 22:46:53,079 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 22:46:53,080 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-20 22:46:53,080 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-20 22:46:53,080 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-20 22:46:53,080 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-20 22:46:53,081 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-20 22:46:53,081 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-20 22:46:53,081 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-20 22:46:53,081 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-20 22:46:53,082 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_04121598-be04-4c37-8149-1ec854d9299d/bin/utaipan-TEXQjIfE4P/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04121598-be04-4c37-8149-1ec854d9299d/bin/utaipan-TEXQjIfE4P Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3be4ac024b7f357f41d231fb5742f86a984717c473cc6044544e39e88c4f03b3 [2021-11-20 22:46:53,345 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-20 22:46:53,381 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-20 22:46:53,383 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-20 22:46:53,384 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-20 22:46:53,384 INFO L275 PluginConnector]: CDTParser initialized [2021-11-20 22:46:53,385 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04121598-be04-4c37-8149-1ec854d9299d/bin/utaipan-TEXQjIfE4P/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--irda--vlsi_ir.ko-entry_point.cil.out.i [2021-11-20 22:46:53,461 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04121598-be04-4c37-8149-1ec854d9299d/bin/utaipan-TEXQjIfE4P/data/08bd9fb72/2c2947c1cad44642a6c1a05a723cd3c5/FLAGcdb73bb90 [2021-11-20 22:46:54,354 INFO L306 CDTParser]: Found 1 translation units. [2021-11-20 22:46:54,354 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04121598-be04-4c37-8149-1ec854d9299d/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--irda--vlsi_ir.ko-entry_point.cil.out.i [2021-11-20 22:46:54,392 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04121598-be04-4c37-8149-1ec854d9299d/bin/utaipan-TEXQjIfE4P/data/08bd9fb72/2c2947c1cad44642a6c1a05a723cd3c5/FLAGcdb73bb90 [2021-11-20 22:46:54,799 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04121598-be04-4c37-8149-1ec854d9299d/bin/utaipan-TEXQjIfE4P/data/08bd9fb72/2c2947c1cad44642a6c1a05a723cd3c5 [2021-11-20 22:46:54,801 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-20 22:46:54,803 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-20 22:46:54,806 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-20 22:46:54,806 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-20 22:46:54,809 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-20 22:46:54,810 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:46:54" (1/1) ... [2021-11-20 22:46:54,812 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@305a67d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:46:54, skipping insertion in model container [2021-11-20 22:46:54,812 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:46:54" (1/1) ... [2021-11-20 22:46:54,818 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-20 22:46:54,963 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-20 22:46:57,253 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_04121598-be04-4c37-8149-1ec854d9299d/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--irda--vlsi_ir.ko-entry_point.cil.out.i[293856,293869] [2021-11-20 22:46:57,306 WARN L610 FunctionHandler]: implicit declaration of function ldv_xmalloc [2021-11-20 22:46:57,328 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 22:46:57,368 INFO L203 MainTranslator]: Completed pre-run [2021-11-20 22:46:57,791 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_04121598-be04-4c37-8149-1ec854d9299d/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--irda--vlsi_ir.ko-entry_point.cil.out.i[293856,293869] [2021-11-20 22:46:57,795 WARN L610 FunctionHandler]: implicit declaration of function ldv_xmalloc [2021-11-20 22:46:57,800 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 22:46:57,932 INFO L208 MainTranslator]: Completed translation [2021-11-20 22:46:57,932 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:46:57 WrapperNode [2021-11-20 22:46:57,932 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-20 22:46:57,933 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-20 22:46:57,933 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-20 22:46:57,934 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-20 22:46:57,941 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:46:57" (1/1) ... [2021-11-20 22:46:58,049 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:46:57" (1/1) ... [2021-11-20 22:46:58,261 INFO L137 Inliner]: procedures = 275, calls = 1982, calls flagged for inlining = 131, calls inlined = 123, statements flattened = 4568 [2021-11-20 22:46:58,262 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-20 22:46:58,262 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-20 22:46:58,263 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-20 22:46:58,263 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-20 22:46:58,273 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:46:57" (1/1) ... [2021-11-20 22:46:58,274 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:46:57" (1/1) ... [2021-11-20 22:46:58,320 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:46:57" (1/1) ... [2021-11-20 22:46:58,321 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:46:57" (1/1) ... [2021-11-20 22:46:58,434 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:46:57" (1/1) ... [2021-11-20 22:46:58,453 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:46:57" (1/1) ... [2021-11-20 22:46:58,486 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:46:57" (1/1) ... [2021-11-20 22:46:58,520 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-20 22:46:58,521 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-20 22:46:58,521 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-20 22:46:58,521 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-20 22:46:58,522 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:46:57" (1/1) ... [2021-11-20 22:46:58,534 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 22:46:58,544 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04121598-be04-4c37-8149-1ec854d9299d/bin/utaipan-TEXQjIfE4P/z3 [2021-11-20 22:46:58,561 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04121598-be04-4c37-8149-1ec854d9299d/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-20 22:46:58,565 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04121598-be04-4c37-8149-1ec854d9299d/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-20 22:46:58,599 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2021-11-20 22:46:58,599 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2021-11-20 22:46:58,600 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_shutdown_2 [2021-11-20 22:46:58,600 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_shutdown_2 [2021-11-20 22:46:58,600 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-20 22:46:58,600 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-20 22:46:58,601 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2021-11-20 22:46:58,601 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2021-11-20 22:46:58,601 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-20 22:46:58,601 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-20 22:46:58,601 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-20 22:46:58,601 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-20 22:46:58,601 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-11-20 22:46:58,601 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-11-20 22:46:58,601 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2021-11-20 22:46:58,603 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2021-11-20 22:46:58,603 INFO L130 BoogieDeclarations]: Found specification of procedure rd_get_count [2021-11-20 22:46:58,603 INFO L138 BoogieDeclarations]: Found implementation of procedure rd_get_count [2021-11-20 22:46:58,603 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-20 22:46:58,603 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-20 22:46:58,603 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_byte [2021-11-20 22:46:58,604 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_byte [2021-11-20 22:46:58,604 INFO L130 BoogieDeclarations]: Found specification of procedure rd_set_status [2021-11-20 22:46:58,604 INFO L138 BoogieDeclarations]: Found implementation of procedure rd_set_status [2021-11-20 22:46:58,604 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2021-11-20 22:46:58,604 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2021-11-20 22:46:58,605 INFO L130 BoogieDeclarations]: Found specification of procedure rd_get_status [2021-11-20 22:46:58,605 INFO L138 BoogieDeclarations]: Found implementation of procedure rd_get_status [2021-11-20 22:46:58,605 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_sync_single_for_cpu [2021-11-20 22:46:58,605 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_sync_single_for_cpu [2021-11-20 22:46:58,605 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-11-20 22:46:58,606 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-11-20 22:46:58,606 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-11-20 22:46:58,606 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-11-20 22:46:58,606 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_ring_debug [2021-11-20 22:46:58,607 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_ring_debug [2021-11-20 22:46:58,607 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-11-20 22:46:58,607 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-11-20 22:46:58,607 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2021-11-20 22:46:58,607 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2021-11-20 22:46:58,608 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-20 22:46:58,608 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-20 22:46:58,608 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-20 22:46:58,608 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-20 22:46:58,608 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-11-20 22:46:58,609 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-11-20 22:46:58,609 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2021-11-20 22:46:58,609 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2021-11-20 22:46:58,610 INFO L130 BoogieDeclarations]: Found specification of procedure ktime_get [2021-11-20 22:46:58,611 INFO L138 BoogieDeclarations]: Found implementation of procedure ktime_get [2021-11-20 22:46:58,611 INFO L130 BoogieDeclarations]: Found specification of procedure ring_get [2021-11-20 22:46:58,611 INFO L138 BoogieDeclarations]: Found implementation of procedure ring_get [2021-11-20 22:46:58,612 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2021-11-20 22:46:58,612 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2021-11-20 22:46:58,612 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-20 22:46:58,612 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_irda_resume [2021-11-20 22:46:58,612 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_irda_resume [2021-11-20 22:46:58,613 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2021-11-20 22:46:58,613 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2021-11-20 22:46:58,613 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-20 22:46:58,613 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2021-11-20 22:46:58,613 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2021-11-20 22:46:58,613 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-20 22:46:58,613 INFO L130 BoogieDeclarations]: Found specification of procedure remove_proc_entry [2021-11-20 22:46:58,613 INFO L138 BoogieDeclarations]: Found implementation of procedure remove_proc_entry [2021-11-20 22:46:58,614 INFO L130 BoogieDeclarations]: Found specification of procedure ktime_us_delta [2021-11-20 22:46:58,614 INFO L138 BoogieDeclarations]: Found implementation of procedure ktime_us_delta [2021-11-20 22:46:58,614 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-11-20 22:46:58,614 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-11-20 22:46:58,614 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_free_ring [2021-11-20 22:46:58,614 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_free_ring [2021-11-20 22:46:58,615 INFO L130 BoogieDeclarations]: Found specification of procedure ring_last [2021-11-20 22:46:58,615 INFO L138 BoogieDeclarations]: Found implementation of procedure ring_last [2021-11-20 22:46:58,615 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2021-11-20 22:46:58,616 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2021-11-20 22:46:58,616 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-20 22:46:58,616 INFO L130 BoogieDeclarations]: Found specification of procedure ring_put [2021-11-20 22:46:58,616 INFO L138 BoogieDeclarations]: Found implementation of procedure ring_put [2021-11-20 22:46:58,616 INFO L130 BoogieDeclarations]: Found specification of procedure netif_queue_stopped [2021-11-20 22:46:58,616 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_queue_stopped [2021-11-20 22:46:58,616 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-20 22:46:58,617 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2021-11-20 22:46:58,617 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2021-11-20 22:46:58,617 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_byte [2021-11-20 22:46:58,617 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_byte [2021-11-20 22:46:58,618 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-11-20 22:46:58,618 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-11-20 22:46:58,619 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_tx_timeout [2021-11-20 22:46:58,619 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_tx_timeout [2021-11-20 22:46:58,619 INFO L130 BoogieDeclarations]: Found specification of procedure outw [2021-11-20 22:46:58,619 INFO L138 BoogieDeclarations]: Found implementation of procedure outw [2021-11-20 22:46:58,620 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2021-11-20 22:46:58,620 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2021-11-20 22:46:58,620 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-11-20 22:46:58,620 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-11-20 22:46:58,620 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2021-11-20 22:46:58,620 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2021-11-20 22:46:58,620 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-11-20 22:46:58,621 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-11-20 22:46:58,621 INFO L130 BoogieDeclarations]: Found specification of procedure rd_set_addr_status [2021-11-20 22:46:58,621 INFO L138 BoogieDeclarations]: Found implementation of procedure rd_set_addr_status [2021-11-20 22:46:58,621 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-20 22:46:58,621 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_destroy_hwif [2021-11-20 22:46:58,622 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_destroy_hwif [2021-11-20 22:46:58,622 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-11-20 22:46:58,622 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-11-20 22:46:58,622 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-20 22:46:58,622 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_stop_hw [2021-11-20 22:46:58,623 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_stop_hw [2021-11-20 22:46:58,624 INFO L130 BoogieDeclarations]: Found specification of procedure rd_get_addr [2021-11-20 22:46:58,626 INFO L138 BoogieDeclarations]: Found implementation of procedure rd_get_addr [2021-11-20 22:46:58,626 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-20 22:46:58,627 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-11-20 22:46:58,627 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-11-20 22:46:58,628 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-11-20 22:46:58,629 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-11-20 22:46:58,629 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_irda_remove [2021-11-20 22:46:58,629 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_irda_remove [2021-11-20 22:46:58,630 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-20 22:46:58,634 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-20 22:46:58,634 INFO L130 BoogieDeclarations]: Found specification of procedure pci_choose_state [2021-11-20 22:46:58,634 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_choose_state [2021-11-20 22:46:58,634 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_clear_regs [2021-11-20 22:46:58,635 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_clear_regs [2021-11-20 22:46:58,635 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-11-20 22:46:58,635 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-11-20 22:46:58,635 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-11-20 22:46:58,635 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-11-20 22:46:58,635 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_dma_mask [2021-11-20 22:46:58,635 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_dma_mask [2021-11-20 22:46:58,635 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-20 22:46:58,635 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-20 22:46:58,636 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_start_hw [2021-11-20 22:46:58,636 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_start_hw [2021-11-20 22:46:58,636 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2021-11-20 22:46:58,636 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2021-11-20 22:46:58,636 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-20 22:46:58,636 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-11-20 22:46:58,636 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-11-20 22:46:58,636 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_irq_1 [2021-11-20 22:46:58,637 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_irq_1 [2021-11-20 22:46:58,637 INFO L130 BoogieDeclarations]: Found specification of procedure rd_activate [2021-11-20 22:46:58,637 INFO L138 BoogieDeclarations]: Found implementation of procedure rd_activate [2021-11-20 22:46:58,637 INFO L130 BoogieDeclarations]: Found specification of procedure net_ratelimit [2021-11-20 22:46:58,637 INFO L138 BoogieDeclarations]: Found implementation of procedure net_ratelimit [2021-11-20 22:46:58,637 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-20 22:46:58,637 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-20 22:46:58,637 INFO L130 BoogieDeclarations]: Found specification of procedure rd_is_active [2021-11-20 22:46:58,637 INFO L138 BoogieDeclarations]: Found implementation of procedure rd_is_active [2021-11-20 22:46:58,638 INFO L130 BoogieDeclarations]: Found specification of procedure irlap_close [2021-11-20 22:46:58,638 INFO L138 BoogieDeclarations]: Found implementation of procedure irlap_close [2021-11-20 22:46:58,638 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2021-11-20 22:46:58,638 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2021-11-20 22:46:58,638 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-20 22:46:58,638 INFO L130 BoogieDeclarations]: Found specification of procedure rd_set_count [2021-11-20 22:46:58,638 INFO L138 BoogieDeclarations]: Found implementation of procedure rd_set_count [2021-11-20 22:46:58,638 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2021-11-20 22:46:58,639 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2021-11-20 22:46:58,639 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2021-11-20 22:46:58,639 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2021-11-20 22:46:58,639 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-20 22:46:58,639 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2021-11-20 22:46:58,639 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2021-11-20 22:46:58,639 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-11-20 22:46:58,639 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-11-20 22:46:58,639 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-20 22:46:58,640 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-20 22:46:58,640 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_process_tx [2021-11-20 22:46:58,640 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_process_tx [2021-11-20 22:46:58,640 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2021-11-20 22:46:58,640 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2021-11-20 22:46:58,640 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_ioctl [2021-11-20 22:46:58,640 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_ioctl [2021-11-20 22:46:58,640 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_resume_early_2 [2021-11-20 22:46:58,641 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_resume_early_2 [2021-11-20 22:46:58,641 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2021-11-20 22:46:58,641 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2021-11-20 22:46:58,641 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_alloc_ring [2021-11-20 22:46:58,641 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_alloc_ring [2021-11-20 22:46:58,641 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_fill_rx [2021-11-20 22:46:58,641 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_fill_rx [2021-11-20 22:46:58,641 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2021-11-20 22:46:58,642 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2021-11-20 22:46:58,642 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_process_rx [2021-11-20 22:46:58,642 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_process_rx [2021-11-20 22:46:58,642 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2021-11-20 22:46:58,642 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2021-11-20 22:46:58,642 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_reg_debug [2021-11-20 22:46:58,642 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_reg_debug [2021-11-20 22:46:58,642 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-20 22:46:58,642 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_set_baud [2021-11-20 22:46:58,643 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_set_baud [2021-11-20 22:46:58,643 INFO L130 BoogieDeclarations]: Found specification of procedure inw [2021-11-20 22:46:58,643 INFO L138 BoogieDeclarations]: Found implementation of procedure inw [2021-11-20 22:46:58,643 INFO L130 BoogieDeclarations]: Found specification of procedure ring_first [2021-11-20 22:46:58,643 INFO L138 BoogieDeclarations]: Found implementation of procedure ring_first [2021-11-20 22:46:58,643 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_sync_single_for_device [2021-11-20 22:46:58,643 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_sync_single_for_device [2021-11-20 22:46:58,643 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-20 22:46:58,643 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-20 22:46:59,378 INFO L236 CfgBuilder]: Building ICFG [2021-11-20 22:46:59,382 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-20 22:46:59,907 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-20 22:47:06,476 INFO L277 CfgBuilder]: Performing block encoding [2021-11-20 22:47:07,482 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-20 22:47:07,482 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-20 22:47:07,488 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:47:07 BoogieIcfgContainer [2021-11-20 22:47:07,488 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-20 22:47:07,490 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-20 22:47:07,490 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-20 22:47:07,493 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-20 22:47:07,494 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 10:46:54" (1/3) ... [2021-11-20 22:47:07,494 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@750286b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:47:07, skipping insertion in model container [2021-11-20 22:47:07,494 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:46:57" (2/3) ... [2021-11-20 22:47:07,495 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@750286b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:47:07, skipping insertion in model container [2021-11-20 22:47:07,495 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:47:07" (3/3) ... [2021-11-20 22:47:07,496 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--net--irda--vlsi_ir.ko-entry_point.cil.out.i [2021-11-20 22:47:07,501 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-20 22:47:07,501 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-20 22:47:07,561 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-20 22:47:07,574 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 [2021-11-20 22:47:07,575 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-20 22:47:07,636 INFO L276 IsEmpty]: Start isEmpty. Operand has 1228 states, 727 states have (on average 1.2943603851444292) internal successors, (941), 753 states have internal predecessors, (941), 409 states have call successors, (409), 91 states have call predecessors, (409), 90 states have return successors, (402), 401 states have call predecessors, (402), 402 states have call successors, (402) [2021-11-20 22:47:07,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2021-11-20 22:47:07,663 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 22:47:07,664 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 22:47:07,664 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 22:47:07,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 22:47:07,669 INFO L85 PathProgramCache]: Analyzing trace with hash -306098764, now seen corresponding path program 1 times [2021-11-20 22:47:07,678 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 22:47:07,678 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [431358542] [2021-11-20 22:47:07,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 22:47:07,679 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 22:47:08,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 22:47:08,480 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 170 trivial. 0 not checked. [2021-11-20 22:47:08,481 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 22:47:08,483 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [431358542] [2021-11-20 22:47:08,487 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [431358542] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 22:47:08,487 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 22:47:08,488 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-20 22:47:08,489 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1355006980] [2021-11-20 22:47:08,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 22:47:08,494 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 22:47:08,495 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 22:47:08,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 22:47:08,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 22:47:08,535 INFO L87 Difference]: Start difference. First operand has 1228 states, 727 states have (on average 1.2943603851444292) internal successors, (941), 753 states have internal predecessors, (941), 409 states have call successors, (409), 91 states have call predecessors, (409), 90 states have return successors, (402), 401 states have call predecessors, (402), 402 states have call successors, (402) Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-11-20 22:47:10,612 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:47:13,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 22:47:13,852 INFO L93 Difference]: Finished difference Result 3233 states and 4633 transitions. [2021-11-20 22:47:13,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 22:47:13,855 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 131 [2021-11-20 22:47:13,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 22:47:13,890 INFO L225 Difference]: With dead ends: 3233 [2021-11-20 22:47:13,890 INFO L226 Difference]: Without dead ends: 1999 [2021-11-20 22:47:13,901 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 [2021-11-20 22:47:13,905 INFO L933 BasicCegarLoop]: 1800 mSDtfsCounter, 1144 mSDsluCounter, 1689 mSDsCounter, 0 mSdLazyCounter, 449 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1144 SdHoareTripleChecker+Valid, 3287 SdHoareTripleChecker+Invalid, 456 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 449 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2021-11-20 22:47:13,905 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1144 Valid, 3287 Invalid, 456 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 449 Invalid, 1 Unknown, 0 Unchecked, 5.0s Time] [2021-11-20 22:47:13,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1999 states. [2021-11-20 22:47:14,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1999 to 1995. [2021-11-20 22:47:14,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1995 states, 1187 states have (on average 1.2771693344566133) internal successors, (1516), 1212 states have internal predecessors, (1516), 650 states have call successors, (650), 158 states have call predecessors, (650), 157 states have return successors, (653), 646 states have call predecessors, (653), 649 states have call successors, (653) [2021-11-20 22:47:14,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1995 states to 1995 states and 2819 transitions. [2021-11-20 22:47:14,145 INFO L78 Accepts]: Start accepts. Automaton has 1995 states and 2819 transitions. Word has length 131 [2021-11-20 22:47:14,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 22:47:14,146 INFO L470 AbstractCegarLoop]: Abstraction has 1995 states and 2819 transitions. [2021-11-20 22:47:14,147 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-11-20 22:47:14,148 INFO L276 IsEmpty]: Start isEmpty. Operand 1995 states and 2819 transitions. [2021-11-20 22:47:14,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2021-11-20 22:47:14,166 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 22:47:14,167 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 22:47:14,167 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-20 22:47:14,167 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 22:47:14,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 22:47:14,169 INFO L85 PathProgramCache]: Analyzing trace with hash -79676592, now seen corresponding path program 1 times [2021-11-20 22:47:14,169 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 22:47:14,169 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1606117267] [2021-11-20 22:47:14,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 22:47:14,169 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 22:47:14,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 22:47:14,588 INFO L134 CoverageAnalysis]: Checked inductivity of 184 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 184 trivial. 0 not checked. [2021-11-20 22:47:14,588 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 22:47:14,588 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1606117267] [2021-11-20 22:47:14,588 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1606117267] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 22:47:14,588 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 22:47:14,589 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-20 22:47:14,589 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2017483249] [2021-11-20 22:47:14,589 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 22:47:14,590 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-20 22:47:14,590 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 22:47:14,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-20 22:47:14,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-20 22:47:14,591 INFO L87 Difference]: Start difference. First operand 1995 states and 2819 transitions. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 3 states have call successors, (31), 3 states have call predecessors, (31), 1 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) [2021-11-20 22:47:16,639 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:47:23,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 22:47:23,669 INFO L93 Difference]: Finished difference Result 5852 states and 8264 transitions. [2021-11-20 22:47:23,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-20 22:47:23,670 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 3 states have call successors, (31), 3 states have call predecessors, (31), 1 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) Word has length 185 [2021-11-20 22:47:23,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 22:47:23,704 INFO L225 Difference]: With dead ends: 5852 [2021-11-20 22:47:23,705 INFO L226 Difference]: Without dead ends: 3882 [2021-11-20 22:47:23,716 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 [2021-11-20 22:47:23,717 INFO L933 BasicCegarLoop]: 2102 mSDtfsCounter, 1546 mSDsluCounter, 6378 mSDsCounter, 0 mSdLazyCounter, 991 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1550 SdHoareTripleChecker+Valid, 7773 SdHoareTripleChecker+Invalid, 995 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 991 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.8s IncrementalHoareTripleChecker+Time [2021-11-20 22:47:23,717 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1550 Valid, 7773 Invalid, 995 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 991 Invalid, 1 Unknown, 0 Unchecked, 8.8s Time] [2021-11-20 22:47:23,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3882 states. [2021-11-20 22:47:23,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3882 to 3858. [2021-11-20 22:47:23,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3858 states, 2296 states have (on average 1.279616724738676) internal successors, (2938), 2354 states have internal predecessors, (2938), 1249 states have call successors, (1249), 313 states have call predecessors, (1249), 312 states have return successors, (1256), 1233 states have call predecessors, (1256), 1248 states have call successors, (1256) [2021-11-20 22:47:23,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3858 states to 3858 states and 5443 transitions. [2021-11-20 22:47:23,946 INFO L78 Accepts]: Start accepts. Automaton has 3858 states and 5443 transitions. Word has length 185 [2021-11-20 22:47:23,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 22:47:23,947 INFO L470 AbstractCegarLoop]: Abstraction has 3858 states and 5443 transitions. [2021-11-20 22:47:23,947 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 3 states have call successors, (31), 3 states have call predecessors, (31), 1 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) [2021-11-20 22:47:23,948 INFO L276 IsEmpty]: Start isEmpty. Operand 3858 states and 5443 transitions. [2021-11-20 22:47:23,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2021-11-20 22:47:23,956 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 22:47:23,956 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 22:47:23,956 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-20 22:47:23,957 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 22:47:23,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 22:47:23,957 INFO L85 PathProgramCache]: Analyzing trace with hash -553608569, now seen corresponding path program 1 times [2021-11-20 22:47:23,957 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 22:47:23,958 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1377197427] [2021-11-20 22:47:23,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 22:47:23,958 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 22:47:24,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 22:47:24,272 INFO L134 CoverageAnalysis]: Checked inductivity of 184 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 184 trivial. 0 not checked. [2021-11-20 22:47:24,272 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 22:47:24,272 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1377197427] [2021-11-20 22:47:24,273 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1377197427] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 22:47:24,273 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 22:47:24,273 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-20 22:47:24,273 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [621783097] [2021-11-20 22:47:24,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 22:47:24,274 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-20 22:47:24,274 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 22:47:24,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-20 22:47:24,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-20 22:47:24,275 INFO L87 Difference]: Start difference. First operand 3858 states and 5443 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 3 states have call successors, (31), 3 states have call predecessors, (31), 1 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) [2021-11-20 22:47:26,324 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:47:33,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 22:47:33,069 INFO L93 Difference]: Finished difference Result 8416 states and 11795 transitions. [2021-11-20 22:47:33,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-20 22:47:33,070 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 3 states have call successors, (31), 3 states have call predecessors, (31), 1 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) Word has length 188 [2021-11-20 22:47:33,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 22:47:33,117 INFO L225 Difference]: With dead ends: 8416 [2021-11-20 22:47:33,117 INFO L226 Difference]: Without dead ends: 5758 [2021-11-20 22:47:33,131 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 [2021-11-20 22:47:33,132 INFO L933 BasicCegarLoop]: 1903 mSDtfsCounter, 1540 mSDsluCounter, 5914 mSDsCounter, 0 mSdLazyCounter, 891 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1544 SdHoareTripleChecker+Valid, 7174 SdHoareTripleChecker+Invalid, 895 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 891 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.5s IncrementalHoareTripleChecker+Time [2021-11-20 22:47:33,133 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1544 Valid, 7174 Invalid, 895 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 891 Invalid, 1 Unknown, 0 Unchecked, 8.5s Time] [2021-11-20 22:47:33,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5758 states. [2021-11-20 22:47:33,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5758 to 5724. [2021-11-20 22:47:33,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5724 states, 3411 states have (on average 1.279683377308707) internal successors, (4365), 3492 states have internal predecessors, (4365), 1846 states have call successors, (1846), 467 states have call predecessors, (1846), 466 states have return successors, (1857), 1828 states have call predecessors, (1857), 1845 states have call successors, (1857) [2021-11-20 22:47:33,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5724 states to 5724 states and 8068 transitions. [2021-11-20 22:47:33,548 INFO L78 Accepts]: Start accepts. Automaton has 5724 states and 8068 transitions. Word has length 188 [2021-11-20 22:47:33,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 22:47:33,549 INFO L470 AbstractCegarLoop]: Abstraction has 5724 states and 8068 transitions. [2021-11-20 22:47:33,549 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 3 states have call successors, (31), 3 states have call predecessors, (31), 1 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) [2021-11-20 22:47:33,549 INFO L276 IsEmpty]: Start isEmpty. Operand 5724 states and 8068 transitions. [2021-11-20 22:47:33,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2021-11-20 22:47:33,558 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 22:47:33,558 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 22:47:33,558 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-20 22:47:33,558 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 22:47:33,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 22:47:33,559 INFO L85 PathProgramCache]: Analyzing trace with hash 58142163, now seen corresponding path program 1 times [2021-11-20 22:47:33,559 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 22:47:33,559 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [641541551] [2021-11-20 22:47:33,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 22:47:33,560 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 22:47:33,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 22:47:33,811 INFO L134 CoverageAnalysis]: Checked inductivity of 184 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 184 trivial. 0 not checked. [2021-11-20 22:47:33,811 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 22:47:33,811 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [641541551] [2021-11-20 22:47:33,811 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [641541551] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 22:47:33,811 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 22:47:33,812 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-20 22:47:33,813 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1750569237] [2021-11-20 22:47:33,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 22:47:33,814 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-20 22:47:33,814 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 22:47:33,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-20 22:47:33,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-20 22:47:33,815 INFO L87 Difference]: Start difference. First operand 5724 states and 8068 transitions. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 3 states have call successors, (31), 3 states have call predecessors, (31), 1 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) [2021-11-20 22:47:35,858 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:47:42,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 22:47:42,893 INFO L93 Difference]: Finished difference Result 10292 states and 14424 transitions. [2021-11-20 22:47:42,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-20 22:47:42,894 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 3 states have call successors, (31), 3 states have call predecessors, (31), 1 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) Word has length 187 [2021-11-20 22:47:42,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 22:47:42,938 INFO L225 Difference]: With dead ends: 10292 [2021-11-20 22:47:42,938 INFO L226 Difference]: Without dead ends: 5766 [2021-11-20 22:47:42,960 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 [2021-11-20 22:47:42,961 INFO L933 BasicCegarLoop]: 1903 mSDtfsCounter, 1540 mSDsluCounter, 5914 mSDsCounter, 0 mSdLazyCounter, 891 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1544 SdHoareTripleChecker+Valid, 7174 SdHoareTripleChecker+Invalid, 895 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 891 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.8s IncrementalHoareTripleChecker+Time [2021-11-20 22:47:42,961 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1544 Valid, 7174 Invalid, 895 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 891 Invalid, 1 Unknown, 0 Unchecked, 8.8s Time] [2021-11-20 22:47:42,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5766 states. [2021-11-20 22:47:43,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5766 to 5732. [2021-11-20 22:47:43,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5732 states, 3419 states have (on average 1.2790289558350394) internal successors, (4373), 3498 states have internal predecessors, (4373), 1844 states have call successors, (1844), 469 states have call predecessors, (1844), 468 states have return successors, (1855), 1828 states have call predecessors, (1855), 1843 states have call successors, (1855) [2021-11-20 22:47:43,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5732 states to 5732 states and 8072 transitions. [2021-11-20 22:47:43,290 INFO L78 Accepts]: Start accepts. Automaton has 5732 states and 8072 transitions. Word has length 187 [2021-11-20 22:47:43,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 22:47:43,293 INFO L470 AbstractCegarLoop]: Abstraction has 5732 states and 8072 transitions. [2021-11-20 22:47:43,294 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 3 states have call successors, (31), 3 states have call predecessors, (31), 1 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) [2021-11-20 22:47:43,294 INFO L276 IsEmpty]: Start isEmpty. Operand 5732 states and 8072 transitions. [2021-11-20 22:47:43,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2021-11-20 22:47:43,301 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 22:47:43,301 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 22:47:43,301 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-20 22:47:43,302 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 22:47:43,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 22:47:43,302 INFO L85 PathProgramCache]: Analyzing trace with hash 1908911268, now seen corresponding path program 1 times [2021-11-20 22:47:43,303 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 22:47:43,303 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [236923344] [2021-11-20 22:47:43,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 22:47:43,303 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 22:47:43,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 22:47:43,555 INFO L134 CoverageAnalysis]: Checked inductivity of 184 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 184 trivial. 0 not checked. [2021-11-20 22:47:43,556 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 22:47:43,556 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [236923344] [2021-11-20 22:47:43,556 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [236923344] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 22:47:43,556 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 22:47:43,557 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-20 22:47:43,557 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [670966066] [2021-11-20 22:47:43,557 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 22:47:43,558 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-20 22:47:43,558 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 22:47:43,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-20 22:47:43,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-20 22:47:43,559 INFO L87 Difference]: Start difference. First operand 5732 states and 8072 transitions. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 3 states have call successors, (31), 3 states have call predecessors, (31), 1 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) [2021-11-20 22:47:45,604 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:47:52,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 22:47:52,811 INFO L93 Difference]: Finished difference Result 10104 states and 14123 transitions. [2021-11-20 22:47:52,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-20 22:47:52,812 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 3 states have call successors, (31), 3 states have call predecessors, (31), 1 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) Word has length 186 [2021-11-20 22:47:52,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 22:47:52,854 INFO L225 Difference]: With dead ends: 10104 [2021-11-20 22:47:52,854 INFO L226 Difference]: Without dead ends: 5568 [2021-11-20 22:47:52,877 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 [2021-11-20 22:47:52,878 INFO L933 BasicCegarLoop]: 1903 mSDtfsCounter, 1540 mSDsluCounter, 5914 mSDsCounter, 0 mSdLazyCounter, 891 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1544 SdHoareTripleChecker+Valid, 7174 SdHoareTripleChecker+Invalid, 895 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 891 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.9s IncrementalHoareTripleChecker+Time [2021-11-20 22:47:52,879 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1544 Valid, 7174 Invalid, 895 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 891 Invalid, 1 Unknown, 0 Unchecked, 8.9s Time] [2021-11-20 22:47:52,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5568 states. [2021-11-20 22:47:53,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5568 to 5540. [2021-11-20 22:47:53,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5540 states, 3306 states have (on average 1.2770719903206291) internal successors, (4222), 3375 states have internal predecessors, (4222), 1769 states have call successors, (1769), 465 states have call predecessors, (1769), 464 states have return successors, (1780), 1757 states have call predecessors, (1780), 1768 states have call successors, (1780) [2021-11-20 22:47:53,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5540 states to 5540 states and 7771 transitions. [2021-11-20 22:47:53,214 INFO L78 Accepts]: Start accepts. Automaton has 5540 states and 7771 transitions. Word has length 186 [2021-11-20 22:47:53,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 22:47:53,214 INFO L470 AbstractCegarLoop]: Abstraction has 5540 states and 7771 transitions. [2021-11-20 22:47:53,215 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 3 states have call successors, (31), 3 states have call predecessors, (31), 1 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) [2021-11-20 22:47:53,215 INFO L276 IsEmpty]: Start isEmpty. Operand 5540 states and 7771 transitions. [2021-11-20 22:47:53,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2021-11-20 22:47:53,224 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 22:47:53,226 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 22:47:53,226 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-20 22:47:53,226 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 22:47:53,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 22:47:53,227 INFO L85 PathProgramCache]: Analyzing trace with hash -1146557114, now seen corresponding path program 1 times [2021-11-20 22:47:53,227 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 22:47:53,227 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1920901429] [2021-11-20 22:47:53,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 22:47:53,228 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 22:47:53,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 22:47:53,588 INFO L134 CoverageAnalysis]: Checked inductivity of 192 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2021-11-20 22:47:53,589 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 22:47:53,589 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1920901429] [2021-11-20 22:47:53,589 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1920901429] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 22:47:53,589 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1118389724] [2021-11-20 22:47:53,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 22:47:53,590 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 22:47:53,590 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04121598-be04-4c37-8149-1ec854d9299d/bin/utaipan-TEXQjIfE4P/z3 [2021-11-20 22:47:53,594 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04121598-be04-4c37-8149-1ec854d9299d/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 22:47:53,597 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04121598-be04-4c37-8149-1ec854d9299d/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-20 22:47:54,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 22:47:54,576 INFO L263 TraceCheckSpWp]: Trace formula consists of 3556 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-20 22:47:54,603 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 22:47:55,141 INFO L134 CoverageAnalysis]: Checked inductivity of 192 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 184 trivial. 0 not checked. [2021-11-20 22:47:55,141 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 22:47:55,141 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1118389724] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 22:47:55,142 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-20 22:47:55,142 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [8] total 13 [2021-11-20 22:47:55,142 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1478044694] [2021-11-20 22:47:55,142 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 22:47:55,143 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-20 22:47:55,143 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 22:47:55,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-20 22:47:55,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2021-11-20 22:47:55,144 INFO L87 Difference]: Start difference. First operand 5540 states and 7771 transitions. Second operand has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 5 states have internal predecessors, (74), 3 states have call successors, (32), 3 states have call predecessors, (32), 3 states have return successors, (28), 3 states have call predecessors, (28), 2 states have call successors, (28) [2021-11-20 22:47:57,191 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:48:13,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 22:48:13,129 INFO L93 Difference]: Finished difference Result 13006 states and 18244 transitions. [2021-11-20 22:48:13,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-20 22:48:13,130 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 5 states have internal predecessors, (74), 3 states have call successors, (32), 3 states have call predecessors, (32), 3 states have return successors, (28), 3 states have call predecessors, (28), 2 states have call successors, (28) Word has length 198 [2021-11-20 22:48:13,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 22:48:13,186 INFO L225 Difference]: With dead ends: 13006 [2021-11-20 22:48:13,186 INFO L226 Difference]: Without dead ends: 9148 [2021-11-20 22:48:13,207 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 214 GetRequests, 196 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=68, Invalid=312, Unknown=0, NotChecked=0, Total=380 [2021-11-20 22:48:13,208 INFO L933 BasicCegarLoop]: 2594 mSDtfsCounter, 1539 mSDsluCounter, 13513 mSDsCounter, 0 mSdLazyCounter, 2071 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1543 SdHoareTripleChecker+Valid, 14473 SdHoareTripleChecker+Invalid, 2073 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2071 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.6s IncrementalHoareTripleChecker+Time [2021-11-20 22:48:13,209 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1543 Valid, 14473 Invalid, 2073 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2071 Invalid, 1 Unknown, 0 Unchecked, 17.6s Time] [2021-11-20 22:48:13,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9148 states. [2021-11-20 22:48:13,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9148 to 9086. [2021-11-20 22:48:13,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9086 states, 5427 states have (on average 1.2782384374424176) internal successors, (6937), 5548 states have internal predecessors, (6937), 2888 states have call successors, (2888), 767 states have call predecessors, (2888), 770 states have return successors, (2917), 2864 states have call predecessors, (2917), 2887 states have call successors, (2917) [2021-11-20 22:48:13,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9086 states to 9086 states and 12742 transitions. [2021-11-20 22:48:13,720 INFO L78 Accepts]: Start accepts. Automaton has 9086 states and 12742 transitions. Word has length 198 [2021-11-20 22:48:13,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 22:48:13,721 INFO L470 AbstractCegarLoop]: Abstraction has 9086 states and 12742 transitions. [2021-11-20 22:48:13,721 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 5 states have internal predecessors, (74), 3 states have call successors, (32), 3 states have call predecessors, (32), 3 states have return successors, (28), 3 states have call predecessors, (28), 2 states have call successors, (28) [2021-11-20 22:48:13,721 INFO L276 IsEmpty]: Start isEmpty. Operand 9086 states and 12742 transitions. [2021-11-20 22:48:13,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2021-11-20 22:48:13,732 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 22:48:13,732 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 22:48:13,781 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04121598-be04-4c37-8149-1ec854d9299d/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-20 22:48:13,955 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04121598-be04-4c37-8149-1ec854d9299d/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 22:48:13,956 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 22:48:13,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 22:48:13,957 INFO L85 PathProgramCache]: Analyzing trace with hash -604278089, now seen corresponding path program 1 times [2021-11-20 22:48:13,957 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 22:48:13,957 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2048500887] [2021-11-20 22:48:13,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 22:48:13,957 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 22:48:14,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 22:48:14,238 INFO L134 CoverageAnalysis]: Checked inductivity of 191 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 184 trivial. 0 not checked. [2021-11-20 22:48:14,238 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 22:48:14,239 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2048500887] [2021-11-20 22:48:14,239 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2048500887] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 22:48:14,239 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2007415684] [2021-11-20 22:48:14,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 22:48:14,239 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 22:48:14,240 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04121598-be04-4c37-8149-1ec854d9299d/bin/utaipan-TEXQjIfE4P/z3 [2021-11-20 22:48:14,240 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04121598-be04-4c37-8149-1ec854d9299d/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 22:48:14,247 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04121598-be04-4c37-8149-1ec854d9299d/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-20 22:48:15,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 22:48:15,196 INFO L263 TraceCheckSpWp]: Trace formula consists of 3558 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-20 22:48:15,204 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 22:48:15,704 INFO L134 CoverageAnalysis]: Checked inductivity of 191 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 184 trivial. 0 not checked. [2021-11-20 22:48:15,704 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 22:48:15,705 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2007415684] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 22:48:15,705 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-20 22:48:15,705 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 14 [2021-11-20 22:48:15,705 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [181701404] [2021-11-20 22:48:15,705 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 22:48:15,706 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-20 22:48:15,706 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 22:48:15,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-20 22:48:15,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2021-11-20 22:48:15,706 INFO L87 Difference]: Start difference. First operand 9086 states and 12742 transitions. Second operand has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 5 states have internal predecessors, (75), 3 states have call successors, (32), 3 states have call predecessors, (32), 3 states have return successors, (28), 3 states have call predecessors, (28), 2 states have call successors, (28) [2021-11-20 22:48:17,738 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:48:35,412 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:48:35,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 22:48:35,911 INFO L93 Difference]: Finished difference Result 20120 states and 28206 transitions. [2021-11-20 22:48:35,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-20 22:48:35,911 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 5 states have internal predecessors, (75), 3 states have call successors, (32), 3 states have call predecessors, (32), 3 states have return successors, (28), 3 states have call predecessors, (28), 2 states have call successors, (28) Word has length 199 [2021-11-20 22:48:35,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 22:48:35,966 INFO L225 Difference]: With dead ends: 20120 [2021-11-20 22:48:35,966 INFO L226 Difference]: Without dead ends: 12716 [2021-11-20 22:48:35,999 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 215 GetRequests, 196 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=70, Invalid=350, Unknown=0, NotChecked=0, Total=420 [2021-11-20 22:48:36,000 INFO L933 BasicCegarLoop]: 2836 mSDtfsCounter, 1539 mSDsluCounter, 14617 mSDsCounter, 0 mSdLazyCounter, 2259 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1543 SdHoareTripleChecker+Valid, 15671 SdHoareTripleChecker+Invalid, 2261 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2259 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.9s IncrementalHoareTripleChecker+Time [2021-11-20 22:48:36,001 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1543 Valid, 15671 Invalid, 2261 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2259 Invalid, 1 Unknown, 0 Unchecked, 19.9s Time] [2021-11-20 22:48:36,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12716 states. [2021-11-20 22:48:36,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12716 to 12642. [2021-11-20 22:48:36,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12642 states, 7554 states have (on average 1.2785279322213396) internal successors, (9658), 7733 states have internal predecessors, (9658), 4007 states have call successors, (4007), 1069 states have call predecessors, (4007), 1080 states have return successors, (4060), 3969 states have call predecessors, (4060), 4006 states have call successors, (4060) [2021-11-20 22:48:36,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12642 states to 12642 states and 17725 transitions. [2021-11-20 22:48:36,607 INFO L78 Accepts]: Start accepts. Automaton has 12642 states and 17725 transitions. Word has length 199 [2021-11-20 22:48:36,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 22:48:36,608 INFO L470 AbstractCegarLoop]: Abstraction has 12642 states and 17725 transitions. [2021-11-20 22:48:36,608 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 5 states have internal predecessors, (75), 3 states have call successors, (32), 3 states have call predecessors, (32), 3 states have return successors, (28), 3 states have call predecessors, (28), 2 states have call successors, (28) [2021-11-20 22:48:36,608 INFO L276 IsEmpty]: Start isEmpty. Operand 12642 states and 17725 transitions. [2021-11-20 22:48:36,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2021-11-20 22:48:36,708 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 22:48:36,708 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 22:48:36,753 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04121598-be04-4c37-8149-1ec854d9299d/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-20 22:48:36,909 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04121598-be04-4c37-8149-1ec854d9299d/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2021-11-20 22:48:36,909 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 22:48:36,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 22:48:36,910 INFO L85 PathProgramCache]: Analyzing trace with hash 2041693229, now seen corresponding path program 1 times [2021-11-20 22:48:36,910 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 22:48:36,910 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [318871563] [2021-11-20 22:48:36,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 22:48:36,910 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 22:48:37,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 22:48:37,204 INFO L134 CoverageAnalysis]: Checked inductivity of 191 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 184 trivial. 0 not checked. [2021-11-20 22:48:37,205 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 22:48:37,205 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [318871563] [2021-11-20 22:48:37,205 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [318871563] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 22:48:37,205 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [290898808] [2021-11-20 22:48:37,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 22:48:37,206 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 22:48:37,206 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04121598-be04-4c37-8149-1ec854d9299d/bin/utaipan-TEXQjIfE4P/z3 [2021-11-20 22:48:37,207 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04121598-be04-4c37-8149-1ec854d9299d/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 22:48:37,226 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04121598-be04-4c37-8149-1ec854d9299d/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-20 22:48:38,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 22:48:38,157 INFO L263 TraceCheckSpWp]: Trace formula consists of 3560 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-20 22:48:38,165 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 22:48:38,609 INFO L134 CoverageAnalysis]: Checked inductivity of 191 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 184 trivial. 0 not checked. [2021-11-20 22:48:38,609 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 22:48:38,609 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [290898808] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 22:48:38,609 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-20 22:48:38,609 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 14 [2021-11-20 22:48:38,610 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1778544889] [2021-11-20 22:48:38,610 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 22:48:38,610 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-20 22:48:38,610 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 22:48:38,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-20 22:48:38,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2021-11-20 22:48:38,611 INFO L87 Difference]: Start difference. First operand 12642 states and 17725 transitions. Second operand has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 5 states have internal predecessors, (76), 3 states have call successors, (32), 3 states have call predecessors, (32), 3 states have return successors, (28), 3 states have call predecessors, (28), 2 states have call successors, (28) [2021-11-20 22:48:40,650 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:48:56,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 22:48:56,167 INFO L93 Difference]: Finished difference Result 27228 states and 38164 transitions. [2021-11-20 22:48:56,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-20 22:48:56,167 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 5 states have internal predecessors, (76), 3 states have call successors, (32), 3 states have call predecessors, (32), 3 states have return successors, (28), 3 states have call predecessors, (28), 2 states have call successors, (28) Word has length 200 [2021-11-20 22:48:56,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 22:48:56,242 INFO L225 Difference]: With dead ends: 27228 [2021-11-20 22:48:56,242 INFO L226 Difference]: Without dead ends: 16268 [2021-11-20 22:48:56,280 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 216 GetRequests, 197 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=70, Invalid=350, Unknown=0, NotChecked=0, Total=420 [2021-11-20 22:48:56,281 INFO L933 BasicCegarLoop]: 2836 mSDtfsCounter, 1539 mSDsluCounter, 14617 mSDsCounter, 0 mSdLazyCounter, 2259 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1543 SdHoareTripleChecker+Valid, 15671 SdHoareTripleChecker+Invalid, 2261 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2259 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.2s IncrementalHoareTripleChecker+Time [2021-11-20 22:48:56,281 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1543 Valid, 15671 Invalid, 2261 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2259 Invalid, 1 Unknown, 0 Unchecked, 17.2s Time] [2021-11-20 22:48:56,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16268 states. [2021-11-20 22:48:57,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16268 to 12644. [2021-11-20 22:48:57,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12644 states, 7556 states have (on average 1.278454208575966) internal successors, (9660), 7733 states have internal predecessors, (9660), 4007 states have call successors, (4007), 1069 states have call predecessors, (4007), 1080 states have return successors, (4060), 3971 states have call predecessors, (4060), 4006 states have call successors, (4060) [2021-11-20 22:48:57,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12644 states to 12644 states and 17727 transitions. [2021-11-20 22:48:57,134 INFO L78 Accepts]: Start accepts. Automaton has 12644 states and 17727 transitions. Word has length 200 [2021-11-20 22:48:57,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 22:48:57,135 INFO L470 AbstractCegarLoop]: Abstraction has 12644 states and 17727 transitions. [2021-11-20 22:48:57,135 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 5 states have internal predecessors, (76), 3 states have call successors, (32), 3 states have call predecessors, (32), 3 states have return successors, (28), 3 states have call predecessors, (28), 2 states have call successors, (28) [2021-11-20 22:48:57,136 INFO L276 IsEmpty]: Start isEmpty. Operand 12644 states and 17727 transitions. [2021-11-20 22:48:57,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2021-11-20 22:48:57,150 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 22:48:57,150 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 22:48:57,193 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04121598-be04-4c37-8149-1ec854d9299d/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-20 22:48:57,373 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04121598-be04-4c37-8149-1ec854d9299d/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2021-11-20 22:48:57,373 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 22:48:57,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 22:48:57,374 INFO L85 PathProgramCache]: Analyzing trace with hash 1182648894, now seen corresponding path program 1 times [2021-11-20 22:48:57,375 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 22:48:57,375 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [448477208] [2021-11-20 22:48:57,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 22:48:57,375 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 22:48:57,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 22:48:57,612 INFO L134 CoverageAnalysis]: Checked inductivity of 191 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 184 trivial. 0 not checked. [2021-11-20 22:48:57,613 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 22:48:57,613 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [448477208] [2021-11-20 22:48:57,613 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [448477208] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 22:48:57,613 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [277837819] [2021-11-20 22:48:57,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 22:48:57,614 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 22:48:57,614 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04121598-be04-4c37-8149-1ec854d9299d/bin/utaipan-TEXQjIfE4P/z3 [2021-11-20 22:48:57,614 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04121598-be04-4c37-8149-1ec854d9299d/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 22:48:57,615 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04121598-be04-4c37-8149-1ec854d9299d/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-20 22:48:58,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 22:48:58,382 INFO L263 TraceCheckSpWp]: Trace formula consists of 3562 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-20 22:48:58,387 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 22:48:58,810 INFO L134 CoverageAnalysis]: Checked inductivity of 191 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 184 trivial. 0 not checked. [2021-11-20 22:48:58,810 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 22:48:58,810 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [277837819] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 22:48:58,810 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-20 22:48:58,811 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 14 [2021-11-20 22:48:58,811 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1620129620] [2021-11-20 22:48:58,811 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 22:48:58,812 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-20 22:48:58,812 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 22:48:58,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-20 22:48:58,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2021-11-20 22:48:58,812 INFO L87 Difference]: Start difference. First operand 12644 states and 17727 transitions. Second operand has 7 states, 7 states have (on average 11.0) internal successors, (77), 5 states have internal predecessors, (77), 3 states have call successors, (32), 3 states have call predecessors, (32), 3 states have return successors, (28), 3 states have call predecessors, (28), 2 states have call successors, (28) [2021-11-20 22:49:00,857 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:49:17,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 22:49:17,448 INFO L93 Difference]: Finished difference Result 27234 states and 38170 transitions. [2021-11-20 22:49:17,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-20 22:49:17,448 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 5 states have internal predecessors, (77), 3 states have call successors, (32), 3 states have call predecessors, (32), 3 states have return successors, (28), 3 states have call predecessors, (28), 2 states have call successors, (28) Word has length 201 [2021-11-20 22:49:17,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 22:49:17,521 INFO L225 Difference]: With dead ends: 27234 [2021-11-20 22:49:17,521 INFO L226 Difference]: Without dead ends: 16272 [2021-11-20 22:49:17,559 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 217 GetRequests, 198 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=350, Unknown=0, NotChecked=0, Total=420 [2021-11-20 22:49:17,560 INFO L933 BasicCegarLoop]: 2836 mSDtfsCounter, 1539 mSDsluCounter, 14617 mSDsCounter, 0 mSdLazyCounter, 2259 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1543 SdHoareTripleChecker+Valid, 15671 SdHoareTripleChecker+Invalid, 2261 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2259 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.2s IncrementalHoareTripleChecker+Time [2021-11-20 22:49:17,560 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1543 Valid, 15671 Invalid, 2261 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2259 Invalid, 1 Unknown, 0 Unchecked, 18.2s Time] [2021-11-20 22:49:17,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16272 states. [2021-11-20 22:49:18,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16272 to 12646. [2021-11-20 22:49:18,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12646 states, 7558 states have (on average 1.2783805239481345) internal successors, (9662), 7733 states have internal predecessors, (9662), 4007 states have call successors, (4007), 1069 states have call predecessors, (4007), 1080 states have return successors, (4060), 3973 states have call predecessors, (4060), 4006 states have call successors, (4060) [2021-11-20 22:49:18,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12646 states to 12646 states and 17729 transitions. [2021-11-20 22:49:18,287 INFO L78 Accepts]: Start accepts. Automaton has 12646 states and 17729 transitions. Word has length 201 [2021-11-20 22:49:18,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 22:49:18,288 INFO L470 AbstractCegarLoop]: Abstraction has 12646 states and 17729 transitions. [2021-11-20 22:49:18,288 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 5 states have internal predecessors, (77), 3 states have call successors, (32), 3 states have call predecessors, (32), 3 states have return successors, (28), 3 states have call predecessors, (28), 2 states have call successors, (28) [2021-11-20 22:49:18,288 INFO L276 IsEmpty]: Start isEmpty. Operand 12646 states and 17729 transitions. [2021-11-20 22:49:18,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2021-11-20 22:49:18,301 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 22:49:18,301 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 22:49:18,343 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04121598-be04-4c37-8149-1ec854d9299d/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-20 22:49:18,525 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04121598-be04-4c37-8149-1ec854d9299d/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 22:49:18,525 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 22:49:18,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 22:49:18,526 INFO L85 PathProgramCache]: Analyzing trace with hash 1932416516, now seen corresponding path program 1 times [2021-11-20 22:49:18,526 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 22:49:18,526 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1428667525] [2021-11-20 22:49:18,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 22:49:18,526 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 22:49:18,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 22:49:18,846 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 232 trivial. 0 not checked. [2021-11-20 22:49:18,846 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 22:49:18,846 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1428667525] [2021-11-20 22:49:18,847 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1428667525] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 22:49:18,847 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 22:49:18,847 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-20 22:49:18,847 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [477522216] [2021-11-20 22:49:18,847 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 22:49:18,848 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 22:49:18,848 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 22:49:18,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 22:49:18,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 22:49:18,849 INFO L87 Difference]: Start difference. First operand 12646 states and 17729 transitions. Second operand has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2021-11-20 22:49:20,896 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:49:24,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 22:49:24,320 INFO L93 Difference]: Finished difference Result 32990 states and 46057 transitions. [2021-11-20 22:49:24,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 22:49:24,321 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 201 [2021-11-20 22:49:24,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 22:49:24,403 INFO L225 Difference]: With dead ends: 32990 [2021-11-20 22:49:24,404 INFO L226 Difference]: Without dead ends: 20372 [2021-11-20 22:49:24,452 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 [2021-11-20 22:49:24,454 INFO L933 BasicCegarLoop]: 2319 mSDtfsCounter, 1337 mSDsluCounter, 1668 mSDsCounter, 0 mSdLazyCounter, 537 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1337 SdHoareTripleChecker+Valid, 3789 SdHoareTripleChecker+Invalid, 539 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 537 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2021-11-20 22:49:24,455 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1337 Valid, 3789 Invalid, 539 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 537 Invalid, 1 Unknown, 0 Unchecked, 5.1s Time] [2021-11-20 22:49:24,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20372 states. [2021-11-20 22:49:25,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20372 to 20355. [2021-11-20 22:49:25,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20355 states, 12168 states have (on average 1.2765450361604207) internal successors, (15533), 12491 states have internal predecessors, (15533), 6362 states have call successors, (6362), 1801 states have call predecessors, (6362), 1824 states have return successors, (6441), 6288 states have call predecessors, (6441), 6361 states have call successors, (6441) [2021-11-20 22:49:25,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20355 states to 20355 states and 28336 transitions. [2021-11-20 22:49:25,467 INFO L78 Accepts]: Start accepts. Automaton has 20355 states and 28336 transitions. Word has length 201 [2021-11-20 22:49:25,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 22:49:25,469 INFO L470 AbstractCegarLoop]: Abstraction has 20355 states and 28336 transitions. [2021-11-20 22:49:25,469 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2021-11-20 22:49:25,469 INFO L276 IsEmpty]: Start isEmpty. Operand 20355 states and 28336 transitions. [2021-11-20 22:49:25,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2021-11-20 22:49:25,480 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 22:49:25,481 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 22:49:25,481 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-20 22:49:25,481 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 22:49:25,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 22:49:25,483 INFO L85 PathProgramCache]: Analyzing trace with hash 747889871, now seen corresponding path program 1 times [2021-11-20 22:49:25,483 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 22:49:25,483 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1734711020] [2021-11-20 22:49:25,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 22:49:25,483 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 22:49:25,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 22:49:25,706 INFO L134 CoverageAnalysis]: Checked inductivity of 212 backedges. 18 proven. 8 refuted. 0 times theorem prover too weak. 186 trivial. 0 not checked. [2021-11-20 22:49:25,706 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 22:49:25,706 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1734711020] [2021-11-20 22:49:25,707 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1734711020] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 22:49:25,707 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [592697621] [2021-11-20 22:49:25,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 22:49:25,707 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 22:49:25,707 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04121598-be04-4c37-8149-1ec854d9299d/bin/utaipan-TEXQjIfE4P/z3 [2021-11-20 22:49:25,709 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04121598-be04-4c37-8149-1ec854d9299d/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 22:49:26,011 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04121598-be04-4c37-8149-1ec854d9299d/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-20 22:49:26,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 22:49:26,944 INFO L263 TraceCheckSpWp]: Trace formula consists of 3629 conjuncts, 12 conjunts are in the unsatisfiable core [2021-11-20 22:49:26,951 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 22:49:27,493 INFO L134 CoverageAnalysis]: Checked inductivity of 212 backedges. 14 proven. 7 refuted. 0 times theorem prover too weak. 191 trivial. 0 not checked. [2021-11-20 22:49:27,494 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 22:49:28,166 INFO L134 CoverageAnalysis]: Checked inductivity of 212 backedges. 17 proven. 3 refuted. 0 times theorem prover too weak. 192 trivial. 0 not checked. [2021-11-20 22:49:28,167 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [592697621] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-20 22:49:28,167 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [70163929] [2021-11-20 22:49:28,197 INFO L159 IcfgInterpreter]: Started Sifa with 118 locations of interest [2021-11-20 22:49:28,197 INFO L166 IcfgInterpreter]: Building call graph [2021-11-20 22:49:28,204 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-20 22:49:28,209 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-20 22:49:28,210 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-20 22:49:32,447 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:49:32,449 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:49:32,451 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:49:32,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:49:32,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:49:32,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:49:32,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:49:32,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:49:32,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:49:32,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:49:32,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:49:32,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:49:32,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:49:32,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:49:32,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:49:32,467 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:49:32,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:49:32,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:49:32,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:49:32,472 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:49:32,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:49:32,497 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 21 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 53 [2021-11-20 22:49:33,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:49:33,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:49:33,702 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:49:33,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:49:33,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:49:34,629 INFO L244 Elim1Store]: Index analysis took 1585 ms