./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ppp--ppp_generic.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0f8a17c6 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a4e73e8-f020-4201-a5c4-0a56d4b785dc/bin/uautomizer-ZXIjhQolGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a4e73e8-f020-4201-a5c4-0a56d4b785dc/bin/uautomizer-ZXIjhQolGL/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a4e73e8-f020-4201-a5c4-0a56d4b785dc/bin/uautomizer-ZXIjhQolGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a4e73e8-f020-4201-a5c4-0a56d4b785dc/bin/uautomizer-ZXIjhQolGL/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ppp--ppp_generic.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a4e73e8-f020-4201-a5c4-0a56d4b785dc/bin/uautomizer-ZXIjhQolGL/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a4e73e8-f020-4201-a5c4-0a56d4b785dc/bin/uautomizer-ZXIjhQolGL --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 Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash ed18c341b13cb38f54b1bbde59f9cd5a73bcebd88430e5620ebca0060f7baed5 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 04:59:16,025 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 04:59:16,027 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 04:59:16,060 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 04:59:16,060 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 04:59:16,062 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 04:59:16,064 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 04:59:16,066 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 04:59:16,073 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 04:59:16,075 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 04:59:16,077 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 04:59:16,080 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 04:59:16,081 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 04:59:16,086 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 04:59:16,088 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 04:59:16,092 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 04:59:16,097 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 04:59:16,104 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 04:59:16,107 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 04:59:16,110 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 04:59:16,121 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 04:59:16,123 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 04:59:16,125 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 04:59:16,126 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 04:59:16,132 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 04:59:16,134 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 04:59:16,135 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 04:59:16,136 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 04:59:16,138 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 04:59:16,139 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 04:59:16,140 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 04:59:16,142 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 04:59:16,144 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 04:59:16,145 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 04:59:16,147 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 04:59:16,148 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 04:59:16,149 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 04:59:16,149 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 04:59:16,149 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 04:59:16,150 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 04:59:16,151 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 04:59:16,152 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a4e73e8-f020-4201-a5c4-0a56d4b785dc/bin/uautomizer-ZXIjhQolGL/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-19 04:59:16,201 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 04:59:16,201 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 04:59:16,202 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-19 04:59:16,202 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-19 04:59:16,204 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 04:59:16,204 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 04:59:16,205 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-19 04:59:16,206 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-19 04:59:16,206 INFO L138 SettingsManager]: * Use SBE=true [2021-11-19 04:59:16,206 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 04:59:16,207 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-19 04:59:16,208 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 04:59:16,208 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 04:59:16,208 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 04:59:16,209 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 04:59:16,209 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 04:59:16,209 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 04:59:16,209 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 04:59:16,210 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 04:59:16,210 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-19 04:59:16,210 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 04:59:16,210 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 04:59:16,211 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 04:59:16,211 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 04:59:16,211 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 04:59:16,211 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-19 04:59:16,212 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-19 04:59:16,212 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-19 04:59:16,212 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-19 04:59:16,214 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 04:59:16,215 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 04:59:16,215 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a4e73e8-f020-4201-a5c4-0a56d4b785dc/bin/uautomizer-ZXIjhQolGL/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a4e73e8-f020-4201-a5c4-0a56d4b785dc/bin/uautomizer-ZXIjhQolGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ed18c341b13cb38f54b1bbde59f9cd5a73bcebd88430e5620ebca0060f7baed5 [2021-11-19 04:59:16,491 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 04:59:16,515 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 04:59:16,519 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 04:59:16,521 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 04:59:16,522 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 04:59:16,523 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a4e73e8-f020-4201-a5c4-0a56d4b785dc/bin/uautomizer-ZXIjhQolGL/../../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ppp--ppp_generic.ko-entry_point.cil.out.i [2021-11-19 04:59:16,612 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a4e73e8-f020-4201-a5c4-0a56d4b785dc/bin/uautomizer-ZXIjhQolGL/data/53834b247/7d54eaf028ba4c29946b10d9980f8b23/FLAGf9c475935 [2021-11-19 04:59:17,537 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 04:59:17,538 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a4e73e8-f020-4201-a5c4-0a56d4b785dc/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ppp--ppp_generic.ko-entry_point.cil.out.i [2021-11-19 04:59:17,597 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a4e73e8-f020-4201-a5c4-0a56d4b785dc/bin/uautomizer-ZXIjhQolGL/data/53834b247/7d54eaf028ba4c29946b10d9980f8b23/FLAGf9c475935 [2021-11-19 04:59:17,938 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a4e73e8-f020-4201-a5c4-0a56d4b785dc/bin/uautomizer-ZXIjhQolGL/data/53834b247/7d54eaf028ba4c29946b10d9980f8b23 [2021-11-19 04:59:17,940 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 04:59:17,942 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 04:59:17,943 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 04:59:17,943 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 04:59:17,959 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 04:59:17,960 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:59:17" (1/1) ... [2021-11-19 04:59:17,961 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@767e91ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:59:17, skipping insertion in model container [2021-11-19 04:59:17,961 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:59:17" (1/1) ... [2021-11-19 04:59:17,968 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 04:59:18,099 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 04:59:19,946 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_7a4e73e8-f020-4201-a5c4-0a56d4b785dc/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ppp--ppp_generic.ko-entry_point.cil.out.i[198800,198813] [2021-11-19 04:59:20,884 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 04:59:20,954 INFO L203 MainTranslator]: Completed pre-run [2021-11-19 04:59:21,154 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_7a4e73e8-f020-4201-a5c4-0a56d4b785dc/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ppp--ppp_generic.ko-entry_point.cil.out.i[198800,198813] [2021-11-19 04:59:21,458 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 04:59:21,634 INFO L208 MainTranslator]: Completed translation [2021-11-19 04:59:21,636 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:59:21 WrapperNode [2021-11-19 04:59:21,637 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 04:59:21,638 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-19 04:59:21,639 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-19 04:59:21,639 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-19 04:59:21,647 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:59:21" (1/1) ... [2021-11-19 04:59:21,767 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:59:21" (1/1) ... [2021-11-19 04:59:22,025 INFO L137 Inliner]: procedures = 375, calls = 2229, calls flagged for inlining = 193, calls inlined = 191, statements flattened = 6400 [2021-11-19 04:59:22,026 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-19 04:59:22,026 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-19 04:59:22,027 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-19 04:59:22,027 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-19 04:59:22,035 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:59:21" (1/1) ... [2021-11-19 04:59:22,036 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:59:21" (1/1) ... [2021-11-19 04:59:22,063 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:59:21" (1/1) ... [2021-11-19 04:59:22,063 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:59:21" (1/1) ... [2021-11-19 04:59:22,200 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:59:21" (1/1) ... [2021-11-19 04:59:22,239 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:59:21" (1/1) ... [2021-11-19 04:59:22,273 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:59:21" (1/1) ... [2021-11-19 04:59:22,314 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-19 04:59:22,315 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-19 04:59:22,316 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-19 04:59:22,316 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-19 04:59:22,317 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:59:21" (1/1) ... [2021-11-19 04:59:22,325 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 04:59:22,337 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a4e73e8-f020-4201-a5c4-0a56d4b785dc/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:59:22,354 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a4e73e8-f020-4201-a5c4-0a56d4b785dc/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-19 04:59:22,458 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a4e73e8-f020-4201-a5c4-0a56d4b785dc/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-19 04:59:22,485 INFO L130 BoogieDeclarations]: Found specification of procedure sk_unattached_filter_destroy [2021-11-19 04:59:22,485 INFO L138 BoogieDeclarations]: Found implementation of procedure sk_unattached_filter_destroy [2021-11-19 04:59:22,486 INFO L130 BoogieDeclarations]: Found specification of procedure find_comp_entry [2021-11-19 04:59:22,486 INFO L138 BoogieDeclarations]: Found implementation of procedure find_comp_entry [2021-11-19 04:59:22,486 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2021-11-19 04:59:22,486 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2021-11-19 04:59:22,486 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_write_lock_bh [2021-11-19 04:59:22,486 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_write_lock_bh [2021-11-19 04:59:22,487 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2021-11-19 04:59:22,487 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_write_unlock_bh [2021-11-19 04:59:22,487 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_write_unlock_bh [2021-11-19 04:59:22,487 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-19 04:59:22,487 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-19 04:59:22,487 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-19 04:59:22,488 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-19 04:59:22,488 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_head_init [2021-11-19 04:59:22,488 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_head_init [2021-11-19 04:59:22,488 INFO L130 BoogieDeclarations]: Found specification of procedure skb_push [2021-11-19 04:59:22,488 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_push [2021-11-19 04:59:22,488 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_xmit_process [2021-11-19 04:59:22,489 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_xmit_process [2021-11-19 04:59:22,489 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_unlink [2021-11-19 04:59:22,489 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_unlink [2021-11-19 04:59:22,489 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_shutdown_interface [2021-11-19 04:59:22,489 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_shutdown_interface [2021-11-19 04:59:22,489 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_destroy_interface [2021-11-19 04:59:22,490 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_destroy_interface [2021-11-19 04:59:22,490 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-11-19 04:59:22,490 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-11-19 04:59:22,490 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2021-11-19 04:59:22,490 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2021-11-19 04:59:22,490 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2021-11-19 04:59:22,490 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2021-11-19 04:59:22,491 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-19 04:59:22,491 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-19 04:59:22,491 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_read_lock_bh [2021-11-19 04:59:22,491 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_read_lock_bh [2021-11-19 04:59:22,491 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_push [2021-11-19 04:59:22,491 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_push [2021-11-19 04:59:22,492 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_alloc [2021-11-19 04:59:22,492 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_alloc [2021-11-19 04:59:22,492 INFO L130 BoogieDeclarations]: Found specification of procedure unit_find [2021-11-19 04:59:22,492 INFO L138 BoogieDeclarations]: Found implementation of procedure unit_find [2021-11-19 04:59:22,492 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-11-19 04:59:22,492 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-11-19 04:59:22,493 INFO L130 BoogieDeclarations]: Found specification of procedure pskb_expand_head [2021-11-19 04:59:22,493 INFO L138 BoogieDeclarations]: Found implementation of procedure pskb_expand_head [2021-11-19 04:59:22,493 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-11-19 04:59:22,493 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-11-19 04:59:22,493 INFO L130 BoogieDeclarations]: Found specification of procedure put_unaligned_be16 [2021-11-19 04:59:22,494 INFO L138 BoogieDeclarations]: Found implementation of procedure put_unaligned_be16 [2021-11-19 04:59:22,494 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2021-11-19 04:59:22,494 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2021-11-19 04:59:22,494 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-19 04:59:22,495 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-19 04:59:22,495 INFO L130 BoogieDeclarations]: Found specification of procedure init_ppp_file [2021-11-19 04:59:22,496 INFO L138 BoogieDeclarations]: Found implementation of procedure init_ppp_file [2021-11-19 04:59:22,497 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-19 04:59:22,497 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-19 04:59:22,497 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-11-19 04:59:22,497 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-11-19 04:59:22,498 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-11-19 04:59:22,498 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-11-19 04:59:22,498 INFO L130 BoogieDeclarations]: Found specification of procedure skb_peek [2021-11-19 04:59:22,498 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_peek [2021-11-19 04:59:22,499 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_chrdev_19 [2021-11-19 04:59:22,499 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_chrdev_19 [2021-11-19 04:59:22,499 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_release [2021-11-19 04:59:22,500 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_release [2021-11-19 04:59:22,500 INFO L130 BoogieDeclarations]: Found specification of procedure get_filter [2021-11-19 04:59:22,500 INFO L138 BoogieDeclarations]: Found implementation of procedure get_filter [2021-11-19 04:59:22,500 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-19 04:59:22,501 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-11-19 04:59:22,501 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-11-19 04:59:22,501 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_empty [2021-11-19 04:59:22,501 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_empty [2021-11-19 04:59:22,502 INFO L130 BoogieDeclarations]: Found specification of procedure module_put [2021-11-19 04:59:22,502 INFO L138 BoogieDeclarations]: Found implementation of procedure module_put [2021-11-19 04:59:22,502 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-19 04:59:22,502 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_remove [2021-11-19 04:59:22,502 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_remove [2021-11-19 04:59:22,502 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_get_stats64 [2021-11-19 04:59:22,503 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_get_stats64 [2021-11-19 04:59:22,503 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec_and_test [2021-11-19 04:59:22,503 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec_and_test [2021-11-19 04:59:22,503 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2021-11-19 04:59:22,503 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2021-11-19 04:59:22,503 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_send_frame [2021-11-19 04:59:22,504 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_send_frame [2021-11-19 04:59:22,504 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-19 04:59:22,504 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-19 04:59:22,505 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-19 04:59:22,505 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-19 04:59:22,505 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_receive_error [2021-11-19 04:59:22,505 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_receive_error [2021-11-19 04:59:22,506 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_find_unit [2021-11-19 04:59:22,506 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_find_unit [2021-11-19 04:59:22,506 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2021-11-19 04:59:22,506 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2021-11-19 04:59:22,507 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2021-11-19 04:59:22,508 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2021-11-19 04:59:22,508 INFO L130 BoogieDeclarations]: Found specification of procedure sk_unattached_filter_create [2021-11-19 04:59:22,508 INFO L138 BoogieDeclarations]: Found implementation of procedure sk_unattached_filter_create [2021-11-19 04:59:22,508 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-11-19 04:59:22,508 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-11-19 04:59:22,508 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2021-11-19 04:59:22,509 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2021-11-19 04:59:22,509 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_channel_push [2021-11-19 04:59:22,509 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_channel_push [2021-11-19 04:59:22,509 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2021-11-19 04:59:22,509 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2021-11-19 04:59:22,509 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-11-19 04:59:22,510 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-11-19 04:59:22,510 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-11-19 04:59:22,510 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-11-19 04:59:22,510 INFO L130 BoogieDeclarations]: Found specification of procedure find_compressor [2021-11-19 04:59:22,510 INFO L138 BoogieDeclarations]: Found implementation of procedure find_compressor [2021-11-19 04:59:22,511 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_pernet [2021-11-19 04:59:22,512 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_pernet [2021-11-19 04:59:22,514 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-11-19 04:59:22,515 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-11-19 04:59:22,515 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_bh [2021-11-19 04:59:22,515 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_bh [2021-11-19 04:59:22,516 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-19 04:59:22,517 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-11-19 04:59:22,518 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-11-19 04:59:22,518 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2021-11-19 04:59:22,518 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2021-11-19 04:59:22,523 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_pernet_device [2021-11-19 04:59:22,524 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_pernet_device [2021-11-19 04:59:22,524 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-11-19 04:59:22,524 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-11-19 04:59:22,524 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_disconnect_channel [2021-11-19 04:59:22,524 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_disconnect_channel [2021-11-19 04:59:22,524 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_net_ioctl [2021-11-19 04:59:22,525 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_net_ioctl [2021-11-19 04:59:22,525 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-19 04:59:22,525 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_read_unlock_bh [2021-11-19 04:59:22,525 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_read_unlock_bh [2021-11-19 04:59:22,525 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2021-11-19 04:59:22,525 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2021-11-19 04:59:22,525 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-19 04:59:22,526 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-11-19 04:59:22,526 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-11-19 04:59:22,526 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headroom [2021-11-19 04:59:22,526 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headroom [2021-11-19 04:59:22,526 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_output_wakeup [2021-11-19 04:59:22,526 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_output_wakeup [2021-11-19 04:59:22,526 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_exit_net [2021-11-19 04:59:22,527 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_exit_net [2021-11-19 04:59:22,527 INFO L130 BoogieDeclarations]: Found specification of procedure slhc_free [2021-11-19 04:59:22,527 INFO L138 BoogieDeclarations]: Found implementation of procedure slhc_free [2021-11-19 04:59:22,527 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free [2021-11-19 04:59:22,527 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free [2021-11-19 04:59:22,527 INFO L130 BoogieDeclarations]: Found specification of procedure skb_cloned [2021-11-19 04:59:22,527 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_cloned [2021-11-19 04:59:22,528 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_do_recv [2021-11-19 04:59:22,528 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_do_recv [2021-11-19 04:59:22,528 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_unregister_channel [2021-11-19 04:59:22,528 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_unregister_channel [2021-11-19 04:59:22,528 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_be16 [2021-11-19 04:59:22,528 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_be16 [2021-11-19 04:59:22,528 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_alloc_skb_16 [2021-11-19 04:59:22,529 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_alloc_skb_16 [2021-11-19 04:59:22,529 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_is_watching [2021-11-19 04:59:22,529 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_is_watching [2021-11-19 04:59:22,529 INFO L130 BoogieDeclarations]: Found specification of procedure proto_to_npindex [2021-11-19 04:59:22,529 INFO L138 BoogieDeclarations]: Found implementation of procedure proto_to_npindex [2021-11-19 04:59:22,529 INFO L130 BoogieDeclarations]: Found specification of procedure net_generic [2021-11-19 04:59:22,529 INFO L138 BoogieDeclarations]: Found implementation of procedure net_generic [2021-11-19 04:59:22,530 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_held [2021-11-19 04:59:22,530 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_held [2021-11-19 04:59:22,530 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-19 04:59:22,530 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-19 04:59:22,530 INFO L130 BoogieDeclarations]: Found specification of procedure unit_put [2021-11-19 04:59:22,530 INFO L138 BoogieDeclarations]: Found implementation of procedure unit_put [2021-11-19 04:59:22,530 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_receive_nonmp_frame [2021-11-19 04:59:22,530 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_receive_nonmp_frame [2021-11-19 04:59:22,531 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_purge [2021-11-19 04:59:22,531 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_purge [2021-11-19 04:59:22,531 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-19 04:59:22,531 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2021-11-19 04:59:22,532 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2021-11-19 04:59:22,532 INFO L130 BoogieDeclarations]: Found specification of procedure skb_pull [2021-11-19 04:59:22,532 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_pull [2021-11-19 04:59:22,532 INFO L130 BoogieDeclarations]: Found specification of procedure net_ratelimit [2021-11-19 04:59:22,532 INFO L138 BoogieDeclarations]: Found implementation of procedure net_ratelimit [2021-11-19 04:59:22,532 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_write [2021-11-19 04:59:22,532 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_write [2021-11-19 04:59:22,532 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-19 04:59:22,533 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-19 04:59:22,533 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_ccp_closed [2021-11-19 04:59:22,534 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_ccp_closed [2021-11-19 04:59:22,534 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_open [2021-11-19 04:59:22,535 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_open [2021-11-19 04:59:22,535 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-19 04:59:22,535 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2021-11-19 04:59:22,535 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2021-11-19 04:59:22,535 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2021-11-19 04:59:22,535 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2021-11-19 04:59:22,535 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-19 04:59:22,535 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2021-11-19 04:59:22,536 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2021-11-19 04:59:22,536 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-19 04:59:22,536 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_rcu_suspicious [2021-11-19 04:59:22,536 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_rcu_suspicious [2021-11-19 04:59:22,536 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-19 04:59:22,536 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~$Pointer$ [2021-11-19 04:59:22,536 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~$Pointer$ [2021-11-19 04:59:22,537 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-19 04:59:22,537 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-19 04:59:22,537 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2021-11-19 04:59:22,537 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2021-11-19 04:59:22,537 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headlen [2021-11-19 04:59:22,537 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headlen [2021-11-19 04:59:22,537 INFO L130 BoogieDeclarations]: Found specification of procedure idr_alloc [2021-11-19 04:59:22,538 INFO L138 BoogieDeclarations]: Found implementation of procedure idr_alloc [2021-11-19 04:59:22,538 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec [2021-11-19 04:59:22,538 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec [2021-11-19 04:59:22,538 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2021-11-19 04:59:22,538 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2021-11-19 04:59:22,538 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2021-11-19 04:59:22,538 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2021-11-19 04:59:22,538 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_long_read [2021-11-19 04:59:22,539 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_long_read [2021-11-19 04:59:22,539 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2021-11-19 04:59:22,539 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2021-11-19 04:59:22,539 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_tail [2021-11-19 04:59:22,539 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_tail [2021-11-19 04:59:22,539 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2021-11-19 04:59:22,539 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2021-11-19 04:59:22,540 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_register_net_channel [2021-11-19 04:59:22,540 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_register_net_channel [2021-11-19 04:59:22,540 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-11-19 04:59:22,540 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-11-19 04:59:22,540 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_mp_explode [2021-11-19 04:59:22,540 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_mp_explode [2021-11-19 04:59:22,540 INFO L130 BoogieDeclarations]: Found specification of procedure pskb_may_pull [2021-11-19 04:59:22,541 INFO L138 BoogieDeclarations]: Found implementation of procedure pskb_may_pull [2021-11-19 04:59:22,541 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-11-19 04:59:22,541 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-11-19 04:59:22,541 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_ioctl [2021-11-19 04:59:22,541 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_ioctl [2021-11-19 04:59:22,541 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_ccp_peek [2021-11-19 04:59:22,541 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_ccp_peek [2021-11-19 04:59:22,542 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_alloc_skb_44 [2021-11-19 04:59:22,546 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_alloc_skb_44 [2021-11-19 04:59:22,546 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_poll [2021-11-19 04:59:22,546 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_poll [2021-11-19 04:59:22,546 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-19 04:59:22,547 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_destroy_channel [2021-11-19 04:59:22,547 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_destroy_channel [2021-11-19 04:59:22,547 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2021-11-19 04:59:22,547 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2021-11-19 04:59:22,547 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-19 04:59:22,549 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-19 04:59:22,549 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2021-11-19 04:59:22,549 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2021-11-19 04:59:22,549 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_bh [2021-11-19 04:59:22,549 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_bh [2021-11-19 04:59:23,498 INFO L236 CfgBuilder]: Building ICFG [2021-11-19 04:59:23,504 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-19 04:59:24,111 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-19 04:59:29,506 INFO L277 CfgBuilder]: Performing block encoding [2021-11-19 04:59:29,532 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-19 04:59:29,532 INFO L301 CfgBuilder]: Removed 3 assume(true) statements. [2021-11-19 04:59:29,538 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:59:29 BoogieIcfgContainer [2021-11-19 04:59:29,538 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-19 04:59:29,540 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-19 04:59:29,540 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-19 04:59:29,543 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-19 04:59:29,544 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 04:59:17" (1/3) ... [2021-11-19 04:59:29,544 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3252700e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:59:29, skipping insertion in model container [2021-11-19 04:59:29,544 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:59:21" (2/3) ... [2021-11-19 04:59:29,545 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3252700e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:59:29, skipping insertion in model container [2021-11-19 04:59:29,545 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:59:29" (3/3) ... [2021-11-19 04:59:29,546 INFO L111 eAbstractionObserver]: Analyzing ICFG 205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ppp--ppp_generic.ko-entry_point.cil.out.i [2021-11-19 04:59:29,552 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-19 04:59:29,552 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-19 04:59:29,613 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-19 04:59:29,620 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=PETRI_NET, 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 [2021-11-19 04:59:29,621 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-19 04:59:29,689 INFO L276 IsEmpty]: Start isEmpty. Operand has 2163 states, 1526 states have (on average 1.374180865006553) internal successors, (2097), 1585 states have internal predecessors, (2097), 515 states have call successors, (515), 121 states have call predecessors, (515), 120 states have return successors, (510), 497 states have call predecessors, (510), 510 states have call successors, (510) [2021-11-19 04:59:29,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-11-19 04:59:29,704 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 04:59:29,704 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 04:59:29,705 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 04:59:29,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:59:29,711 INFO L85 PathProgramCache]: Analyzing trace with hash 1166428172, now seen corresponding path program 1 times [2021-11-19 04:59:29,720 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:59:29,721 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1988807669] [2021-11-19 04:59:29,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:59:29,722 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:59:30,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:59:30,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-19 04:59:30,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:59:30,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-19 04:59:30,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:59:30,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-19 04:59:30,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:59:30,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-11-19 04:59:30,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:59:30,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-11-19 04:59:30,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:59:30,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-11-19 04:59:30,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:59:30,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-11-19 04:59:30,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:59:30,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-11-19 04:59:30,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:59:30,671 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2021-11-19 04:59:30,672 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 04:59:30,672 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1988807669] [2021-11-19 04:59:30,673 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1988807669] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 04:59:30,673 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 04:59:30,673 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-19 04:59:30,675 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [319366641] [2021-11-19 04:59:30,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 04:59:30,681 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-19 04:59:30,681 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 04:59:30,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-19 04:59:30,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-19 04:59:30,716 INFO L87 Difference]: Start difference. First operand has 2163 states, 1526 states have (on average 1.374180865006553) internal successors, (2097), 1585 states have internal predecessors, (2097), 515 states have call successors, (515), 121 states have call predecessors, (515), 120 states have return successors, (510), 497 states have call predecessors, (510), 510 states have call successors, (510) Second operand has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 5 states have internal predecessors, (31), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2021-11-19 04:59:42,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 04:59:42,455 INFO L93 Difference]: Finished difference Result 7078 states and 10935 transitions. [2021-11-19 04:59:42,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-19 04:59:42,458 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 5 states have internal predecessors, (31), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) Word has length 69 [2021-11-19 04:59:42,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 04:59:42,533 INFO L225 Difference]: With dead ends: 7078 [2021-11-19 04:59:42,533 INFO L226 Difference]: Without dead ends: 4873 [2021-11-19 04:59:42,556 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2021-11-19 04:59:42,560 INFO L933 BasicCegarLoop]: 3749 mSDtfsCounter, 4513 mSDsluCounter, 10814 mSDsCounter, 0 mSdLazyCounter, 4220 mSolverCounterSat, 1594 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4886 SdHoareTripleChecker+Valid, 14563 SdHoareTripleChecker+Invalid, 5814 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 1594 IncrementalHoareTripleChecker+Valid, 4220 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.8s IncrementalHoareTripleChecker+Time [2021-11-19 04:59:42,562 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4886 Valid, 14563 Invalid, 5814 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [1594 Valid, 4220 Invalid, 0 Unknown, 0 Unchecked, 10.8s Time] [2021-11-19 04:59:42,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4873 states. [2021-11-19 04:59:42,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4873 to 4383. [2021-11-19 04:59:42,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4383 states, 3101 states have (on average 1.366010964205095) internal successors, (4236), 3214 states have internal predecessors, (4236), 1025 states have call successors, (1025), 239 states have call predecessors, (1025), 256 states have return successors, (1194), 1010 states have call predecessors, (1194), 1024 states have call successors, (1194) [2021-11-19 04:59:43,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4383 states to 4383 states and 6455 transitions. [2021-11-19 04:59:43,012 INFO L78 Accepts]: Start accepts. Automaton has 4383 states and 6455 transitions. Word has length 69 [2021-11-19 04:59:43,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 04:59:43,015 INFO L470 AbstractCegarLoop]: Abstraction has 4383 states and 6455 transitions. [2021-11-19 04:59:43,016 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 5 states have internal predecessors, (31), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2021-11-19 04:59:43,016 INFO L276 IsEmpty]: Start isEmpty. Operand 4383 states and 6455 transitions. [2021-11-19 04:59:43,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-11-19 04:59:43,039 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 04:59:43,039 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 04:59:43,040 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-19 04:59:43,040 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 04:59:43,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:59:43,044 INFO L85 PathProgramCache]: Analyzing trace with hash -1147589655, now seen corresponding path program 1 times [2021-11-19 04:59:43,044 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:59:43,044 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [774960810] [2021-11-19 04:59:43,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:59:43,044 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:59:43,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:59:43,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-19 04:59:43,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:59:43,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-19 04:59:43,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:59:43,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-19 04:59:43,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:59:43,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-11-19 04:59:43,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:59:43,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-11-19 04:59:43,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:59:43,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-11-19 04:59:43,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:59:43,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-11-19 04:59:43,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:59:43,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-11-19 04:59:43,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:59:43,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-19 04:59:43,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:59:43,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-11-19 04:59:43,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:59:43,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-11-19 04:59:43,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:59:43,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-19 04:59:43,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:59:43,499 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2021-11-19 04:59:43,499 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 04:59:43,499 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [774960810] [2021-11-19 04:59:43,500 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [774960810] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 04:59:43,500 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 04:59:43,501 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-19 04:59:43,501 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1330504570] [2021-11-19 04:59:43,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 04:59:43,503 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 04:59:43,503 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 04:59:43,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 04:59:43,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-19 04:59:43,505 INFO L87 Difference]: Start difference. First operand 4383 states and 6455 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 3 states have internal predecessors, (59), 2 states have call successors, (13), 4 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-11-19 04:59:58,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 04:59:58,675 INFO L93 Difference]: Finished difference Result 14573 states and 22266 transitions. [2021-11-19 04:59:58,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-19 04:59:58,675 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 3 states have internal predecessors, (59), 2 states have call successors, (13), 4 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 105 [2021-11-19 04:59:58,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 04:59:58,790 INFO L225 Difference]: With dead ends: 14573 [2021-11-19 04:59:58,790 INFO L226 Difference]: Without dead ends: 10210 [2021-11-19 04:59:58,824 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-11-19 04:59:58,827 INFO L933 BasicCegarLoop]: 3698 mSDtfsCounter, 6511 mSDsluCounter, 5260 mSDsCounter, 0 mSdLazyCounter, 4709 mSolverCounterSat, 3347 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6838 SdHoareTripleChecker+Valid, 8958 SdHoareTripleChecker+Invalid, 8056 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3347 IncrementalHoareTripleChecker+Valid, 4709 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.2s IncrementalHoareTripleChecker+Time [2021-11-19 04:59:58,828 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6838 Valid, 8958 Invalid, 8056 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3347 Valid, 4709 Invalid, 0 Unknown, 0 Unchecked, 14.2s Time] [2021-11-19 04:59:58,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10210 states. [2021-11-19 04:59:59,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10210 to 8739. [2021-11-19 04:59:59,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8739 states, 6145 states have (on average 1.3549227013832383) internal successors, (8326), 6389 states have internal predecessors, (8326), 2045 states have call successors, (2045), 467 states have call predecessors, (2045), 548 states have return successors, (2783), 2053 states have call predecessors, (2783), 2044 states have call successors, (2783) [2021-11-19 04:59:59,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8739 states to 8739 states and 13154 transitions. [2021-11-19 04:59:59,550 INFO L78 Accepts]: Start accepts. Automaton has 8739 states and 13154 transitions. Word has length 105 [2021-11-19 04:59:59,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 04:59:59,552 INFO L470 AbstractCegarLoop]: Abstraction has 8739 states and 13154 transitions. [2021-11-19 04:59:59,553 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 3 states have internal predecessors, (59), 2 states have call successors, (13), 4 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-11-19 04:59:59,554 INFO L276 IsEmpty]: Start isEmpty. Operand 8739 states and 13154 transitions. [2021-11-19 04:59:59,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-11-19 04:59:59,562 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 04:59:59,562 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 04:59:59,563 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-19 04:59:59,563 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 04:59:59,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:59:59,563 INFO L85 PathProgramCache]: Analyzing trace with hash -1215083750, now seen corresponding path program 1 times [2021-11-19 04:59:59,564 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:59:59,564 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1190536046] [2021-11-19 04:59:59,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:59:59,564 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:59:59,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:59:59,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-19 04:59:59,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:59:59,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-19 04:59:59,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:59:59,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-19 04:59:59,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:59:59,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-11-19 04:59:59,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:59:59,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-11-19 04:59:59,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:59:59,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-11-19 04:59:59,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:59:59,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-11-19 04:59:59,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:59:59,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-11-19 04:59:59,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:59:59,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-11-19 04:59:59,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:59:59,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-19 04:59:59,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:59:59,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-19 04:59:59,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:59:59,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-19 04:59:59,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:59:59,909 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2021-11-19 04:59:59,910 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 04:59:59,910 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1190536046] [2021-11-19 04:59:59,910 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1190536046] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 04:59:59,910 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 04:59:59,910 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-19 04:59:59,911 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [583038330] [2021-11-19 04:59:59,911 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 04:59:59,911 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-19 04:59:59,912 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 04:59:59,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-19 04:59:59,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-11-19 04:59:59,912 INFO L87 Difference]: Start difference. First operand 8739 states and 13154 transitions. Second operand has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 3 states have internal predecessors, (59), 2 states have call successors, (13), 4 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-11-19 05:00:01,956 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 05:00:04,804 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 05:00:19,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 05:00:19,358 INFO L93 Difference]: Finished difference Result 25654 states and 39179 transitions. [2021-11-19 05:00:19,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-19 05:00:19,364 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 3 states have internal predecessors, (59), 2 states have call successors, (13), 4 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 108 [2021-11-19 05:00:19,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 05:00:19,520 INFO L225 Difference]: With dead ends: 25654 [2021-11-19 05:00:19,521 INFO L226 Difference]: Without dead ends: 16935 [2021-11-19 05:00:19,588 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-11-19 05:00:19,589 INFO L933 BasicCegarLoop]: 4580 mSDtfsCounter, 3092 mSDsluCounter, 7839 mSDsCounter, 0 mSdLazyCounter, 5908 mSolverCounterSat, 1120 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3380 SdHoareTripleChecker+Valid, 12419 SdHoareTripleChecker+Invalid, 7030 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1120 IncrementalHoareTripleChecker+Valid, 5908 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.6s IncrementalHoareTripleChecker+Time [2021-11-19 05:00:19,590 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3380 Valid, 12419 Invalid, 7030 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1120 Valid, 5908 Invalid, 2 Unknown, 0 Unchecked, 18.6s Time] [2021-11-19 05:00:19,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16935 states. [2021-11-19 05:00:20,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16935 to 14784. [2021-11-19 05:00:20,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14784 states, 10413 states have (on average 1.3509075194468454) internal successors, (14067), 10863 states have internal predecessors, (14067), 3359 states have call successors, (3359), 865 states have call predecessors, (3359), 1011 states have return successors, (4661), 3369 states have call predecessors, (4661), 3358 states have call successors, (4661) [2021-11-19 05:00:20,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14784 states to 14784 states and 22087 transitions. [2021-11-19 05:00:20,682 INFO L78 Accepts]: Start accepts. Automaton has 14784 states and 22087 transitions. Word has length 108 [2021-11-19 05:00:20,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 05:00:20,683 INFO L470 AbstractCegarLoop]: Abstraction has 14784 states and 22087 transitions. [2021-11-19 05:00:20,683 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 3 states have internal predecessors, (59), 2 states have call successors, (13), 4 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-11-19 05:00:20,683 INFO L276 IsEmpty]: Start isEmpty. Operand 14784 states and 22087 transitions. [2021-11-19 05:00:20,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2021-11-19 05:00:20,697 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 05:00:20,697 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 11, 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] [2021-11-19 05:00:20,697 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-19 05:00:20,697 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 05:00:20,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 05:00:20,698 INFO L85 PathProgramCache]: Analyzing trace with hash -1577830905, now seen corresponding path program 1 times [2021-11-19 05:00:20,698 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 05:00:20,698 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [595293941] [2021-11-19 05:00:20,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 05:00:20,699 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 05:00:20,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:00:20,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-19 05:00:20,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:00:20,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-19 05:00:20,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:00:20,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-19 05:00:20,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:00:20,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-11-19 05:00:20,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:00:20,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-11-19 05:00:20,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:00:20,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-11-19 05:00:20,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:00:20,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-11-19 05:00:20,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:00:20,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-11-19 05:00:20,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:00:20,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-11-19 05:00:20,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:00:20,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-19 05:00:20,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:00:20,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-11-19 05:00:20,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:00:20,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-11-19 05:00:21,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:00:21,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-19 05:00:21,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:00:21,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-19 05:00:21,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:00:21,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-19 05:00:21,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:00:21,061 INFO L134 CoverageAnalysis]: Checked inductivity of 238 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 223 trivial. 0 not checked. [2021-11-19 05:00:21,062 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 05:00:21,062 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [595293941] [2021-11-19 05:00:21,062 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [595293941] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 05:00:21,062 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 05:00:21,062 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-19 05:00:21,062 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1218599761] [2021-11-19 05:00:21,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 05:00:21,063 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-19 05:00:21,063 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 05:00:21,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-19 05:00:21,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-11-19 05:00:21,064 INFO L87 Difference]: Start difference. First operand 14784 states and 22087 transitions. Second operand has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (16), 5 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-11-19 05:00:23,103 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 [] [2021-11-19 05:00:25,232 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 05:00:27,359 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 05:00:36,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 05:00:36,684 INFO L93 Difference]: Finished difference Result 31679 states and 48084 transitions. [2021-11-19 05:00:36,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 05:00:36,685 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (16), 5 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 142 [2021-11-19 05:00:36,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 05:00:36,808 INFO L225 Difference]: With dead ends: 31679 [2021-11-19 05:00:36,808 INFO L226 Difference]: Without dead ends: 16915 [2021-11-19 05:00:36,876 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-11-19 05:00:36,878 INFO L933 BasicCegarLoop]: 2893 mSDtfsCounter, 3780 mSDsluCounter, 3547 mSDsCounter, 0 mSdLazyCounter, 3043 mSolverCounterSat, 1053 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4112 SdHoareTripleChecker+Valid, 6440 SdHoareTripleChecker+Invalid, 4099 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1053 IncrementalHoareTripleChecker+Valid, 3043 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.9s IncrementalHoareTripleChecker+Time [2021-11-19 05:00:36,878 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4112 Valid, 6440 Invalid, 4099 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1053 Valid, 3043 Invalid, 3 Unknown, 0 Unchecked, 14.9s Time] [2021-11-19 05:00:36,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16915 states. [2021-11-19 05:00:37,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16915 to 14784. [2021-11-19 05:00:37,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14784 states, 10413 states have (on average 1.3501392490156534) internal successors, (14059), 10863 states have internal predecessors, (14059), 3359 states have call successors, (3359), 865 states have call predecessors, (3359), 1011 states have return successors, (4661), 3369 states have call predecessors, (4661), 3358 states have call successors, (4661) [2021-11-19 05:00:37,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14784 states to 14784 states and 22079 transitions. [2021-11-19 05:00:37,954 INFO L78 Accepts]: Start accepts. Automaton has 14784 states and 22079 transitions. Word has length 142 [2021-11-19 05:00:37,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 05:00:37,955 INFO L470 AbstractCegarLoop]: Abstraction has 14784 states and 22079 transitions. [2021-11-19 05:00:37,955 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (16), 5 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-11-19 05:00:37,955 INFO L276 IsEmpty]: Start isEmpty. Operand 14784 states and 22079 transitions. [2021-11-19 05:00:37,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2021-11-19 05:00:37,964 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 05:00:37,964 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 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] [2021-11-19 05:00:37,964 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-19 05:00:37,964 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 05:00:38,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 05:00:38,106 INFO L85 PathProgramCache]: Analyzing trace with hash 179241227, now seen corresponding path program 1 times [2021-11-19 05:00:38,107 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 05:00:38,107 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [575429196] [2021-11-19 05:00:38,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 05:00:38,107 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 05:00:38,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:00:38,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-19 05:00:38,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:00:38,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-19 05:00:38,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:00:38,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-19 05:00:38,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:00:38,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-11-19 05:00:38,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:00:38,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-11-19 05:00:38,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:00:38,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-11-19 05:00:38,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:00:38,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-11-19 05:00:38,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:00:38,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-11-19 05:00:38,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:00:38,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-11-19 05:00:38,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:00:38,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-19 05:00:38,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:00:38,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-11-19 05:00:38,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:00:38,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-11-19 05:00:38,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:00:38,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2021-11-19 05:00:38,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:00:38,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-19 05:00:38,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:00:38,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-19 05:00:38,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:00:38,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-19 05:00:38,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:00:38,587 INFO L134 CoverageAnalysis]: Checked inductivity of 282 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2021-11-19 05:00:38,588 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 05:00:38,588 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [575429196] [2021-11-19 05:00:38,588 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [575429196] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 05:00:38,588 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 05:00:38,589 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-19 05:00:38,589 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1209180406] [2021-11-19 05:00:38,589 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 05:00:38,590 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-19 05:00:38,590 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 05:00:38,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-19 05:00:38,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-11-19 05:00:38,591 INFO L87 Difference]: Start difference. First operand 14784 states and 22079 transitions. Second operand has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 3 states have internal predecessors, (83), 3 states have call successors, (17), 5 states have call predecessors, (17), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2021-11-19 05:00:40,630 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 05:00:42,711 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 05:00:44,790 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 05:01:00,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 05:01:00,750 INFO L93 Difference]: Finished difference Result 39062 states and 59398 transitions. [2021-11-19 05:01:00,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-19 05:01:00,751 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 3 states have internal predecessors, (83), 3 states have call successors, (17), 5 states have call predecessors, (17), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 149 [2021-11-19 05:01:00,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 05:01:01,000 INFO L225 Difference]: With dead ends: 39062 [2021-11-19 05:01:01,001 INFO L226 Difference]: Without dead ends: 24298 [2021-11-19 05:01:01,052 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-11-19 05:01:01,053 INFO L933 BasicCegarLoop]: 3947 mSDtfsCounter, 3483 mSDsluCounter, 6876 mSDsCounter, 0 mSdLazyCounter, 5234 mSolverCounterSat, 1322 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3775 SdHoareTripleChecker+Valid, 10823 SdHoareTripleChecker+Invalid, 6559 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1322 IncrementalHoareTripleChecker+Valid, 5234 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.2s IncrementalHoareTripleChecker+Time [2021-11-19 05:01:01,059 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3775 Valid, 10823 Invalid, 6559 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1322 Valid, 5234 Invalid, 3 Unknown, 0 Unchecked, 21.2s Time] [2021-11-19 05:01:01,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24298 states. [2021-11-19 05:01:02,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24298 to 21097. [2021-11-19 05:01:02,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21097 states, 14885 states have (on average 1.3476654350016795) internal successors, (20060), 15549 states have internal predecessors, (20060), 4721 states have call successors, (4721), 1275 states have call predecessors, (4721), 1490 states have return successors, (6617), 4733 states have call predecessors, (6617), 4720 states have call successors, (6617) [2021-11-19 05:01:02,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21097 states to 21097 states and 31398 transitions. [2021-11-19 05:01:02,524 INFO L78 Accepts]: Start accepts. Automaton has 21097 states and 31398 transitions. Word has length 149 [2021-11-19 05:01:02,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 05:01:02,525 INFO L470 AbstractCegarLoop]: Abstraction has 21097 states and 31398 transitions. [2021-11-19 05:01:02,526 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 3 states have internal predecessors, (83), 3 states have call successors, (17), 5 states have call predecessors, (17), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2021-11-19 05:01:02,526 INFO L276 IsEmpty]: Start isEmpty. Operand 21097 states and 31398 transitions. [2021-11-19 05:01:02,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2021-11-19 05:01:02,532 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 05:01:02,533 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 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] [2021-11-19 05:01:02,533 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-19 05:01:02,533 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 05:01:02,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 05:01:02,534 INFO L85 PathProgramCache]: Analyzing trace with hash 421842475, now seen corresponding path program 1 times [2021-11-19 05:01:02,534 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 05:01:02,534 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1258710075] [2021-11-19 05:01:02,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 05:01:02,534 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 05:01:02,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:01:02,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-19 05:01:02,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:01:02,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-19 05:01:02,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:01:02,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-19 05:01:02,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:01:02,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-11-19 05:01:02,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:01:02,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-11-19 05:01:02,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:01:02,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-11-19 05:01:02,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:01:02,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-11-19 05:01:02,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:01:03,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-11-19 05:01:03,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:01:03,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-11-19 05:01:03,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:01:03,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-19 05:01:03,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:01:03,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-11-19 05:01:03,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:01:03,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-11-19 05:01:03,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:01:03,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-11-19 05:01:03,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:01:03,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-19 05:01:03,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:01:03,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-19 05:01:03,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:01:03,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-19 05:01:03,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:01:03,605 INFO L134 CoverageAnalysis]: Checked inductivity of 282 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 245 trivial. 0 not checked. [2021-11-19 05:01:03,605 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 05:01:03,605 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1258710075] [2021-11-19 05:01:03,605 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1258710075] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 05:01:03,606 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 05:01:03,606 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-19 05:01:03,606 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1278703383] [2021-11-19 05:01:03,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 05:01:03,606 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-19 05:01:03,607 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 05:01:03,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-19 05:01:03,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2021-11-19 05:01:03,607 INFO L87 Difference]: Start difference. First operand 21097 states and 31398 transitions. Second operand has 10 states, 10 states have (on average 8.3) internal successors, (83), 5 states have internal predecessors, (83), 2 states have call successors, (17), 5 states have call predecessors, (17), 3 states have return successors, (16), 4 states have call predecessors, (16), 1 states have call successors, (16) [2021-11-19 05:01:05,682 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 05:01:07,757 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 05:01:19,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 05:01:19,902 INFO L93 Difference]: Finished difference Result 45337 states and 70621 transitions. [2021-11-19 05:01:19,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-19 05:01:19,902 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 8.3) internal successors, (83), 5 states have internal predecessors, (83), 2 states have call successors, (17), 5 states have call predecessors, (17), 3 states have return successors, (16), 4 states have call predecessors, (16), 1 states have call successors, (16) Word has length 149 [2021-11-19 05:01:19,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 05:01:20,067 INFO L225 Difference]: With dead ends: 45337 [2021-11-19 05:01:20,067 INFO L226 Difference]: Without dead ends: 24260 [2021-11-19 05:01:20,175 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2021-11-19 05:01:20,177 INFO L933 BasicCegarLoop]: 2938 mSDtfsCounter, 1662 mSDsluCounter, 14988 mSDsCounter, 0 mSdLazyCounter, 5925 mSolverCounterSat, 1320 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1767 SdHoareTripleChecker+Valid, 17926 SdHoareTripleChecker+Invalid, 7247 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1320 IncrementalHoareTripleChecker+Valid, 5925 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.1s IncrementalHoareTripleChecker+Time [2021-11-19 05:01:20,177 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1767 Valid, 17926 Invalid, 7247 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1320 Valid, 5925 Invalid, 2 Unknown, 0 Unchecked, 15.1s Time] [2021-11-19 05:01:20,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24260 states. [2021-11-19 05:01:21,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24260 to 21070. [2021-11-19 05:01:21,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21070 states, 14849 states have (on average 1.3462859451814937) internal successors, (19991), 15519 states have internal predecessors, (19991), 4721 states have call successors, (4721), 1275 states have call predecessors, (4721), 1499 states have return successors, (6688), 4736 states have call predecessors, (6688), 4720 states have call successors, (6688) [2021-11-19 05:01:21,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21070 states to 21070 states and 31400 transitions. [2021-11-19 05:01:21,855 INFO L78 Accepts]: Start accepts. Automaton has 21070 states and 31400 transitions. Word has length 149 [2021-11-19 05:01:21,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 05:01:21,856 INFO L470 AbstractCegarLoop]: Abstraction has 21070 states and 31400 transitions. [2021-11-19 05:01:21,856 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.3) internal successors, (83), 5 states have internal predecessors, (83), 2 states have call successors, (17), 5 states have call predecessors, (17), 3 states have return successors, (16), 4 states have call predecessors, (16), 1 states have call successors, (16) [2021-11-19 05:01:21,856 INFO L276 IsEmpty]: Start isEmpty. Operand 21070 states and 31400 transitions. [2021-11-19 05:01:21,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2021-11-19 05:01:21,865 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 05:01:21,865 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 11, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 05:01:21,865 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-19 05:01:21,866 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 05:01:21,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 05:01:21,866 INFO L85 PathProgramCache]: Analyzing trace with hash -2032814841, now seen corresponding path program 1 times [2021-11-19 05:01:21,866 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 05:01:21,867 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [170931629] [2021-11-19 05:01:21,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 05:01:21,867 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 05:01:21,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:01:22,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-19 05:01:22,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:01:22,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-19 05:01:22,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:01:22,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-19 05:01:22,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:01:22,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-11-19 05:01:22,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:01:22,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-11-19 05:01:22,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:01:22,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-11-19 05:01:22,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:01:22,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-11-19 05:01:22,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:01:22,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-11-19 05:01:22,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:01:22,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-11-19 05:01:22,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:01:22,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-19 05:01:22,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:01:22,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-11-19 05:01:22,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:01:22,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-11-19 05:01:22,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:01:22,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-11-19 05:01:22,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:01:22,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-19 05:01:22,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:01:22,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-19 05:01:22,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:01:22,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-19 05:01:22,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:01:22,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-19 05:01:22,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:01:22,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-19 05:01:22,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:01:22,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-19 05:01:22,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:01:22,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-11-19 05:01:22,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:01:22,678 INFO L134 CoverageAnalysis]: Checked inductivity of 286 backedges. 37 proven. 3 refuted. 0 times theorem prover too weak. 246 trivial. 0 not checked. [2021-11-19 05:01:22,678 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 05:01:22,678 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [170931629] [2021-11-19 05:01:22,678 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [170931629] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-19 05:01:22,679 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1243638994] [2021-11-19 05:01:22,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 05:01:22,679 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 05:01:22,679 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a4e73e8-f020-4201-a5c4-0a56d4b785dc/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 05:01:22,685 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a4e73e8-f020-4201-a5c4-0a56d4b785dc/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 05:01:22,704 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a4e73e8-f020-4201-a5c4-0a56d4b785dc/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-19 05:01:23,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:01:23,627 INFO L263 TraceCheckSpWp]: Trace formula consists of 2540 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 05:01:23,643 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 05:01:24,085 INFO L134 CoverageAnalysis]: Checked inductivity of 286 backedges. 95 proven. 0 refuted. 0 times theorem prover too weak. 191 trivial. 0 not checked. [2021-11-19 05:01:24,085 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-19 05:01:24,086 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1243638994] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 05:01:24,086 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 05:01:24,086 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [16] total 17 [2021-11-19 05:01:24,086 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [497934117] [2021-11-19 05:01:24,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 05:01:24,087 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-19 05:01:24,087 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 05:01:24,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 05:01:24,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=237, Unknown=0, NotChecked=0, Total=272 [2021-11-19 05:01:24,088 INFO L87 Difference]: Start difference. First operand 21070 states and 31400 transitions. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 3 states have call successors, (21), 3 states have call predecessors, (21), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-11-19 05:01:26,115 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 [] [2021-11-19 05:01:27,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 05:01:27,453 INFO L93 Difference]: Finished difference Result 42147 states and 62790 transitions. [2021-11-19 05:01:27,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 05:01:27,454 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 3 states have call successors, (21), 3 states have call predecessors, (21), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 170 [2021-11-19 05:01:27,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 05:01:27,599 INFO L225 Difference]: With dead ends: 42147 [2021-11-19 05:01:27,600 INFO L226 Difference]: Without dead ends: 21035 [2021-11-19 05:01:27,814 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 223 GetRequests, 208 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=237, Unknown=0, NotChecked=0, Total=272 [2021-11-19 05:01:27,815 INFO L933 BasicCegarLoop]: 3329 mSDtfsCounter, 2952 mSDsluCounter, 312 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2952 SdHoareTripleChecker+Valid, 3641 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2021-11-19 05:01:27,815 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2952 Valid, 3641 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 1 Unknown, 0 Unchecked, 2.2s Time] [2021-11-19 05:01:27,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21035 states. [2021-11-19 05:01:28,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21035 to 21014. [2021-11-19 05:01:28,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21014 states, 14802 states have (on average 1.3468450209431158) internal successors, (19936), 15467 states have internal predecessors, (19936), 4707 states have call successors, (4707), 1280 states have call predecessors, (4707), 1504 states have return successors, (6645), 4722 states have call predecessors, (6645), 4706 states have call successors, (6645) [2021-11-19 05:01:29,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21014 states to 21014 states and 31288 transitions. [2021-11-19 05:01:29,115 INFO L78 Accepts]: Start accepts. Automaton has 21014 states and 31288 transitions. Word has length 170 [2021-11-19 05:01:29,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 05:01:29,116 INFO L470 AbstractCegarLoop]: Abstraction has 21014 states and 31288 transitions. [2021-11-19 05:01:29,116 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 3 states have call successors, (21), 3 states have call predecessors, (21), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-11-19 05:01:29,116 INFO L276 IsEmpty]: Start isEmpty. Operand 21014 states and 31288 transitions. [2021-11-19 05:01:29,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2021-11-19 05:01:29,128 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 05:01:29,129 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 11, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 05:01:29,177 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a4e73e8-f020-4201-a5c4-0a56d4b785dc/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-19 05:01:29,353 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a4e73e8-f020-4201-a5c4-0a56d4b785dc/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 05:01:29,353 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 05:01:29,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 05:01:29,353 INFO L85 PathProgramCache]: Analyzing trace with hash -495753428, now seen corresponding path program 1 times [2021-11-19 05:01:29,353 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 05:01:29,354 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [839138963] [2021-11-19 05:01:29,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 05:01:29,354 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 05:01:29,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:01:29,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-19 05:01:29,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:01:29,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-19 05:01:29,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:01:29,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-19 05:01:29,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:01:29,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-11-19 05:01:29,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:01:29,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-11-19 05:01:29,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:01:29,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-11-19 05:01:29,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:01:29,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-11-19 05:01:29,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:01:29,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-11-19 05:01:29,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:01:29,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-11-19 05:01:29,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:01:29,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-19 05:01:29,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:01:29,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-11-19 05:01:29,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:01:29,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-11-19 05:01:29,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:01:29,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-11-19 05:01:29,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:01:29,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-19 05:01:29,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:01:29,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-19 05:01:29,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:01:29,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-19 05:01:29,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:01:30,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-19 05:01:30,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:01:30,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-19 05:01:30,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:01:30,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-19 05:01:30,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:01:30,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-11-19 05:01:30,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:01:30,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-11-19 05:01:30,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:01:30,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2021-11-19 05:01:30,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:01:30,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2021-11-19 05:01:30,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:01:30,173 INFO L134 CoverageAnalysis]: Checked inductivity of 282 backedges. 30 proven. 3 refuted. 0 times theorem prover too weak. 249 trivial. 0 not checked. [2021-11-19 05:01:30,173 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 05:01:30,174 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [839138963] [2021-11-19 05:01:30,174 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [839138963] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-19 05:01:30,174 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1146213628] [2021-11-19 05:01:30,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 05:01:30,174 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 05:01:30,175 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a4e73e8-f020-4201-a5c4-0a56d4b785dc/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 05:01:30,175 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a4e73e8-f020-4201-a5c4-0a56d4b785dc/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 05:01:30,181 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a4e73e8-f020-4201-a5c4-0a56d4b785dc/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-19 05:01:31,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:01:31,107 INFO L263 TraceCheckSpWp]: Trace formula consists of 2615 conjuncts, 19 conjunts are in the unsatisfiable core [2021-11-19 05:01:31,126 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 05:01:31,766 INFO L134 CoverageAnalysis]: Checked inductivity of 282 backedges. 91 proven. 0 refuted. 0 times theorem prover too weak. 191 trivial. 0 not checked. [2021-11-19 05:01:31,766 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-19 05:01:31,766 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1146213628] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 05:01:31,766 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 05:01:31,766 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [17] total 20 [2021-11-19 05:01:31,767 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1073602332] [2021-11-19 05:01:31,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 05:01:31,767 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 05:01:31,768 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 05:01:31,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 05:01:31,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=339, Unknown=0, NotChecked=0, Total=380 [2021-11-19 05:01:31,768 INFO L87 Difference]: Start difference. First operand 21014 states and 31288 transitions. Second operand has 5 states, 5 states have (on average 20.6) internal successors, (103), 5 states have internal predecessors, (103), 3 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2021-11-19 05:01:33,809 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 [] [2021-11-19 05:01:35,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 05:01:35,112 INFO L93 Difference]: Finished difference Result 41784 states and 62251 transitions. [2021-11-19 05:01:35,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-19 05:01:35,112 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.6) internal successors, (103), 5 states have internal predecessors, (103), 3 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) Word has length 184 [2021-11-19 05:01:35,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 05:01:35,228 INFO L225 Difference]: With dead ends: 41784 [2021-11-19 05:01:35,228 INFO L226 Difference]: Without dead ends: 21009 [2021-11-19 05:01:35,301 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 245 GetRequests, 225 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=51, Invalid=411, Unknown=0, NotChecked=0, Total=462 [2021-11-19 05:01:35,302 INFO L933 BasicCegarLoop]: 3075 mSDtfsCounter, 3 mSDsluCounter, 9214 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 12289 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2021-11-19 05:01:35,303 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 12289 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 1 Unknown, 0 Unchecked, 2.1s Time] [2021-11-19 05:01:35,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21009 states. [2021-11-19 05:01:36,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21009 to 21009. [2021-11-19 05:01:36,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21009 states, 14799 states have (on average 1.3468477599837827) internal successors, (19932), 15464 states have internal predecessors, (19932), 4706 states have call successors, (4706), 1279 states have call predecessors, (4706), 1503 states have return successors, (6644), 4721 states have call predecessors, (6644), 4705 states have call successors, (6644) [2021-11-19 05:01:36,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21009 states to 21009 states and 31282 transitions. [2021-11-19 05:01:36,508 INFO L78 Accepts]: Start accepts. Automaton has 21009 states and 31282 transitions. Word has length 184 [2021-11-19 05:01:36,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 05:01:36,509 INFO L470 AbstractCegarLoop]: Abstraction has 21009 states and 31282 transitions. [2021-11-19 05:01:36,509 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.6) internal successors, (103), 5 states have internal predecessors, (103), 3 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2021-11-19 05:01:36,509 INFO L276 IsEmpty]: Start isEmpty. Operand 21009 states and 31282 transitions. [2021-11-19 05:01:36,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2021-11-19 05:01:36,519 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 05:01:36,519 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 11, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 05:01:36,561 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a4e73e8-f020-4201-a5c4-0a56d4b785dc/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-19 05:01:36,733 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a4e73e8-f020-4201-a5c4-0a56d4b785dc/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 05:01:36,734 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 05:01:36,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 05:01:36,734 INFO L85 PathProgramCache]: Analyzing trace with hash 833615698, now seen corresponding path program 1 times [2021-11-19 05:01:36,734 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 05:01:36,734 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [454353218] [2021-11-19 05:01:36,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 05:01:36,735 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 05:01:36,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:01:36,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-19 05:01:36,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:01:37,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-19 05:01:37,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:01:37,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-19 05:01:37,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:01:37,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-11-19 05:01:37,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:01:37,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-11-19 05:01:37,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:01:37,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-11-19 05:01:37,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:01:37,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-11-19 05:01:37,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:01:37,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-11-19 05:01:37,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:01:37,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-11-19 05:01:37,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:01:37,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-19 05:01:37,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:01:37,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-11-19 05:01:37,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:01:37,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-11-19 05:01:37,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:01:37,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-19 05:01:37,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:01:37,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-11-19 05:01:37,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:01:37,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-19 05:01:37,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:01:37,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-19 05:01:37,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:01:37,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-19 05:01:37,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:01:37,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-19 05:01:37,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:01:37,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-19 05:01:37,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:01:37,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-19 05:01:37,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:01:37,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-19 05:01:37,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:01:37,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-11-19 05:01:37,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:01:37,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2021-11-19 05:01:37,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:01:37,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-11-19 05:01:37,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:01:37,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-11-19 05:01:37,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:01:37,799 INFO L134 CoverageAnalysis]: Checked inductivity of 287 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 257 trivial. 0 not checked. [2021-11-19 05:01:37,799 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 05:01:37,799 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [454353218] [2021-11-19 05:01:37,799 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [454353218] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 05:01:37,800 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 05:01:37,800 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-11-19 05:01:37,800 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [270293890] [2021-11-19 05:01:37,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 05:01:37,801 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-11-19 05:01:37,801 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 05:01:37,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-11-19 05:01:37,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2021-11-19 05:01:37,803 INFO L87 Difference]: Start difference. First operand 21009 states and 31282 transitions. Second operand has 15 states, 15 states have (on average 7.0) internal successors, (105), 8 states have internal predecessors, (105), 3 states have call successors, (25), 7 states have call predecessors, (25), 4 states have return successors, (24), 5 states have call predecessors, (24), 3 states have call successors, (24) [2021-11-19 05:01:39,844 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 [] [2021-11-19 05:01:41,935 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 05:01:43,518 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.58s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 05:01:45,615 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 05:01:57,211 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-19 05:02:25,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 05:02:25,521 INFO L93 Difference]: Finished difference Result 50125 states and 79689 transitions. [2021-11-19 05:02:25,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-19 05:02:25,522 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 7.0) internal successors, (105), 8 states have internal predecessors, (105), 3 states have call successors, (25), 7 states have call predecessors, (25), 4 states have return successors, (24), 5 states have call predecessors, (24), 3 states have call successors, (24) Word has length 197 [2021-11-19 05:02:25,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 05:02:25,691 INFO L225 Difference]: With dead ends: 50125 [2021-11-19 05:02:25,691 INFO L226 Difference]: Without dead ends: 29361 [2021-11-19 05:02:25,787 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 108 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=92, Invalid=558, Unknown=0, NotChecked=0, Total=650 [2021-11-19 05:02:25,790 INFO L933 BasicCegarLoop]: 2707 mSDtfsCounter, 3636 mSDsluCounter, 8722 mSDsCounter, 0 mSdLazyCounter, 29163 mSolverCounterSat, 2126 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 41.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4005 SdHoareTripleChecker+Valid, 11429 SdHoareTripleChecker+Invalid, 31293 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 2126 IncrementalHoareTripleChecker+Valid, 29163 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 45.7s IncrementalHoareTripleChecker+Time [2021-11-19 05:02:25,791 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4005 Valid, 11429 Invalid, 31293 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [2126 Valid, 29163 Invalid, 4 Unknown, 0 Unchecked, 45.7s Time] [2021-11-19 05:02:25,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29361 states. [2021-11-19 05:02:27,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29361 to 21248. [2021-11-19 05:02:27,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21248 states, 14974 states have (on average 1.3462668625617737) internal successors, (20159), 15657 states have internal predecessors, (20159), 4748 states have call successors, (4748), 1279 states have call predecessors, (4748), 1525 states have return successors, (6781), 4770 states have call predecessors, (6781), 4747 states have call successors, (6781) [2021-11-19 05:02:27,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21248 states to 21248 states and 31688 transitions. [2021-11-19 05:02:27,274 INFO L78 Accepts]: Start accepts. Automaton has 21248 states and 31688 transitions. Word has length 197 [2021-11-19 05:02:27,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 05:02:27,275 INFO L470 AbstractCegarLoop]: Abstraction has 21248 states and 31688 transitions. [2021-11-19 05:02:27,275 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 7.0) internal successors, (105), 8 states have internal predecessors, (105), 3 states have call successors, (25), 7 states have call predecessors, (25), 4 states have return successors, (24), 5 states have call predecessors, (24), 3 states have call successors, (24) [2021-11-19 05:02:27,275 INFO L276 IsEmpty]: Start isEmpty. Operand 21248 states and 31688 transitions. [2021-11-19 05:02:27,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2021-11-19 05:02:27,286 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 05:02:27,287 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 11, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 05:02:27,287 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-19 05:02:27,287 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 05:02:27,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 05:02:27,288 INFO L85 PathProgramCache]: Analyzing trace with hash 596492432, now seen corresponding path program 1 times [2021-11-19 05:02:27,288 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 05:02:27,288 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1760215933] [2021-11-19 05:02:27,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 05:02:27,289 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 05:02:27,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:02:28,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-19 05:02:28,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:02:28,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-19 05:02:28,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:02:28,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-19 05:02:28,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:02:28,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-11-19 05:02:28,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:02:28,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-11-19 05:02:28,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:02:28,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-11-19 05:02:28,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:02:28,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-11-19 05:02:28,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:02:28,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-11-19 05:02:28,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:02:28,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-11-19 05:02:28,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:02:28,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-19 05:02:28,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:02:28,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-11-19 05:02:28,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:02:28,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-11-19 05:02:28,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:02:28,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-19 05:02:28,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:02:28,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-11-19 05:02:28,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:02:28,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-19 05:02:28,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:02:28,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-19 05:02:28,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:02:29,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-19 05:02:29,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:02:29,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-19 05:02:29,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:02:30,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-19 05:02:30,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:02:30,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-19 05:02:30,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:02:30,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-19 05:02:30,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:02:30,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-11-19 05:02:30,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:02:30,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-11-19 05:02:30,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:02:30,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-11-19 05:02:30,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:02:30,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2021-11-19 05:02:30,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:02:30,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2021-11-19 05:02:30,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:02:30,693 INFO L134 CoverageAnalysis]: Checked inductivity of 291 backedges. 3 proven. 30 refuted. 0 times theorem prover too weak. 258 trivial. 0 not checked. [2021-11-19 05:02:30,694 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 05:02:30,694 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1760215933] [2021-11-19 05:02:30,694 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1760215933] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-19 05:02:30,694 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1063441347] [2021-11-19 05:02:30,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 05:02:30,695 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 05:02:30,695 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a4e73e8-f020-4201-a5c4-0a56d4b785dc/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 05:02:30,704 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a4e73e8-f020-4201-a5c4-0a56d4b785dc/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 05:02:30,726 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a4e73e8-f020-4201-a5c4-0a56d4b785dc/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-19 05:02:31,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:02:31,791 INFO L263 TraceCheckSpWp]: Trace formula consists of 2721 conjuncts, 56 conjunts are in the unsatisfiable core [2021-11-19 05:02:31,798 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 05:02:33,425 INFO L134 CoverageAnalysis]: Checked inductivity of 291 backedges. 30 proven. 3 refuted. 0 times theorem prover too weak. 258 trivial. 0 not checked. [2021-11-19 05:02:33,425 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 05:02:36,083 INFO L134 CoverageAnalysis]: Checked inductivity of 291 backedges. 30 proven. 3 refuted. 0 times theorem prover too weak. 258 trivial. 0 not checked. [2021-11-19 05:02:36,083 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1063441347] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 05:02:36,083 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-19 05:02:36,083 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 16, 14] total 50 [2021-11-19 05:02:36,084 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1007498102] [2021-11-19 05:02:36,084 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-19 05:02:36,085 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2021-11-19 05:02:36,085 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 05:02:36,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2021-11-19 05:02:36,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=149, Invalid=2301, Unknown=0, NotChecked=0, Total=2450 [2021-11-19 05:02:36,087 INFO L87 Difference]: Start difference. First operand 21248 states and 31688 transitions. Second operand has 50 states, 49 states have (on average 4.530612244897959) internal successors, (222), 34 states have internal predecessors, (222), 12 states have call successors, (56), 7 states have call predecessors, (56), 15 states have return successors, (57), 20 states have call predecessors, (57), 12 states have call successors, (57) [2021-11-19 05:02:38,127 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 05:02:40,208 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 05:02:42,335 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 05:02:44,427 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 05:03:18,830 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 05:03:20,927 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 05:03:23,027 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 05:03:25,125 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 05:03:27,223 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 05:03:31,471 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.25s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 05:03:34,639 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 05:03:36,734 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 05:03:38,829 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 05:03:40,922 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 05:03:43,015 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 05:03:45,108 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 05:03:47,208 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 05:03:49,300 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 05:03:51,389 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 05:03:55,553 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 05:03:59,639 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 05:04:02,634 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.99s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 05:04:04,722 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 05:04:06,814 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 05:08:51,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 05:08:51,136 INFO L93 Difference]: Finished difference Result 54804 states and 86927 transitions. [2021-11-19 05:08:51,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2021-11-19 05:08:51,141 INFO L78 Accepts]: Start accepts. Automaton has has 50 states, 49 states have (on average 4.530612244897959) internal successors, (222), 34 states have internal predecessors, (222), 12 states have call successors, (56), 7 states have call predecessors, (56), 15 states have return successors, (57), 20 states have call predecessors, (57), 12 states have call successors, (57) Word has length 203 [2021-11-19 05:08:51,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 05:08:51,408 INFO L225 Difference]: With dead ends: 54804 [2021-11-19 05:08:51,409 INFO L226 Difference]: Without dead ends: 33801 [2021-11-19 05:08:51,504 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 540 GetRequests, 443 SyntacticMatches, 1 SemanticMatches, 96 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2078 ImplicationChecksByTransitivity, 13.4s TimeCoverageRelationStatistics Valid=844, Invalid=8662, Unknown=0, NotChecked=0, Total=9506 [2021-11-19 05:08:51,505 INFO L933 BasicCegarLoop]: 2900 mSDtfsCounter, 11488 mSDsluCounter, 23865 mSDsCounter, 0 mSdLazyCounter, 109095 mSolverCounterSat, 7469 mSolverCounterUnsat, 24 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 293.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11782 SdHoareTripleChecker+Valid, 26765 SdHoareTripleChecker+Invalid, 116588 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.9s SdHoareTripleChecker+Time, 7469 IncrementalHoareTripleChecker+Valid, 109095 IncrementalHoareTripleChecker+Invalid, 24 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 360.6s IncrementalHoareTripleChecker+Time [2021-11-19 05:08:51,507 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11782 Valid, 26765 Invalid, 116588 Unknown, 0 Unchecked, 0.9s Time], IncrementalHoareTripleChecker [7469 Valid, 109095 Invalid, 24 Unknown, 0 Unchecked, 360.6s Time] [2021-11-19 05:08:51,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33801 states. [2021-11-19 05:08:53,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33801 to 22703. [2021-11-19 05:08:53,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22703 states, 16036 states have (on average 1.3462833624345223) internal successors, (21589), 16755 states have internal predecessors, (21589), 5033 states have call successors, (5033), 1365 states have call predecessors, (5033), 1633 states have return successors, (7217), 5048 states have call predecessors, (7217), 5032 states have call successors, (7217) [2021-11-19 05:08:53,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22703 states to 22703 states and 33839 transitions. [2021-11-19 05:08:53,220 INFO L78 Accepts]: Start accepts. Automaton has 22703 states and 33839 transitions. Word has length 203 [2021-11-19 05:08:53,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 05:08:53,221 INFO L470 AbstractCegarLoop]: Abstraction has 22703 states and 33839 transitions. [2021-11-19 05:08:53,222 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 50 states, 49 states have (on average 4.530612244897959) internal successors, (222), 34 states have internal predecessors, (222), 12 states have call successors, (56), 7 states have call predecessors, (56), 15 states have return successors, (57), 20 states have call predecessors, (57), 12 states have call successors, (57) [2021-11-19 05:08:53,222 INFO L276 IsEmpty]: Start isEmpty. Operand 22703 states and 33839 transitions. [2021-11-19 05:08:53,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2021-11-19 05:08:53,247 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 05:08:53,248 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 05:08:53,293 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a4e73e8-f020-4201-a5c4-0a56d4b785dc/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-19 05:08:53,473 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a4e73e8-f020-4201-a5c4-0a56d4b785dc/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-11-19 05:08:53,473 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 05:08:53,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 05:08:53,473 INFO L85 PathProgramCache]: Analyzing trace with hash 1026021521, now seen corresponding path program 1 times [2021-11-19 05:08:53,474 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 05:08:53,474 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [45500337] [2021-11-19 05:08:53,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 05:08:53,474 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 05:08:53,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:08:53,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-19 05:08:53,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:08:53,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-19 05:08:53,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:08:53,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-19 05:08:53,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:08:53,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-11-19 05:08:53,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:08:53,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-11-19 05:08:53,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:08:53,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-11-19 05:08:53,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:08:53,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-11-19 05:08:53,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:08:53,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-11-19 05:08:53,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:08:53,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-11-19 05:08:53,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:08:53,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-19 05:08:53,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:08:53,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-11-19 05:08:53,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:08:53,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-11-19 05:08:53,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:08:53,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-19 05:08:53,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:08:53,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-11-19 05:08:53,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:08:53,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-19 05:08:53,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:08:53,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-19 05:08:53,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:08:53,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-19 05:08:53,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:08:53,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-19 05:08:53,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:08:53,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-11-19 05:08:53,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:08:53,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-11-19 05:08:53,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:08:53,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-11-19 05:08:53,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:08:53,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-19 05:08:53,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:08:53,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-11-19 05:08:53,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:08:53,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-19 05:08:53,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:08:54,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-11-19 05:08:54,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:08:54,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-19 05:08:54,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:08:54,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2021-11-19 05:08:54,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:08:54,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2021-11-19 05:08:54,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:08:54,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2021-11-19 05:08:54,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:08:54,077 INFO L134 CoverageAnalysis]: Checked inductivity of 275 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 267 trivial. 0 not checked. [2021-11-19 05:08:54,077 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 05:08:54,077 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [45500337] [2021-11-19 05:08:54,078 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [45500337] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 05:08:54,078 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 05:08:54,078 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-19 05:08:54,078 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [845203391] [2021-11-19 05:08:54,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 05:08:54,079 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-19 05:08:54,079 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 05:08:54,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-19 05:08:54,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-11-19 05:08:54,080 INFO L87 Difference]: Start difference. First operand 22703 states and 33839 transitions. Second operand has 10 states, 10 states have (on average 12.4) internal successors, (124), 3 states have internal predecessors, (124), 2 states have call successors, (30), 9 states have call predecessors, (30), 2 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2021-11-19 05:08:56,121 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 05:08:58,192 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 05:09:00,276 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 05:09:25,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 05:09:25,230 INFO L93 Difference]: Finished difference Result 43428 states and 70853 transitions. [2021-11-19 05:09:25,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-19 05:09:25,230 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 12.4) internal successors, (124), 3 states have internal predecessors, (124), 2 states have call successors, (30), 9 states have call predecessors, (30), 2 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) Word has length 218 [2021-11-19 05:09:25,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 05:09:25,411 INFO L225 Difference]: With dead ends: 43428 [2021-11-19 05:09:25,412 INFO L226 Difference]: Without dead ends: 32333 [2021-11-19 05:09:25,470 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=78, Invalid=162, Unknown=0, NotChecked=0, Total=240 [2021-11-19 05:09:25,471 INFO L933 BasicCegarLoop]: 2513 mSDtfsCounter, 7145 mSDsluCounter, 1814 mSDsCounter, 0 mSdLazyCounter, 7938 mSolverCounterSat, 5070 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7453 SdHoareTripleChecker+Valid, 4327 SdHoareTripleChecker+Invalid, 13011 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5070 IncrementalHoareTripleChecker+Valid, 7938 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 28.9s IncrementalHoareTripleChecker+Time [2021-11-19 05:09:25,471 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7453 Valid, 4327 Invalid, 13011 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5070 Valid, 7938 Invalid, 3 Unknown, 0 Unchecked, 28.9s Time] [2021-11-19 05:09:25,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32333 states. [2021-11-19 05:09:26,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32333 to 22715. [2021-11-19 05:09:26,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22715 states, 16048 states have (on average 1.3460244267198405) internal successors, (21601), 16767 states have internal predecessors, (21601), 5033 states have call successors, (5033), 1365 states have call predecessors, (5033), 1633 states have return successors, (7217), 5048 states have call predecessors, (7217), 5032 states have call successors, (7217) [2021-11-19 05:09:27,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22715 states to 22715 states and 33851 transitions. [2021-11-19 05:09:27,062 INFO L78 Accepts]: Start accepts. Automaton has 22715 states and 33851 transitions. Word has length 218 [2021-11-19 05:09:27,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 05:09:27,063 INFO L470 AbstractCegarLoop]: Abstraction has 22715 states and 33851 transitions. [2021-11-19 05:09:27,063 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 12.4) internal successors, (124), 3 states have internal predecessors, (124), 2 states have call successors, (30), 9 states have call predecessors, (30), 2 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2021-11-19 05:09:27,063 INFO L276 IsEmpty]: Start isEmpty. Operand 22715 states and 33851 transitions. [2021-11-19 05:09:27,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2021-11-19 05:09:27,094 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 05:09:27,094 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 05:09:27,094 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-19 05:09:27,095 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 05:09:27,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 05:09:27,095 INFO L85 PathProgramCache]: Analyzing trace with hash 928948464, now seen corresponding path program 1 times [2021-11-19 05:09:27,095 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 05:09:27,096 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1794115622] [2021-11-19 05:09:27,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 05:09:27,096 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 05:09:27,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:09:27,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-19 05:09:27,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:09:27,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-19 05:09:27,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:09:27,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-19 05:09:27,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:09:27,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-11-19 05:09:27,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:09:27,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-11-19 05:09:27,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:09:27,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-11-19 05:09:27,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:09:27,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-11-19 05:09:27,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:09:27,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-11-19 05:09:27,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:09:27,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-11-19 05:09:27,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:09:27,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-19 05:09:27,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:09:27,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-11-19 05:09:27,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:09:27,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-11-19 05:09:27,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:09:27,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-19 05:09:27,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:09:27,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-11-19 05:09:27,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:09:27,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-19 05:09:27,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:09:27,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-19 05:09:27,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:09:27,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-19 05:09:27,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:09:27,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-19 05:09:27,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:09:27,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-11-19 05:09:27,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:09:27,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-11-19 05:09:27,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:09:27,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-11-19 05:09:27,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:09:27,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-19 05:09:27,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:09:27,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-11-19 05:09:27,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:09:27,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-19 05:09:27,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:09:28,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-11-19 05:09:28,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:09:28,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-19 05:09:28,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:09:28,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2021-11-19 05:09:28,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:09:28,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2021-11-19 05:09:28,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:09:28,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2021-11-19 05:09:28,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:09:28,157 INFO L134 CoverageAnalysis]: Checked inductivity of 275 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 267 trivial. 0 not checked. [2021-11-19 05:09:28,157 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 05:09:28,157 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1794115622] [2021-11-19 05:09:28,157 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1794115622] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 05:09:28,158 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 05:09:28,158 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-11-19 05:09:28,158 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1134418376] [2021-11-19 05:09:28,158 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 05:09:28,160 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-11-19 05:09:28,161 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 05:09:28,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-11-19 05:09:28,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=164, Unknown=0, NotChecked=0, Total=210 [2021-11-19 05:09:28,162 INFO L87 Difference]: Start difference. First operand 22715 states and 33851 transitions. Second operand has 15 states, 15 states have (on average 8.4) internal successors, (126), 8 states have internal predecessors, (126), 4 states have call successors, (30), 9 states have call predecessors, (30), 4 states have return successors, (29), 6 states have call predecessors, (29), 4 states have call successors, (29) [2021-11-19 05:09:30,207 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 [] [2021-11-19 05:09:32,091 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.88s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 05:09:34,216 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 05:09:36,302 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 05:09:43,385 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 05:11:18,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 05:11:18,117 INFO L93 Difference]: Finished difference Result 75333 states and 126442 transitions. [2021-11-19 05:11:18,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-11-19 05:11:18,120 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 8.4) internal successors, (126), 8 states have internal predecessors, (126), 4 states have call successors, (30), 9 states have call predecessors, (30), 4 states have return successors, (29), 6 states have call predecessors, (29), 4 states have call successors, (29) Word has length 220 [2021-11-19 05:11:18,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 05:11:18,391 INFO L225 Difference]: With dead ends: 75333 [2021-11-19 05:11:18,391 INFO L226 Difference]: Without dead ends: 53987 [2021-11-19 05:11:18,469 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 308 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=288, Invalid=902, Unknown=0, NotChecked=0, Total=1190 [2021-11-19 05:11:18,469 INFO L933 BasicCegarLoop]: 4386 mSDtfsCounter, 22791 mSDsluCounter, 2942 mSDsCounter, 0 mSdLazyCounter, 44332 mSolverCounterSat, 19292 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 88.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23099 SdHoareTripleChecker+Valid, 7328 SdHoareTripleChecker+Invalid, 63628 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 19292 IncrementalHoareTripleChecker+Valid, 44332 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 105.0s IncrementalHoareTripleChecker+Time [2021-11-19 05:11:18,470 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [23099 Valid, 7328 Invalid, 63628 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [19292 Valid, 44332 Invalid, 4 Unknown, 0 Unchecked, 105.0s Time] [2021-11-19 05:11:18,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53987 states. [2021-11-19 05:11:20,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53987 to 37464. [2021-11-19 05:11:21,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37464 states, 26393 states have (on average 1.3436896146705566) internal successors, (35464), 27622 states have internal predecessors, (35464), 8559 states have call successors, (8559), 1943 states have call predecessors, (8559), 2511 states have return successors, (14737), 8740 states have call predecessors, (14737), 8558 states have call successors, (14737) [2021-11-19 05:11:21,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37464 states to 37464 states and 58760 transitions. [2021-11-19 05:11:21,255 INFO L78 Accepts]: Start accepts. Automaton has 37464 states and 58760 transitions. Word has length 220 [2021-11-19 05:11:21,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 05:11:21,256 INFO L470 AbstractCegarLoop]: Abstraction has 37464 states and 58760 transitions. [2021-11-19 05:11:21,256 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 8.4) internal successors, (126), 8 states have internal predecessors, (126), 4 states have call successors, (30), 9 states have call predecessors, (30), 4 states have return successors, (29), 6 states have call predecessors, (29), 4 states have call successors, (29) [2021-11-19 05:11:21,257 INFO L276 IsEmpty]: Start isEmpty. Operand 37464 states and 58760 transitions. [2021-11-19 05:11:21,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2021-11-19 05:11:21,283 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 05:11:21,283 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 11, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 05:11:21,284 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-19 05:11:21,284 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 05:11:21,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 05:11:21,284 INFO L85 PathProgramCache]: Analyzing trace with hash 1812775508, now seen corresponding path program 1 times [2021-11-19 05:11:21,285 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 05:11:21,285 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [651324302] [2021-11-19 05:11:21,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 05:11:21,285 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 05:11:21,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:11:22,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-19 05:11:22,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:11:22,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-19 05:11:22,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:11:22,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-19 05:11:22,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:11:22,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-11-19 05:11:22,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:11:22,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-11-19 05:11:22,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:11:22,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-11-19 05:11:22,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:11:22,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-11-19 05:11:22,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:11:22,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-11-19 05:11:22,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:11:22,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-11-19 05:11:22,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:11:22,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-19 05:11:22,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:11:22,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-11-19 05:11:22,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:11:22,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-11-19 05:11:22,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:11:22,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-19 05:11:22,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:11:22,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-11-19 05:11:22,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:11:22,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-19 05:11:22,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:11:25,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-19 05:11:25,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:11:26,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-19 05:11:26,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:11:27,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-19 05:11:27,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:11:29,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-19 05:11:29,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:11:29,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-19 05:11:29,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:11:29,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-19 05:11:29,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:11:29,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-11-19 05:11:29,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:11:29,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-11-19 05:11:29,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:11:29,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-11-19 05:11:29,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:11:29,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-19 05:11:29,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:11:29,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-11-19 05:11:29,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:11:29,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-19 05:11:29,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:11:29,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-11-19 05:11:29,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:11:29,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-19 05:11:29,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:11:29,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-11-19 05:11:29,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:11:29,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2021-11-19 05:11:29,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:11:30,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2021-11-19 05:11:30,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:11:30,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2021-11-19 05:11:30,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:11:30,285 INFO L134 CoverageAnalysis]: Checked inductivity of 291 backedges. 3 proven. 30 refuted. 0 times theorem prover too weak. 258 trivial. 0 not checked. [2021-11-19 05:11:30,285 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 05:11:30,285 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [651324302] [2021-11-19 05:11:30,286 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [651324302] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-19 05:11:30,286 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1726535445] [2021-11-19 05:11:30,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 05:11:30,286 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 05:11:30,286 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a4e73e8-f020-4201-a5c4-0a56d4b785dc/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 05:11:30,308 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a4e73e8-f020-4201-a5c4-0a56d4b785dc/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 05:11:30,309 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a4e73e8-f020-4201-a5c4-0a56d4b785dc/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-19 05:11:32,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:11:32,479 INFO L263 TraceCheckSpWp]: Trace formula consists of 2904 conjuncts, 104 conjunts are in the unsatisfiable core [2021-11-19 05:11:32,498 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 05:11:32,610 INFO L354 Elim1Store]: treesize reduction 80, result has 1.2 percent of original size [2021-11-19 05:11:32,611 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 266 treesize of output 256 [2021-11-19 05:11:33,134 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-19 05:11:33,784 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-19 05:11:34,029 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-19 05:11:34,317 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-19 05:11:34,599 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-19 05:11:34,891 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-19 05:11:35,166 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-19 05:11:35,419 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-19 05:11:36,245 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-19 05:11:36,519 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-19 05:11:37,701 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-19 05:11:38,270 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-19 05:11:39,656 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 10 [2021-11-19 05:11:44,753 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 10 [2021-11-19 05:11:50,101 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 10