./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--intel--ixgb--ixgb.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb4a8784-e8ec-44d3-b2ce-5c7eb69e5393/bin/uautomizer-DrprNOufMa/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb4a8784-e8ec-44d3-b2ce-5c7eb69e5393/bin/uautomizer-DrprNOufMa/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb4a8784-e8ec-44d3-b2ce-5c7eb69e5393/bin/uautomizer-DrprNOufMa/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb4a8784-e8ec-44d3-b2ce-5c7eb69e5393/bin/uautomizer-DrprNOufMa/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--intel--ixgb--ixgb.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb4a8784-e8ec-44d3-b2ce-5c7eb69e5393/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb4a8784-e8ec-44d3-b2ce-5c7eb69e5393/bin/uautomizer-DrprNOufMa --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 899936809f134b7a18a7ac00d293808544b0e96b14603dc5a591cd3e9a61d6b6 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-12-06 23:23:31,154 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-06 23:23:31,156 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-06 23:23:31,178 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-06 23:23:31,178 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-06 23:23:31,179 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-06 23:23:31,180 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-06 23:23:31,182 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-06 23:23:31,184 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-06 23:23:31,184 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-06 23:23:31,185 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-06 23:23:31,186 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-06 23:23:31,186 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-06 23:23:31,187 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-06 23:23:31,188 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-06 23:23:31,190 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-06 23:23:31,190 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-06 23:23:31,191 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-06 23:23:31,193 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-06 23:23:31,195 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-06 23:23:31,196 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-06 23:23:31,197 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-06 23:23:31,198 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-06 23:23:31,199 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-06 23:23:31,202 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-06 23:23:31,202 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-06 23:23:31,202 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-06 23:23:31,203 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-06 23:23:31,204 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-06 23:23:31,204 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-06 23:23:31,205 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-06 23:23:31,205 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-06 23:23:31,206 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-06 23:23:31,207 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-06 23:23:31,208 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-06 23:23:31,208 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-06 23:23:31,208 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-06 23:23:31,208 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-06 23:23:31,209 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-06 23:23:31,209 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-06 23:23:31,210 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-06 23:23:31,210 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb4a8784-e8ec-44d3-b2ce-5c7eb69e5393/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-06 23:23:31,237 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-06 23:23:31,237 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-06 23:23:31,238 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-06 23:23:31,238 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-06 23:23:31,239 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-06 23:23:31,239 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-06 23:23:31,239 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-06 23:23:31,240 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-06 23:23:31,240 INFO L138 SettingsManager]: * Use SBE=true [2021-12-06 23:23:31,240 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-06 23:23:31,240 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-06 23:23:31,240 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-06 23:23:31,241 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-06 23:23:31,241 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-06 23:23:31,241 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-06 23:23:31,241 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-06 23:23:31,241 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-06 23:23:31,241 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-06 23:23:31,242 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-06 23:23:31,242 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-06 23:23:31,242 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-06 23:23:31,242 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 23:23:31,242 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-06 23:23:31,243 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-06 23:23:31,243 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-06 23:23:31,243 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-06 23:23:31,243 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-06 23:23:31,243 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-06 23:23:31,243 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-06 23:23:31,244 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-06 23:23:31,244 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-06 23:23:31,244 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_fb4a8784-e8ec-44d3-b2ce-5c7eb69e5393/bin/uautomizer-DrprNOufMa/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb4a8784-e8ec-44d3-b2ce-5c7eb69e5393/bin/uautomizer-DrprNOufMa Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 899936809f134b7a18a7ac00d293808544b0e96b14603dc5a591cd3e9a61d6b6 [2021-12-06 23:23:31,433 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-06 23:23:31,449 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-06 23:23:31,450 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-06 23:23:31,451 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-06 23:23:31,452 INFO L275 PluginConnector]: CDTParser initialized [2021-12-06 23:23:31,453 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb4a8784-e8ec-44d3-b2ce-5c7eb69e5393/bin/uautomizer-DrprNOufMa/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--intel--ixgb--ixgb.ko-entry_point.cil.out.i [2021-12-06 23:23:31,497 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb4a8784-e8ec-44d3-b2ce-5c7eb69e5393/bin/uautomizer-DrprNOufMa/data/021b4e839/2d025b865bb6440dafdf73f0ef54d3ce/FLAGa639360a3 [2021-12-06 23:23:32,164 INFO L306 CDTParser]: Found 1 translation units. [2021-12-06 23:23:32,165 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb4a8784-e8ec-44d3-b2ce-5c7eb69e5393/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--intel--ixgb--ixgb.ko-entry_point.cil.out.i [2021-12-06 23:23:32,200 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb4a8784-e8ec-44d3-b2ce-5c7eb69e5393/bin/uautomizer-DrprNOufMa/data/021b4e839/2d025b865bb6440dafdf73f0ef54d3ce/FLAGa639360a3 [2021-12-06 23:23:32,278 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb4a8784-e8ec-44d3-b2ce-5c7eb69e5393/bin/uautomizer-DrprNOufMa/data/021b4e839/2d025b865bb6440dafdf73f0ef54d3ce [2021-12-06 23:23:32,280 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-06 23:23:32,282 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-06 23:23:32,283 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-06 23:23:32,283 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-06 23:23:32,286 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-06 23:23:32,287 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 11:23:32" (1/1) ... [2021-12-06 23:23:32,288 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4257b6fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:23:32, skipping insertion in model container [2021-12-06 23:23:32,288 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 11:23:32" (1/1) ... [2021-12-06 23:23:32,294 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-06 23:23:32,407 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-06 23:23:35,048 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_fb4a8784-e8ec-44d3-b2ce-5c7eb69e5393/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--intel--ixgb--ixgb.ko-entry_point.cil.out.i[478203,478216] [2021-12-06 23:23:35,124 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 23:23:35,171 INFO L203 MainTranslator]: Completed pre-run [2021-12-06 23:23:35,537 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_fb4a8784-e8ec-44d3-b2ce-5c7eb69e5393/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--intel--ixgb--ixgb.ko-entry_point.cil.out.i[478203,478216] [2021-12-06 23:23:35,542 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 23:23:35,812 INFO L208 MainTranslator]: Completed translation [2021-12-06 23:23:35,813 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:23:35 WrapperNode [2021-12-06 23:23:35,813 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-06 23:23:35,814 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-06 23:23:35,814 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-06 23:23:35,814 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-06 23:23:35,822 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:23:35" (1/1) ... [2021-12-06 23:23:35,910 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:23:35" (1/1) ... [2021-12-06 23:23:36,186 INFO L137 Inliner]: procedures = 450, calls = 6036, calls flagged for inlining = 203, calls inlined = 184, statements flattened = 11262 [2021-12-06 23:23:36,187 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-06 23:23:36,187 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-06 23:23:36,188 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-06 23:23:36,188 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-06 23:23:36,197 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:23:35" (1/1) ... [2021-12-06 23:23:36,197 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:23:35" (1/1) ... [2021-12-06 23:23:36,253 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:23:35" (1/1) ... [2021-12-06 23:23:36,253 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:23:35" (1/1) ... [2021-12-06 23:23:36,491 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:23:35" (1/1) ... [2021-12-06 23:23:36,514 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:23:35" (1/1) ... [2021-12-06 23:23:36,541 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:23:35" (1/1) ... [2021-12-06 23:23:36,579 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-06 23:23:36,580 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-06 23:23:36,580 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-06 23:23:36,580 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-06 23:23:36,581 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:23:35" (1/1) ... [2021-12-06 23:23:36,588 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 23:23:36,598 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb4a8784-e8ec-44d3-b2ce-5c7eb69e5393/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 23:23:36,612 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb4a8784-e8ec-44d3-b2ce-5c7eb69e5393/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-06 23:23:36,615 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb4a8784-e8ec-44d3-b2ce-5c7eb69e5393/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-06 23:23:36,643 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2021-12-06 23:23:36,644 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2021-12-06 23:23:36,644 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-12-06 23:23:36,644 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-12-06 23:23:36,644 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-12-06 23:23:36,644 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-12-06 23:23:36,644 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_write_vfta [2021-12-06 23:23:36,644 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_write_vfta [2021-12-06 23:23:36,644 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-06 23:23:36,644 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-06 23:23:36,644 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_standby_eeprom [2021-12-06 23:23:36,645 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_standby_eeprom [2021-12-06 23:23:36,645 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_io_error_detected [2021-12-06 23:23:36,645 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_io_error_detected [2021-12-06 23:23:36,645 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2021-12-06 23:23:36,645 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2021-12-06 23:23:36,645 INFO L130 BoogieDeclarations]: Found specification of procedure activate_work_2 [2021-12-06 23:23:36,645 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_work_2 [2021-12-06 23:23:36,645 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-12-06 23:23:36,645 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-12-06 23:23:36,645 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_on [2021-12-06 23:23:36,645 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_on [2021-12-06 23:23:36,646 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2021-12-06 23:23:36,646 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2021-12-06 23:23:36,646 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_tx_timeout_task [2021-12-06 23:23:36,646 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_tx_timeout_task [2021-12-06 23:23:36,646 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_alloc_rx_buffers [2021-12-06 23:23:36,646 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_alloc_rx_buffers [2021-12-06 23:23:36,646 INFO L130 BoogieDeclarations]: Found specification of procedure mac_addr_valid [2021-12-06 23:23:36,646 INFO L138 BoogieDeclarations]: Found implementation of procedure mac_addr_valid [2021-12-06 23:23:36,646 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_vlan_rx_add_vid [2021-12-06 23:23:36,646 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_vlan_rx_add_vid [2021-12-06 23:23:36,646 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_free_tx_resources [2021-12-06 23:23:36,647 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_free_tx_resources [2021-12-06 23:23:36,647 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2021-12-06 23:23:36,647 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2021-12-06 23:23:36,647 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_set_features [2021-12-06 23:23:36,647 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_set_features [2021-12-06 23:23:36,647 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_set_multi [2021-12-06 23:23:36,647 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_set_multi [2021-12-06 23:23:36,647 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_rar_set [2021-12-06 23:23:36,647 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_rar_set [2021-12-06 23:23:36,647 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2021-12-06 23:23:36,647 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2021-12-06 23:23:36,648 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-12-06 23:23:36,648 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-12-06 23:23:36,648 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2021-12-06 23:23:36,648 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2021-12-06 23:23:36,648 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-12-06 23:23:36,648 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-12-06 23:23:36,648 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-06 23:23:36,648 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2021-12-06 23:23:36,648 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2021-12-06 23:23:36,648 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_validate_eeprom_checksum [2021-12-06 23:23:36,648 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_validate_eeprom_checksum [2021-12-06 23:23:36,649 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-12-06 23:23:36,649 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-12-06 23:23:36,649 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_netpoll [2021-12-06 23:23:36,649 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_netpoll [2021-12-06 23:23:36,649 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-12-06 23:23:36,649 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-12-06 23:23:36,649 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-06 23:23:36,649 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_raise_clock [2021-12-06 23:23:36,649 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_raise_clock [2021-12-06 23:23:36,649 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_write_eeprom [2021-12-06 23:23:36,649 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_write_eeprom [2021-12-06 23:23:36,650 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-12-06 23:23:36,650 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-12-06 23:23:36,650 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_identify_xpak_vendor [2021-12-06 23:23:36,650 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_identify_xpak_vendor [2021-12-06 23:23:36,650 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-06 23:23:36,650 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_mac_reset [2021-12-06 23:23:36,650 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_mac_reset [2021-12-06 23:23:36,650 INFO L130 BoogieDeclarations]: Found specification of procedure activate_pending_timer_3 [2021-12-06 23:23:36,650 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_pending_timer_3 [2021-12-06 23:23:36,650 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_read_eeprom [2021-12-06 23:23:36,650 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_read_eeprom [2021-12-06 23:23:36,651 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-06 23:23:36,651 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_free_rx_resources [2021-12-06 23:23:36,651 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_free_rx_resources [2021-12-06 23:23:36,651 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-12-06 23:23:36,651 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-12-06 23:23:36,651 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headroom [2021-12-06 23:23:36,651 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headroom [2021-12-06 23:23:36,651 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-12-06 23:23:36,651 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-12-06 23:23:36,651 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_header [2021-12-06 23:23:36,651 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_header [2021-12-06 23:23:36,651 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-12-06 23:23:36,652 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-12-06 23:23:36,652 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_get_regs_len [2021-12-06 23:23:36,652 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_get_regs_len [2021-12-06 23:23:36,652 INFO L130 BoogieDeclarations]: Found specification of procedure vfree [2021-12-06 23:23:36,652 INFO L138 BoogieDeclarations]: Found implementation of procedure vfree [2021-12-06 23:23:36,652 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-12-06 23:23:36,652 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-12-06 23:23:36,652 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_read_phy_reg [2021-12-06 23:23:36,652 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_read_phy_reg [2021-12-06 23:23:36,652 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_check_for_link [2021-12-06 23:23:36,652 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_check_for_link [2021-12-06 23:23:36,652 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2021-12-06 23:23:36,653 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2021-12-06 23:23:36,653 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_validate_option [2021-12-06 23:23:36,653 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_validate_option [2021-12-06 23:23:36,653 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-06 23:23:36,653 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_single_attrs [2021-12-06 23:23:36,653 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_single_attrs [2021-12-06 23:23:36,653 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-06 23:23:36,653 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_ether_addr [2021-12-06 23:23:36,653 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_ether_addr [2021-12-06 23:23:36,653 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-12-06 23:23:36,653 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-12-06 23:23:36,654 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-06 23:23:36,654 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_3 [2021-12-06 23:23:36,654 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_3 [2021-12-06 23:23:36,654 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_lower_clock [2021-12-06 23:23:36,654 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_lower_clock [2021-12-06 23:23:36,654 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_reset [2021-12-06 23:23:36,654 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_reset [2021-12-06 23:23:36,654 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2021-12-06 23:23:36,654 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2021-12-06 23:23:36,654 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_get_eeprom_len [2021-12-06 23:23:36,654 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_get_eeprom_len [2021-12-06 23:23:36,654 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_up [2021-12-06 23:23:36,655 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_up [2021-12-06 23:23:36,655 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_irq_enable [2021-12-06 23:23:36,655 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_irq_enable [2021-12-06 23:23:36,655 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_map_page [2021-12-06 23:23:36,655 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_map_page [2021-12-06 23:23:36,655 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-12-06 23:23:36,655 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-12-06 23:23:36,655 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_setup_tx_resources [2021-12-06 23:23:36,655 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_setup_tx_resources [2021-12-06 23:23:36,655 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_maybe_stop_tx [2021-12-06 23:23:36,655 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_maybe_stop_tx [2021-12-06 23:23:36,655 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_intr [2021-12-06 23:23:36,656 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_intr [2021-12-06 23:23:36,656 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2021-12-06 23:23:36,656 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2021-12-06 23:23:36,656 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-12-06 23:23:36,656 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-12-06 23:23:36,656 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-06 23:23:36,656 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-06 23:23:36,656 INFO L130 BoogieDeclarations]: Found specification of procedure tcp_hdr [2021-12-06 23:23:36,656 INFO L138 BoogieDeclarations]: Found implementation of procedure tcp_hdr [2021-12-06 23:23:36,656 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2021-12-06 23:23:36,656 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2021-12-06 23:23:36,656 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-06 23:23:36,656 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-06 23:23:36,657 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-06 23:23:36,657 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-06 23:23:36,657 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2021-12-06 23:23:36,657 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2021-12-06 23:23:36,657 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2021-12-06 23:23:36,657 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2021-12-06 23:23:36,657 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2021-12-06 23:23:36,657 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2021-12-06 23:23:36,657 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_update_stats [2021-12-06 23:23:36,657 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_update_stats [2021-12-06 23:23:36,657 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_release_7 [2021-12-06 23:23:36,657 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_release_7 [2021-12-06 23:23:36,658 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-12-06 23:23:36,658 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-12-06 23:23:36,658 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_check_and_get_eeprom_data [2021-12-06 23:23:36,658 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_check_and_get_eeprom_data [2021-12-06 23:23:36,658 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed_set [2021-12-06 23:23:36,658 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed_set [2021-12-06 23:23:36,658 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-12-06 23:23:36,658 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-12-06 23:23:36,658 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-06 23:23:36,658 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-06 23:23:36,658 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-12-06 23:23:36,658 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-12-06 23:23:36,658 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_unmap_page [2021-12-06 23:23:36,659 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_unmap_page [2021-12-06 23:23:36,659 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_single_attrs [2021-12-06 23:23:36,659 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_single_attrs [2021-12-06 23:23:36,659 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2021-12-06 23:23:36,659 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2021-12-06 23:23:36,659 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-06 23:23:36,659 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_master [2021-12-06 23:23:36,659 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_master [2021-12-06 23:23:36,659 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2021-12-06 23:23:36,659 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2021-12-06 23:23:36,659 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-06 23:23:36,659 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_vlan_rx_kill_vid [2021-12-06 23:23:36,659 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_vlan_rx_kill_vid [2021-12-06 23:23:36,660 INFO L130 BoogieDeclarations]: Found specification of procedure is_zero_ether_addr [2021-12-06 23:23:36,660 INFO L138 BoogieDeclarations]: Found implementation of procedure is_zero_ether_addr [2021-12-06 23:23:36,660 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-06 23:23:36,660 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_change_mtu [2021-12-06 23:23:36,660 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_change_mtu [2021-12-06 23:23:36,660 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work_on [2021-12-06 23:23:36,660 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work_on [2021-12-06 23:23:36,660 INFO L130 BoogieDeclarations]: Found specification of procedure dma_mapping_error [2021-12-06 23:23:36,660 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_mapping_error [2021-12-06 23:23:36,660 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-12-06 23:23:36,660 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-12-06 23:23:36,660 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-12-06 23:23:36,660 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-12-06 23:23:36,661 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_link_reset [2021-12-06 23:23:36,661 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_link_reset [2021-12-06 23:23:36,661 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_set_speed_duplex [2021-12-06 23:23:36,661 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_set_speed_duplex [2021-12-06 23:23:36,661 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_fix_features [2021-12-06 23:23:36,661 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_fix_features [2021-12-06 23:23:36,661 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2021-12-06 23:23:36,661 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2021-12-06 23:23:36,661 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_nonatomic [2021-12-06 23:23:36,661 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_nonatomic [2021-12-06 23:23:36,661 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-12-06 23:23:36,661 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-12-06 23:23:36,662 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_io_slot_reset [2021-12-06 23:23:36,662 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_io_slot_reset [2021-12-06 23:23:36,662 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_offset [2021-12-06 23:23:36,662 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_offset [2021-12-06 23:23:36,662 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-12-06 23:23:36,662 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-12-06 23:23:36,662 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_unmap_and_free_tx_resource [2021-12-06 23:23:36,662 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_unmap_and_free_tx_resource [2021-12-06 23:23:36,662 INFO L130 BoogieDeclarations]: Found specification of procedure skb_network_header [2021-12-06 23:23:36,662 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_network_header [2021-12-06 23:23:36,662 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-12-06 23:23:36,662 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-12-06 23:23:36,662 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_set_mac [2021-12-06 23:23:36,663 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_set_mac [2021-12-06 23:23:36,663 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-06 23:23:36,663 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_setup_eeprom [2021-12-06 23:23:36,663 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_setup_eeprom [2021-12-06 23:23:36,663 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-06 23:23:36,663 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-06 23:23:36,663 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_write_phy_reg [2021-12-06 23:23:36,663 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_write_phy_reg [2021-12-06 23:23:36,663 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_get_ee_mac_addr [2021-12-06 23:23:36,663 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_get_ee_mac_addr [2021-12-06 23:23:36,663 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2021-12-06 23:23:36,663 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2021-12-06 23:23:36,663 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2021-12-06 23:23:36,664 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2021-12-06 23:23:36,664 INFO L130 BoogieDeclarations]: Found specification of procedure dma_set_mask_and_coherent [2021-12-06 23:23:36,664 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_set_mask_and_coherent [2021-12-06 23:23:36,664 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_clean_tx_ring [2021-12-06 23:23:36,664 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_clean_tx_ring [2021-12-06 23:23:36,664 INFO L130 BoogieDeclarations]: Found specification of procedure is_multicast_ether_addr [2021-12-06 23:23:36,664 INFO L138 BoogieDeclarations]: Found implementation of procedure is_multicast_ether_addr [2021-12-06 23:23:36,664 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2021-12-06 23:23:36,664 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2021-12-06 23:23:36,664 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_clean_rx_ring [2021-12-06 23:23:36,664 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_clean_rx_ring [2021-12-06 23:23:36,664 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_shift_out_bits [2021-12-06 23:23:36,664 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_shift_out_bits [2021-12-06 23:23:36,664 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_down [2021-12-06 23:23:36,665 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_down [2021-12-06 23:23:36,665 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2021-12-06 23:23:36,665 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2021-12-06 23:23:36,665 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_tx_timeout [2021-12-06 23:23:36,665 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_tx_timeout [2021-12-06 23:23:36,665 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_setup_rx_resources [2021-12-06 23:23:36,665 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_setup_rx_resources [2021-12-06 23:23:36,665 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2021-12-06 23:23:36,665 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2021-12-06 23:23:36,665 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2021-12-06 23:23:36,665 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2021-12-06 23:23:36,665 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_get_stats [2021-12-06 23:23:36,666 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_get_stats [2021-12-06 23:23:36,666 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_msi [2021-12-06 23:23:36,666 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_msi [2021-12-06 23:23:36,666 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2021-12-06 23:23:36,666 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2021-12-06 23:23:36,666 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-06 23:23:36,666 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2021-12-06 23:23:36,666 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_get_eeprom_data [2021-12-06 23:23:36,666 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_get_eeprom_data [2021-12-06 23:23:37,356 INFO L236 CfgBuilder]: Building ICFG [2021-12-06 23:23:37,359 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-06 23:23:37,598 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-06 23:24:01,272 INFO L277 CfgBuilder]: Performing block encoding [2021-12-06 23:24:01,292 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-06 23:24:01,292 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-06 23:24:01,296 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 11:24:01 BoogieIcfgContainer [2021-12-06 23:24:01,296 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-06 23:24:01,297 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-06 23:24:01,297 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-06 23:24:01,300 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-06 23:24:01,300 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 11:23:32" (1/3) ... [2021-12-06 23:24:01,300 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65572753 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 11:24:01, skipping insertion in model container [2021-12-06 23:24:01,300 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:23:35" (2/3) ... [2021-12-06 23:24:01,301 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65572753 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 11:24:01, skipping insertion in model container [2021-12-06 23:24:01,301 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 11:24:01" (3/3) ... [2021-12-06 23:24:01,302 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--intel--ixgb--ixgb.ko-entry_point.cil.out.i [2021-12-06 23:24:01,305 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-06 23:24:01,306 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-06 23:24:01,353 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-06 23:24:01,358 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 [2021-12-06 23:24:01,358 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-06 23:24:01,419 INFO L276 IsEmpty]: Start isEmpty. Operand has 3096 states, 2096 states have (on average 1.3005725190839694) internal successors, (2726), 2129 states have internal predecessors, (2726), 871 states have call successors, (871), 128 states have call predecessors, (871), 127 states have return successors, (862), 858 states have call predecessors, (862), 862 states have call successors, (862) [2021-12-06 23:24:01,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2021-12-06 23:24:01,437 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:24:01,438 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:24:01,438 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 23:24:01,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:24:01,442 INFO L85 PathProgramCache]: Analyzing trace with hash 1608542857, now seen corresponding path program 1 times [2021-12-06 23:24:01,449 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 23:24:01,449 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1204666521] [2021-12-06 23:24:01,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:24:01,450 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 23:24:01,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:24:02,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 23:24:02,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:24:02,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:24:02,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:24:02,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 23:24:02,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:24:02,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-06 23:24:02,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:24:02,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:24:02,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:24:02,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 23:24:02,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:24:02,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-06 23:24:02,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:24:02,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:24:02,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:24:02,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 23:24:02,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:24:02,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-12-06 23:24:02,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:24:02,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:24:02,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:24:02,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-06 23:24:02,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:24:02,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:24:02,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:24:02,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-06 23:24:02,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:24:02,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:24:02,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:24:02,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-12-06 23:24:02,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:24:02,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:24:02,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:24:02,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-12-06 23:24:02,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:24:02,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:24:02,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:24:02,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-12-06 23:24:02,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:24:02,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:24:02,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:24:02,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-12-06 23:24:02,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:24:02,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:24:02,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:24:02,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-12-06 23:24:02,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:24:02,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:24:02,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:24:02,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2021-12-06 23:24:02,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:24:02,442 INFO L134 CoverageAnalysis]: Checked inductivity of 294 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 294 trivial. 0 not checked. [2021-12-06 23:24:02,443 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 23:24:02,443 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1204666521] [2021-12-06 23:24:02,444 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1204666521] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:24:02,444 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:24:02,444 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-06 23:24:02,445 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2084053262] [2021-12-06 23:24:02,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:24:02,449 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 23:24:02,450 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 23:24:02,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 23:24:02,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-06 23:24:02,482 INFO L87 Difference]: Start difference. First operand has 3096 states, 2096 states have (on average 1.3005725190839694) internal successors, (2726), 2129 states have internal predecessors, (2726), 871 states have call successors, (871), 128 states have call predecessors, (871), 127 states have return successors, (862), 858 states have call predecessors, (862), 862 states have call successors, (862) Second operand has 5 states, 5 states have (on average 11.4) internal successors, (57), 2 states have internal predecessors, (57), 2 states have call successors, (18), 5 states have call predecessors, (18), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-12-06 23:24:11,113 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:24:13,152 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:24:15,186 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:24:20,942 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:24:22,982 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:24:25,970 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:24:27,747 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.78s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:24:29,782 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:24:32,160 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:24:34,199 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:24:36,243 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:24:38,988 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:24:40,713 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:24:43,738 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:24:45,776 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:24:47,806 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:24:50,078 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:24:52,199 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:24:54,308 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:24:54,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:24:54,906 INFO L93 Difference]: Finished difference Result 6365 states and 9290 transitions. [2021-12-06 23:24:54,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-06 23:24:54,908 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 2 states have internal predecessors, (57), 2 states have call successors, (18), 5 states have call predecessors, (18), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 172 [2021-12-06 23:24:54,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:24:54,948 INFO L225 Difference]: With dead ends: 6365 [2021-12-06 23:24:54,948 INFO L226 Difference]: Without dead ends: 3235 [2021-12-06 23:24:54,975 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-12-06 23:24:54,977 INFO L933 BasicCegarLoop]: 4126 mSDtfsCounter, 1438 mSDsluCounter, 4886 mSDsCounter, 0 mSdLazyCounter, 4047 mSolverCounterSat, 2173 mSolverCounterUnsat, 16 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 49.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1446 SdHoareTripleChecker+Valid, 9012 SdHoareTripleChecker+Invalid, 6236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2173 IncrementalHoareTripleChecker+Valid, 4047 IncrementalHoareTripleChecker+Invalid, 16 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 51.9s IncrementalHoareTripleChecker+Time [2021-12-06 23:24:54,978 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1446 Valid, 9012 Invalid, 6236 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2173 Valid, 4047 Invalid, 16 Unknown, 0 Unchecked, 51.9s Time] [2021-12-06 23:24:54,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3235 states. [2021-12-06 23:24:55,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3235 to 3057. [2021-12-06 23:24:55,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3057 states, 2068 states have (on average 1.2886847195357833) internal successors, (2665), 2090 states have internal predecessors, (2665), 862 states have call successors, (862), 127 states have call predecessors, (862), 126 states have return successors, (860), 856 states have call predecessors, (860), 860 states have call successors, (860) [2021-12-06 23:24:55,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3057 states to 3057 states and 4387 transitions. [2021-12-06 23:24:55,268 INFO L78 Accepts]: Start accepts. Automaton has 3057 states and 4387 transitions. Word has length 172 [2021-12-06 23:24:55,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:24:55,269 INFO L470 AbstractCegarLoop]: Abstraction has 3057 states and 4387 transitions. [2021-12-06 23:24:55,269 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 2 states have internal predecessors, (57), 2 states have call successors, (18), 5 states have call predecessors, (18), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-12-06 23:24:55,269 INFO L276 IsEmpty]: Start isEmpty. Operand 3057 states and 4387 transitions. [2021-12-06 23:24:55,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2021-12-06 23:24:55,275 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:24:55,275 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:24:55,275 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-06 23:24:55,276 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 23:24:55,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:24:55,276 INFO L85 PathProgramCache]: Analyzing trace with hash -333627761, now seen corresponding path program 1 times [2021-12-06 23:24:55,276 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 23:24:55,277 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [612971075] [2021-12-06 23:24:55,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:24:55,277 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 23:24:55,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:24:55,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 23:24:55,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:24:55,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:24:55,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:24:55,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 23:24:55,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:24:55,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-06 23:24:55,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:24:55,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:24:55,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:24:55,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 23:24:55,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:24:55,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-06 23:24:55,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:24:55,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:24:55,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:24:55,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 23:24:55,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:24:55,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-12-06 23:24:55,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:24:55,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:24:55,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:24:55,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-06 23:24:55,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:24:55,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:24:55,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:24:55,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-06 23:24:55,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:24:55,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:24:55,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:24:55,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-12-06 23:24:55,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:24:55,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:24:55,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:24:55,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-12-06 23:24:55,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:24:55,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:24:55,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:24:55,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-12-06 23:24:55,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:24:55,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:24:55,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:24:55,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-12-06 23:24:55,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:24:55,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:24:55,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:24:55,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-12-06 23:24:55,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:24:55,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:24:55,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:24:55,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2021-12-06 23:24:55,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:24:55,943 INFO L134 CoverageAnalysis]: Checked inductivity of 294 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 294 trivial. 0 not checked. [2021-12-06 23:24:55,943 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 23:24:55,943 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [612971075] [2021-12-06 23:24:55,943 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [612971075] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:24:55,943 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:24:55,943 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-06 23:24:55,944 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1446037819] [2021-12-06 23:24:55,944 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:24:55,945 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-06 23:24:55,945 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 23:24:55,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-06 23:24:55,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-06 23:24:55,945 INFO L87 Difference]: Start difference. First operand 3057 states and 4387 transitions. Second operand has 6 states, 6 states have (on average 9.5) internal successors, (57), 3 states have internal predecessors, (57), 2 states have call successors, (18), 5 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-12-06 23:25:02,242 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:25:04,294 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:25:06,344 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:25:19,550 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:25:21,596 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:25:24,936 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:25:26,138 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:25:29,598 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:25:31,655 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:25:33,707 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:25:39,597 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:25:40,754 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:25:44,259 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:25:46,317 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:25:48,359 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:25:51,368 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:25:53,413 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:25:54,824 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:25:57,699 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:25:59,837 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:26:01,967 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:26:05,561 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:26:07,725 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:26:09,860 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:26:10,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:26:10,619 INFO L93 Difference]: Finished difference Result 8892 states and 12819 transitions. [2021-12-06 23:26:10,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-06 23:26:10,620 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 3 states have internal predecessors, (57), 2 states have call successors, (18), 5 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 172 [2021-12-06 23:26:10,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:26:10,666 INFO L225 Difference]: With dead ends: 8892 [2021-12-06 23:26:10,667 INFO L226 Difference]: Without dead ends: 5861 [2021-12-06 23:26:10,681 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-12-06 23:26:10,682 INFO L933 BasicCegarLoop]: 4884 mSDtfsCounter, 5356 mSDsluCounter, 8778 mSDsCounter, 0 mSdLazyCounter, 6832 mSolverCounterSat, 4155 mSolverCounterUnsat, 21 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 69.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5846 SdHoareTripleChecker+Valid, 13662 SdHoareTripleChecker+Invalid, 11008 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4155 IncrementalHoareTripleChecker+Valid, 6832 IncrementalHoareTripleChecker+Invalid, 21 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 74.0s IncrementalHoareTripleChecker+Time [2021-12-06 23:26:10,682 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5846 Valid, 13662 Invalid, 11008 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4155 Valid, 6832 Invalid, 21 Unknown, 0 Unchecked, 74.0s Time] [2021-12-06 23:26:10,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5861 states. [2021-12-06 23:26:10,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5861 to 5501. [2021-12-06 23:26:10,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5501 states, 3702 states have (on average 1.2825499729875742) internal successors, (4748), 3740 states have internal predecessors, (4748), 1565 states have call successors, (1565), 234 states have call predecessors, (1565), 233 states have return successors, (1563), 1553 states have call predecessors, (1563), 1563 states have call successors, (1563) [2021-12-06 23:26:10,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5501 states to 5501 states and 7876 transitions. [2021-12-06 23:26:10,984 INFO L78 Accepts]: Start accepts. Automaton has 5501 states and 7876 transitions. Word has length 172 [2021-12-06 23:26:10,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:26:10,985 INFO L470 AbstractCegarLoop]: Abstraction has 5501 states and 7876 transitions. [2021-12-06 23:26:10,985 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 3 states have internal predecessors, (57), 2 states have call successors, (18), 5 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-12-06 23:26:10,985 INFO L276 IsEmpty]: Start isEmpty. Operand 5501 states and 7876 transitions. [2021-12-06 23:26:10,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2021-12-06 23:26:10,990 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:26:10,990 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:26:10,991 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-06 23:26:10,991 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 23:26:10,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:26:10,991 INFO L85 PathProgramCache]: Analyzing trace with hash -1828859180, now seen corresponding path program 1 times [2021-12-06 23:26:10,991 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 23:26:10,991 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [74596848] [2021-12-06 23:26:10,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:26:10,992 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 23:26:11,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:26:11,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 23:26:11,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:26:11,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:26:11,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:26:11,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 23:26:11,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:26:11,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-06 23:26:11,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:26:11,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:26:11,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:26:11,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 23:26:11,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:26:11,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-06 23:26:11,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:26:11,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:26:11,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:26:11,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 23:26:11,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:26:11,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-12-06 23:26:11,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:26:11,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:26:11,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:26:11,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-06 23:26:11,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:26:11,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:26:11,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:26:11,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-06 23:26:11,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:26:11,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:26:11,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:26:11,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-12-06 23:26:11,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:26:11,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:26:11,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:26:11,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-12-06 23:26:11,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:26:11,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:26:11,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:26:11,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-12-06 23:26:11,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:26:11,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:26:11,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:26:11,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-12-06 23:26:11,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:26:11,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:26:11,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:26:11,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-12-06 23:26:11,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:26:11,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:26:11,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:26:11,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-12-06 23:26:11,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:26:11,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-12-06 23:26:11,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:26:11,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2021-12-06 23:26:11,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:26:11,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-12-06 23:26:11,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:26:11,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:26:11,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:26:11,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2021-12-06 23:26:11,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:26:11,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:26:11,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:26:11,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-06 23:26:11,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:26:11,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-06 23:26:11,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:26:11,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2021-12-06 23:26:11,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:26:11,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2021-12-06 23:26:11,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:26:11,796 INFO L134 CoverageAnalysis]: Checked inductivity of 300 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 300 trivial. 0 not checked. [2021-12-06 23:26:11,796 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 23:26:11,796 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [74596848] [2021-12-06 23:26:11,796 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [74596848] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:26:11,796 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:26:11,796 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-06 23:26:11,796 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1464836469] [2021-12-06 23:26:11,796 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:26:11,797 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-06 23:26:11,797 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 23:26:11,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-06 23:26:11,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2021-12-06 23:26:11,798 INFO L87 Difference]: Start difference. First operand 5501 states and 7876 transitions. Second operand has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (30), 6 states have call predecessors, (30), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2021-12-06 23:26:18,926 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:26:20,980 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:26:23,037 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:26:35,802 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:26:37,853 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:26:39,908 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:26:45,803 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:26:48,098 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:26:51,686 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.68s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:26:53,585 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:26:57,617 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:26:59,684 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:27:01,735 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:27:09,411 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:27:11,464 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:27:14,878 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:27:19,020 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:27:21,074 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:27:23,142 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:27:30,049 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:27:32,095 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:27:34,148 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:27:37,565 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:27:39,639 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:27:41,720 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:27:44,087 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:27:46,123 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:27:49,779 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:27:51,854 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:27:54,133 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.28s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:27:55,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:27:55,730 INFO L93 Difference]: Finished difference Result 16873 states and 24278 transitions. [2021-12-06 23:27:55,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-06 23:27:55,731 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (30), 6 states have call predecessors, (30), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 221 [2021-12-06 23:27:55,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:27:55,811 INFO L225 Difference]: With dead ends: 16873 [2021-12-06 23:27:55,812 INFO L226 Difference]: Without dead ends: 11398 [2021-12-06 23:27:55,835 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-12-06 23:27:55,836 INFO L933 BasicCegarLoop]: 4937 mSDtfsCounter, 7381 mSDsluCounter, 9001 mSDsCounter, 0 mSdLazyCounter, 7015 mSolverCounterSat, 6351 mSolverCounterUnsat, 28 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 97.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8116 SdHoareTripleChecker+Valid, 13938 SdHoareTripleChecker+Invalid, 13394 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 6351 IncrementalHoareTripleChecker+Valid, 7015 IncrementalHoareTripleChecker+Invalid, 28 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 103.1s IncrementalHoareTripleChecker+Time [2021-12-06 23:27:55,836 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8116 Valid, 13938 Invalid, 13394 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [6351 Valid, 7015 Invalid, 28 Unknown, 0 Unchecked, 103.1s Time] [2021-12-06 23:27:55,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11398 states. [2021-12-06 23:27:56,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11398 to 10730. [2021-12-06 23:27:56,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10730 states, 7226 states have (on average 1.280929975089953) internal successors, (9256), 7299 states have internal predecessors, (9256), 3043 states have call successors, (3043), 461 states have call predecessors, (3043), 460 states have return successors, (3041), 3021 states have call predecessors, (3041), 3041 states have call successors, (3041) [2021-12-06 23:27:56,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10730 states to 10730 states and 15340 transitions. [2021-12-06 23:27:56,412 INFO L78 Accepts]: Start accepts. Automaton has 10730 states and 15340 transitions. Word has length 221 [2021-12-06 23:27:56,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:27:56,413 INFO L470 AbstractCegarLoop]: Abstraction has 10730 states and 15340 transitions. [2021-12-06 23:27:56,413 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (30), 6 states have call predecessors, (30), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2021-12-06 23:27:56,413 INFO L276 IsEmpty]: Start isEmpty. Operand 10730 states and 15340 transitions. [2021-12-06 23:27:56,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 356 [2021-12-06 23:27:56,423 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:27:56,423 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:27:56,423 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-06 23:27:56,423 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 23:27:56,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:27:56,424 INFO L85 PathProgramCache]: Analyzing trace with hash 259802755, now seen corresponding path program 1 times [2021-12-06 23:27:56,424 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 23:27:56,424 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [513144175] [2021-12-06 23:27:56,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:27:56,424 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 23:27:56,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:27:56,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 23:27:56,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:27:56,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:27:56,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:27:56,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 23:27:56,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:27:56,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-06 23:27:56,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:27:56,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:27:56,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:27:56,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 23:27:56,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:27:56,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-06 23:27:56,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:27:56,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:27:56,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:27:56,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 23:27:56,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:27:56,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-12-06 23:27:56,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:27:56,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:27:56,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:27:56,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-06 23:27:56,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:27:56,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:27:56,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:27:56,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-06 23:27:56,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:27:56,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:27:56,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:27:56,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-12-06 23:27:56,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:27:56,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:27:56,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:27:56,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-12-06 23:27:56,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:27:56,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:27:56,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:27:56,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-12-06 23:27:56,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:27:56,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:27:56,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:27:56,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-12-06 23:27:56,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:27:56,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:27:56,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:27:57,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-12-06 23:27:57,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:27:57,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:27:57,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:27:57,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-06 23:27:57,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:27:57,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:27:57,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:27:57,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 23:27:57,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:27:57,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-12-06 23:27:57,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:27:57,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:27:57,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:27:57,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 23:27:57,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:27:57,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2021-12-06 23:27:57,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:27:57,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:27:57,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:27:57,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 23:27:57,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:27:57,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2021-12-06 23:27:57,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:27:57,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:27:57,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:27:57,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 23:27:57,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:27:57,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2021-12-06 23:27:57,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:27:57,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:27:57,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:27:57,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 23:27:57,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:27:57,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2021-12-06 23:27:57,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:27:57,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:27:57,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:27:57,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 23:27:57,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:27:57,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2021-12-06 23:27:57,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:27:57,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:27:57,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:27:57,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 23:27:57,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:27:57,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2021-12-06 23:27:57,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:27:57,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:27:57,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:27:57,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 23:27:57,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:27:57,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 276 [2021-12-06 23:27:57,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:27:57,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:27:57,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:27:57,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2021-12-06 23:27:57,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:27:57,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:27:57,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:27:57,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 298 [2021-12-06 23:27:57,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:27:57,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:27:57,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:27:57,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 309 [2021-12-06 23:27:57,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:27:57,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:27:57,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:27:57,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 334 [2021-12-06 23:27:57,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:27:57,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 340 [2021-12-06 23:27:57,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:27:57,278 INFO L134 CoverageAnalysis]: Checked inductivity of 1364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1364 trivial. 0 not checked. [2021-12-06 23:27:57,278 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 23:27:57,278 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [513144175] [2021-12-06 23:27:57,278 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [513144175] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:27:57,278 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:27:57,278 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-06 23:27:57,278 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1446045021] [2021-12-06 23:27:57,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:27:57,279 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-06 23:27:57,279 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 23:27:57,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-06 23:27:57,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-06 23:27:57,280 INFO L87 Difference]: Start difference. First operand 10730 states and 15340 transitions. Second operand has 6 states, 6 states have (on average 13.0) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (31), 5 states have call predecessors, (31), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2021-12-06 23:28:04,532 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:28:06,577 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:28:33,498 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.99s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:28:35,549 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:28:40,191 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:28:42,239 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:28:45,134 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:28:47,187 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:28:52,671 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:28:54,720 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:28:58,431 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:29:00,468 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:29:04,281 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:29:06,350 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:29:07,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:29:07,784 INFO L93 Difference]: Finished difference Result 31469 states and 45067 transitions. [2021-12-06 23:29:07,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-06 23:29:07,785 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (31), 5 states have call predecessors, (31), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 355 [2021-12-06 23:29:07,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:29:07,892 INFO L225 Difference]: With dead ends: 31469 [2021-12-06 23:29:07,892 INFO L226 Difference]: Without dead ends: 20765 [2021-12-06 23:29:07,938 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-12-06 23:29:07,939 INFO L933 BasicCegarLoop]: 4769 mSDtfsCounter, 5704 mSDsluCounter, 8810 mSDsCounter, 0 mSdLazyCounter, 6677 mSolverCounterSat, 4333 mSolverCounterUnsat, 13 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 64.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6183 SdHoareTripleChecker+Valid, 13579 SdHoareTripleChecker+Invalid, 11023 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4333 IncrementalHoareTripleChecker+Valid, 6677 IncrementalHoareTripleChecker+Invalid, 13 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 69.3s IncrementalHoareTripleChecker+Time [2021-12-06 23:29:07,939 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6183 Valid, 13579 Invalid, 11023 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4333 Valid, 6677 Invalid, 13 Unknown, 0 Unchecked, 69.3s Time] [2021-12-06 23:29:07,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20765 states. [2021-12-06 23:29:08,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20765 to 19450. [2021-12-06 23:29:08,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19450 states, 13146 states have (on average 1.277803134033166) internal successors, (16798), 13269 states have internal predecessors, (16798), 5425 states have call successors, (5425), 879 states have call predecessors, (5425), 878 states have return successors, (5423), 5389 states have call predecessors, (5423), 5423 states have call successors, (5423) [2021-12-06 23:29:08,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19450 states to 19450 states and 27646 transitions. [2021-12-06 23:29:08,855 INFO L78 Accepts]: Start accepts. Automaton has 19450 states and 27646 transitions. Word has length 355 [2021-12-06 23:29:08,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:29:08,856 INFO L470 AbstractCegarLoop]: Abstraction has 19450 states and 27646 transitions. [2021-12-06 23:29:08,856 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (31), 5 states have call predecessors, (31), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2021-12-06 23:29:08,856 INFO L276 IsEmpty]: Start isEmpty. Operand 19450 states and 27646 transitions. [2021-12-06 23:29:08,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 344 [2021-12-06 23:29:08,869 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:29:08,870 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 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] [2021-12-06 23:29:08,870 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-06 23:29:08,870 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 23:29:08,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:29:08,870 INFO L85 PathProgramCache]: Analyzing trace with hash 838719141, now seen corresponding path program 1 times [2021-12-06 23:29:08,870 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 23:29:08,870 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [618856519] [2021-12-06 23:29:08,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:29:08,871 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 23:29:09,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:29:09,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 23:29:09,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:29:09,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:29:09,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:29:09,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 23:29:09,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:29:09,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-06 23:29:09,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:29:09,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:29:09,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:29:09,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 23:29:09,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:29:09,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-06 23:29:09,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:29:09,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:29:09,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:29:09,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 23:29:09,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:29:09,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-12-06 23:29:09,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:29:09,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:29:09,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:29:09,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-06 23:29:09,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:29:09,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:29:09,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:29:09,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-06 23:29:09,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:29:09,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:29:09,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:29:09,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-12-06 23:29:09,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:29:09,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:29:09,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:29:09,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-12-06 23:29:09,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:29:09,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:29:09,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:29:09,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-12-06 23:29:09,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:29:09,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:29:09,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:29:09,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-12-06 23:29:09,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:29:09,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:29:09,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:29:09,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-12-06 23:29:09,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:29:09,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:29:09,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:29:09,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-12-06 23:29:09,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:29:09,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:29:09,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:29:09,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 23:29:09,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:29:09,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2021-12-06 23:29:09,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:29:09,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2021-12-06 23:29:09,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:29:09,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:29:09,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:29:09,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 23:29:09,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:29:09,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2021-12-06 23:29:09,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:29:09,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:29:09,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:29:09,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 23:29:09,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:29:09,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2021-12-06 23:29:09,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:29:09,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:29:09,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:29:09,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 23:29:09,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:29:09,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2021-12-06 23:29:09,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:29:09,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:29:09,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:29:09,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 23:29:09,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:29:09,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2021-12-06 23:29:09,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:29:09,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:29:09,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:29:09,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 23:29:09,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:29:09,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2021-12-06 23:29:09,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:29:09,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 277 [2021-12-06 23:29:09,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:29:09,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2021-12-06 23:29:09,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:29:09,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 286 [2021-12-06 23:29:09,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:29:09,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:29:09,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:29:09,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 299 [2021-12-06 23:29:09,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:29:09,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:29:09,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:29:09,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-06 23:29:09,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:29:09,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-06 23:29:09,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:29:09,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 323 [2021-12-06 23:29:09,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:29:09,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 328 [2021-12-06 23:29:09,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:29:09,881 INFO L134 CoverageAnalysis]: Checked inductivity of 766 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 762 trivial. 0 not checked. [2021-12-06 23:29:09,882 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 23:29:09,882 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [618856519] [2021-12-06 23:29:09,882 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [618856519] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:29:09,882 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:29:09,882 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-06 23:29:09,882 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1132570404] [2021-12-06 23:29:09,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:29:09,883 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-06 23:29:09,883 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 23:29:09,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-06 23:29:09,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2021-12-06 23:29:09,883 INFO L87 Difference]: Start difference. First operand 19450 states and 27646 transitions. Second operand has 8 states, 8 states have (on average 13.75) internal successors, (110), 3 states have internal predecessors, (110), 3 states have call successors, (37), 7 states have call predecessors, (37), 1 states have return successors, (32), 3 states have call predecessors, (32), 3 states have call successors, (32) [2021-12-06 23:29:20,372 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:29:22,419 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:29:38,706 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:29:40,747 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:30:06,960 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:30:09,005 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:30:16,113 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:30:19,626 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:30:21,667 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:30:26,393 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:30:28,446 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:30:32,199 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:30:34,243 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:30:38,156 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:30:40,211 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:30:47,307 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:30:49,360 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:30:52,874 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:30:55,716 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:30:59,719 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:31:01,761 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:31:03,801 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:31:05,833 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:31:11,757 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:31:15,047 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:31:17,170 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:31:19,776 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:31:21,867 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:31:24,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:31:24,145 INFO L93 Difference]: Finished difference Result 51272 states and 73365 transitions. [2021-12-06 23:31:24,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-06 23:31:24,146 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.75) internal successors, (110), 3 states have internal predecessors, (110), 3 states have call successors, (37), 7 states have call predecessors, (37), 1 states have return successors, (32), 3 states have call predecessors, (32), 3 states have call successors, (32) Word has length 343 [2021-12-06 23:31:24,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:31:24,289 INFO L225 Difference]: With dead ends: 51272 [2021-12-06 23:31:24,289 INFO L226 Difference]: Without dead ends: 31853 [2021-12-06 23:31:24,346 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-12-06 23:31:24,346 INFO L933 BasicCegarLoop]: 7690 mSDtfsCounter, 4357 mSDsluCounter, 15767 mSDsCounter, 0 mSdLazyCounter, 11964 mSolverCounterSat, 2021 mSolverCounterUnsat, 26 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 124.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5178 SdHoareTripleChecker+Valid, 23457 SdHoareTripleChecker+Invalid, 14011 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 2021 IncrementalHoareTripleChecker+Valid, 11964 IncrementalHoareTripleChecker+Invalid, 26 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 132.4s IncrementalHoareTripleChecker+Time [2021-12-06 23:31:24,347 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5178 Valid, 23457 Invalid, 14011 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [2021 Valid, 11964 Invalid, 26 Unknown, 0 Unchecked, 132.4s Time] [2021-12-06 23:31:24,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31853 states. [2021-12-06 23:31:25,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31853 to 29203. [2021-12-06 23:31:25,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29203 states, 19753 states have (on average 1.2776287146256264) internal successors, (25237), 19946 states have internal predecessors, (25237), 8126 states have call successors, (8126), 1320 states have call predecessors, (8126), 1323 states have return successors, (8136), 8070 states have call predecessors, (8136), 8124 states have call successors, (8136) [2021-12-06 23:31:25,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29203 states to 29203 states and 41499 transitions. [2021-12-06 23:31:25,721 INFO L78 Accepts]: Start accepts. Automaton has 29203 states and 41499 transitions. Word has length 343 [2021-12-06 23:31:25,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:31:25,721 INFO L470 AbstractCegarLoop]: Abstraction has 29203 states and 41499 transitions. [2021-12-06 23:31:25,721 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.75) internal successors, (110), 3 states have internal predecessors, (110), 3 states have call successors, (37), 7 states have call predecessors, (37), 1 states have return successors, (32), 3 states have call predecessors, (32), 3 states have call successors, (32) [2021-12-06 23:31:25,721 INFO L276 IsEmpty]: Start isEmpty. Operand 29203 states and 41499 transitions. [2021-12-06 23:31:25,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 357 [2021-12-06 23:31:25,734 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:31:25,734 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:31:25,734 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-06 23:31:25,734 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 23:31:25,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:31:25,735 INFO L85 PathProgramCache]: Analyzing trace with hash -1571403000, now seen corresponding path program 1 times [2021-12-06 23:31:25,735 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 23:31:25,735 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [542462759] [2021-12-06 23:31:25,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:31:25,735 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 23:31:25,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:31:26,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 23:31:26,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:31:26,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:31:26,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:31:26,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 23:31:26,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:31:26,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-06 23:31:26,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:31:26,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:31:26,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:31:26,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 23:31:26,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:31:26,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-06 23:31:26,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:31:26,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:31:26,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:31:26,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 23:31:26,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:31:26,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-12-06 23:31:26,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:31:26,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:31:26,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:31:26,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-06 23:31:26,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:31:26,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:31:26,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:31:26,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-06 23:31:26,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:31:26,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:31:26,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:31:26,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-12-06 23:31:26,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:31:26,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:31:26,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:31:26,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-12-06 23:31:26,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:31:26,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:31:26,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:31:26,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-12-06 23:31:26,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:31:26,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:31:26,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:31:26,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-12-06 23:31:26,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:31:26,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:31:26,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:31:26,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-12-06 23:31:26,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:31:26,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:31:26,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:31:26,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-12-06 23:31:26,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:31:26,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:31:26,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:31:26,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 23:31:26,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:31:26,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2021-12-06 23:31:26,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:31:26,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2021-12-06 23:31:26,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:31:26,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:31:26,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:31:26,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 23:31:26,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:31:26,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2021-12-06 23:31:26,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:31:26,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:31:26,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:31:26,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 23:31:26,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:31:26,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2021-12-06 23:31:26,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:31:26,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:31:26,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:31:26,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 23:31:26,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:31:26,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2021-12-06 23:31:26,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:31:26,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:31:26,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:31:26,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 23:31:26,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:31:26,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2021-12-06 23:31:26,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:31:26,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:31:26,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:31:26,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 23:31:26,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:31:26,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 284 [2021-12-06 23:31:26,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:31:26,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 290 [2021-12-06 23:31:26,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:31:26,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2021-12-06 23:31:26,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:31:26,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 299 [2021-12-06 23:31:26,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:31:26,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:31:26,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:31:26,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 312 [2021-12-06 23:31:26,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:31:26,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:31:26,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:31:26,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-06 23:31:26,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:31:26,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-06 23:31:26,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:31:26,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 336 [2021-12-06 23:31:26,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:31:26,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 341 [2021-12-06 23:31:26,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:31:26,567 INFO L134 CoverageAnalysis]: Checked inductivity of 778 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 766 trivial. 0 not checked. [2021-12-06 23:31:26,567 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 23:31:26,567 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [542462759] [2021-12-06 23:31:26,567 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [542462759] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:31:26,567 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:31:26,567 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-06 23:31:26,567 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1397272949] [2021-12-06 23:31:26,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:31:26,568 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-06 23:31:26,568 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 23:31:26,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-06 23:31:26,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2021-12-06 23:31:26,569 INFO L87 Difference]: Start difference. First operand 29203 states and 41499 transitions. Second operand has 8 states, 8 states have (on average 15.0) internal successors, (120), 3 states have internal predecessors, (120), 2 states have call successors, (37), 7 states have call predecessors, (37), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2021-12-06 23:31:36,270 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:31:38,316 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:31:54,970 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:31:57,011 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:32:21,470 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:32:24,002 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.58s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:32:30,944 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.74s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:32:32,990 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:32:35,350 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:32:37,396 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:32:41,646 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:32:43,714 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:32:46,259 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:32:48,307 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:32:58,377 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:33:00,419 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:33:03,053 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:33:05,265 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.75s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:33:07,413 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:33:09,461 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:33:14,224 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:33:15,409 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:33:17,440 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:33:19,476 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:33:25,056 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:33:27,134 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:33:28,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:33:28,322 INFO L93 Difference]: Finished difference Result 71675 states and 102467 transitions. [2021-12-06 23:33:28,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-06 23:33:28,323 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 15.0) internal successors, (120), 3 states have internal predecessors, (120), 2 states have call successors, (37), 7 states have call predecessors, (37), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) Word has length 356 [2021-12-06 23:33:28,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:33:28,483 INFO L225 Difference]: With dead ends: 71675 [2021-12-06 23:33:28,483 INFO L226 Difference]: Without dead ends: 42503 [2021-12-06 23:33:28,554 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-12-06 23:33:28,555 INFO L933 BasicCegarLoop]: 7170 mSDtfsCounter, 5723 mSDsluCounter, 15003 mSDsCounter, 0 mSdLazyCounter, 10601 mSolverCounterSat, 5110 mSolverCounterUnsat, 22 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 112.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6545 SdHoareTripleChecker+Valid, 22173 SdHoareTripleChecker+Invalid, 15733 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 5110 IncrementalHoareTripleChecker+Valid, 10601 IncrementalHoareTripleChecker+Invalid, 22 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 119.6s IncrementalHoareTripleChecker+Time [2021-12-06 23:33:28,555 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6545 Valid, 22173 Invalid, 15733 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [5110 Valid, 10601 Invalid, 22 Unknown, 0 Unchecked, 119.6s Time] [2021-12-06 23:33:28,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42503 states. [2021-12-06 23:33:30,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42503 to 38964. [2021-12-06 23:33:30,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38964 states, 26368 states have (on average 1.2774575242718447) internal successors, (33684), 26623 states have internal predecessors, (33684), 10827 states have call successors, (10827), 1765 states have call predecessors, (10827), 1768 states have return successors, (10837), 10755 states have call predecessors, (10837), 10825 states have call successors, (10837) [2021-12-06 23:33:30,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38964 states to 38964 states and 55348 transitions. [2021-12-06 23:33:30,289 INFO L78 Accepts]: Start accepts. Automaton has 38964 states and 55348 transitions. Word has length 356 [2021-12-06 23:33:30,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:33:30,290 INFO L470 AbstractCegarLoop]: Abstraction has 38964 states and 55348 transitions. [2021-12-06 23:33:30,290 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 15.0) internal successors, (120), 3 states have internal predecessors, (120), 2 states have call successors, (37), 7 states have call predecessors, (37), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2021-12-06 23:33:30,290 INFO L276 IsEmpty]: Start isEmpty. Operand 38964 states and 55348 transitions. [2021-12-06 23:33:30,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 368 [2021-12-06 23:33:30,312 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:33:30,313 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 4, 4, 4, 3, 3, 3, 3, 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] [2021-12-06 23:33:30,313 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-06 23:33:30,313 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 23:33:30,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:33:30,313 INFO L85 PathProgramCache]: Analyzing trace with hash -114862830, now seen corresponding path program 1 times [2021-12-06 23:33:30,313 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 23:33:30,313 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [450698306] [2021-12-06 23:33:30,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:33:30,314 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 23:33:30,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:33:30,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 23:33:30,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:33:30,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:33:30,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:33:30,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 23:33:30,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:33:30,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-06 23:33:30,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:33:30,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:33:30,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:33:30,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 23:33:30,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:33:30,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-06 23:33:30,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:33:30,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:33:30,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:33:30,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 23:33:30,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:33:30,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-12-06 23:33:30,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:33:30,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:33:30,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:33:30,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-06 23:33:30,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:33:30,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:33:30,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:33:30,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-06 23:33:30,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:33:30,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:33:30,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:33:30,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-12-06 23:33:30,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:33:30,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:33:30,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:33:30,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-12-06 23:33:30,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:33:30,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:33:30,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:33:31,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-12-06 23:33:31,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:33:31,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:33:31,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:33:31,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-12-06 23:33:31,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:33:31,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:33:31,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:33:31,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-12-06 23:33:31,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:33:31,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:33:31,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:33:31,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-12-06 23:33:31,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:33:31,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:33:31,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:33:31,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 23:33:31,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:33:31,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2021-12-06 23:33:31,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:33:31,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2021-12-06 23:33:31,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:33:31,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:33:31,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:33:31,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 23:33:31,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:33:31,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2021-12-06 23:33:31,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:33:31,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:33:31,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:33:31,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 23:33:31,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:33:31,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2021-12-06 23:33:31,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:33:31,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:33:31,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:33:31,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 23:33:31,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:33:31,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2021-12-06 23:33:31,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:33:31,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:33:31,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:33:31,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 23:33:31,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:33:31,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2021-12-06 23:33:31,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:33:31,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:33:31,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:33:31,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 23:33:31,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:33:31,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2021-12-06 23:33:31,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:33:31,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 301 [2021-12-06 23:33:31,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:33:31,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 306 [2021-12-06 23:33:31,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:33:31,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 310 [2021-12-06 23:33:31,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:33:31,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:33:31,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:33:31,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 323 [2021-12-06 23:33:31,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:33:31,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:33:31,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:33:31,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-06 23:33:31,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:33:31,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-06 23:33:31,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:33:31,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 347 [2021-12-06 23:33:31,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:33:31,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 352 [2021-12-06 23:33:31,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:33:31,409 INFO L134 CoverageAnalysis]: Checked inductivity of 799 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 799 trivial. 0 not checked. [2021-12-06 23:33:31,409 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 23:33:31,409 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [450698306] [2021-12-06 23:33:31,409 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [450698306] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:33:31,409 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:33:31,410 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-06 23:33:31,410 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1781580015] [2021-12-06 23:33:31,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:33:31,411 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-06 23:33:31,411 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 23:33:31,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-06 23:33:31,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2021-12-06 23:33:31,412 INFO L87 Difference]: Start difference. First operand 38964 states and 55348 transitions. Second operand has 8 states, 8 states have (on average 14.5) internal successors, (116), 3 states have internal predecessors, (116), 3 states have call successors, (37), 8 states have call predecessors, (37), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2021-12-06 23:33:38,069 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:33:40,111 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:33:54,707 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.81s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:33:56,760 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:33:59,827 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.70s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:34:01,621 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.79s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:34:04,254 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:34:06,307 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:34:09,799 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:34:11,106 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:34:14,244 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:34:16,287 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:34:19,258 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:34:21,335 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:34:21,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:34:21,908 INFO L93 Difference]: Finished difference Result 42499 states and 60959 transitions. [2021-12-06 23:34:21,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-06 23:34:21,909 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.5) internal successors, (116), 3 states have internal predecessors, (116), 3 states have call successors, (37), 8 states have call predecessors, (37), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) Word has length 367 [2021-12-06 23:34:21,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:34:21,912 INFO L225 Difference]: With dead ends: 42499 [2021-12-06 23:34:21,912 INFO L226 Difference]: Without dead ends: 0 [2021-12-06 23:34:22,009 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-12-06 23:34:22,010 INFO L933 BasicCegarLoop]: 3947 mSDtfsCounter, 5050 mSDsluCounter, 5085 mSDsCounter, 0 mSdLazyCounter, 3694 mSolverCounterSat, 3056 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 46.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5595 SdHoareTripleChecker+Valid, 9032 SdHoareTripleChecker+Invalid, 6759 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3056 IncrementalHoareTripleChecker+Valid, 3694 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 49.1s IncrementalHoareTripleChecker+Time [2021-12-06 23:34:22,010 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5595 Valid, 9032 Invalid, 6759 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3056 Valid, 3694 Invalid, 9 Unknown, 0 Unchecked, 49.1s Time] [2021-12-06 23:34:22,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-12-06 23:34:22,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-12-06 23:34:22,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:34:22,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-12-06 23:34:22,019 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 367 [2021-12-06 23:34:22,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:34:22,019 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-06 23:34:22,019 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.5) internal successors, (116), 3 states have internal predecessors, (116), 3 states have call successors, (37), 8 states have call predecessors, (37), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2021-12-06 23:34:22,019 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-12-06 23:34:22,019 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-12-06 23:34:22,021 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-06 23:34:22,022 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-06 23:34:22,023 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.