./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-validator-v0.8/linux-stable-5fdb450-1-144_2a-drivers--mmc--host--vub300.ko-entry_point_ldv-val-v0.8.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version ff03de63 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-validator-v0.8/linux-stable-5fdb450-1-144_2a-drivers--mmc--host--vub300.ko-entry_point_ldv-val-v0.8.cil.out.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 0f420ae29f1d217fd86475befc2729bf689978fed36c08e1357ee5c24faa0f48 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-ff03de6 [2021-12-21 16:23:15,056 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-21 16:23:15,058 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-21 16:23:15,085 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-21 16:23:15,085 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-21 16:23:15,086 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-21 16:23:15,087 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-21 16:23:15,088 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-21 16:23:15,104 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-21 16:23:15,120 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-21 16:23:15,120 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-21 16:23:15,122 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-21 16:23:15,122 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-21 16:23:15,123 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-21 16:23:15,123 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-21 16:23:15,124 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-21 16:23:15,125 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-21 16:23:15,125 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-21 16:23:15,126 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-21 16:23:15,128 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-21 16:23:15,129 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-21 16:23:15,130 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-21 16:23:15,131 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-21 16:23:15,135 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-21 16:23:15,137 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-21 16:23:15,143 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-21 16:23:15,143 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-21 16:23:15,144 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-21 16:23:15,145 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-21 16:23:15,146 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-21 16:23:15,146 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-21 16:23:15,147 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-21 16:23:15,147 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-21 16:23:15,148 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-21 16:23:15,154 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-21 16:23:15,155 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-21 16:23:15,155 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-21 16:23:15,155 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-21 16:23:15,156 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-21 16:23:15,156 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-21 16:23:15,157 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-21 16:23:15,160 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-21 16:23:15,187 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-21 16:23:15,187 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-21 16:23:15,188 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-21 16:23:15,188 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-21 16:23:15,189 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-21 16:23:15,189 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-21 16:23:15,189 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-21 16:23:15,190 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-21 16:23:15,190 INFO L138 SettingsManager]: * Use SBE=true [2021-12-21 16:23:15,190 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-21 16:23:15,191 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-21 16:23:15,191 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-21 16:23:15,191 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-21 16:23:15,191 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-21 16:23:15,191 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-21 16:23:15,192 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-21 16:23:15,192 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-21 16:23:15,192 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-21 16:23:15,192 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-21 16:23:15,192 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-21 16:23:15,192 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-21 16:23:15,192 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-21 16:23:15,193 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-21 16:23:15,193 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-21 16:23:15,193 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-21 16:23:15,193 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-21 16:23:15,193 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-21 16:23:15,195 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-21 16:23:15,195 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-21 16:23:15,195 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-21 16:23:15,195 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-21 16:23:15,195 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:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0f420ae29f1d217fd86475befc2729bf689978fed36c08e1357ee5c24faa0f48 [2021-12-21 16:23:15,384 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-21 16:23:15,406 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-21 16:23:15,409 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-21 16:23:15,410 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-21 16:23:15,410 INFO L275 PluginConnector]: CDTParser initialized [2021-12-21 16:23:15,411 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-validator-v0.8/linux-stable-5fdb450-1-144_2a-drivers--mmc--host--vub300.ko-entry_point_ldv-val-v0.8.cil.out.i [2021-12-21 16:23:15,487 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/54c069960/e27dc402c7184e1e83cd00987a2367ef/FLAG3f2474ec9 [2021-12-21 16:23:16,196 INFO L306 CDTParser]: Found 1 translation units. [2021-12-21 16:23:16,196 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-validator-v0.8/linux-stable-5fdb450-1-144_2a-drivers--mmc--host--vub300.ko-entry_point_ldv-val-v0.8.cil.out.i [2021-12-21 16:23:16,232 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/54c069960/e27dc402c7184e1e83cd00987a2367ef/FLAG3f2474ec9 [2021-12-21 16:23:16,496 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/54c069960/e27dc402c7184e1e83cd00987a2367ef [2021-12-21 16:23:16,498 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-21 16:23:16,499 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-21 16:23:16,501 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-21 16:23:16,501 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-21 16:23:16,504 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-21 16:23:16,504 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 04:23:16" (1/1) ... [2021-12-21 16:23:16,505 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@134bb6a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:23:16, skipping insertion in model container [2021-12-21 16:23:16,505 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 04:23:16" (1/1) ... [2021-12-21 16:23:16,510 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-21 16:23:16,570 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-21 16:23:17,670 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-validator-v0.8/linux-stable-5fdb450-1-144_2a-drivers--mmc--host--vub300.ko-entry_point_ldv-val-v0.8.cil.out.i[238753,238766] [2021-12-21 16:23:17,713 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 16:23:17,747 INFO L203 MainTranslator]: Completed pre-run [2021-12-21 16:23:17,987 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-validator-v0.8/linux-stable-5fdb450-1-144_2a-drivers--mmc--host--vub300.ko-entry_point_ldv-val-v0.8.cil.out.i[238753,238766] [2021-12-21 16:23:17,997 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 16:23:18,069 INFO L208 MainTranslator]: Completed translation [2021-12-21 16:23:18,071 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:23:18 WrapperNode [2021-12-21 16:23:18,071 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-21 16:23:18,072 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-21 16:23:18,072 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-21 16:23:18,073 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-21 16:23:18,078 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:23:18" (1/1) ... [2021-12-21 16:23:18,145 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:23:18" (1/1) ... [2021-12-21 16:23:18,264 INFO L137 Inliner]: procedures = 257, calls = 1800, calls flagged for inlining = 103, calls inlined = 99, statements flattened = 4507 [2021-12-21 16:23:18,264 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-21 16:23:18,265 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-21 16:23:18,265 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-21 16:23:18,265 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-21 16:23:18,272 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:23:18" (1/1) ... [2021-12-21 16:23:18,273 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:23:18" (1/1) ... [2021-12-21 16:23:18,299 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:23:18" (1/1) ... [2021-12-21 16:23:18,300 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:23:18" (1/1) ... [2021-12-21 16:23:18,436 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:23:18" (1/1) ... [2021-12-21 16:23:18,458 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:23:18" (1/1) ... [2021-12-21 16:23:18,480 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:23:18" (1/1) ... [2021-12-21 16:23:18,508 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-21 16:23:18,509 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-21 16:23:18,509 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-21 16:23:18,509 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-21 16:23:18,510 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:23:18" (1/1) ... [2021-12-21 16:23:18,517 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-21 16:23:18,525 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 16:23:18,549 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-21 16:23:18,576 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-21 16:23:18,600 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2021-12-21 16:23:18,600 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2021-12-21 16:23:18,600 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-21 16:23:18,601 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-21 16:23:18,601 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-21 16:23:18,601 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-21 16:23:18,601 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-12-21 16:23:18,601 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-12-21 16:23:18,601 INFO L130 BoogieDeclarations]: Found specification of procedure vub300_delete [2021-12-21 16:23:18,601 INFO L138 BoogieDeclarations]: Found implementation of procedure vub300_delete [2021-12-21 16:23:18,601 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_fill_bulk_urb_11 [2021-12-21 16:23:18,601 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_fill_bulk_urb_11 [2021-12-21 16:23:18,602 INFO L130 BoogieDeclarations]: Found specification of procedure usb_sg_wait [2021-12-21 16:23:18,602 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_sg_wait [2021-12-21 16:23:18,602 INFO L130 BoogieDeclarations]: Found specification of procedure vub300_usb_bulk_msg [2021-12-21 16:23:18,602 INFO L138 BoogieDeclarations]: Found implementation of procedure vub300_usb_bulk_msg [2021-12-21 16:23:18,602 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_urb [2021-12-21 16:23:18,602 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_urb [2021-12-21 16:23:18,602 INFO L130 BoogieDeclarations]: Found specification of procedure wait_for_completion_timeout [2021-12-21 16:23:18,602 INFO L138 BoogieDeclarations]: Found implementation of procedure wait_for_completion_timeout [2021-12-21 16:23:18,602 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-21 16:23:18,603 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-21 16:23:18,603 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_alloc_urb [2021-12-21 16:23:18,603 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_alloc_urb [2021-12-21 16:23:18,603 INFO L130 BoogieDeclarations]: Found specification of procedure destroy_workqueue [2021-12-21 16:23:18,603 INFO L138 BoogieDeclarations]: Found implementation of procedure destroy_workqueue [2021-12-21 16:23:18,603 INFO L130 BoogieDeclarations]: Found specification of procedure mmc_signal_sdio_irq [2021-12-21 16:23:18,603 INFO L138 BoogieDeclarations]: Found implementation of procedure mmc_signal_sdio_irq [2021-12-21 16:23:18,603 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-12-21 16:23:18,604 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-12-21 16:23:18,604 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-12-21 16:23:18,604 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-12-21 16:23:18,604 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-12-21 16:23:18,604 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-12-21 16:23:18,604 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_get_intfdata_49 [2021-12-21 16:23:18,604 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_get_intfdata_49 [2021-12-21 16:23:18,604 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-21 16:23:18,604 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-21 16:23:18,605 INFO L130 BoogieDeclarations]: Found specification of procedure mmc_detect_change [2021-12-21 16:23:18,605 INFO L138 BoogieDeclarations]: Found implementation of procedure mmc_detect_change [2021-12-21 16:23:18,605 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer [2021-12-21 16:23:18,605 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer [2021-12-21 16:23:18,605 INFO L130 BoogieDeclarations]: Found specification of procedure usb_sg_cancel [2021-12-21 16:23:18,605 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_sg_cancel [2021-12-21 16:23:18,605 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~VOID [2021-12-21 16:23:18,606 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~VOID [2021-12-21 16:23:18,606 INFO L130 BoogieDeclarations]: Found specification of procedure usb_sg_init [2021-12-21 16:23:18,606 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_sg_init [2021-12-21 16:23:18,606 INFO L130 BoogieDeclarations]: Found specification of procedure __command_read_data [2021-12-21 16:23:18,606 INFO L138 BoogieDeclarations]: Found implementation of procedure __command_read_data [2021-12-21 16:23:18,606 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_26 [2021-12-21 16:23:18,606 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_26 [2021-12-21 16:23:18,606 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-21 16:23:18,606 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_28 [2021-12-21 16:23:18,607 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_28 [2021-12-21 16:23:18,607 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-12-21 16:23:18,607 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-12-21 16:23:18,608 INFO L130 BoogieDeclarations]: Found specification of procedure usb_unlink_urb [2021-12-21 16:23:18,608 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_unlink_urb [2021-12-21 16:23:18,608 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-21 16:23:18,609 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_12 [2021-12-21 16:23:18,609 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_12 [2021-12-21 16:23:18,609 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2021-12-21 16:23:18,609 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2021-12-21 16:23:18,609 INFO L130 BoogieDeclarations]: Found specification of procedure irqpoll_out_completed [2021-12-21 16:23:18,609 INFO L138 BoogieDeclarations]: Found implementation of procedure irqpoll_out_completed [2021-12-21 16:23:18,609 INFO L130 BoogieDeclarations]: Found specification of procedure vub300_disconnect [2021-12-21 16:23:18,609 INFO L138 BoogieDeclarations]: Found implementation of procedure vub300_disconnect [2021-12-21 16:23:18,610 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_14 [2021-12-21 16:23:18,610 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_14 [2021-12-21 16:23:18,610 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_work_3 [2021-12-21 16:23:18,610 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_work_3 [2021-12-21 16:23:18,610 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-21 16:23:18,610 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-21 16:23:18,611 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2021-12-21 16:23:18,611 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2021-12-21 16:23:18,611 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-12-21 16:23:18,611 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-12-21 16:23:18,611 INFO L130 BoogieDeclarations]: Found specification of procedure vub300_enable_sdio_irq [2021-12-21 16:23:18,611 INFO L138 BoogieDeclarations]: Found implementation of procedure vub300_enable_sdio_irq [2021-12-21 16:23:18,611 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2021-12-21 16:23:18,611 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2021-12-21 16:23:18,611 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2021-12-21 16:23:18,612 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2021-12-21 16:23:18,612 INFO L130 BoogieDeclarations]: Found specification of procedure add_offloaded_reg [2021-12-21 16:23:18,612 INFO L138 BoogieDeclarations]: Found implementation of procedure add_offloaded_reg [2021-12-21 16:23:18,612 INFO L130 BoogieDeclarations]: Found specification of procedure release_firmware [2021-12-21 16:23:18,612 INFO L138 BoogieDeclarations]: Found implementation of procedure release_firmware [2021-12-21 16:23:18,612 INFO L130 BoogieDeclarations]: Found specification of procedure command_out_completed [2021-12-21 16:23:18,612 INFO L138 BoogieDeclarations]: Found implementation of procedure command_out_completed [2021-12-21 16:23:18,613 INFO L130 BoogieDeclarations]: Found specification of procedure roundup_to_multiple_of_64 [2021-12-21 16:23:18,613 INFO L138 BoogieDeclarations]: Found implementation of procedure roundup_to_multiple_of_64 [2021-12-21 16:23:18,613 INFO L130 BoogieDeclarations]: Found specification of procedure flush_workqueue [2021-12-21 16:23:18,613 INFO L138 BoogieDeclarations]: Found implementation of procedure flush_workqueue [2021-12-21 16:23:18,614 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-21 16:23:18,614 INFO L130 BoogieDeclarations]: Found specification of procedure vub300_cmndwork_thread [2021-12-21 16:23:18,614 INFO L138 BoogieDeclarations]: Found implementation of procedure vub300_cmndwork_thread [2021-12-21 16:23:18,614 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-21 16:23:18,614 INFO L130 BoogieDeclarations]: Found specification of procedure send_command [2021-12-21 16:23:18,614 INFO L138 BoogieDeclarations]: Found implementation of procedure send_command [2021-12-21 16:23:18,615 INFO L130 BoogieDeclarations]: Found specification of procedure kref_get [2021-12-21 16:23:18,615 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_get [2021-12-21 16:23:18,615 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-21 16:23:18,615 INFO L130 BoogieDeclarations]: Found specification of procedure activate_pending_timer_6 [2021-12-21 16:23:18,615 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_pending_timer_6 [2021-12-21 16:23:18,615 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_bulk [2021-12-21 16:23:18,615 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_bulk [2021-12-21 16:23:18,615 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-12-21 16:23:18,616 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-12-21 16:23:18,616 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2021-12-21 16:23:18,616 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2021-12-21 16:23:18,616 INFO L130 BoogieDeclarations]: Found specification of procedure send_irqpoll [2021-12-21 16:23:18,616 INFO L138 BoogieDeclarations]: Found implementation of procedure send_irqpoll [2021-12-21 16:23:18,616 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2021-12-21 16:23:18,617 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2021-12-21 16:23:18,617 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-12-21 16:23:18,617 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-12-21 16:23:18,617 INFO L130 BoogieDeclarations]: Found specification of procedure init_completion [2021-12-21 16:23:18,618 INFO L138 BoogieDeclarations]: Found implementation of procedure init_completion [2021-12-21 16:23:18,619 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-21 16:23:18,619 INFO L130 BoogieDeclarations]: Found specification of procedure vub300_response_error [2021-12-21 16:23:18,620 INFO L138 BoogieDeclarations]: Found implementation of procedure vub300_response_error [2021-12-21 16:23:18,620 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_is_bulk_out [2021-12-21 16:23:18,620 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_is_bulk_out [2021-12-21 16:23:18,621 INFO L130 BoogieDeclarations]: Found specification of procedure mmc_free_host [2021-12-21 16:23:18,621 INFO L138 BoogieDeclarations]: Found implementation of procedure mmc_free_host [2021-12-21 16:23:18,621 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-21 16:23:18,622 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-21 16:23:18,625 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_31 [2021-12-21 16:23:18,626 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_31 [2021-12-21 16:23:18,626 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2021-12-21 16:23:18,626 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2021-12-21 16:23:18,626 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-21 16:23:18,626 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_timer_6 [2021-12-21 16:23:18,626 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_timer_6 [2021-12-21 16:23:18,626 INFO L130 BoogieDeclarations]: Found specification of procedure vub300_queue_poll_work [2021-12-21 16:23:18,626 INFO L138 BoogieDeclarations]: Found implementation of procedure vub300_queue_poll_work [2021-12-21 16:23:18,626 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2021-12-21 16:23:18,627 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2021-12-21 16:23:18,627 INFO L130 BoogieDeclarations]: Found specification of procedure complete [2021-12-21 16:23:18,627 INFO L138 BoogieDeclarations]: Found implementation of procedure complete [2021-12-21 16:23:18,627 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_is_bulk_in [2021-12-21 16:23:18,627 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_is_bulk_in [2021-12-21 16:23:18,627 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-21 16:23:18,627 INFO L130 BoogieDeclarations]: Found specification of procedure sg_copy_to_buffer [2021-12-21 16:23:18,627 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_copy_to_buffer [2021-12-21 16:23:18,627 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_6 [2021-12-21 16:23:18,627 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_6 [2021-12-21 16:23:18,628 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_put_8 [2021-12-21 16:23:18,628 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_put_8 [2021-12-21 16:23:18,628 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-12-21 16:23:18,628 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-12-21 16:23:18,628 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-21 16:23:18,628 INFO L130 BoogieDeclarations]: Found specification of procedure __download_offload_pseudocode [2021-12-21 16:23:18,628 INFO L138 BoogieDeclarations]: Found implementation of procedure __download_offload_pseudocode [2021-12-21 16:23:18,628 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-12-21 16:23:18,628 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-12-21 16:23:18,628 INFO L130 BoogieDeclarations]: Found specification of procedure vub300_pollwork_thread [2021-12-21 16:23:18,629 INFO L138 BoogieDeclarations]: Found implementation of procedure vub300_pollwork_thread [2021-12-21 16:23:18,629 INFO L130 BoogieDeclarations]: Found specification of procedure interface_to_InterfaceNumber [2021-12-21 16:23:18,629 INFO L138 BoogieDeclarations]: Found implementation of procedure interface_to_InterfaceNumber [2021-12-21 16:23:18,629 INFO L130 BoogieDeclarations]: Found specification of procedure usb_control_msg [2021-12-21 16:23:18,629 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_control_msg [2021-12-21 16:23:18,629 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2021-12-21 16:23:18,629 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2021-12-21 16:23:18,629 INFO L130 BoogieDeclarations]: Found specification of procedure __do_poll [2021-12-21 16:23:18,629 INFO L138 BoogieDeclarations]: Found implementation of procedure __do_poll [2021-12-21 16:23:18,629 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_all_3 [2021-12-21 16:23:18,629 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_all_3 [2021-12-21 16:23:18,630 INFO L130 BoogieDeclarations]: Found specification of procedure new_system_port_status [2021-12-21 16:23:18,630 INFO L138 BoogieDeclarations]: Found implementation of procedure new_system_port_status [2021-12-21 16:23:18,630 INFO L130 BoogieDeclarations]: Found specification of procedure mmc_request_done [2021-12-21 16:23:18,630 INFO L138 BoogieDeclarations]: Found implementation of procedure mmc_request_done [2021-12-21 16:23:18,630 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2021-12-21 16:23:18,630 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2021-12-21 16:23:18,630 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2021-12-21 16:23:18,630 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2021-12-21 16:23:18,630 INFO L130 BoogieDeclarations]: Found specification of procedure __command_write_data [2021-12-21 16:23:18,630 INFO L138 BoogieDeclarations]: Found implementation of procedure __command_write_data [2021-12-21 16:23:18,631 INFO L130 BoogieDeclarations]: Found specification of procedure request_firmware [2021-12-21 16:23:18,631 INFO L138 BoogieDeclarations]: Found implementation of procedure request_firmware [2021-12-21 16:23:18,631 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~TO~VOID [2021-12-21 16:23:18,631 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~TO~VOID [2021-12-21 16:23:18,631 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_set_intfdata_46 [2021-12-21 16:23:18,631 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_set_intfdata_46 [2021-12-21 16:23:18,631 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_urb [2021-12-21 16:23:18,631 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_urb [2021-12-21 16:23:18,631 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-21 16:23:18,631 INFO L130 BoogieDeclarations]: Found specification of procedure usb_string [2021-12-21 16:23:18,632 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_string [2021-12-21 16:23:18,632 INFO L130 BoogieDeclarations]: Found specification of procedure mmc_priv [2021-12-21 16:23:18,632 INFO L138 BoogieDeclarations]: Found implementation of procedure mmc_priv [2021-12-21 16:23:18,632 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work [2021-12-21 16:23:18,632 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work [2021-12-21 16:23:18,632 INFO L130 BoogieDeclarations]: Found specification of procedure vub300_deadwork_thread [2021-12-21 16:23:18,632 INFO L138 BoogieDeclarations]: Found implementation of procedure vub300_deadwork_thread [2021-12-21 16:23:18,632 INFO L130 BoogieDeclarations]: Found specification of procedure check_vub300_port_status [2021-12-21 16:23:18,632 INFO L138 BoogieDeclarations]: Found implementation of procedure check_vub300_port_status [2021-12-21 16:23:18,632 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2021-12-21 16:23:18,633 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-21 16:23:18,633 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-21 16:23:19,195 INFO L234 CfgBuilder]: Building ICFG [2021-12-21 16:23:19,197 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-21 16:23:20,050 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-21 16:23:23,149 INFO L275 CfgBuilder]: Performing block encoding [2021-12-21 16:23:23,169 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-21 16:23:23,169 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-21 16:23:23,173 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 04:23:23 BoogieIcfgContainer [2021-12-21 16:23:23,173 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-21 16:23:23,175 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-21 16:23:23,175 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-21 16:23:23,178 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-21 16:23:23,178 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.12 04:23:16" (1/3) ... [2021-12-21 16:23:23,178 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f5ad043 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 04:23:23, skipping insertion in model container [2021-12-21 16:23:23,179 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:23:18" (2/3) ... [2021-12-21 16:23:23,179 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f5ad043 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 04:23:23, skipping insertion in model container [2021-12-21 16:23:23,179 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 04:23:23" (3/3) ... [2021-12-21 16:23:23,180 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-stable-5fdb450-1-144_2a-drivers--mmc--host--vub300.ko-entry_point_ldv-val-v0.8.cil.out.i [2021-12-21 16:23:23,184 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-21 16:23:23,185 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-21 16:23:23,236 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-21 16:23:23,247 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 [2021-12-21 16:23:23,248 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-21 16:23:23,290 INFO L276 IsEmpty]: Start isEmpty. Operand has 1578 states, 1108 states have (on average 1.3998194945848375) internal successors, (1551), 1173 states have internal predecessors, (1551), 377 states have call successors, (377), 92 states have call predecessors, (377), 91 states have return successors, (368), 342 states have call predecessors, (368), 368 states have call successors, (368) [2021-12-21 16:23:23,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-12-21 16:23:23,308 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 16:23:23,309 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 16:23:23,309 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 16:23:23,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 16:23:23,316 INFO L85 PathProgramCache]: Analyzing trace with hash -695991338, now seen corresponding path program 1 times [2021-12-21 16:23:23,325 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 16:23:23,331 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1391696759] [2021-12-21 16:23:23,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 16:23:23,332 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 16:23:23,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:23:23,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-21 16:23:23,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:23:23,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:23:23,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:23:23,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:23:23,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:23:23,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-21 16:23:23,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:23:23,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:23:23,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:23:23,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:23:23,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:23:23,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-21 16:23:23,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:23:23,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:23:23,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:23:23,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:23:23,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:23:23,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-21 16:23:23,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:23:23,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:23:23,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:23:23,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:23:23,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:23:23,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-21 16:23:23,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:23:23,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:23:23,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:23:23,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-21 16:23:23,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:23:23,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:23:23,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:23:23,941 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2021-12-21 16:23:23,942 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 16:23:23,942 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1391696759] [2021-12-21 16:23:23,942 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1391696759] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 16:23:23,943 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 16:23:23,943 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-21 16:23:23,944 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1087269885] [2021-12-21 16:23:23,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 16:23:23,951 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-21 16:23:23,952 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 16:23:23,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-21 16:23:23,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-21 16:23:23,975 INFO L87 Difference]: Start difference. First operand has 1578 states, 1108 states have (on average 1.3998194945848375) internal successors, (1551), 1173 states have internal predecessors, (1551), 377 states have call successors, (377), 92 states have call predecessors, (377), 91 states have return successors, (368), 342 states have call predecessors, (368), 368 states have call successors, (368) Second operand has 5 states, 5 states have (on average 9.6) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (10), 5 states have call predecessors, (10), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-12-21 16:23:32,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 16:23:32,064 INFO L93 Difference]: Finished difference Result 3309 states and 4923 transitions. [2021-12-21 16:23:32,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-21 16:23:32,066 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (10), 5 states have call predecessors, (10), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 114 [2021-12-21 16:23:32,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 16:23:32,092 INFO L225 Difference]: With dead ends: 3309 [2021-12-21 16:23:32,093 INFO L226 Difference]: Without dead ends: 1720 [2021-12-21 16:23:32,102 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-12-21 16:23:32,111 INFO L933 BasicCegarLoop]: 2112 mSDtfsCounter, 1088 mSDsluCounter, 2303 mSDsCounter, 0 mSdLazyCounter, 2264 mSolverCounterSat, 964 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1119 SdHoareTripleChecker+Valid, 4415 SdHoareTripleChecker+Invalid, 3228 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 964 IncrementalHoareTripleChecker+Valid, 2264 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.9s IncrementalHoareTripleChecker+Time [2021-12-21 16:23:32,112 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1119 Valid, 4415 Invalid, 3228 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [964 Valid, 2264 Invalid, 0 Unknown, 0 Unchecked, 7.9s Time] [2021-12-21 16:23:32,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1720 states. [2021-12-21 16:23:32,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1720 to 1562. [2021-12-21 16:23:32,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1562 states, 1103 states have (on average 1.3907524932003625) internal successors, (1534), 1157 states have internal predecessors, (1534), 368 states have call successors, (368), 91 states have call predecessors, (368), 90 states have return successors, (363), 337 states have call predecessors, (363), 363 states have call successors, (363) [2021-12-21 16:23:32,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1562 states to 1562 states and 2265 transitions. [2021-12-21 16:23:32,264 INFO L78 Accepts]: Start accepts. Automaton has 1562 states and 2265 transitions. Word has length 114 [2021-12-21 16:23:32,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 16:23:32,264 INFO L470 AbstractCegarLoop]: Abstraction has 1562 states and 2265 transitions. [2021-12-21 16:23:32,265 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (10), 5 states have call predecessors, (10), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-12-21 16:23:32,265 INFO L276 IsEmpty]: Start isEmpty. Operand 1562 states and 2265 transitions. [2021-12-21 16:23:32,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-12-21 16:23:32,271 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 16:23:32,271 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 16:23:32,272 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-21 16:23:32,272 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 16:23:32,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 16:23:32,273 INFO L85 PathProgramCache]: Analyzing trace with hash 1398740446, now seen corresponding path program 1 times [2021-12-21 16:23:32,273 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 16:23:32,273 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [270202652] [2021-12-21 16:23:32,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 16:23:32,273 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 16:23:32,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:23:32,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-21 16:23:32,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:23:32,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:23:32,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:23:32,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:23:32,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:23:32,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-21 16:23:32,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:23:32,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:23:32,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:23:32,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:23:32,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:23:32,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-21 16:23:32,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:23:32,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:23:32,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:23:32,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:23:32,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:23:32,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-21 16:23:32,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:23:32,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:23:32,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:23:32,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:23:32,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:23:32,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-21 16:23:32,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:23:32,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:23:32,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:23:32,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-21 16:23:32,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:23:32,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:23:32,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:23:32,737 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2021-12-21 16:23:32,737 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 16:23:32,737 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [270202652] [2021-12-21 16:23:32,738 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [270202652] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 16:23:32,738 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 16:23:32,738 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-21 16:23:32,738 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2101720001] [2021-12-21 16:23:32,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 16:23:32,739 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-21 16:23:32,739 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 16:23:32,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-21 16:23:32,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-21 16:23:32,740 INFO L87 Difference]: Start difference. First operand 1562 states and 2265 transitions. Second operand has 6 states, 6 states have (on average 8.0) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (10), 5 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-12-21 16:23:42,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 16:23:42,815 INFO L93 Difference]: Finished difference Result 4952 states and 7650 transitions. [2021-12-21 16:23:42,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-21 16:23:42,816 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (10), 5 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 114 [2021-12-21 16:23:42,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 16:23:42,834 INFO L225 Difference]: With dead ends: 4952 [2021-12-21 16:23:42,834 INFO L226 Difference]: Without dead ends: 3413 [2021-12-21 16:23:42,841 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-12-21 16:23:42,845 INFO L933 BasicCegarLoop]: 2654 mSDtfsCounter, 4276 mSDsluCounter, 3694 mSDsCounter, 0 mSdLazyCounter, 3066 mSolverCounterSat, 2258 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4478 SdHoareTripleChecker+Valid, 6348 SdHoareTripleChecker+Invalid, 5324 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2258 IncrementalHoareTripleChecker+Valid, 3066 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.8s IncrementalHoareTripleChecker+Time [2021-12-21 16:23:42,846 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4478 Valid, 6348 Invalid, 5324 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2258 Valid, 3066 Invalid, 0 Unknown, 0 Unchecked, 9.8s Time] [2021-12-21 16:23:42,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3413 states. [2021-12-21 16:23:42,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3413 to 3183. [2021-12-21 16:23:42,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3183 states, 2243 states have (on average 1.384306732055283) internal successors, (3105), 2358 states have internal predecessors, (3105), 735 states have call successors, (735), 180 states have call predecessors, (735), 204 states have return successors, (939), 697 states have call predecessors, (939), 730 states have call successors, (939) [2021-12-21 16:23:42,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3183 states to 3183 states and 4779 transitions. [2021-12-21 16:23:42,971 INFO L78 Accepts]: Start accepts. Automaton has 3183 states and 4779 transitions. Word has length 114 [2021-12-21 16:23:42,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 16:23:42,973 INFO L470 AbstractCegarLoop]: Abstraction has 3183 states and 4779 transitions. [2021-12-21 16:23:42,974 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (10), 5 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-12-21 16:23:42,976 INFO L276 IsEmpty]: Start isEmpty. Operand 3183 states and 4779 transitions. [2021-12-21 16:23:42,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-12-21 16:23:42,983 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 16:23:42,983 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 16:23:42,983 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-21 16:23:42,984 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 16:23:42,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 16:23:42,984 INFO L85 PathProgramCache]: Analyzing trace with hash 410740249, now seen corresponding path program 1 times [2021-12-21 16:23:42,984 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 16:23:42,985 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [84489107] [2021-12-21 16:23:42,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 16:23:42,986 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 16:23:43,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:23:43,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-21 16:23:43,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:23:43,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:23:43,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:23:43,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:23:43,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:23:43,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-21 16:23:43,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:23:43,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:23:43,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:23:43,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:23:43,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:23:43,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-21 16:23:43,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:23:43,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:23:43,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:23:43,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:23:43,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:23:43,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-21 16:23:43,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:23:43,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:23:43,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:23:43,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:23:43,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:23:43,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-21 16:23:43,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:23:43,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:23:43,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:23:43,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-21 16:23:43,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:23:43,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:23:43,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:23:43,258 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2021-12-21 16:23:43,258 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 16:23:43,259 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [84489107] [2021-12-21 16:23:43,259 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [84489107] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 16:23:43,259 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 16:23:43,259 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-21 16:23:43,259 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1031928196] [2021-12-21 16:23:43,259 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 16:23:43,260 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-21 16:23:43,260 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 16:23:43,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-21 16:23:43,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-21 16:23:43,261 INFO L87 Difference]: Start difference. First operand 3183 states and 4779 transitions. Second operand has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 3 states have internal predecessors, (49), 3 states have call successors, (10), 5 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-12-21 16:23:53,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 16:23:53,579 INFO L93 Difference]: Finished difference Result 9935 states and 15966 transitions. [2021-12-21 16:23:53,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-21 16:23:53,579 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 3 states have internal predecessors, (49), 3 states have call successors, (10), 5 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 115 [2021-12-21 16:23:53,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 16:23:53,619 INFO L225 Difference]: With dead ends: 9935 [2021-12-21 16:23:53,619 INFO L226 Difference]: Without dead ends: 6775 [2021-12-21 16:23:53,640 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-12-21 16:23:53,641 INFO L933 BasicCegarLoop]: 2693 mSDtfsCounter, 4230 mSDsluCounter, 3660 mSDsCounter, 0 mSdLazyCounter, 3088 mSolverCounterSat, 2240 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4440 SdHoareTripleChecker+Valid, 6353 SdHoareTripleChecker+Invalid, 5328 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2240 IncrementalHoareTripleChecker+Valid, 3088 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.9s IncrementalHoareTripleChecker+Time [2021-12-21 16:23:53,642 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4440 Valid, 6353 Invalid, 5328 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2240 Valid, 3088 Invalid, 0 Unknown, 0 Unchecked, 9.9s Time] [2021-12-21 16:23:53,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6775 states. [2021-12-21 16:23:53,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6775 to 6358. [2021-12-21 16:23:53,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6358 states, 4480 states have (on average 1.3830357142857144) internal successors, (6196), 4713 states have internal predecessors, (6196), 1463 states have call successors, (1463), 358 states have call predecessors, (1463), 414 states have return successors, (2241), 1395 states have call predecessors, (2241), 1458 states have call successors, (2241) [2021-12-21 16:23:53,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6358 states to 6358 states and 9900 transitions. [2021-12-21 16:23:53,882 INFO L78 Accepts]: Start accepts. Automaton has 6358 states and 9900 transitions. Word has length 115 [2021-12-21 16:23:53,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 16:23:53,882 INFO L470 AbstractCegarLoop]: Abstraction has 6358 states and 9900 transitions. [2021-12-21 16:23:53,883 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 3 states have internal predecessors, (49), 3 states have call successors, (10), 5 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-12-21 16:23:53,883 INFO L276 IsEmpty]: Start isEmpty. Operand 6358 states and 9900 transitions. [2021-12-21 16:23:53,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-12-21 16:23:53,885 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 16:23:53,885 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 16:23:53,885 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-21 16:23:53,886 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 16:23:53,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 16:23:53,886 INFO L85 PathProgramCache]: Analyzing trace with hash -152489919, now seen corresponding path program 1 times [2021-12-21 16:23:53,886 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 16:23:53,886 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [636258958] [2021-12-21 16:23:53,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 16:23:53,887 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 16:23:53,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:23:53,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-21 16:23:53,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:23:53,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:23:53,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:23:54,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:23:54,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:23:54,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-21 16:23:54,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:23:54,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:23:54,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:23:54,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:23:54,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:23:54,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-21 16:23:54,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:23:54,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:23:54,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:23:54,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:23:54,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:23:54,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-21 16:23:54,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:23:54,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:23:54,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:23:54,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:23:54,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:23:54,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-21 16:23:54,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:23:54,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:23:54,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:23:54,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-21 16:23:54,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:23:54,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:23:54,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:23:54,090 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2021-12-21 16:23:54,091 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 16:23:54,091 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [636258958] [2021-12-21 16:23:54,091 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [636258958] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 16:23:54,091 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 16:23:54,091 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-21 16:23:54,091 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [856154078] [2021-12-21 16:23:54,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 16:23:54,092 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-21 16:23:54,092 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 16:23:54,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-21 16:23:54,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-21 16:23:54,093 INFO L87 Difference]: Start difference. First operand 6358 states and 9900 transitions. Second operand has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 3 states have internal predecessors, (50), 3 states have call successors, (10), 5 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-12-21 16:24:06,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 16:24:06,012 INFO L93 Difference]: Finished difference Result 6773 states and 10669 transitions. [2021-12-21 16:24:06,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-21 16:24:06,012 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 3 states have internal predecessors, (50), 3 states have call successors, (10), 5 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 116 [2021-12-21 16:24:06,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 16:24:06,048 INFO L225 Difference]: With dead ends: 6773 [2021-12-21 16:24:06,049 INFO L226 Difference]: Without dead ends: 6770 [2021-12-21 16:24:06,050 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-12-21 16:24:06,051 INFO L933 BasicCegarLoop]: 2696 mSDtfsCounter, 4098 mSDsluCounter, 4625 mSDsCounter, 0 mSdLazyCounter, 4087 mSolverCounterSat, 2132 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4312 SdHoareTripleChecker+Valid, 7321 SdHoareTripleChecker+Invalid, 6219 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2132 IncrementalHoareTripleChecker+Valid, 4087 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.6s IncrementalHoareTripleChecker+Time [2021-12-21 16:24:06,051 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4312 Valid, 7321 Invalid, 6219 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2132 Valid, 4087 Invalid, 0 Unknown, 0 Unchecked, 11.6s Time] [2021-12-21 16:24:06,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6770 states. [2021-12-21 16:24:06,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6770 to 6359. [2021-12-21 16:24:06,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6359 states, 4481 states have (on average 1.3829502343226958) internal successors, (6197), 4714 states have internal predecessors, (6197), 1463 states have call successors, (1463), 358 states have call predecessors, (1463), 414 states have return successors, (2241), 1395 states have call predecessors, (2241), 1458 states have call successors, (2241) [2021-12-21 16:24:06,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6359 states to 6359 states and 9901 transitions. [2021-12-21 16:24:06,254 INFO L78 Accepts]: Start accepts. Automaton has 6359 states and 9901 transitions. Word has length 116 [2021-12-21 16:24:06,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 16:24:06,255 INFO L470 AbstractCegarLoop]: Abstraction has 6359 states and 9901 transitions. [2021-12-21 16:24:06,255 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 3 states have internal predecessors, (50), 3 states have call successors, (10), 5 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-12-21 16:24:06,255 INFO L276 IsEmpty]: Start isEmpty. Operand 6359 states and 9901 transitions. [2021-12-21 16:24:06,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2021-12-21 16:24:06,257 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 16:24:06,257 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 16:24:06,257 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-21 16:24:06,258 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 16:24:06,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 16:24:06,258 INFO L85 PathProgramCache]: Analyzing trace with hash -432751076, now seen corresponding path program 1 times [2021-12-21 16:24:06,258 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 16:24:06,258 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1545007948] [2021-12-21 16:24:06,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 16:24:06,259 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 16:24:06,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:24:06,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-21 16:24:06,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:24:06,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:24:06,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:24:06,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:24:06,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:24:06,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-21 16:24:06,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:24:06,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:24:06,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:24:06,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:24:06,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:24:06,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-21 16:24:06,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:24:06,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:24:06,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:24:06,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:24:06,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:24:06,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-21 16:24:06,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:24:06,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:24:06,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:24:06,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:24:06,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:24:06,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-21 16:24:06,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:24:06,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:24:06,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:24:06,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-21 16:24:06,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:24:06,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:24:06,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:24:06,433 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2021-12-21 16:24:06,433 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 16:24:06,433 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1545007948] [2021-12-21 16:24:06,433 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1545007948] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 16:24:06,433 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 16:24:06,434 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-21 16:24:06,434 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [908344664] [2021-12-21 16:24:06,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 16:24:06,434 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-21 16:24:06,434 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 16:24:06,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-21 16:24:06,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-21 16:24:06,435 INFO L87 Difference]: Start difference. First operand 6359 states and 9901 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (10), 5 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-12-21 16:24:09,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 16:24:09,952 INFO L93 Difference]: Finished difference Result 6769 states and 10665 transitions. [2021-12-21 16:24:09,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-21 16:24:09,952 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (10), 5 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 117 [2021-12-21 16:24:09,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 16:24:09,984 INFO L225 Difference]: With dead ends: 6769 [2021-12-21 16:24:09,984 INFO L226 Difference]: Without dead ends: 6766 [2021-12-21 16:24:09,988 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-12-21 16:24:09,989 INFO L933 BasicCegarLoop]: 2062 mSDtfsCounter, 3576 mSDsluCounter, 829 mSDsCounter, 0 mSdLazyCounter, 978 mSolverCounterSat, 1775 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3784 SdHoareTripleChecker+Valid, 2891 SdHoareTripleChecker+Invalid, 2753 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1775 IncrementalHoareTripleChecker+Valid, 978 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2021-12-21 16:24:09,989 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3784 Valid, 2891 Invalid, 2753 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1775 Valid, 978 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2021-12-21 16:24:09,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6766 states. [2021-12-21 16:24:10,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6766 to 6358. [2021-12-21 16:24:10,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6358 states, 4481 states have (on average 1.3827270698504799) internal successors, (6196), 4713 states have internal predecessors, (6196), 1462 states have call successors, (1462), 358 states have call predecessors, (1462), 414 states have return successors, (2241), 1395 states have call predecessors, (2241), 1458 states have call successors, (2241) [2021-12-21 16:24:10,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6358 states to 6358 states and 9899 transitions. [2021-12-21 16:24:10,207 INFO L78 Accepts]: Start accepts. Automaton has 6358 states and 9899 transitions. Word has length 117 [2021-12-21 16:24:10,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 16:24:10,208 INFO L470 AbstractCegarLoop]: Abstraction has 6358 states and 9899 transitions. [2021-12-21 16:24:10,209 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (10), 5 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-12-21 16:24:10,209 INFO L276 IsEmpty]: Start isEmpty. Operand 6358 states and 9899 transitions. [2021-12-21 16:24:10,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2021-12-21 16:24:10,210 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 16:24:10,211 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 16:24:10,211 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-21 16:24:10,211 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 16:24:10,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 16:24:10,211 INFO L85 PathProgramCache]: Analyzing trace with hash -530907484, now seen corresponding path program 1 times [2021-12-21 16:24:10,211 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 16:24:10,215 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1569725476] [2021-12-21 16:24:10,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 16:24:10,215 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 16:24:10,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:24:10,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-21 16:24:10,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:24:10,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:24:10,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:24:10,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:24:10,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:24:10,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-21 16:24:10,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:24:10,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:24:10,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:24:10,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:24:10,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:24:10,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-21 16:24:10,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:24:10,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:24:10,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:24:10,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:24:10,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:24:10,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-21 16:24:10,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:24:10,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:24:10,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:24:10,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:24:10,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:24:10,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-21 16:24:10,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:24:10,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:24:10,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:24:10,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-21 16:24:10,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:24:10,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:24:10,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:24:10,445 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2021-12-21 16:24:10,445 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 16:24:10,446 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1569725476] [2021-12-21 16:24:10,446 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1569725476] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 16:24:10,446 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 16:24:10,446 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-21 16:24:10,446 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1518321998] [2021-12-21 16:24:10,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 16:24:10,447 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-21 16:24:10,447 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 16:24:10,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-21 16:24:10,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-21 16:24:10,447 INFO L87 Difference]: Start difference. First operand 6358 states and 9899 transitions. Second operand has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 3 states have internal predecessors, (52), 3 states have call successors, (10), 5 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-12-21 16:24:17,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 16:24:17,919 INFO L93 Difference]: Finished difference Result 6768 states and 10663 transitions. [2021-12-21 16:24:17,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-21 16:24:17,919 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 3 states have internal predecessors, (52), 3 states have call successors, (10), 5 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 118 [2021-12-21 16:24:17,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 16:24:17,961 INFO L225 Difference]: With dead ends: 6768 [2021-12-21 16:24:17,962 INFO L226 Difference]: Without dead ends: 6735 [2021-12-21 16:24:17,969 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-12-21 16:24:17,970 INFO L933 BasicCegarLoop]: 2058 mSDtfsCounter, 3002 mSDsluCounter, 2261 mSDsCounter, 0 mSdLazyCounter, 2306 mSolverCounterSat, 1261 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3208 SdHoareTripleChecker+Valid, 4319 SdHoareTripleChecker+Invalid, 3567 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1261 IncrementalHoareTripleChecker+Valid, 2306 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.3s IncrementalHoareTripleChecker+Time [2021-12-21 16:24:17,971 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3208 Valid, 4319 Invalid, 3567 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1261 Valid, 2306 Invalid, 0 Unknown, 0 Unchecked, 7.3s Time] [2021-12-21 16:24:17,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6735 states. [2021-12-21 16:24:18,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6735 to 6327. [2021-12-21 16:24:18,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6327 states, 4464 states have (on average 1.38328853046595) internal successors, (6175), 4695 states have internal predecessors, (6175), 1449 states have call successors, (1449), 357 states have call predecessors, (1449), 413 states have return successors, (2205), 1383 states have call predecessors, (2205), 1446 states have call successors, (2205) [2021-12-21 16:24:18,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6327 states to 6327 states and 9829 transitions. [2021-12-21 16:24:18,205 INFO L78 Accepts]: Start accepts. Automaton has 6327 states and 9829 transitions. Word has length 118 [2021-12-21 16:24:18,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 16:24:18,206 INFO L470 AbstractCegarLoop]: Abstraction has 6327 states and 9829 transitions. [2021-12-21 16:24:18,206 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 3 states have internal predecessors, (52), 3 states have call successors, (10), 5 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-12-21 16:24:18,206 INFO L276 IsEmpty]: Start isEmpty. Operand 6327 states and 9829 transitions. [2021-12-21 16:24:18,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2021-12-21 16:24:18,215 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 16:24:18,215 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 16:24:18,215 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-21 16:24:18,215 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 16:24:18,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 16:24:18,216 INFO L85 PathProgramCache]: Analyzing trace with hash 1173826115, now seen corresponding path program 1 times [2021-12-21 16:24:18,216 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 16:24:18,216 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1524917285] [2021-12-21 16:24:18,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 16:24:18,216 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 16:24:18,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:24:18,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-21 16:24:18,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:24:18,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:24:18,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:24:18,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:24:18,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:24:18,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-21 16:24:18,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:24:18,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:24:18,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:24:18,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:24:18,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:24:18,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-21 16:24:18,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:24:18,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:24:18,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:24:18,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:24:18,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:24:18,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-21 16:24:18,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:24:18,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:24:18,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:24:18,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:24:18,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:24:18,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-21 16:24:18,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:24:18,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:24:18,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:24:18,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-21 16:24:18,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:24:18,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:24:18,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:24:18,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-21 16:24:18,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:24:18,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-12-21 16:24:18,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:24:18,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2021-12-21 16:24:18,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:24:18,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-21 16:24:18,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:24:18,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-12-21 16:24:18,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:24:18,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-12-21 16:24:18,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:24:18,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:24:18,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:24:18,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-21 16:24:18,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:24:18,452 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2021-12-21 16:24:18,452 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 16:24:18,452 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1524917285] [2021-12-21 16:24:18,452 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1524917285] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 16:24:18,452 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 16:24:18,452 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-21 16:24:18,453 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [722191670] [2021-12-21 16:24:18,453 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 16:24:18,453 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-21 16:24:18,453 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 16:24:18,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-21 16:24:18,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-12-21 16:24:18,454 INFO L87 Difference]: Start difference. First operand 6327 states and 9829 transitions. Second operand has 8 states, 8 states have (on average 11.125) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (18), 7 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17)