./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--thunderbolt--thunderbolt.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0f8a17c6 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/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-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--thunderbolt--thunderbolt.ko-entry_point.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 d253b745dee5ef05ffbbca6087a2bac9710536fabca8626c0fece9fd6b3fe837 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-17 04:32:35,375 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-17 04:32:35,377 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-17 04:32:35,397 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-17 04:32:35,398 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-17 04:32:35,398 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-17 04:32:35,399 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-17 04:32:35,400 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-17 04:32:35,402 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-17 04:32:35,402 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-17 04:32:35,403 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-17 04:32:35,404 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-17 04:32:35,404 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-17 04:32:35,405 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-17 04:32:35,406 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-17 04:32:35,406 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-17 04:32:35,407 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-17 04:32:35,409 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-17 04:32:35,412 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-17 04:32:35,416 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-17 04:32:35,420 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-17 04:32:35,424 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-17 04:32:35,425 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-17 04:32:35,427 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-17 04:32:35,428 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-17 04:32:35,432 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-17 04:32:35,432 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-17 04:32:35,433 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-17 04:32:35,433 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-17 04:32:35,434 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-17 04:32:35,434 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-17 04:32:35,435 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-17 04:32:35,435 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-17 04:32:35,436 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-17 04:32:35,436 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-17 04:32:35,437 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-17 04:32:35,437 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-17 04:32:35,437 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-17 04:32:35,437 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-17 04:32:35,438 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-17 04:32:35,438 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-17 04:32:35,439 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-17 04:32:35,456 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-17 04:32:35,456 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-17 04:32:35,457 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-17 04:32:35,457 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-17 04:32:35,458 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-17 04:32:35,458 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-17 04:32:35,459 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-17 04:32:35,459 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-17 04:32:35,459 INFO L138 SettingsManager]: * Use SBE=true [2021-11-17 04:32:35,459 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-17 04:32:35,460 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-17 04:32:35,460 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-17 04:32:35,460 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-17 04:32:35,461 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-17 04:32:35,461 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-17 04:32:35,461 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-17 04:32:35,461 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-17 04:32:35,461 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-17 04:32:35,461 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-17 04:32:35,461 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-17 04:32:35,462 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-17 04:32:35,462 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-17 04:32:35,462 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-17 04:32:35,462 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-17 04:32:35,462 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-17 04:32:35,462 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-17 04:32:35,462 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-17 04:32:35,463 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-17 04:32:35,463 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-17 04:32:35,463 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-17 04:32:35,463 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-17 04:32:35,463 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d253b745dee5ef05ffbbca6087a2bac9710536fabca8626c0fece9fd6b3fe837 [2021-11-17 04:32:35,665 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-17 04:32:35,684 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-17 04:32:35,686 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-17 04:32:35,687 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-17 04:32:35,687 INFO L275 PluginConnector]: CDTParser initialized [2021-11-17 04:32:35,688 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--thunderbolt--thunderbolt.ko-entry_point.cil.out.i [2021-11-17 04:32:35,733 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/49f79f4b8/700805cfafa84eb198624a165023cddf/FLAG0c8957536 [2021-11-17 04:32:36,378 INFO L306 CDTParser]: Found 1 translation units. [2021-11-17 04:32:36,379 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--thunderbolt--thunderbolt.ko-entry_point.cil.out.i [2021-11-17 04:32:36,418 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/49f79f4b8/700805cfafa84eb198624a165023cddf/FLAG0c8957536 [2021-11-17 04:32:36,473 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/49f79f4b8/700805cfafa84eb198624a165023cddf [2021-11-17 04:32:36,475 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-17 04:32:36,477 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-17 04:32:36,478 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-17 04:32:36,478 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-17 04:32:36,480 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-17 04:32:36,481 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 04:32:36" (1/1) ... [2021-11-17 04:32:36,483 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@49bdb7c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 04:32:36, skipping insertion in model container [2021-11-17 04:32:36,483 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 04:32:36" (1/1) ... [2021-11-17 04:32:36,488 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-17 04:32:36,588 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-17 04:32:38,225 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-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--thunderbolt--thunderbolt.ko-entry_point.cil.out.i[312804,312817] [2021-11-17 04:32:38,312 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-17 04:32:38,325 INFO L203 MainTranslator]: Completed pre-run [2021-11-17 04:32:38,656 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-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--thunderbolt--thunderbolt.ko-entry_point.cil.out.i[312804,312817] [2021-11-17 04:32:38,666 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-17 04:32:38,823 INFO L208 MainTranslator]: Completed translation [2021-11-17 04:32:38,824 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 04:32:38 WrapperNode [2021-11-17 04:32:38,824 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-17 04:32:38,825 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-17 04:32:38,825 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-17 04:32:38,826 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-17 04:32:38,830 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 04:32:38" (1/1) ... [2021-11-17 04:32:38,922 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 04:32:38" (1/1) ... [2021-11-17 04:32:39,068 INFO L137 Inliner]: procedures = 480, calls = 3867, calls flagged for inlining = 166, calls inlined = 158, statements flattened = 7267 [2021-11-17 04:32:39,069 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-17 04:32:39,070 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-17 04:32:39,070 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-17 04:32:39,070 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-17 04:32:39,076 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 04:32:38" (1/1) ... [2021-11-17 04:32:39,076 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 04:32:38" (1/1) ... [2021-11-17 04:32:39,183 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 04:32:38" (1/1) ... [2021-11-17 04:32:39,185 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 04:32:38" (1/1) ... [2021-11-17 04:32:39,305 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 04:32:38" (1/1) ... [2021-11-17 04:32:39,326 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 04:32:38" (1/1) ... [2021-11-17 04:32:39,348 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 04:32:38" (1/1) ... [2021-11-17 04:32:39,379 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-17 04:32:39,380 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-17 04:32:39,380 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-17 04:32:39,380 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-17 04:32:39,381 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 04:32:38" (1/1) ... [2021-11-17 04:32:39,387 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-17 04:32:39,393 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-17 04:32:39,404 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) [2021-11-17 04:32:39,422 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 [2021-11-17 04:32:39,430 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock_of_tb_ring [2021-11-17 04:32:39,430 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock_of_tb_ring [2021-11-17 04:32:39,430 INFO L130 BoogieDeclarations]: Found specification of procedure thunderbolt_shutdown_and_free [2021-11-17 04:32:39,430 INFO L138 BoogieDeclarations]: Found implementation of procedure thunderbolt_shutdown_and_free [2021-11-17 04:32:39,430 INFO L130 BoogieDeclarations]: Found specification of procedure list_splice_tail_init [2021-11-17 04:32:39,430 INFO L138 BoogieDeclarations]: Found implementation of procedure list_splice_tail_init [2021-11-17 04:32:39,430 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-17 04:32:39,430 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-17 04:32:39,431 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-17 04:32:39,431 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-17 04:32:39,431 INFO L130 BoogieDeclarations]: Found specification of procedure tb_eeprom_get_drom_offset [2021-11-17 04:32:39,431 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_eeprom_get_drom_offset [2021-11-17 04:32:39,431 INFO L130 BoogieDeclarations]: Found specification of procedure tb_switch_free [2021-11-17 04:32:39,431 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_switch_free [2021-11-17 04:32:39,431 INFO L130 BoogieDeclarations]: Found specification of procedure activate_work_1 [2021-11-17 04:32:39,431 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_work_1 [2021-11-17 04:32:39,431 INFO L130 BoogieDeclarations]: Found specification of procedure ring_iowrite32options [2021-11-17 04:32:39,432 INFO L138 BoogieDeclarations]: Found implementation of procedure ring_iowrite32options [2021-11-17 04:32:39,432 INFO L130 BoogieDeclarations]: Found specification of procedure ring_interrupt_active [2021-11-17 04:32:39,432 INFO L138 BoogieDeclarations]: Found implementation of procedure ring_interrupt_active [2021-11-17 04:32:39,432 INFO L130 BoogieDeclarations]: Found specification of procedure tb_ctl_rx_submit [2021-11-17 04:32:39,432 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_ctl_rx_submit [2021-11-17 04:32:39,432 INFO L130 BoogieDeclarations]: Found specification of procedure nhi_disable_interrupts [2021-11-17 04:32:39,432 INFO L138 BoogieDeclarations]: Found implementation of procedure nhi_disable_interrupts [2021-11-17 04:32:39,432 INFO L130 BoogieDeclarations]: Found specification of procedure get_route [2021-11-17 04:32:39,432 INFO L138 BoogieDeclarations]: Found implementation of procedure get_route [2021-11-17 04:32:39,433 INFO L130 BoogieDeclarations]: Found specification of procedure check_header [2021-11-17 04:32:39,433 INFO L138 BoogieDeclarations]: Found implementation of procedure check_header [2021-11-17 04:32:39,433 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2021-11-17 04:32:39,433 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2021-11-17 04:32:39,433 INFO L130 BoogieDeclarations]: Found specification of procedure tb_activate_pcie_devices [2021-11-17 04:32:39,433 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_activate_pcie_devices [2021-11-17 04:32:39,433 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2021-11-17 04:32:39,433 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2021-11-17 04:32:39,433 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2021-11-17 04:32:39,434 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2021-11-17 04:32:39,434 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_lock_of_tb_ring [2021-11-17 04:32:39,434 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_lock_of_tb_ring [2021-11-17 04:32:39,434 INFO L130 BoogieDeclarations]: Found specification of procedure tb_cfg_read_raw [2021-11-17 04:32:39,434 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_cfg_read_raw [2021-11-17 04:32:39,434 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-17 04:32:39,434 INFO L130 BoogieDeclarations]: Found specification of procedure tb_cap_is_long [2021-11-17 04:32:39,434 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_cap_is_long [2021-11-17 04:32:39,434 INFO L130 BoogieDeclarations]: Found specification of procedure tb_sw_set_unpplugged [2021-11-17 04:32:39,435 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_sw_set_unpplugged [2021-11-17 04:32:39,435 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-11-17 04:32:39,435 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-11-17 04:32:39,435 INFO L130 BoogieDeclarations]: Found specification of procedure tb_crc8 [2021-11-17 04:32:39,435 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_crc8 [2021-11-17 04:32:39,435 INFO L130 BoogieDeclarations]: Found specification of procedure ring_write_descriptors [2021-11-17 04:32:39,435 INFO L138 BoogieDeclarations]: Found implementation of procedure ring_write_descriptors [2021-11-17 04:32:39,436 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-17 04:32:39,436 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-17 04:32:39,436 INFO L130 BoogieDeclarations]: Found specification of procedure tb_plug_events_active [2021-11-17 04:32:39,436 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_plug_events_active [2021-11-17 04:32:39,436 INFO L130 BoogieDeclarations]: Found specification of procedure flush_work [2021-11-17 04:32:39,436 INFO L138 BoogieDeclarations]: Found implementation of procedure flush_work [2021-11-17 04:32:39,437 INFO L130 BoogieDeclarations]: Found specification of procedure tb_ctl_stop [2021-11-17 04:32:39,437 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_ctl_stop [2021-11-17 04:32:39,438 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock_of_tb [2021-11-17 04:32:39,438 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock_of_tb [2021-11-17 04:32:39,438 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-17 04:32:39,438 INFO L130 BoogieDeclarations]: Found specification of procedure tb_cfg_print_error [2021-11-17 04:32:39,438 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_cfg_print_error [2021-11-17 04:32:39,438 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-17 04:32:39,438 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-17 04:32:39,438 INFO L130 BoogieDeclarations]: Found specification of procedure tb_port_add_nfc_credits [2021-11-17 04:32:39,439 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_port_add_nfc_credits [2021-11-17 04:32:39,439 INFO L130 BoogieDeclarations]: Found specification of procedure list_move_tail [2021-11-17 04:32:39,439 INFO L138 BoogieDeclarations]: Found implementation of procedure list_move_tail [2021-11-17 04:32:39,439 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_destroy [2021-11-17 04:32:39,439 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_destroy [2021-11-17 04:32:39,439 INFO L130 BoogieDeclarations]: Found specification of procedure tb_ctl_start [2021-11-17 04:32:39,439 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_ctl_start [2021-11-17 04:32:39,439 INFO L130 BoogieDeclarations]: Found specification of procedure ring_start [2021-11-17 04:32:39,439 INFO L138 BoogieDeclarations]: Found implementation of procedure ring_start [2021-11-17 04:32:39,440 INFO L130 BoogieDeclarations]: Found specification of procedure ring_stop [2021-11-17 04:32:39,440 INFO L138 BoogieDeclarations]: Found implementation of procedure ring_stop [2021-11-17 04:32:39,440 INFO L130 BoogieDeclarations]: Found specification of procedure tb_cfg_write [2021-11-17 04:32:39,440 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_cfg_write [2021-11-17 04:32:39,440 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2021-11-17 04:32:39,440 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2021-11-17 04:32:39,441 INFO L130 BoogieDeclarations]: Found specification of procedure tb_cfg_read [2021-11-17 04:32:39,441 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_cfg_read [2021-11-17 04:32:39,441 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2021-11-17 04:32:39,441 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2021-11-17 04:32:39,441 INFO L130 BoogieDeclarations]: Found specification of procedure tb_path_free [2021-11-17 04:32:39,441 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_path_free [2021-11-17 04:32:39,441 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-17 04:32:39,441 INFO L130 BoogieDeclarations]: Found specification of procedure ring_interrupt_index [2021-11-17 04:32:39,442 INFO L138 BoogieDeclarations]: Found implementation of procedure ring_interrupt_index [2021-11-17 04:32:39,442 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2021-11-17 04:32:39,442 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2021-11-17 04:32:39,442 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-17 04:32:39,442 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-17 04:32:39,442 INFO L130 BoogieDeclarations]: Found specification of procedure tb_cap_is_basic [2021-11-17 04:32:39,443 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_cap_is_basic [2021-11-17 04:32:39,443 INFO L130 BoogieDeclarations]: Found specification of procedure tb_upstream_port [2021-11-17 04:32:39,443 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_upstream_port [2021-11-17 04:32:39,443 INFO L130 BoogieDeclarations]: Found specification of procedure __ring_enqueue [2021-11-17 04:32:39,444 INFO L138 BoogieDeclarations]: Found implementation of procedure __ring_enqueue [2021-11-17 04:32:39,444 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2021-11-17 04:32:39,444 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2021-11-17 04:32:39,444 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-11-17 04:32:39,444 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-11-17 04:32:39,444 INFO L130 BoogieDeclarations]: Found specification of procedure dev_name [2021-11-17 04:32:39,445 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_name [2021-11-17 04:32:39,445 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_lock_of_tb [2021-11-17 04:32:39,445 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_lock_of_tb [2021-11-17 04:32:39,445 INFO L130 BoogieDeclarations]: Found specification of procedure tb_ctl_rx [2021-11-17 04:32:39,445 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_ctl_rx [2021-11-17 04:32:39,445 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-17 04:32:39,446 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-17 04:32:39,446 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2021-11-17 04:32:39,446 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2021-11-17 04:32:39,446 INFO L130 BoogieDeclarations]: Found specification of procedure ring_desc_base [2021-11-17 04:32:39,446 INFO L138 BoogieDeclarations]: Found implementation of procedure ring_desc_base [2021-11-17 04:32:39,446 INFO L130 BoogieDeclarations]: Found specification of procedure nhi_shutdown [2021-11-17 04:32:39,447 INFO L138 BoogieDeclarations]: Found implementation of procedure nhi_shutdown [2021-11-17 04:32:39,448 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2021-11-17 04:32:39,448 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2021-11-17 04:32:39,449 INFO L130 BoogieDeclarations]: Found specification of procedure tb_scan_port [2021-11-17 04:32:39,449 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_scan_port [2021-11-17 04:32:39,449 INFO L130 BoogieDeclarations]: Found specification of procedure tb_eeprom_active [2021-11-17 04:32:39,450 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_eeprom_active [2021-11-17 04:32:39,450 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-17 04:32:39,450 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-17 04:32:39,450 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-17 04:32:39,454 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-17 04:32:39,454 INFO L130 BoogieDeclarations]: Found specification of procedure tb_eeprom_read_n [2021-11-17 04:32:39,454 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_eeprom_read_n [2021-11-17 04:32:39,455 INFO L130 BoogieDeclarations]: Found specification of procedure tb_ctl_tx [2021-11-17 04:32:39,455 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_ctl_tx [2021-11-17 04:32:39,455 INFO L130 BoogieDeclarations]: Found specification of procedure tb_sw_read [2021-11-17 04:32:39,455 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_sw_read [2021-11-17 04:32:39,455 INFO L130 BoogieDeclarations]: Found specification of procedure ring_work [2021-11-17 04:32:39,455 INFO L138 BoogieDeclarations]: Found implementation of procedure ring_work [2021-11-17 04:32:39,455 INFO L130 BoogieDeclarations]: Found specification of procedure devm_kmalloc [2021-11-17 04:32:39,455 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_kmalloc [2021-11-17 04:32:39,455 INFO L130 BoogieDeclarations]: Found specification of procedure ring_iowrite16desc [2021-11-17 04:32:39,455 INFO L138 BoogieDeclarations]: Found implementation of procedure ring_iowrite16desc [2021-11-17 04:32:39,455 INFO L130 BoogieDeclarations]: Found specification of procedure tb_ctl_pkg_free [2021-11-17 04:32:39,456 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_ctl_pkg_free [2021-11-17 04:32:39,456 INFO L130 BoogieDeclarations]: Found specification of procedure list_del_init [2021-11-17 04:32:39,456 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del_init [2021-11-17 04:32:39,456 INFO L130 BoogieDeclarations]: Found specification of procedure tb_find_cap [2021-11-17 04:32:39,456 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_find_cap [2021-11-17 04:32:39,456 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-11-17 04:32:39,456 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-11-17 04:32:39,457 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-11-17 04:32:39,457 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-11-17 04:32:39,457 INFO L130 BoogieDeclarations]: Found specification of procedure tb_path_deactivate [2021-11-17 04:32:39,457 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_path_deactivate [2021-11-17 04:32:39,457 INFO L130 BoogieDeclarations]: Found specification of procedure tb_eeprom_ctl_write [2021-11-17 04:32:39,457 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_eeprom_ctl_write [2021-11-17 04:32:39,457 INFO L130 BoogieDeclarations]: Found specification of procedure kcalloc [2021-11-17 04:32:39,457 INFO L138 BoogieDeclarations]: Found implementation of procedure kcalloc [2021-11-17 04:32:39,458 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-17 04:32:39,458 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-17 04:32:39,458 INFO L130 BoogieDeclarations]: Found specification of procedure tb_ctl_pkg_alloc [2021-11-17 04:32:39,458 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_ctl_pkg_alloc [2021-11-17 04:32:39,458 INFO L130 BoogieDeclarations]: Found specification of procedure nhi_suspend_noirq [2021-11-17 04:32:39,458 INFO L138 BoogieDeclarations]: Found implementation of procedure nhi_suspend_noirq [2021-11-17 04:32:39,458 INFO L130 BoogieDeclarations]: Found specification of procedure tb_eeprom_ctl_read [2021-11-17 04:32:39,458 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_eeprom_ctl_read [2021-11-17 04:32:39,458 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2021-11-17 04:32:39,458 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2021-11-17 04:32:39,458 INFO L130 BoogieDeclarations]: Found specification of procedure tb_pci_port_active [2021-11-17 04:32:39,459 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_pci_port_active [2021-11-17 04:32:39,459 INFO L130 BoogieDeclarations]: Found specification of procedure tb_switch_suspend [2021-11-17 04:32:39,459 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_switch_suspend [2021-11-17 04:32:39,459 INFO L130 BoogieDeclarations]: Found specification of procedure tb_path_alloc [2021-11-17 04:32:39,459 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_path_alloc [2021-11-17 04:32:39,459 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2021-11-17 04:32:39,459 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2021-11-17 04:32:39,459 INFO L130 BoogieDeclarations]: Found specification of procedure tb_drom_read_uid_only [2021-11-17 04:32:39,459 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_drom_read_uid_only [2021-11-17 04:32:39,459 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-17 04:32:39,460 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-11-17 04:32:39,460 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-11-17 04:32:39,460 INFO L130 BoogieDeclarations]: Found specification of procedure tb_port_write [2021-11-17 04:32:39,460 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_port_write [2021-11-17 04:32:39,460 INFO L130 BoogieDeclarations]: Found specification of procedure tb_path_activate [2021-11-17 04:32:39,460 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_path_activate [2021-11-17 04:32:39,460 INFO L130 BoogieDeclarations]: Found specification of procedure nhi_interrupt_work [2021-11-17 04:32:39,460 INFO L138 BoogieDeclarations]: Found implementation of procedure nhi_interrupt_work [2021-11-17 04:32:39,460 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-17 04:32:39,460 INFO L130 BoogieDeclarations]: Found specification of procedure __list_del_entry [2021-11-17 04:32:39,460 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_del_entry [2021-11-17 04:32:39,461 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_work_1 [2021-11-17 04:32:39,461 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_work_1 [2021-11-17 04:32:39,461 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-17 04:32:39,461 INFO L130 BoogieDeclarations]: Found specification of procedure ring_iowrite32desc [2021-11-17 04:32:39,461 INFO L138 BoogieDeclarations]: Found implementation of procedure ring_iowrite32desc [2021-11-17 04:32:39,461 INFO L130 BoogieDeclarations]: Found specification of procedure tb_route_length [2021-11-17 04:32:39,461 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_route_length [2021-11-17 04:32:39,461 INFO L130 BoogieDeclarations]: Found specification of procedure nhi_resume_noirq [2021-11-17 04:32:39,461 INFO L138 BoogieDeclarations]: Found implementation of procedure nhi_resume_noirq [2021-11-17 04:32:39,461 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2021-11-17 04:32:39,462 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2021-11-17 04:32:39,462 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2021-11-17 04:32:39,462 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2021-11-17 04:32:39,462 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work_on [2021-11-17 04:32:39,462 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work_on [2021-11-17 04:32:39,462 INFO L130 BoogieDeclarations]: Found specification of procedure tb_switch_alloc [2021-11-17 04:32:39,462 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_switch_alloc [2021-11-17 04:32:39,462 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2021-11-17 04:32:39,462 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2021-11-17 04:32:39,462 INFO L130 BoogieDeclarations]: Found specification of procedure ring_free [2021-11-17 04:32:39,462 INFO L138 BoogieDeclarations]: Found implementation of procedure ring_free [2021-11-17 04:32:39,463 INFO L130 BoogieDeclarations]: Found specification of procedure flush_workqueue [2021-11-17 04:32:39,463 INFO L138 BoogieDeclarations]: Found implementation of procedure flush_workqueue [2021-11-17 04:32:39,463 INFO L130 BoogieDeclarations]: Found specification of procedure ring_iowrite64desc [2021-11-17 04:32:39,463 INFO L138 BoogieDeclarations]: Found implementation of procedure ring_iowrite64desc [2021-11-17 04:32:39,463 INFO L130 BoogieDeclarations]: Found specification of procedure __tb_path_deallocate_nfc [2021-11-17 04:32:39,463 INFO L138 BoogieDeclarations]: Found implementation of procedure __tb_path_deallocate_nfc [2021-11-17 04:32:39,463 INFO L130 BoogieDeclarations]: Found specification of procedure tb_free_unplugged_children [2021-11-17 04:32:39,463 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_free_unplugged_children [2021-11-17 04:32:39,463 INFO L130 BoogieDeclarations]: Found specification of procedure tb_crc [2021-11-17 04:32:39,463 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_crc [2021-11-17 04:32:39,464 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2021-11-17 04:32:39,464 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2021-11-17 04:32:39,464 INFO L130 BoogieDeclarations]: Found specification of procedure tb_switch_resume [2021-11-17 04:32:39,464 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_switch_resume [2021-11-17 04:32:39,464 INFO L130 BoogieDeclarations]: Found specification of procedure tb_wait_for_port [2021-11-17 04:32:39,464 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_wait_for_port [2021-11-17 04:32:39,464 INFO L130 BoogieDeclarations]: Found specification of procedure tb_scan_switch [2021-11-17 04:32:39,464 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_scan_switch [2021-11-17 04:32:39,464 INFO L130 BoogieDeclarations]: Found specification of procedure tb_pci_restart [2021-11-17 04:32:39,464 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_pci_restart [2021-11-17 04:32:39,464 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-17 04:32:39,465 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-17 04:32:39,465 INFO L130 BoogieDeclarations]: Found specification of procedure check_config_address [2021-11-17 04:32:39,465 INFO L138 BoogieDeclarations]: Found implementation of procedure check_config_address [2021-11-17 04:32:39,465 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-17 04:32:39,465 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-17 04:32:39,465 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-17 04:32:39,465 INFO L130 BoogieDeclarations]: Found specification of procedure __crc32c_le [2021-11-17 04:32:39,465 INFO L138 BoogieDeclarations]: Found implementation of procedure __crc32c_le [2021-11-17 04:32:39,465 INFO L130 BoogieDeclarations]: Found specification of procedure devm_kcalloc [2021-11-17 04:32:39,465 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_kcalloc [2021-11-17 04:32:39,466 INFO L130 BoogieDeclarations]: Found specification of procedure tb_ctl_free [2021-11-17 04:32:39,466 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_ctl_free [2021-11-17 04:32:39,466 INFO L130 BoogieDeclarations]: Found specification of procedure tb_path_is_invalid [2021-11-17 04:32:39,466 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_path_is_invalid [2021-11-17 04:32:39,466 INFO L130 BoogieDeclarations]: Found specification of procedure dev_driver_string [2021-11-17 04:32:39,469 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_driver_string [2021-11-17 04:32:39,515 INFO L130 BoogieDeclarations]: Found specification of procedure tb_eeprom_transfer [2021-11-17 04:32:39,516 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_eeprom_transfer [2021-11-17 04:32:39,516 INFO L130 BoogieDeclarations]: Found specification of procedure tb_pci_init_path [2021-11-17 04:32:39,516 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_pci_init_path [2021-11-17 04:32:39,516 INFO L130 BoogieDeclarations]: Found specification of procedure __tb_path_deactivate_hops [2021-11-17 04:32:39,516 INFO L138 BoogieDeclarations]: Found implementation of procedure __tb_path_deactivate_hops [2021-11-17 04:32:39,516 INFO L130 BoogieDeclarations]: Found specification of procedure tb_pci_free [2021-11-17 04:32:39,516 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_pci_free [2021-11-17 04:32:39,516 INFO L130 BoogieDeclarations]: Found specification of procedure tb_is_upstream_port [2021-11-17 04:32:39,516 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_is_upstream_port [2021-11-17 04:32:39,516 INFO L130 BoogieDeclarations]: Found specification of procedure ring_alloc [2021-11-17 04:32:39,516 INFO L138 BoogieDeclarations]: Found implementation of procedure ring_alloc [2021-11-17 04:32:39,516 INFO L130 BoogieDeclarations]: Found specification of procedure make_header [2021-11-17 04:32:39,516 INFO L138 BoogieDeclarations]: Found implementation of procedure make_header [2021-11-17 04:32:39,516 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2021-11-17 04:32:39,516 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2021-11-17 04:32:39,516 INFO L130 BoogieDeclarations]: Found specification of procedure tb_free_invalid_tunnels [2021-11-17 04:32:39,516 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_free_invalid_tunnels [2021-11-17 04:32:39,516 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_all_1 [2021-11-17 04:32:39,516 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_all_1 [2021-11-17 04:32:39,516 INFO L130 BoogieDeclarations]: Found specification of procedure tb_port_read [2021-11-17 04:32:39,516 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_port_read [2021-11-17 04:32:39,516 INFO L130 BoogieDeclarations]: Found specification of procedure tb_pci_deactivate [2021-11-17 04:32:39,516 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_pci_deactivate [2021-11-17 04:32:39,516 INFO L130 BoogieDeclarations]: Found specification of procedure tb_eeprom_out [2021-11-17 04:32:39,516 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_eeprom_out [2021-11-17 04:32:39,517 INFO L130 BoogieDeclarations]: Found specification of procedure tb_sw_write [2021-11-17 04:32:39,517 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_sw_write [2021-11-17 04:32:39,517 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_lock_of_tb_nhi [2021-11-17 04:32:39,517 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_lock_of_tb_nhi [2021-11-17 04:32:39,517 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-17 04:32:39,517 INFO L130 BoogieDeclarations]: Found specification of procedure tb_route [2021-11-17 04:32:39,517 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_route [2021-11-17 04:32:39,517 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock_of_tb_nhi [2021-11-17 04:32:39,517 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock_of_tb_nhi [2021-11-17 04:32:40,301 INFO L236 CfgBuilder]: Building ICFG [2021-11-17 04:32:40,303 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-17 04:32:40,623 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-17 04:32:56,873 INFO L277 CfgBuilder]: Performing block encoding [2021-11-17 04:32:56,896 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-17 04:32:56,897 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-17 04:32:56,900 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.11 04:32:56 BoogieIcfgContainer [2021-11-17 04:32:56,900 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-17 04:32:56,902 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-17 04:32:56,902 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-17 04:32:56,905 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-17 04:32:56,905 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.11 04:32:36" (1/3) ... [2021-11-17 04:32:56,906 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@695f11a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 04:32:56, skipping insertion in model container [2021-11-17 04:32:56,906 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 04:32:38" (2/3) ... [2021-11-17 04:32:56,906 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@695f11a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 04:32:56, skipping insertion in model container [2021-11-17 04:32:56,907 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.11 04:32:56" (3/3) ... [2021-11-17 04:32:56,908 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--thunderbolt--thunderbolt.ko-entry_point.cil.out.i [2021-11-17 04:32:56,914 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-17 04:32:56,914 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-17 04:32:56,963 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-17 04:32:56,969 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-17 04:32:56,970 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-17 04:32:57,028 INFO L276 IsEmpty]: Start isEmpty. Operand has 2542 states, 1707 states have (on average 1.328646748681898) internal successors, (2268), 1754 states have internal predecessors, (2268), 701 states have call successors, (701), 133 states have call predecessors, (701), 132 states have return successors, (695), 691 states have call predecessors, (695), 695 states have call successors, (695) [2021-11-17 04:32:57,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-11-17 04:32:57,033 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 04:32:57,033 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 04:32:57,037 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 04:32:57,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 04:32:57,041 INFO L85 PathProgramCache]: Analyzing trace with hash -1765604170, now seen corresponding path program 1 times [2021-11-17 04:32:57,060 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 04:32:57,061 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [960057353] [2021-11-17 04:32:57,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 04:32:57,062 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 04:32:57,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:32:57,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 04:32:57,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:32:57,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:32:57,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:32:57,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:32:57,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:32:57,524 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-17 04:32:57,524 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 04:32:57,525 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [960057353] [2021-11-17 04:32:57,526 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [960057353] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 04:32:57,528 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 04:32:57,528 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-17 04:32:57,529 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1918239156] [2021-11-17 04:32:57,530 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 04:32:57,534 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-17 04:32:57,534 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 04:32:57,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-17 04:32:57,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-17 04:32:57,564 INFO L87 Difference]: Start difference. First operand has 2542 states, 1707 states have (on average 1.328646748681898) internal successors, (2268), 1754 states have internal predecessors, (2268), 701 states have call successors, (701), 133 states have call predecessors, (701), 132 states have return successors, (695), 691 states have call predecessors, (695), 695 states have call successors, (695) Second operand has 4 states, 4 states have (on average 6.5) internal successors, (26), 2 states have internal predecessors, (26), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2021-11-17 04:32:59,616 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 04:33:01,694 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 04:33:05,145 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 04:33:07,251 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 04:33:10,575 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 04:33:20,246 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 04:33:25,439 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 04:33:26,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 04:33:26,031 INFO L93 Difference]: Finished difference Result 5694 states and 8677 transitions. [2021-11-17 04:33:26,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-17 04:33:26,033 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 2 states have internal predecessors, (26), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 35 [2021-11-17 04:33:26,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 04:33:26,097 INFO L225 Difference]: With dead ends: 5694 [2021-11-17 04:33:26,099 INFO L226 Difference]: Without dead ends: 3144 [2021-11-17 04:33:26,120 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-17 04:33:26,122 INFO L933 BasicCegarLoop]: 3381 mSDtfsCounter, 1110 mSDsluCounter, 2885 mSDsCounter, 0 mSdLazyCounter, 2305 mSolverCounterSat, 989 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 26.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1426 SdHoareTripleChecker+Valid, 6266 SdHoareTripleChecker+Invalid, 3300 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 989 IncrementalHoareTripleChecker+Valid, 2305 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 28.0s IncrementalHoareTripleChecker+Time [2021-11-17 04:33:26,123 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1426 Valid, 6266 Invalid, 3300 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [989 Valid, 2305 Invalid, 6 Unknown, 0 Unchecked, 28.0s Time] [2021-11-17 04:33:26,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3144 states. [2021-11-17 04:33:26,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3144 to 2529. [2021-11-17 04:33:26,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2529 states, 1702 states have (on average 1.3243243243243243) internal successors, (2254), 1741 states have internal predecessors, (2254), 695 states have call successors, (695), 132 states have call predecessors, (695), 131 states have return successors, (684), 680 states have call predecessors, (684), 684 states have call successors, (684) [2021-11-17 04:33:26,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2529 states to 2529 states and 3633 transitions. [2021-11-17 04:33:26,304 INFO L78 Accepts]: Start accepts. Automaton has 2529 states and 3633 transitions. Word has length 35 [2021-11-17 04:33:26,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 04:33:26,305 INFO L470 AbstractCegarLoop]: Abstraction has 2529 states and 3633 transitions. [2021-11-17 04:33:26,305 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 2 states have internal predecessors, (26), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2021-11-17 04:33:26,305 INFO L276 IsEmpty]: Start isEmpty. Operand 2529 states and 3633 transitions. [2021-11-17 04:33:26,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-11-17 04:33:26,308 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 04:33:26,308 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 04:33:26,308 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-17 04:33:26,309 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 04:33:26,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 04:33:26,309 INFO L85 PathProgramCache]: Analyzing trace with hash -1899617676, now seen corresponding path program 1 times [2021-11-17 04:33:26,309 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 04:33:26,310 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [338425425] [2021-11-17 04:33:26,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 04:33:26,310 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 04:33:26,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:33:26,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 04:33:26,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:33:26,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:33:26,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:33:26,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:33:26,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:33:26,611 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-17 04:33:26,612 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 04:33:26,612 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [338425425] [2021-11-17 04:33:26,612 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [338425425] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 04:33:26,612 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 04:33:26,612 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-17 04:33:26,612 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [249435639] [2021-11-17 04:33:26,612 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 04:33:26,613 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-17 04:33:26,613 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 04:33:26,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-17 04:33:26,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-17 04:33:26,614 INFO L87 Difference]: Start difference. First operand 2529 states and 3633 transitions. Second operand has 5 states, 5 states have (on average 5.2) internal successors, (26), 3 states have internal predecessors, (26), 3 states have call successors, (6), 5 states have call predecessors, (6), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-11-17 04:33:28,569 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.95s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 04:33:32,184 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 04:33:42,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 04:33:42,461 INFO L93 Difference]: Finished difference Result 3197 states and 4706 transitions. [2021-11-17 04:33:42,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-17 04:33:42,461 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 3 states have internal predecessors, (26), 3 states have call successors, (6), 5 states have call predecessors, (6), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 35 [2021-11-17 04:33:42,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 04:33:42,478 INFO L225 Difference]: With dead ends: 3197 [2021-11-17 04:33:42,478 INFO L226 Difference]: Without dead ends: 3193 [2021-11-17 04:33:42,480 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-11-17 04:33:42,480 INFO L933 BasicCegarLoop]: 3376 mSDtfsCounter, 4907 mSDsluCounter, 1856 mSDsCounter, 0 mSdLazyCounter, 1733 mSolverCounterSat, 3110 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5250 SdHoareTripleChecker+Valid, 5232 SdHoareTripleChecker+Invalid, 4844 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3110 IncrementalHoareTripleChecker+Valid, 1733 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.5s IncrementalHoareTripleChecker+Time [2021-11-17 04:33:42,481 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5250 Valid, 5232 Invalid, 4844 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3110 Valid, 1733 Invalid, 1 Unknown, 0 Unchecked, 15.5s Time] [2021-11-17 04:33:42,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3193 states. [2021-11-17 04:33:42,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3193 to 2571. [2021-11-17 04:33:42,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2571 states, 1732 states have (on average 1.3187066974595842) internal successors, (2284), 1769 states have internal predecessors, (2284), 695 states have call successors, (695), 144 states have call predecessors, (695), 143 states have return successors, (686), 682 states have call predecessors, (686), 686 states have call successors, (686) [2021-11-17 04:33:42,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2571 states to 2571 states and 3665 transitions. [2021-11-17 04:33:42,603 INFO L78 Accepts]: Start accepts. Automaton has 2571 states and 3665 transitions. Word has length 35 [2021-11-17 04:33:42,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 04:33:42,604 INFO L470 AbstractCegarLoop]: Abstraction has 2571 states and 3665 transitions. [2021-11-17 04:33:42,604 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 3 states have internal predecessors, (26), 3 states have call successors, (6), 5 states have call predecessors, (6), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-11-17 04:33:42,604 INFO L276 IsEmpty]: Start isEmpty. Operand 2571 states and 3665 transitions. [2021-11-17 04:33:42,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-11-17 04:33:42,609 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 04:33:42,610 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 04:33:42,610 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-17 04:33:42,611 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 04:33:42,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 04:33:42,611 INFO L85 PathProgramCache]: Analyzing trace with hash 98713607, now seen corresponding path program 1 times [2021-11-17 04:33:42,612 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 04:33:42,612 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [167789331] [2021-11-17 04:33:42,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 04:33:42,613 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 04:33:42,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:33:42,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 04:33:42,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:33:42,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:33:42,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:33:42,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:33:42,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:33:42,783 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-17 04:33:42,784 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 04:33:42,784 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [167789331] [2021-11-17 04:33:42,784 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [167789331] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 04:33:42,784 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 04:33:42,784 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-17 04:33:42,784 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [459024253] [2021-11-17 04:33:42,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 04:33:42,785 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-17 04:33:42,785 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 04:33:42,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-17 04:33:42,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-17 04:33:42,837 INFO L87 Difference]: Start difference. First operand 2571 states and 3665 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (4), 4 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-11-17 04:33:43,879 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 04:33:48,778 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 04:33:51,118 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 04:34:03,925 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 04:34:05,783 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 04:34:15,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 04:34:15,282 INFO L93 Difference]: Finished difference Result 8911 states and 13013 transitions. [2021-11-17 04:34:15,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-17 04:34:15,283 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (4), 4 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 36 [2021-11-17 04:34:15,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 04:34:15,352 INFO L225 Difference]: With dead ends: 8911 [2021-11-17 04:34:15,353 INFO L226 Difference]: Without dead ends: 6348 [2021-11-17 04:34:15,380 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-11-17 04:34:15,381 INFO L933 BasicCegarLoop]: 3831 mSDtfsCounter, 6929 mSDsluCounter, 4780 mSDsCounter, 0 mSdLazyCounter, 3508 mSolverCounterSat, 5269 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 29.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7594 SdHoareTripleChecker+Valid, 8611 SdHoareTripleChecker+Invalid, 8779 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5269 IncrementalHoareTripleChecker+Valid, 3508 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 31.7s IncrementalHoareTripleChecker+Time [2021-11-17 04:34:15,381 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7594 Valid, 8611 Invalid, 8779 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5269 Valid, 3508 Invalid, 2 Unknown, 0 Unchecked, 31.7s Time] [2021-11-17 04:34:15,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6348 states. [2021-11-17 04:34:15,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6348 to 5101. [2021-11-17 04:34:15,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5101 states, 3436 states have (on average 1.3186845168800931) internal successors, (4531), 3502 states have internal predecessors, (4531), 1378 states have call successors, (1378), 287 states have call predecessors, (1378), 286 states have return successors, (1369), 1361 states have call predecessors, (1369), 1369 states have call successors, (1369) [2021-11-17 04:34:15,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5101 states to 5101 states and 7278 transitions. [2021-11-17 04:34:15,582 INFO L78 Accepts]: Start accepts. Automaton has 5101 states and 7278 transitions. Word has length 36 [2021-11-17 04:34:15,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 04:34:15,582 INFO L470 AbstractCegarLoop]: Abstraction has 5101 states and 7278 transitions. [2021-11-17 04:34:15,582 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (4), 4 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-11-17 04:34:15,583 INFO L276 IsEmpty]: Start isEmpty. Operand 5101 states and 7278 transitions. [2021-11-17 04:34:15,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-11-17 04:34:15,585 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 04:34:15,585 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 04:34:15,585 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-17 04:34:15,585 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 04:34:15,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 04:34:15,586 INFO L85 PathProgramCache]: Analyzing trace with hash -1619670549, now seen corresponding path program 1 times [2021-11-17 04:34:15,586 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 04:34:15,586 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1654401767] [2021-11-17 04:34:15,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 04:34:15,586 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 04:34:15,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:34:15,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 04:34:15,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:34:15,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:34:15,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:34:15,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:34:15,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:34:15,816 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-17 04:34:15,816 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 04:34:15,817 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1654401767] [2021-11-17 04:34:15,817 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1654401767] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 04:34:15,817 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 04:34:15,817 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-17 04:34:15,817 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1115744835] [2021-11-17 04:34:15,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 04:34:15,818 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-17 04:34:15,818 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 04:34:15,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-17 04:34:15,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-17 04:34:15,818 INFO L87 Difference]: Start difference. First operand 5101 states and 7278 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 3 states have internal predecessors, (29), 3 states have call successors, (6), 5 states have call predecessors, (6), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-11-17 04:34:19,549 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 04:34:32,238 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 04:34:33,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 04:34:33,755 INFO L93 Difference]: Finished difference Result 6646 states and 9627 transitions. [2021-11-17 04:34:33,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-17 04:34:33,755 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 3 states have internal predecessors, (29), 3 states have call successors, (6), 5 states have call predecessors, (6), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 38 [2021-11-17 04:34:33,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 04:34:33,783 INFO L225 Difference]: With dead ends: 6646 [2021-11-17 04:34:33,784 INFO L226 Difference]: Without dead ends: 6642 [2021-11-17 04:34:33,789 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-11-17 04:34:33,791 INFO L933 BasicCegarLoop]: 3362 mSDtfsCounter, 4967 mSDsluCounter, 1895 mSDsCounter, 0 mSdLazyCounter, 1863 mSolverCounterSat, 2997 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5371 SdHoareTripleChecker+Valid, 5257 SdHoareTripleChecker+Invalid, 4861 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2997 IncrementalHoareTripleChecker+Valid, 1863 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.5s IncrementalHoareTripleChecker+Time [2021-11-17 04:34:33,793 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5371 Valid, 5257 Invalid, 4861 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2997 Valid, 1863 Invalid, 1 Unknown, 0 Unchecked, 17.5s Time] [2021-11-17 04:34:33,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6642 states. [2021-11-17 04:34:33,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6642 to 5361. [2021-11-17 04:34:33,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5361 states, 3618 states have (on average 1.3073521282476506) internal successors, (4730), 3682 states have internal predecessors, (4730), 1396 states have call successors, (1396), 347 states have call predecessors, (1396), 346 states have return successors, (1389), 1381 states have call predecessors, (1389), 1389 states have call successors, (1389) [2021-11-17 04:34:33,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5361 states to 5361 states and 7515 transitions. [2021-11-17 04:34:34,000 INFO L78 Accepts]: Start accepts. Automaton has 5361 states and 7515 transitions. Word has length 38 [2021-11-17 04:34:34,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 04:34:34,000 INFO L470 AbstractCegarLoop]: Abstraction has 5361 states and 7515 transitions. [2021-11-17 04:34:34,001 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 3 states have internal predecessors, (29), 3 states have call successors, (6), 5 states have call predecessors, (6), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-11-17 04:34:34,001 INFO L276 IsEmpty]: Start isEmpty. Operand 5361 states and 7515 transitions. [2021-11-17 04:34:34,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-11-17 04:34:34,003 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 04:34:34,003 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 04:34:34,003 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-17 04:34:34,003 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 04:34:34,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 04:34:34,004 INFO L85 PathProgramCache]: Analyzing trace with hash -1163074537, now seen corresponding path program 1 times [2021-11-17 04:34:34,004 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 04:34:34,004 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [60118326] [2021-11-17 04:34:34,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 04:34:34,004 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 04:34:34,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:34:34,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 04:34:34,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:34:34,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:34:34,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:34:34,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:34:34,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:34:34,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-11-17 04:34:34,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:34:34,183 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-17 04:34:34,183 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 04:34:34,183 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [60118326] [2021-11-17 04:34:34,183 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [60118326] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 04:34:34,184 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 04:34:34,184 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-17 04:34:34,184 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1783884732] [2021-11-17 04:34:34,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 04:34:34,184 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-17 04:34:34,184 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 04:34:34,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-17 04:34:34,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-17 04:34:34,185 INFO L87 Difference]: Start difference. First operand 5361 states and 7515 transitions. Second operand has 5 states, 5 states have (on average 6.0) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (7), 4 states have call predecessors, (7), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-11-17 04:34:38,217 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 04:34:41,980 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 04:34:44,073 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 04:34:46,183 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 04:34:48,275 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 04:34:51,931 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 04:35:08,355 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 04:35:09,426 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 04:35:19,646 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 04:35:27,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 04:35:27,676 INFO L93 Difference]: Finished difference Result 16693 states and 23824 transitions. [2021-11-17 04:35:27,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-17 04:35:27,677 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (7), 4 states have call predecessors, (7), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 41 [2021-11-17 04:35:27,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 04:35:27,742 INFO L225 Difference]: With dead ends: 16693 [2021-11-17 04:35:27,742 INFO L226 Difference]: Without dead ends: 11340 [2021-11-17 04:35:27,762 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-11-17 04:35:27,762 INFO L933 BasicCegarLoop]: 4598 mSDtfsCounter, 3780 mSDsluCounter, 6779 mSDsCounter, 0 mSdLazyCounter, 4544 mSolverCounterSat, 2264 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 50.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4300 SdHoareTripleChecker+Valid, 11377 SdHoareTripleChecker+Invalid, 6814 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2264 IncrementalHoareTripleChecker+Valid, 4544 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 52.7s IncrementalHoareTripleChecker+Time [2021-11-17 04:35:27,763 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4300 Valid, 11377 Invalid, 6814 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2264 Valid, 4544 Invalid, 6 Unknown, 0 Unchecked, 52.7s Time] [2021-11-17 04:35:27,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11340 states. [2021-11-17 04:35:28,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11340 to 9157. [2021-11-17 04:35:28,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9157 states, 6181 states have (on average 1.3067464811519172) internal successors, (8077), 6287 states have internal predecessors, (8077), 2359 states have call successors, (2359), 617 states have call predecessors, (2359), 616 states have return successors, (2352), 2336 states have call predecessors, (2352), 2352 states have call successors, (2352) [2021-11-17 04:35:28,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9157 states to 9157 states and 12788 transitions. [2021-11-17 04:35:28,096 INFO L78 Accepts]: Start accepts. Automaton has 9157 states and 12788 transitions. Word has length 41 [2021-11-17 04:35:28,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 04:35:28,097 INFO L470 AbstractCegarLoop]: Abstraction has 9157 states and 12788 transitions. [2021-11-17 04:35:28,097 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (7), 4 states have call predecessors, (7), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-11-17 04:35:28,097 INFO L276 IsEmpty]: Start isEmpty. Operand 9157 states and 12788 transitions. [2021-11-17 04:35:28,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-11-17 04:35:28,098 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 04:35:28,098 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 04:35:28,098 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-17 04:35:28,098 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 04:35:28,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 04:35:28,098 INFO L85 PathProgramCache]: Analyzing trace with hash 993998376, now seen corresponding path program 1 times [2021-11-17 04:35:28,099 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 04:35:28,099 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [38755300] [2021-11-17 04:35:28,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 04:35:28,099 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 04:35:28,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:35:28,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 04:35:28,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:35:28,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:35:28,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:35:28,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:35:28,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:35:28,266 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-17 04:35:28,266 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 04:35:28,266 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [38755300] [2021-11-17 04:35:28,266 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [38755300] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 04:35:28,266 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 04:35:28,266 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-17 04:35:28,267 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [508680461] [2021-11-17 04:35:28,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 04:35:28,267 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-17 04:35:28,267 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 04:35:28,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-17 04:35:28,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-17 04:35:28,268 INFO L87 Difference]: Start difference. First operand 9157 states and 12788 transitions. Second operand has 5 states, 5 states have (on average 6.6) internal successors, (33), 3 states have internal predecessors, (33), 3 states have call successors, (4), 4 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-11-17 04:35:30,284 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 04:35:33,703 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 04:35:35,714 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 04:35:41,020 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 04:35:47,019 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 04:35:48,084 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 04:35:49,200 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 04:35:57,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 04:35:57,281 INFO L93 Difference]: Finished difference Result 11325 states and 16299 transitions. [2021-11-17 04:35:57,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-17 04:35:57,282 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 3 states have internal predecessors, (33), 3 states have call successors, (4), 4 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 40 [2021-11-17 04:35:57,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 04:35:57,342 INFO L225 Difference]: With dead ends: 11325 [2021-11-17 04:35:57,342 INFO L226 Difference]: Without dead ends: 11322 [2021-11-17 04:35:57,348 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-11-17 04:35:57,349 INFO L933 BasicCegarLoop]: 3339 mSDtfsCounter, 4348 mSDsluCounter, 2851 mSDsCounter, 0 mSdLazyCounter, 2350 mSolverCounterSat, 2167 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 27.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4696 SdHoareTripleChecker+Valid, 6190 SdHoareTripleChecker+Invalid, 4520 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2167 IncrementalHoareTripleChecker+Valid, 2350 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 28.5s IncrementalHoareTripleChecker+Time [2021-11-17 04:35:57,349 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4696 Valid, 6190 Invalid, 4520 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2167 Valid, 2350 Invalid, 3 Unknown, 0 Unchecked, 28.5s Time] [2021-11-17 04:35:57,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11322 states. [2021-11-17 04:35:57,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11322 to 9156. [2021-11-17 04:35:57,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9156 states, 6181 states have (on average 1.306584695033166) internal successors, (8076), 6286 states have internal predecessors, (8076), 2358 states have call successors, (2358), 617 states have call predecessors, (2358), 616 states have return successors, (2352), 2336 states have call predecessors, (2352), 2352 states have call successors, (2352) [2021-11-17 04:35:57,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9156 states to 9156 states and 12786 transitions. [2021-11-17 04:35:57,740 INFO L78 Accepts]: Start accepts. Automaton has 9156 states and 12786 transitions. Word has length 40 [2021-11-17 04:35:57,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 04:35:57,741 INFO L470 AbstractCegarLoop]: Abstraction has 9156 states and 12786 transitions. [2021-11-17 04:35:57,741 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 3 states have internal predecessors, (33), 3 states have call successors, (4), 4 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-11-17 04:35:57,741 INFO L276 IsEmpty]: Start isEmpty. Operand 9156 states and 12786 transitions. [2021-11-17 04:35:57,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-11-17 04:35:57,743 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 04:35:57,743 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 04:35:57,743 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-17 04:35:57,744 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 04:35:57,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 04:35:57,744 INFO L85 PathProgramCache]: Analyzing trace with hash 747995506, now seen corresponding path program 1 times [2021-11-17 04:35:57,744 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 04:35:57,744 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1751021847] [2021-11-17 04:35:57,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 04:35:57,745 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 04:35:57,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:35:57,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 04:35:57,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:35:57,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:35:57,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:35:57,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:35:57,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:35:57,937 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-17 04:35:57,937 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 04:35:57,937 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1751021847] [2021-11-17 04:35:57,937 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1751021847] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 04:35:57,937 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 04:35:57,937 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-17 04:35:57,937 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [821523917] [2021-11-17 04:35:57,938 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 04:35:57,938 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-17 04:35:57,938 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 04:35:57,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-17 04:35:57,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-17 04:35:57,939 INFO L87 Difference]: Start difference. First operand 9156 states and 12786 transitions. Second operand has 5 states, 5 states have (on average 6.8) internal successors, (34), 3 states have internal predecessors, (34), 3 states have call successors, (4), 4 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-11-17 04:36:01,679 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 04:36:12,686 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 04:36:19,335 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 04:36:21,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 04:36:21,076 INFO L93 Difference]: Finished difference Result 13418 states and 18926 transitions. [2021-11-17 04:36:21,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-17 04:36:21,077 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.8) internal successors, (34), 3 states have internal predecessors, (34), 3 states have call successors, (4), 4 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 41 [2021-11-17 04:36:21,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 04:36:21,123 INFO L225 Difference]: With dead ends: 13418 [2021-11-17 04:36:21,123 INFO L226 Difference]: Without dead ends: 13414 [2021-11-17 04:36:21,132 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-11-17 04:36:21,133 INFO L933 BasicCegarLoop]: 3509 mSDtfsCounter, 3178 mSDsluCounter, 4218 mSDsCounter, 0 mSdLazyCounter, 2469 mSolverCounterSat, 2536 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3546 SdHoareTripleChecker+Valid, 7727 SdHoareTripleChecker+Invalid, 5006 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2536 IncrementalHoareTripleChecker+Valid, 2469 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.5s IncrementalHoareTripleChecker+Time [2021-11-17 04:36:21,133 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3546 Valid, 7727 Invalid, 5006 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2536 Valid, 2469 Invalid, 1 Unknown, 0 Unchecked, 22.5s Time] [2021-11-17 04:36:21,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13414 states. [2021-11-17 04:36:21,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13414 to 10988. [2021-11-17 04:36:21,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10988 states, 7397 states have (on average 1.2922806543193186) internal successors, (9559), 7532 states have internal predecessors, (9559), 2760 states have call successors, (2760), 831 states have call predecessors, (2760), 830 states have return successors, (2756), 2740 states have call predecessors, (2756), 2756 states have call successors, (2756) [2021-11-17 04:36:21,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10988 states to 10988 states and 15075 transitions. [2021-11-17 04:36:21,596 INFO L78 Accepts]: Start accepts. Automaton has 10988 states and 15075 transitions. Word has length 41 [2021-11-17 04:36:21,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 04:36:21,597 INFO L470 AbstractCegarLoop]: Abstraction has 10988 states and 15075 transitions. [2021-11-17 04:36:21,597 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.8) internal successors, (34), 3 states have internal predecessors, (34), 3 states have call successors, (4), 4 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-11-17 04:36:21,597 INFO L276 IsEmpty]: Start isEmpty. Operand 10988 states and 15075 transitions. [2021-11-17 04:36:21,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-11-17 04:36:21,598 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 04:36:21,598 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 04:36:21,599 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-17 04:36:21,599 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 04:36:21,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 04:36:21,599 INFO L85 PathProgramCache]: Analyzing trace with hash 73984686, now seen corresponding path program 1 times [2021-11-17 04:36:21,599 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 04:36:21,599 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [505738567] [2021-11-17 04:36:21,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 04:36:21,600 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 04:36:21,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:36:21,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 04:36:21,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:36:21,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:36:21,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:36:21,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:36:21,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:36:21,792 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-17 04:36:21,792 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 04:36:21,792 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [505738567] [2021-11-17 04:36:21,792 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [505738567] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 04:36:21,793 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 04:36:21,793 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-17 04:36:21,793 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1161220307] [2021-11-17 04:36:21,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 04:36:21,793 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-17 04:36:21,793 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 04:36:21,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-17 04:36:21,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-17 04:36:21,794 INFO L87 Difference]: Start difference. First operand 10988 states and 15075 transitions. Second operand has 5 states, 5 states have (on average 7.4) internal successors, (37), 3 states have internal predecessors, (37), 3 states have call successors, (4), 4 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-11-17 04:36:24,809 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 04:36:31,794 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 04:36:32,908 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 04:36:37,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 04:36:37,641 INFO L93 Difference]: Finished difference Result 13412 states and 18916 transitions. [2021-11-17 04:36:37,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-17 04:36:37,641 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 3 states have internal predecessors, (37), 3 states have call successors, (4), 4 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 44 [2021-11-17 04:36:37,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 04:36:37,676 INFO L225 Difference]: With dead ends: 13412 [2021-11-17 04:36:37,676 INFO L226 Difference]: Without dead ends: 13400 [2021-11-17 04:36:37,682 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-11-17 04:36:37,682 INFO L933 BasicCegarLoop]: 3323 mSDtfsCounter, 5070 mSDsluCounter, 1687 mSDsCounter, 0 mSdLazyCounter, 1569 mSolverCounterSat, 3217 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5421 SdHoareTripleChecker+Valid, 5010 SdHoareTripleChecker+Invalid, 4787 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3217 IncrementalHoareTripleChecker+Valid, 1569 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.3s IncrementalHoareTripleChecker+Time [2021-11-17 04:36:37,683 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5421 Valid, 5010 Invalid, 4787 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3217 Valid, 1569 Invalid, 1 Unknown, 0 Unchecked, 15.3s Time] [2021-11-17 04:36:37,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13400 states. [2021-11-17 04:36:38,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13400 to 10978. [2021-11-17 04:36:38,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10978 states, 7388 states have (on average 1.2918245804006496) internal successors, (9544), 7522 states have internal predecessors, (9544), 2759 states have call successors, (2759), 831 states have call predecessors, (2759), 830 states have return successors, (2756), 2740 states have call predecessors, (2756), 2756 states have call successors, (2756) [2021-11-17 04:36:38,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10978 states to 10978 states and 15059 transitions. [2021-11-17 04:36:38,101 INFO L78 Accepts]: Start accepts. Automaton has 10978 states and 15059 transitions. Word has length 44 [2021-11-17 04:36:38,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 04:36:38,102 INFO L470 AbstractCegarLoop]: Abstraction has 10978 states and 15059 transitions. [2021-11-17 04:36:38,102 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 3 states have internal predecessors, (37), 3 states have call successors, (4), 4 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-11-17 04:36:38,102 INFO L276 IsEmpty]: Start isEmpty. Operand 10978 states and 15059 transitions. [2021-11-17 04:36:38,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-11-17 04:36:38,103 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 04:36:38,103 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 04:36:38,103 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-17 04:36:38,103 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 04:36:38,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 04:36:38,104 INFO L85 PathProgramCache]: Analyzing trace with hash -1638571153, now seen corresponding path program 1 times [2021-11-17 04:36:38,104 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 04:36:38,104 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1209380590] [2021-11-17 04:36:38,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 04:36:38,104 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 04:36:38,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:36:38,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 04:36:38,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:36:38,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:36:38,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:36:38,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:36:38,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:36:38,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 04:36:38,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:36:38,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-11-17 04:36:38,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:36:38,309 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-17 04:36:38,309 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 04:36:38,309 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1209380590] [2021-11-17 04:36:38,309 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1209380590] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 04:36:38,309 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 04:36:38,310 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-17 04:36:38,310 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [336671711] [2021-11-17 04:36:38,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 04:36:38,310 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 04:36:38,310 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 04:36:38,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 04:36:38,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-11-17 04:36:38,311 INFO L87 Difference]: Start difference. First operand 10978 states and 15059 transitions. Second operand has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (8), 6 states have call predecessors, (8), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-11-17 04:36:45,009 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 04:36:47,040 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 04:36:50,669 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 04:36:58,022 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 04:37:11,889 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 04:37:28,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 04:37:28,937 INFO L93 Difference]: Finished difference Result 13435 states and 18954 transitions. [2021-11-17 04:37:28,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-17 04:37:28,937 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (8), 6 states have call predecessors, (8), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 54 [2021-11-17 04:37:28,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 04:37:28,968 INFO L225 Difference]: With dead ends: 13435 [2021-11-17 04:37:28,968 INFO L226 Difference]: Without dead ends: 13432 [2021-11-17 04:37:28,972 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2021-11-17 04:37:28,972 INFO L933 BasicCegarLoop]: 3008 mSDtfsCounter, 3445 mSDsluCounter, 2114 mSDsCounter, 0 mSdLazyCounter, 7808 mSolverCounterSat, 2768 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 46.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3856 SdHoareTripleChecker+Valid, 5122 SdHoareTripleChecker+Invalid, 10579 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2768 IncrementalHoareTripleChecker+Valid, 7808 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 49.6s IncrementalHoareTripleChecker+Time [2021-11-17 04:37:28,973 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3856 Valid, 5122 Invalid, 10579 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2768 Valid, 7808 Invalid, 3 Unknown, 0 Unchecked, 49.6s Time] [2021-11-17 04:37:28,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13432 states. [2021-11-17 04:37:29,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13432 to 10977. [2021-11-17 04:37:29,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10977 states, 7388 states have (on average 1.2907417433676232) internal successors, (9536), 7521 states have internal predecessors, (9536), 2758 states have call successors, (2758), 831 states have call predecessors, (2758), 830 states have return successors, (2756), 2740 states have call predecessors, (2756), 2756 states have call successors, (2756) [2021-11-17 04:37:29,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10977 states to 10977 states and 15050 transitions. [2021-11-17 04:37:29,338 INFO L78 Accepts]: Start accepts. Automaton has 10977 states and 15050 transitions. Word has length 54 [2021-11-17 04:37:29,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 04:37:29,338 INFO L470 AbstractCegarLoop]: Abstraction has 10977 states and 15050 transitions. [2021-11-17 04:37:29,339 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (8), 6 states have call predecessors, (8), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-11-17 04:37:29,339 INFO L276 IsEmpty]: Start isEmpty. Operand 10977 states and 15050 transitions. [2021-11-17 04:37:29,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-11-17 04:37:29,340 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 04:37:29,340 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 04:37:29,340 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-17 04:37:29,340 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 04:37:29,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 04:37:29,341 INFO L85 PathProgramCache]: Analyzing trace with hash 1462173231, now seen corresponding path program 1 times [2021-11-17 04:37:29,341 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 04:37:29,341 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2002956065] [2021-11-17 04:37:29,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 04:37:29,341 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 04:37:29,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:29,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 04:37:29,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:29,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:37:29,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:29,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:37:29,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:29,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-11-17 04:37:29,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:29,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-11-17 04:37:29,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:29,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 04:37:29,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:29,575 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-17 04:37:29,575 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 04:37:29,575 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2002956065] [2021-11-17 04:37:29,575 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2002956065] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 04:37:29,575 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 04:37:29,575 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-17 04:37:29,575 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1453954097] [2021-11-17 04:37:29,575 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 04:37:29,576 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-17 04:37:29,576 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 04:37:29,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-17 04:37:29,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-17 04:37:29,576 INFO L87 Difference]: Start difference. First operand 10977 states and 15050 transitions. Second operand has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 3 states have internal predecessors, (43), 3 states have call successors, (9), 7 states have call predecessors, (9), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2021-11-17 04:37:32,255 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 04:37:38,547 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 04:37:40,556 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 04:37:42,579 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 04:37:46,194 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 04:37:48,345 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 04:37:56,822 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 04:38:09,510 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 04:38:11,059 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 04:38:12,183 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 04:38:28,835 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 04:38:33,416 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 04:38:37,121 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 04:38:39,603 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 04:38:41,643 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 04:38:43,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 04:38:43,860 INFO L93 Difference]: Finished difference Result 16157 states and 23775 transitions. [2021-11-17 04:38:43,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-17 04:38:43,860 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 3 states have internal predecessors, (43), 3 states have call successors, (9), 7 states have call predecessors, (9), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 58 [2021-11-17 04:38:43,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 04:38:43,905 INFO L225 Difference]: With dead ends: 16157 [2021-11-17 04:38:43,905 INFO L226 Difference]: Without dead ends: 16154 [2021-11-17 04:38:43,910 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=71, Invalid=139, Unknown=0, NotChecked=0, Total=210 [2021-11-17 04:38:43,911 INFO L933 BasicCegarLoop]: 3533 mSDtfsCounter, 4102 mSDsluCounter, 8249 mSDsCounter, 0 mSdLazyCounter, 7930 mSolverCounterSat, 4256 mSolverCounterUnsat, 12 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 69.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4369 SdHoareTripleChecker+Valid, 11782 SdHoareTripleChecker+Invalid, 12198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4256 IncrementalHoareTripleChecker+Valid, 7930 IncrementalHoareTripleChecker+Invalid, 12 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 72.9s IncrementalHoareTripleChecker+Time [2021-11-17 04:38:43,912 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4369 Valid, 11782 Invalid, 12198 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4256 Valid, 7930 Invalid, 12 Unknown, 0 Unchecked, 72.9s Time] [2021-11-17 04:38:43,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16154 states. [2021-11-17 04:38:44,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16154 to 10976. [2021-11-17 04:38:44,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10976 states, 7388 states have (on average 1.2891174878180833) internal successors, (9524), 7520 states have internal predecessors, (9524), 2757 states have call successors, (2757), 831 states have call predecessors, (2757), 830 states have return successors, (2756), 2740 states have call predecessors, (2756), 2756 states have call successors, (2756) [2021-11-17 04:38:44,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10976 states to 10976 states and 15037 transitions. [2021-11-17 04:38:44,375 INFO L78 Accepts]: Start accepts. Automaton has 10976 states and 15037 transitions. Word has length 58 [2021-11-17 04:38:44,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 04:38:44,376 INFO L470 AbstractCegarLoop]: Abstraction has 10976 states and 15037 transitions. [2021-11-17 04:38:44,376 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 3 states have internal predecessors, (43), 3 states have call successors, (9), 7 states have call predecessors, (9), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2021-11-17 04:38:44,377 INFO L276 IsEmpty]: Start isEmpty. Operand 10976 states and 15037 transitions. [2021-11-17 04:38:44,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-11-17 04:38:44,381 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 04:38:44,381 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-17 04:38:44,381 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-17 04:38:44,381 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 04:38:44,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 04:38:44,382 INFO L85 PathProgramCache]: Analyzing trace with hash -879177529, now seen corresponding path program 1 times [2021-11-17 04:38:44,382 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 04:38:44,382 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [362299206] [2021-11-17 04:38:44,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 04:38:44,382 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 04:38:44,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:44,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 04:38:44,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:44,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:38:44,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:44,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:38:44,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:44,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 04:38:44,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:44,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:38:44,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:44,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:38:44,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:44,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-11-17 04:38:44,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:44,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 04:38:44,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:44,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-11-17 04:38:44,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:44,661 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-11-17 04:38:44,661 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 04:38:44,661 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [362299206] [2021-11-17 04:38:44,661 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [362299206] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 04:38:44,661 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 04:38:44,662 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-17 04:38:44,662 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [854605504] [2021-11-17 04:38:44,662 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 04:38:44,663 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-17 04:38:44,663 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 04:38:44,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-17 04:38:44,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-11-17 04:38:44,664 INFO L87 Difference]: Start difference. First operand 10976 states and 15037 transitions. Second operand has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (10), 5 states have call predecessors, (10), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-11-17 04:38:47,481 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 04:38:49,549 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 04:38:56,586 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 04:38:58,601 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 04:39:01,958 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 04:39:04,119 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 04:39:06,252 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 04:39:08,934 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 04:39:11,109 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 04:39:13,967 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 04:39:24,219 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 04:39:27,165 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 04:39:30,020 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 04:39:37,587 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 04:39:49,999 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 04:39:52,566 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 04:39:54,110 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 04:39:57,037 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.64s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 04:40:06,600 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 04:40:08,447 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 04:40:36,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 04:40:36,038 INFO L93 Difference]: Finished difference Result 25180 states and 35286 transitions. [2021-11-17 04:40:36,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-17 04:40:36,039 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (10), 5 states have call predecessors, (10), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 90 [2021-11-17 04:40:36,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 04:40:36,107 INFO L225 Difference]: With dead ends: 25180 [2021-11-17 04:40:36,108 INFO L226 Difference]: Without dead ends: 14212 [2021-11-17 04:40:36,178 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2021-11-17 04:40:36,197 INFO L933 BasicCegarLoop]: 3572 mSDtfsCounter, 9646 mSDsluCounter, 5077 mSDsCounter, 0 mSdLazyCounter, 14006 mSolverCounterSat, 7438 mSolverCounterUnsat, 14 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 103.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10217 SdHoareTripleChecker+Valid, 8649 SdHoareTripleChecker+Invalid, 21458 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 7438 IncrementalHoareTripleChecker+Valid, 14006 IncrementalHoareTripleChecker+Invalid, 14 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 109.6s IncrementalHoareTripleChecker+Time [2021-11-17 04:40:36,212 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10217 Valid, 8649 Invalid, 21458 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [7438 Valid, 14006 Invalid, 14 Unknown, 0 Unchecked, 109.6s Time] [2021-11-17 04:40:36,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14212 states. [2021-11-17 04:40:36,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14212 to 10978. [2021-11-17 04:40:36,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10978 states, 7390 states have (on average 1.2890392422192152) internal successors, (9526), 7522 states have internal predecessors, (9526), 2757 states have call successors, (2757), 831 states have call predecessors, (2757), 830 states have return successors, (2756), 2740 states have call predecessors, (2756), 2756 states have call successors, (2756) [2021-11-17 04:40:36,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10978 states to 10978 states and 15039 transitions. [2021-11-17 04:40:36,771 INFO L78 Accepts]: Start accepts. Automaton has 10978 states and 15039 transitions. Word has length 90 [2021-11-17 04:40:36,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 04:40:36,771 INFO L470 AbstractCegarLoop]: Abstraction has 10978 states and 15039 transitions. [2021-11-17 04:40:36,771 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (10), 5 states have call predecessors, (10), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-11-17 04:40:36,771 INFO L276 IsEmpty]: Start isEmpty. Operand 10978 states and 15039 transitions. [2021-11-17 04:40:36,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-11-17 04:40:36,775 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 04:40:36,775 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-17 04:40:36,776 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-17 04:40:36,776 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 04:40:36,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 04:40:36,776 INFO L85 PathProgramCache]: Analyzing trace with hash -1439877307, now seen corresponding path program 1 times [2021-11-17 04:40:36,776 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 04:40:36,776 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [390848498] [2021-11-17 04:40:36,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 04:40:36,777 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 04:40:36,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:36,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 04:40:36,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:36,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:40:36,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:36,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:40:36,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:36,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 04:40:36,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:36,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:40:36,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:36,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:40:36,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:36,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-11-17 04:40:36,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:36,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 04:40:36,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:36,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-11-17 04:40:36,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:36,979 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-11-17 04:40:36,979 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 04:40:36,979 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [390848498] [2021-11-17 04:40:36,979 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [390848498] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 04:40:36,980 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 04:40:36,980 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-17 04:40:36,980 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [38470781] [2021-11-17 04:40:36,980 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 04:40:36,980 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 04:40:36,980 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 04:40:36,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 04:40:36,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-11-17 04:40:36,981 INFO L87 Difference]: Start difference. First operand 10978 states and 15039 transitions. Second operand has 6 states, 6 states have (on average 10.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (10), 5 states have call predecessors, (10), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-11-17 04:40:40,046 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 04:40:45,084 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 04:40:47,092 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 04:40:50,519 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 04:40:52,666 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 04:41:00,245 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 04:41:11,326 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 04:41:12,856 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 04:41:18,689 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 04:41:28,613 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 04:41:29,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 04:41:29,786 INFO L93 Difference]: Finished difference Result 20551 states and 28475 transitions. [2021-11-17 04:41:29,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-17 04:41:29,786 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (10), 5 states have call predecessors, (10), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 90 [2021-11-17 04:41:29,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 04:41:29,816 INFO L225 Difference]: With dead ends: 20551 [2021-11-17 04:41:29,816 INFO L226 Difference]: Without dead ends: 9579 [2021-11-17 04:41:29,837 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2021-11-17 04:41:29,837 INFO L933 BasicCegarLoop]: 2900 mSDtfsCounter, 4018 mSDsluCounter, 1973 mSDsCounter, 0 mSdLazyCounter, 6027 mSolverCounterSat, 3710 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 48.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4434 SdHoareTripleChecker+Valid, 4873 SdHoareTripleChecker+Invalid, 9744 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3710 IncrementalHoareTripleChecker+Valid, 6027 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 51.9s IncrementalHoareTripleChecker+Time [2021-11-17 04:41:29,838 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4434 Valid, 4873 Invalid, 9744 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3710 Valid, 6027 Invalid, 7 Unknown, 0 Unchecked, 51.9s Time] [2021-11-17 04:41:29,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9579 states. [2021-11-17 04:41:30,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9579 to 7861. [2021-11-17 04:41:30,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7861 states, 5292 states have (on average 1.287037037037037) internal successors, (6811), 5387 states have internal predecessors, (6811), 1963 states have call successors, (1963), 606 states have call predecessors, (1963), 605 states have return successors, (1962), 1950 states have call predecessors, (1962), 1962 states have call successors, (1962) [2021-11-17 04:41:30,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7861 states to 7861 states and 10736 transitions. [2021-11-17 04:41:30,180 INFO L78 Accepts]: Start accepts. Automaton has 7861 states and 10736 transitions. Word has length 90 [2021-11-17 04:41:30,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 04:41:30,181 INFO L470 AbstractCegarLoop]: Abstraction has 7861 states and 10736 transitions. [2021-11-17 04:41:30,181 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (10), 5 states have call predecessors, (10), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-11-17 04:41:30,181 INFO L276 IsEmpty]: Start isEmpty. Operand 7861 states and 10736 transitions. [2021-11-17 04:41:30,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-11-17 04:41:30,185 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 04:41:30,185 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2021-11-17 04:41:30,186 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-17 04:41:30,186 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 04:41:30,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 04:41:30,186 INFO L85 PathProgramCache]: Analyzing trace with hash 804025339, now seen corresponding path program 1 times [2021-11-17 04:41:30,186 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 04:41:30,186 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [384733179] [2021-11-17 04:41:30,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 04:41:30,187 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 04:41:30,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:41:30,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 04:41:30,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:41:30,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:41:30,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:41:30,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:41:30,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:41:30,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 04:41:30,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:41:30,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:41:30,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:41:30,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:41:30,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:41:30,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-11-17 04:41:30,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:41:30,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:41:30,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:41:30,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:41:30,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:41:30,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-11-17 04:41:30,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:41:30,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-11-17 04:41:30,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:41:30,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-11-17 04:41:30,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:41:30,511 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2021-11-17 04:41:30,511 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 04:41:30,512 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [384733179] [2021-11-17 04:41:30,512 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [384733179] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 04:41:30,512 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 04:41:30,512 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-17 04:41:30,512 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1816010309] [2021-11-17 04:41:30,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 04:41:30,513 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-17 04:41:30,513 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 04:41:30,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-17 04:41:30,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-11-17 04:41:30,513 INFO L87 Difference]: Start difference. First operand 7861 states and 10736 transitions. Second operand has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 4 states have internal predecessors, (62), 3 states have call successors, (11), 5 states have call predecessors, (11), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2021-11-17 04:41:36,953 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 04:41:38,987 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 04:41:42,372 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 04:41:44,569 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 04:41:46,714 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 04:41:48,793 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 04:41:54,558 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 04:41:56,572 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 04:41:58,584 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 04:42:07,359 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 04:42:27,298 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 04:42:28,806 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 04:42:29,999 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 04:42:40,345 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 04:42:41,642 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 04:42:48,652 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 04:42:49,718 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 04:42:58,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 04:42:58,824 INFO L93 Difference]: Finished difference Result 18259 states and 25406 transitions. [2021-11-17 04:42:58,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-17 04:42:58,825 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 4 states have internal predecessors, (62), 3 states have call successors, (11), 5 states have call predecessors, (11), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 107 [2021-11-17 04:42:58,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 04:42:58,862 INFO L225 Difference]: With dead ends: 18259 [2021-11-17 04:42:58,862 INFO L226 Difference]: Without dead ends: 12742 [2021-11-17 04:42:58,889 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2021-11-17 04:42:58,895 INFO L933 BasicCegarLoop]: 3614 mSDtfsCounter, 9154 mSDsluCounter, 2741 mSDsCounter, 0 mSdLazyCounter, 11166 mSolverCounterSat, 8255 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 81.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9513 SdHoareTripleChecker+Valid, 6355 SdHoareTripleChecker+Invalid, 19431 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 8255 IncrementalHoareTripleChecker+Valid, 11166 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 86.7s IncrementalHoareTripleChecker+Time [2021-11-17 04:42:58,895 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9513 Valid, 6355 Invalid, 19431 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [8255 Valid, 11166 Invalid, 10 Unknown, 0 Unchecked, 86.7s Time] [2021-11-17 04:42:58,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12742 states. [2021-11-17 04:42:59,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12742 to 10426. [2021-11-17 04:42:59,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10426 states, 7015 states have (on average 1.2859586600142552) internal successors, (9021), 7143 states have internal predecessors, (9021), 2599 states have call successors, (2599), 812 states have call predecessors, (2599), 811 states have return successors, (2598), 2582 states have call predecessors, (2598), 2598 states have call successors, (2598) [2021-11-17 04:42:59,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10426 states to 10426 states and 14218 transitions. [2021-11-17 04:42:59,385 INFO L78 Accepts]: Start accepts. Automaton has 10426 states and 14218 transitions. Word has length 107 [2021-11-17 04:42:59,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 04:42:59,386 INFO L470 AbstractCegarLoop]: Abstraction has 10426 states and 14218 transitions. [2021-11-17 04:42:59,386 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 4 states have internal predecessors, (62), 3 states have call successors, (11), 5 states have call predecessors, (11), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2021-11-17 04:42:59,386 INFO L276 IsEmpty]: Start isEmpty. Operand 10426 states and 14218 transitions. [2021-11-17 04:42:59,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-11-17 04:42:59,392 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 04:42:59,392 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 04:42:59,392 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-11-17 04:42:59,392 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 04:42:59,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 04:42:59,393 INFO L85 PathProgramCache]: Analyzing trace with hash -799038922, now seen corresponding path program 1 times [2021-11-17 04:42:59,393 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 04:42:59,393 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [453002896] [2021-11-17 04:42:59,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 04:42:59,393 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 04:42:59,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:42:59,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 04:42:59,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:42:59,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:42:59,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:42:59,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:42:59,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:42:59,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 04:42:59,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:42:59,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:42:59,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:42:59,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:42:59,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:42:59,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-11-17 04:42:59,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:42:59,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:42:59,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:42:59,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:42:59,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:42:59,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-11-17 04:42:59,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:42:59,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-11-17 04:42:59,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:42:59,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2021-11-17 04:42:59,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:42:59,664 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2021-11-17 04:42:59,664 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 04:42:59,665 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [453002896] [2021-11-17 04:42:59,665 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [453002896] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 04:42:59,665 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 04:42:59,665 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-17 04:42:59,665 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1715098925] [2021-11-17 04:42:59,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 04:42:59,665 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 04:42:59,666 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 04:42:59,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 04:42:59,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-11-17 04:42:59,666 INFO L87 Difference]: Start difference. First operand 10426 states and 14218 transitions. Second operand has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 3 states have internal predecessors, (67), 3 states have call successors, (11), 6 states have call predecessors, (11), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2021-11-17 04:43:04,941 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 04:43:07,887 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 04:43:14,431 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 04:43:16,626 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 04:43:31,746 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.84s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 04:43:36,751 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 04:43:38,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 04:43:38,771 INFO L93 Difference]: Finished difference Result 12734 states and 17847 transitions. [2021-11-17 04:43:38,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-17 04:43:38,772 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 3 states have internal predecessors, (67), 3 states have call successors, (11), 6 states have call predecessors, (11), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 116 [2021-11-17 04:43:38,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 04:43:38,774 INFO L225 Difference]: With dead ends: 12734 [2021-11-17 04:43:38,774 INFO L226 Difference]: Without dead ends: 0 [2021-11-17 04:43:38,792 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2021-11-17 04:43:38,793 INFO L933 BasicCegarLoop]: 3227 mSDtfsCounter, 6350 mSDsluCounter, 1170 mSDsCounter, 0 mSdLazyCounter, 4518 mSolverCounterSat, 5994 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 35.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6469 SdHoareTripleChecker+Valid, 4397 SdHoareTripleChecker+Invalid, 10515 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5994 IncrementalHoareTripleChecker+Valid, 4518 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 38.0s IncrementalHoareTripleChecker+Time [2021-11-17 04:43:38,793 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6469 Valid, 4397 Invalid, 10515 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5994 Valid, 4518 Invalid, 3 Unknown, 0 Unchecked, 38.0s Time] [2021-11-17 04:43:38,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-17 04:43:38,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-17 04:43:38,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-17 04:43:38,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-17 04:43:38,796 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 116 [2021-11-17 04:43:38,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 04:43:38,796 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-17 04:43:38,796 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 3 states have internal predecessors, (67), 3 states have call successors, (11), 6 states have call predecessors, (11), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2021-11-17 04:43:38,797 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-17 04:43:38,797 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-17 04:43:38,799 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-17 04:43:38,799 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-11-17 04:43:38,800 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-17 04:43:50,629 WARN L227 SmtUtils]: Spent 5.85s on a formula simplification. DAG size of input: 77 DAG size of output: 75 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-17 04:44:07,743 WARN L227 SmtUtils]: Spent 5.81s on a formula simplification. DAG size of input: 77 DAG size of output: 75 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-17 04:44:19,360 WARN L227 SmtUtils]: Spent 5.91s on a formula simplification. DAG size of input: 77 DAG size of output: 75 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) Killed by 15